ci: migrate workflows and dependencies to Gitea

Updated README to improve structure and clarity.

.dockerignore

@@ -5,12 +5,19 @@
 !Dockerfile
 
 # Source
+!config.ts
 !src/
-!prisma/
+!modules/
 
 # Dependencies
 !package.json
 !pnpm-lock.yaml
 
-# Typescript compiller config
+# Build
+!build.sh
+!config.tsconfig.json
 !tsconfig.json
+
+!.ci/
+!.ci/vendor/
+!.ci/vendor/yt-dlp

.eslintrc.json

@@ -1,21 +0,0 @@
-{
-  "root": true,
-  "parser": "@typescript-eslint/parser",
-  "parserOptions": {
-    "warnOnUnsupportedTypeScriptVersion": false,
-    "sourceType": "module"
-  },
-  "env": {
-    "browser": false,
-    "node": true,
-    "es6": true
-  },
-  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier"],
-  "plugins": ["@typescript-eslint", "import", "simple-import-sort"],
-  "ignorePatterns": ["**/node_modules/**", "/dist/**", "/tests/**"],
-  "rules": {
-    "curly": ["error", "all"],
-    "simple-import-sort/imports": "error",
-    "simple-import-sort/exports": "error"
-  }
-}

.gitea/scripts/docker.py

@@ -0,0 +1,64 @@
+import json
+import os
+import re
+import subprocess
+import sys
+from pathlib import Path
+
+
+def lines(value):
+    return [line.strip() for line in value.splitlines() if line.strip()]
+
+
+def output(name, value):
+    with open(os.environ['GITHUB_OUTPUT'], 'a') as stream:
+        stream.write(f'{name}<<GITEA_VALUE\n{value}\nGITEA_VALUE\n')
+
+
+def metadata(images, rules, sha):
+    result = []
+    for rule in lines(rules):
+        fields = dict(part.split('=', 1) for part in rule.split(',') if '=' in part)
+        if fields.get('enable', 'true').lower() == 'false':
+            continue
+        kind = fields.get('type')
+        if kind == 'sha':
+            tag = 'sha-' + sha[:7]
+        elif kind == 'raw':
+            tag = fields['value']
+        else:
+            raise ValueError('Unsupported metadata rule')
+        if not re.fullmatch(r'[A-Za-z0-9_][A-Za-z0-9_.-]{0,127}', tag):
+            raise ValueError('Invalid image tag')
+        result.extend(image.lower() + ':' + tag for image in lines(images))
+    return result
+
+
+def main():
+    mode = sys.argv[1]
+    if mode == 'login':
+        subprocess.run(['docker', 'login', os.environ['REGISTRY'], '--username', os.environ['REGISTRY_USER'], '--password-stdin'], input=os.environ['REGISTRY_TOKEN'], text=True, check=True)
+    elif mode == 'metadata':
+        output('tags', '\n'.join(metadata(os.environ['IMAGES'], os.environ['TAG_RULES'], os.environ['SOURCE_SHA'])))
+        output('labels', 'org.opencontainers.image.revision=' + os.environ['SOURCE_SHA'])
+    elif mode == 'build':
+        command = ['docker', 'buildx', 'build', '--metadata-file', '/tmp/image-metadata.json']
+        for env, flag in [('TAGS', '--tag'), ('LABELS', '--label'), ('BUILD_ARGS', '--build-arg')]:
+            for value in lines(os.environ.get(env, '')):
+                command.extend([flag, value])
+        command += ['--label', 'org.opencontainers.image.revision=' + os.environ['SOURCE_SHA'], '--label', 'com.ermnvldmr.ci.run=' + os.environ['RUN_ID']]
+        if os.environ.get('PLATFORMS'):
+            command += ['--platform', os.environ['PLATFORMS']]
+        if os.environ.get('DOCKERFILE'):
+            command += ['--file', os.environ['DOCKERFILE']]
+        if os.environ.get('PUSH', 'false').lower() == 'true':
+            command.append('--push')
+        command.append(os.environ.get('CONTEXT', '.'))
+        subprocess.run(command, check=True)
+        output('digest', json.loads(Path('/tmp/image-metadata.json').read_text())['containerimage.digest'])
+    else:
+        raise ValueError('Unknown docker operation')
+
+
+if __name__ == '__main__':
+    main()

.gitea/workflows/ci.yml

@@ -0,0 +1,145 @@
+name: Continuous Integration
+'on':
+  push:
+    tags:
+    - '*'
+    branches:
+    - master
+jobs:
+  mocha:
+    runs-on: apex-debian13
+    strategy:
+      matrix:
+        node-version:
+        - 22.x
+        pnpm-version:
+        - 9
+    steps:
+    - name: Check out the repo
+      run: "set -euo pipefail\ncase \"$CHECKOUT_REF\" in -*) exit 1;; esac\nGITHUB_SERVER_URL=${GITHUB_SERVER_URL%/}\n\
+        case \"$GITHUB_SERVER_URL\" in https://git.ermnvldmr.com) ;; *) exit 1;; esac\n\
+        AUTH=$(printf 'deytenit:%s' \"$CHECKOUT_TOKEN\" | base64 -w0)\nHEADER=\"http.${GITHUB_SERVER_URL}/.extraheader=AUTHORIZATION:\
+        \ basic $AUTH\"\ngit init \"$GITHUB_WORKSPACE\"\ncd \"$GITHUB_WORKSPACE\"\n\
+        git remote add origin \"$GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git\"\ngit -c\
+        \ \"$HEADER\" fetch --tags origin '+refs/heads/*:refs/remotes/origin/*'\n\
+        git -c \"$HEADER\" fetch origin \"$CHECKOUT_REF\"\ngit checkout --detach FETCH_HEAD\n\
+        test \"$(git rev-parse HEAD)\" = \"$GITHUB_SHA\"\nif [ \"$CHECKOUT_SUBMODULES\"\
+        \ = recursive ]; then\n    key_file=$(mktemp \"${RUNNER_TEMP:-/tmp}/hextra-key.XXXXXX\"\
+        )\n    trap 'rm -f \"$key_file\"' EXIT\n    umask 077\n    printf '%s\\n'\
+        \ \"$HEXTRA_READ_KEY\" > \"$key_file\"\n    chmod 600 \"$key_file\"\n    export\
+        \ GIT_SSH_COMMAND=\"ssh -T -i $key_file -o IdentitiesOnly=yes -o StrictHostKeyChecking=yes\
+        \ -o HostKeyAlgorithms=ssh-ed25519 -o UserKnownHostsFile=$GITHUB_WORKSPACE/.gitea/known_hosts\"\
+        \n    git submodule update --init --recursive\nfi\nif [ \"$PERSIST_CREDENTIALS\"\
+        \ = true ]; then\n    git config \"http.${GITHUB_SERVER_URL}/.extraheader\"\
+        \ \"AUTHORIZATION: basic $AUTH\"\nfi\n"
+      env:
+        CHECKOUT_REF: ${{ github.sha }}
+        CHECKOUT_SUBMODULES: 'false'
+        CHECKOUT_TOKEN: ${{ github.token }}
+        PERSIST_CREDENTIALS: 'false'
+        HEXTRA_READ_KEY: ''
+    - run: 'case "$PNPM_VERSION" in 8|9|9.12.3) ;; *) exit 1;; esac
+
+        test -x "/opt/ci/pnpm/$PNPM_VERSION/bin/pnpm"
+
+        echo "/opt/ci/pnpm/$PNPM_VERSION/bin" >> "$GITHUB_PATH"'
+      env:
+        PNPM_VERSION: ${{ matrix.pnpm-version }}
+    - name: Use Node.js ${{ matrix.node-version }}
+      run: "case \"$NODE_VERSION\" in\n  18*) major=18;; 20*) major=20;; 22*) major=22;;\
+        \ *) exit 1;;\nesac\ntest -x \"/opt/ci/node/$major/bin/node\"\necho \"/opt/ci/node/$major/bin\"\
+        \ >> \"$GITHUB_PATH\""
+      env:
+        NODE_VERSION: ${{ matrix.node-version }}
+    - name: Install dependencies
+      run: pnpm install
+    - name: ESLint & Prettier
+      run: pnpm run lint
+    - name: Build
+      run: pnpm run build
+    - name: Test
+      run: pnpm run --if-present test
+    env:
+      npm_config_build_from_source: 'true'
+  docker:
+    runs-on: apex-debian13
+    needs: mocha
+    permissions:
+      contents: read
+      packages: write
+    steps:
+    - name: Check out the repo
+      run: "set -euo pipefail\ncase \"$CHECKOUT_REF\" in -*) exit 1;; esac\nGITHUB_SERVER_URL=${GITHUB_SERVER_URL%/}\n\
+        case \"$GITHUB_SERVER_URL\" in https://git.ermnvldmr.com) ;; *) exit 1;; esac\n\
+        AUTH=$(printf 'deytenit:%s' \"$CHECKOUT_TOKEN\" | base64 -w0)\nHEADER=\"http.${GITHUB_SERVER_URL}/.extraheader=AUTHORIZATION:\
+        \ basic $AUTH\"\ngit init \"$GITHUB_WORKSPACE\"\ncd \"$GITHUB_WORKSPACE\"\n\
+        git remote add origin \"$GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git\"\ngit -c\
+        \ \"$HEADER\" fetch --tags origin '+refs/heads/*:refs/remotes/origin/*'\n\
+        git -c \"$HEADER\" fetch origin \"$CHECKOUT_REF\"\ngit checkout --detach FETCH_HEAD\n\
+        test \"$(git rev-parse HEAD)\" = \"$GITHUB_SHA\"\nif [ \"$CHECKOUT_SUBMODULES\"\
+        \ = recursive ]; then\n    key_file=$(mktemp \"${RUNNER_TEMP:-/tmp}/hextra-key.XXXXXX\"\
+        )\n    trap 'rm -f \"$key_file\"' EXIT\n    umask 077\n    printf '%s\\n'\
+        \ \"$HEXTRA_READ_KEY\" > \"$key_file\"\n    chmod 600 \"$key_file\"\n    export\
+        \ GIT_SSH_COMMAND=\"ssh -T -i $key_file -o IdentitiesOnly=yes -o StrictHostKeyChecking=yes\
+        \ -o HostKeyAlgorithms=ssh-ed25519 -o UserKnownHostsFile=$GITHUB_WORKSPACE/.gitea/known_hosts\"\
+        \n    git submodule update --init --recursive\nfi\nif [ \"$PERSIST_CREDENTIALS\"\
+        \ = true ]; then\n    git config \"http.${GITHUB_SERVER_URL}/.extraheader\"\
+        \ \"AUTHORIZATION: basic $AUTH\"\nfi\n"
+      env:
+        CHECKOUT_REF: ${{ github.sha }}
+        CHECKOUT_SUBMODULES: 'false'
+        CHECKOUT_TOKEN: ${{ github.token }}
+        PERSIST_CREDENTIALS: 'false'
+        HEXTRA_READ_KEY: ''
+    - name: Stage verified yt-dlp asset
+      run: 'mkdir -p .ci/vendor
+
+        cp /opt/ci/assets/yt-dlp .ci/vendor/yt-dlp'
+    - name: Set up QEMU
+      run: test -r /proc/sys/fs/binfmt_misc/qemu-aarch64
+    - name: Set up Docker Buildx
+      run: 'docker buildx version
+
+        docker buildx create --name apex-ci --driver docker-container --use
+
+        docker buildx inspect --bootstrap'
+    - name: Log in to GitHub Container Registry
+      run: python3 .gitea/scripts/docker.py login
+      env:
+        REGISTRY: git.ermnvldmr.com
+        REGISTRY_USER: ${{ github.repository_owner }}
+        REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+    - name: Docker Generate Meta
+      id: meta
+      run: python3 .gitea/scripts/docker.py metadata
+      env:
+        IMAGES: 'git.ermnvldmr.com/deytenit/quetza
+
+          '
+        TAG_RULES: 'type=raw,value=latest,enable=${{ github.ref_type == ''tag'' &&
+          !contains(github.ref_name, ''-'') }}
+
+          type=raw,value=latest-dev,enable=${{ github.ref_type == ''branch'' && github.ref_name
+          == ''master'' }}
+
+          type=raw,value=${{ github.ref_name }}
+
+          type=raw,value=${{ github.sha }},enable=${{ github.ref_type == ''branch''
+          }}
+
+          '
+        SOURCE_SHA: ${{ github.sha }}
+    - name: Build and Push Docker Image
+      run: python3 .gitea/scripts/docker.py build
+      env:
+        TAGS: ${{ steps.meta.outputs.tags }}
+        LABELS: ${{ steps.meta.outputs.labels }}
+        BUILD_ARGS: ''
+        DOCKERFILE: ''
+        PLATFORMS: linux/amd64,linux/arm64
+        PUSH: 'true'
+        CONTEXT: .
+        SOURCE_SHA: ${{ github.sha }}
+        RUN_ID: ${{ github.run_id }}
+    env:
+      npm_config_build_from_source: 'true'

.github/workflows/actions.yml

@@ -1,68 +0,0 @@
-name: actions
-
-on:
-  push:
-    tags:
-      - "*"
-
-jobs:
-  mocha:
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        node-version: [18.x]
-        pnpm-version: [8]
-
-    steps:
-      - name: Check out the repo
-        uses: actions/checkout@v3
-
-      - uses: pnpm/action-setup@v2
-        with:
-          version: ${{ matrix.pnpm-version }}
-
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
-        with:
-          node-version: ${{ matrix.node-version }}
-
-      - name: Install dependencies
-        run: pnpm install
-
-      - name: ESLint & Prettier
-        run: pnpm run lint
-
-      - name: Build
-        run: pnpm run build
-
-      - name: Test
-        run: pnpm run --if-present test
-
-  docker:
-    runs-on: ubuntu-latest
-    needs: mocha
-
-    steps:
-      - name: Check out the repo
-        uses: actions/checkout@v3
-
-      - name: Log in to Docker Hub
-        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
-        with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
-        with:
-          images: unknowableshade/quetza-bot
-
-      - name: Build and push Docker image
-        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
-        with:
-          context: .
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}

.prettierrc.json

@@ -5,7 +5,7 @@
   "printWidth": 100,
   "arrowParens": "always",
   "bracketSpacing": true,
-  "endOfLine": "crlf",
+  "endOfLine": "lf",
   "overrides": [
     {
       "files": ["**/*.json, **/*.yml"],

Dockerfile

@@ -1,6 +1,13 @@
-FROM node:18-alpine as builder
+FROM node:20-alpine as builder
 
-RUN npm install -g pnpm
+RUN apk add --no-cache python3
+RUN apk add --no-cache curl
+RUN apk add --no-cache make
+RUN apk add --no-cache gcc
+RUN apk add --no-cache build-base
+
+RUN npm install -g pnpm@9.12.3
+ENV npm_config_build_from_source=true
 
 WORKDIR /usr/src/app
 
@@ -12,32 +19,27 @@ COPY . .
 
 RUN pnpm run build
 
-FROM node:18-alpine
+RUN mkdir ./dist/bin/
-
+COPY .ci/vendor/yt-dlp /usr/src/app/dist/bin/yt-dlp
-RUN apk update
+RUN chmod a+rx /usr/src/app/dist/bin/yt-dlp
-RUN apk add --no-cache bash
-RUN apk add --no-cache curl
-RUN apk add --no-cache ffmpeg
-RUN apk add --no-cache python3
-
-RUN npm install -g pnpm
-
-ENV NODE_ENV production
-USER node
-
-WORKDIR /usr/src/app
-
-RUN mkdir bin
-RUN curl -L https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -o /usr/src/app/bin/yt-dlp
-RUN chmod a+rx /usr/src/app/bin/yt-dlp
-
-COPY prisma/ .
-COPY package.json pnpm-lock.yaml ./
 
 RUN pnpm install --prod
 
-RUN pnpx prisma generate
 
-COPY --from=builder /usr/src/app/dist ./dist
+FROM node:20-alpine
 
-CMD [ "pnpm", "start" ]
+RUN apk update
+RUN apk add --no-cache ffmpeg
+RUN apk add --no-cache python3
+
+USER node
+ENV NODE_ENV production
+
+WORKDIR /usr/src/app
+
+COPY package.json ./
+
+COPY --from=builder /usr/src/app/node_modules ./node_modules
+COPY --from=builder /usr/src/app/dist ./
+
+CMD [ "node", "./src/index.js" ]

Procfile

@@ -1 +0,0 @@
-worker: npm start

README.md

@@ -1,16 +1,66 @@
-# Quetza 4
+![quetza-logo](./assets/quetza-logo-readme.png)
 
-_Neat typescript discord bot._
+# Quetza │ [![Build Status](https://github.com/unknowableshade/quetza/actions/workflows/ci.yml/badge.svg?branch=master&event=push)](https://github.com/unknowableshade/quetza/actions/workflows/ci.yml)
 
-## About
+Awesome Discord bot that performs various duties on my server.
 
-- Base player features.
+## Quick Start
-- Play music from YouTube and many other sites.
-- Lots of different filters _(nightcore, earrape etc.)_.
-- Slash commands.
 
-## Links
+- [Documentation](<https://docs.ermnvldmr.com/en/quetza/>)
+- [Docker Image](<https://ghcr.io/deytenit/quetza>)
+- [Report an issue](<https://github.com/deyteit/Quetza/issues>)
 
-- **[Dependencies](https://github.com/unknowableshade/quetza-bot/blob/master/package.json)**
+## Who Are You?
-- **[Docker](https://hub.docker.com/repository/docker/unknowableshade/quetza-bot)**
+
-- **[Licence](https://github.com/unknowableshade/5a0b-bot/blob/master/LICENSE)**
+### Visitor
+
+Just interested in what Quetza can do.
+
+- **See Quetza in Action by running an image**: [ghcr.io: quetza image](https://ghcr.io/deytenit/quetza)
+
+### Developer
+
+Want to run or contribute to the bot.
+
+- **Documentation**: [Docs: Quetza](https://docs.ermnvldmr.com/en/quetza/)
+- **Run with Docker** (recommended):
+  ```bash
+  docker run \
+    -e DISCORD_TOKEN=<your-token> \
+    --name quetza -d \
+    ghcr.io/deyteit/quetza:latest
+  ```
+- **Build from Source**:
+  ```bash
+  pnpm install
+  pnpm run build
+  pnpm start
+  ```
+- **Environment Variables**:
+  - `DISCORD_TOKEN`: Generated at [Discord Developer Portal](https://discord.com/developers/applications)
+
+### Designer
+
+Interested in the visual design and messaging.
+
+- **Icons & Branding**: See [assets/](./assets/) directory for logos and visual elements
+- **Message Typography**: Explore Discord embeds and message formatting in the `lib/replies.ts` files of the respectful modules.
+- **Design License**: Branding assets are separately licensed (see [LICENSE](./assets/LICENSE))
+
+### Contributor
+
+Want to submit improvements?
+
+Just create a Pull-Request, and I would be greatful. (or just fork repo for yourself, then I won't even be needed)
+
+## Communication & Support
+
+- **Issues**: [Github: issues](https://github.com/deyteit/Quetza/issues)
+
+> Not a fact that I would care about that
+
+## License
+
+**Quetza's** source code is licensed under **[the MIT Licence](./LICENSE)**.
+
+**Notice!** This does not cover '**_Quetza_**' branding such as **[logo](./assets/quetza-logo.png)** or other **[assets listed](./assets/)**, as these are protected by **[the separate licence](./assets/LICENSE)**.

assets/LICENSE

@@ -0,0 +1,407 @@
+Attribution-NonCommercial 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of
+Creative Commons public licenses does not create a lawyer-client or
+other relationship. Creative Commons makes its licenses and related
+information available on an "as-is" basis. Creative Commons gives no
+warranties regarding its licenses, any material licensed under their
+terms and conditions, or any related information. Creative Commons
+disclaims all liability for damages resulting from their use to the
+fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and
+conditions that creators and other rights holders may use to share
+original works of authorship and other material subject to copyright
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+following considerations are for informational purposes only, are not
+exhaustive, and do not form part of our licenses.
+
+     Considerations for licensors: Our public licenses are
+     intended for use by those authorized to give the public
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+
+     Considerations for the public: By using one of our public
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+    wiki.creativecommons.org/Considerations_for_licensees
+
+=======================================================================
+
+Creative Commons Attribution-NonCommercial 4.0 International Public
+License
+
+By exercising the Licensed Rights (defined below), You accept and agree
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+Attribution-NonCommercial 4.0 International Public License ("Public
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+
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+  d. Effective Technological Measures means those measures that, in the
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+
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+
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+  h. Licensor means the individual(s) or entity(ies) granting rights
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+
+  i. NonCommercial means not primarily intended for or directed towards
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+  b. Other rights.
+
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+                    attribution, in any reasonable manner requested by
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+                    designated);
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+                ii. a copyright notice;
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+                iv. a notice that refers to the disclaimer of
+                    warranties;
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+                 v. a URI or hyperlink to the Licensed Material to the
+                    extent reasonably practicable;
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+            b. indicate if You modified the Licensed Material and
+               retain an indication of any previous modifications; and
+
+            c. indicate the Licensed Material is licensed under this
+               Public License, and include the text of, or the URI or
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+       2. You may satisfy the conditions in Section 3(a)(1) in any
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+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
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+Section 6 -- Term and Termination.
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build.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Build typescript
+pnpm exec tsc --build
+
+# Map path aliases from tsconfigs
+for TS_CONFIG in ./config.tsconfig.json ./src/tsconfig.json ./modules/*/tsconfig.json; do
+	pnpm exec tsc-alias -p "$TS_CONFIG"
+done

config.ts

@@ -0,0 +1,65 @@
+import { ActivityOptions, ActivityType, ColorResolvable } from "discord.js";
+import { dirname, join } from "path";
+import { fileURLToPath } from "url";
+
+/** Quetza project root directory. */
+const rootDir = dirname(fileURLToPath(import.meta.url));
+/** Quetza's modules directory. */
+const modulesDir = join(rootDir, "/modules/");
+/** External binaries directory. */
+const binariesDir = join(rootDir, "/bin/");
+/** Logger files directory. */
+const loggerDir = join(rootDir, "/log/");
+
+/** Locations that might be useful in application. */
+const path = {
+    root: rootDir,
+    modules: modulesDir,
+    binaries: binariesDir,
+    log: loggerDir
+};
+
+/** Discord bot token. */
+const appToken = process.env.DISCORD_TOKEN;
+/** Discord bot user activity status */
+const appActivity = { type: ActivityType.Watching, name: "over you" };
+
+/** Bot application configuration variables. */
+const application = {
+    token: appToken,
+    activity: appActivity as ActivityOptions
+};
+
+/** Colors Quetza uses in responses. */
+const colors = {
+    default: "#ff6e9b" as ColorResolvable,
+    error: "#b94e59" as ColorResolvable,
+    warning: "#e5925f" as ColorResolvable,
+    info: "#367df6" as ColorResolvable,
+    success: "#83d18e" as ColorResolvable
+};
+
+/** Guild where testing occures. */
+const testGuild = "912401672939139142";
+
+/** Developing options. */
+const dev = {
+    guild: testGuild
+};
+
+/** AI module secrets. */
+const llama = {
+    apiUrl: process.env.LLAMA_API_URL,
+    model: process.env.LLAMA_MODEL
+};
+
+/** Exported bundled configuration object. */
+const config = {
+    application,
+    colors,
+    path,
+    dev,
+    llama
+};
+
+export default config;

config.tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "rootDir": ".",
+    "outDir": "./dist",
+
+    "composite": true
+  },
+  "include": ["config.ts"]
+}

docs/privacy-policy.md

@@ -0,0 +1,36 @@
+# Privacy Policy of Quetza
+
+This privacy policy applies to the Discord bot Quetza (hereby referred to as "Quetza")
+that was created by Vladimir Eremin (hereby referred to as "Service Provider")
+as an Open Source service.
+
+Quetza is intended for use "AS IS",
+in compliance with [Discord Privacy Policy](https://discord.com/privacy).
+
+## What information does Quetza store and how is it used?
+
+Quetza does not store any information.
+
+## Do third parties see and/or have access to information obtained by the Quetza?
+
+Since Quetza does not store any information, no data is shared with third parties.
+
+## Changes
+
+This Privacy Policy may be updated from time to time for any reason.
+The Service Provider will notify you of any changes to their Privacy Policy
+by updating this page with the new Privacy Policy.
+You are advised to consult this Privacy Policy regularly for any changes,
+as continued use is deemed approval of all changes.
+
+_This privacy policy is effective as of 2024-11-08_
+
+## Your Consent
+
+By using Quetza, you are consenting to the processing of your information
+as set forth in this Privacy Policy now and as amended by the Service Provider.
+
+## Contact Us
+
+If you have any questions regarding privacy while using Quetza, or have questions
+about the practices, please contact the Service Provider via email at [personal@ermnvldmr.com](mailto:personal@ermnvldmr.com).

eslint.config.js

@@ -0,0 +1,44 @@
+import typescriptEslint from "@typescript-eslint/eslint-plugin";
+import globals from "globals";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all
+});
+
+export default [
+  { ignores: ["**/node_modules/**/*", "dist/**/*", "tests/**/*"] },
+  ...compat.extends("eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier"),
+  {
+    plugins: {
+      "@typescript-eslint": typescriptEslint
+    },
+
+    languageOptions: {
+      globals: {
+        ...Object.fromEntries(Object.entries(globals.browser).map(([key]) => [key, "off"])),
+        ...globals.node
+      },
+
+      parser: tsParser,
+      ecmaVersion: "latest",
+      sourceType: "module",
+
+      parserOptions: {
+        warnOnUnsupportedTypeScriptVersion: false
+      }
+    },
+
+    rules: {
+      curly: ["error", "all"]
+    }
+  }
+];

modules/ai/commands/ask.ts

@@ -0,0 +1,79 @@
+/**
+ * /ask
+ *
+ * Sends a prompt to the locally deployed Llama LLM and returns the response.
+ * Maintains conversation history per user and guild.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+
+import AI from "../lib/ai.js";
+import replies from "../lib/replies.js";
+
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: AI
+): Promise<void> {
+    if (!interaction.isChatInputCommand() || !interaction.inCachedGuild()) {
+        logger.warn("Interaction rejected.", { interaction });
+        return;
+    }
+
+    const prompt = interaction.options.getString("prompt", true);
+
+    await interaction.deferReply();
+
+    try {
+        // Test Llama connection
+        const isConnected = await controller.llama.testConnection();
+        if (!isConnected) {
+            await interaction.editReply(replies.connectionError());
+            return;
+        }
+
+        // Get or create conversation
+        const conversation = controller.getConversation(interaction.guildId, interaction.user.id);
+
+        // Clear stale conversations
+        if (conversation.isStale()) {
+            conversation.clear();
+        }
+
+        // Add user message to conversation
+        conversation.addUserMessage(prompt);
+
+        // Send to Llama
+        const response = await controller.llama.chat(conversation.getHistory());
+
+        // Add assistant response to conversation
+        conversation.addAssistantMessage(response);
+
+        // Reply with the response
+        await interaction.editReply(replies.response(response));
+    } catch (error) {
+        logger.error("Error in ask command", {
+            error,
+            userId: interaction.user.id,
+            guildId: interaction.guildId
+        });
+        await interaction.editReply(replies.error());
+    }
+}
+
+const data = new SlashCommandBuilder()
+    .setName("ask")
+    .setDescription("Ask a question to the AI assistant")
+    .addStringOption((option) =>
+        option
+            .setName("prompt")
+            .setDescription("Your question or prompt")
+            .setRequired(true)
+            .setMaxLength(2000)
+    )
+    .setDMPermission(false);
+
+export { data, execute };

modules/ai/commands/askclear.ts

@@ -0,0 +1,35 @@
+/**
+ * /askclear
+ *
+ * Clears the conversation history for the current user in the current guild.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+
+import AI from "../lib/ai.js";
+import replies from "../lib/replies.js";
+
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: AI
+): Promise<void> {
+    if (!interaction.isChatInputCommand() || !interaction.inCachedGuild()) {
+        logger.warn("Interaction rejected.", { interaction });
+        return;
+    }
+
+    controller.clearConversation(interaction.guildId, interaction.user.id);
+
+    await interaction.reply(replies.historyCleared());
+}
+
+const data = new SlashCommandBuilder()
+    .setName("askclear")
+    .setDescription("Clear your conversation history with the AI assistant")
+    .setDMPermission(false);
+
+export { data, execute };

modules/ai/lib/ai.ts

@@ -0,0 +1,49 @@
+import { Collection } from "discord.js";
+
+import { Conversation } from "./conversation.js";
+import { LlamaClient } from "./llama.js";
+
+/**
+ * AI module controller.
+ *
+ * Manages conversations and Llama LLM interactions.
+ */
+export default class AI {
+    /**
+     * Llama API client.
+     */
+    public readonly llama = new LlamaClient();
+
+    /**
+     * Guild + User ID to Conversation mapping.
+     */
+    private conversations_ = new Collection<string, Conversation>();
+
+    /**
+     * Gets or creates a conversation for a user in a guild.
+     *
+     * @param guildId - Discord guild ID
+     * @param userId - Discord user ID
+     * @returns Conversation instance
+     */
+    public getConversation(guildId: string, userId: string): Conversation {
+        const key = `${guildId}:${userId}`;
+
+        if (!this.conversations_.has(key)) {
+            this.conversations_.set(key, new Conversation(guildId, userId));
+        }
+
+        return this.conversations_.get(key)!;
+    }
+
+    /**
+     * Clears conversation history for a user in a guild.
+     *
+     * @param guildId - Discord guild ID
+     * @param userId - Discord user ID
+     */
+    public clearConversation(guildId: string, userId: string): void {
+        const key = `${guildId}:${userId}`;
+        this.conversations_.delete(key);
+    }
+}

modules/ai/lib/conversation.ts

@@ -0,0 +1,77 @@
+import { LlamaMessage } from "./llama.js";
+
+/**
+ * Manages conversation history for a specific user in a guild.
+ */
+export class Conversation {
+    public readonly guildId: string;
+    public readonly userId: string;
+    public readonly messages: LlamaMessage[] = [];
+    public readonly createdAt: Date = new Date();
+    public lastActivity: Date = new Date();
+
+    private readonly maxMessages = 50; // Limit conversation history
+
+    public constructor(guildId: string, userId: string) {
+        this.guildId = guildId;
+        this.userId = userId;
+    }
+
+    /**
+     * Adds a user message to the conversation.
+     *
+     * @param content - User's message content
+     */
+    public addUserMessage(content: string): void {
+        this.messages.push({ role: "user", content });
+        this.lastActivity = new Date();
+        this.trimHistory();
+    }
+
+    /**
+     * Adds an assistant response to the conversation.
+     *
+     * @param content - Assistant's response content
+     */
+    public addAssistantMessage(content: string): void {
+        this.messages.push({ role: "assistant", content });
+        this.lastActivity = new Date();
+        this.trimHistory();
+    }
+
+    /**
+     * Gets the conversation history.
+     *
+     * @returns Array of messages
+     */
+    public getHistory(): LlamaMessage[] {
+        return [...this.messages];
+    }
+
+    /**
+     * Clears the conversation history.
+     */
+    public clear(): void {
+        this.messages.length = 0;
+        this.lastActivity = new Date();
+    }
+
+    /**
+     * Trims conversation history to stay within limits.
+     */
+    private trimHistory(): void {
+        if (this.messages.length > this.maxMessages) {
+            this.messages.splice(0, this.messages.length - this.maxMessages);
+        }
+    }
+
+    /**
+     * Checks if the conversation is stale (inactive for over 1 hour).
+     *
+     * @returns True if conversation should be considered stale
+     */
+    public isStale(): boolean {
+        const oneHour = 60 * 60 * 1000;
+        return Date.now() - this.lastActivity.getTime() > oneHour;
+    }
+}

modules/ai/lib/llama.ts

@@ -0,0 +1,66 @@
+import logger from "$lib/logger.js";
+import config from "$config.js";
+
+export interface LlamaResponse {
+    content: string;
+    done: boolean;
+}
+
+export interface LlamaMessage {
+    role: "system" | "user" | "assistant";
+    content: string;
+}
+
+/**
+ * Client for communicating with locally deployed Llama LLM.
+ */
+export class LlamaClient {
+    private readonly baseUrl = config.llama.apiUrl || "http://localhost:11434";
+    private readonly model = config.llama.model || "llama3.2";
+
+    /**
+     * Sends a chat completion request to Llama.
+     *
+     * @param messages - Array of conversation messages
+     * @returns Promise resolving to Llama response
+     */
+    public async chat(messages: LlamaMessage[]): Promise<string> {
+        try {
+            const response = await fetch(`${this.baseUrl}/api/chat`, {
+                method: "POST",
+                headers: {
+                    "Content-Type": "application/json"
+                },
+                body: JSON.stringify({
+                    model: this.model,
+                    messages,
+                    stream: false
+                })
+            });
+
+            if (!response.ok) {
+                throw new Error(`Llama API error: ${response.status} ${response.statusText}`);
+            }
+
+            const data = (await response.json()) as { message: { content: string } };
+            return data.message.content;
+        } catch (error) {
+            logger.error("Failed to communicate with Llama API", { error });
+            throw new Error("Unable to process your request. Please try again later.");
+        }
+    }
+
+    /**
+     * Tests connection to Llama API.
+     *
+     * @returns Promise resolving to true if connection is successful
+     */
+    public async testConnection(): Promise<boolean> {
+        try {
+            const response = await fetch(`${this.baseUrl}/api/tags`);
+            return response.ok;
+        } catch {
+            return false;
+        }
+    }
+}

modules/ai/lib/replies.ts

@@ -0,0 +1,42 @@
+import { BaseMessageOptions, EmbedBuilder, italic } from "discord.js";
+
+import config from "$config.js";
+
+const replies = {
+    response: (content: string): BaseMessageOptions => {
+        return { content };
+    },
+
+    error: (
+        message: string = "Sorry, I encountered an error processing your request."
+    ): BaseMessageOptions => {
+        const embed = new EmbedBuilder()
+            .setColor(config.colors.error || "#ff0000")
+            .setTitle("⚠️ Error")
+            .setDescription(italic(message));
+
+        return { embeds: [embed] };
+    },
+
+    connectionError: (): BaseMessageOptions => {
+        const embed = new EmbedBuilder()
+            .setColor(config.colors.warning || "#ffaa00")
+            .setTitle("🔌 Connection Issue")
+            .setDescription(
+                italic("Unable to connect to the LLAMA service. Please try again later.")
+            );
+
+        return { embeds: [embed] };
+    },
+
+    historyCleared: (): BaseMessageOptions => {
+        const embed = new EmbedBuilder()
+            .setColor(config.colors.success || "#00ff00")
+            .setTitle("🧹 History Cleared")
+            .setDescription(italic("Your conversation history has been cleared."));
+
+        return { embeds: [embed] };
+    }
+};
+
+export default replies;

modules/ai/module.ts

@@ -0,0 +1,17 @@
+/**
+ * AI module definition.
+ *
+ * Module to provide AI conversational capabilities using locally deployed Llama LLM.
+ * Supports slash commands and reply-based interactions with conversation persistence.
+ *
+ * @packageDocumentation
+ */
+
+import AI from "./lib/ai.js";
+
+const name = "ai";
+const description = "AI conversational module with Llama LLM integration";
+
+const controller = new AI();
+
+export { controller, description, name };

modules/ai/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "paths": {
+      "$config.js": ["../../config.js"],
+      "$lib/*": ["../../src/lib/*"],
+      "$mlib/*": ["./lib/*"]
+    },
+
+    "rootDir": ".",
+    "outDir": "../../dist/modules/ai",
+
+    "composite": true
+  },
+  "references": [{ "path": "../../src/" }]
+}

modules/core/commands/modules.ts

@@ -1,10 +1,19 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /modules
+ *
+ * Replies module listing as well as description of each.
+ *
+ * Just for the information I guess...
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
 
-async function execute(client: Client, interaction: Interaction): Promise<void> {
+async function execute(client: Client, interaction: ChatInputCommandInteraction): Promise<void> {
     if (!interaction.isChatInputCommand()) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/core/commands/ping.ts

@@ -1,13 +1,19 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /ping
+ *
+ * Replies websocket ping (ping between bot and discord) and real ping (ping to fetch + process).
+ *
+ * @remarks Probably should double their value as two ways, but nvm.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
 
-async function execute(client: Client, interaction: Interaction): Promise<void> {
+async function execute(client: Client, interaction: ChatInputCommandInteraction): Promise<void> {
     if (!interaction.isChatInputCommand()) {
-        logger.warn("Interaction rejected.", { interaction });
-
         return;
     }
 

modules/core/events/interaction-create.ts

@@ -0,0 +1,41 @@
+/**
+ * InteractionCreate
+ *
+ * Resolves creation of an interaction by users.
+ *
+ * @remark Only {@link ChatInputCommand} currently being resolved.
+ */
+
+import { Events, Interaction } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+
+async function execute(client: Client, eventee: [Interaction]): Promise<void> {
+    const [interaction] = eventee;
+
+    if (!interaction.isChatInputCommand()) {
+        logger.notice("Interaction is not a ChatInputCommand.");
+        return;
+    }
+
+    const command = client.commands.get(interaction.commandName);
+
+    if (!command) {
+        logger.notice("Interaction does not exist.", interaction);
+
+        return;
+    }
+
+    try {
+        logger.info("Interaction was created.", interaction);
+
+        await command.execute(client, interaction, command.module.controller);
+    } catch (error) {
+        logger.error("Interaction has and error occured.", error, interaction);
+    }
+}
+
+const name = Events.InteractionCreate;
+
+export { execute, name };

modules/core/events/ready.ts

@@ -0,0 +1,48 @@
+/**
+ * Ready
+ *
+ * Will execute upon emitting Client's Ready event.
+ *
+ * @remarks Will push slash commands, set activity status,
+ * and log bot's initials.
+ */
+
+import { generateDependencyReport } from "@discordjs/voice";
+import { Events } from "discord.js";
+
+import config from "$config.js";
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+
+async function execute(client: Client<true>): Promise<void> {
+    const commandData = client.commands.map((value) => value.data);
+
+    // To not reload bot's global slash commands at every dev build.
+    if (process.env.NODE_ENV === "development") {
+        logger.info(
+            "Development mode: Commands will be pushed to the _test guild_!",
+            client.generateApplicationStatus()
+        );
+        logger.info("Dependency report by '@discordjs/voice'.", {
+            report: generateDependencyReport()
+        });
+
+        const guild = await client.guilds.fetch(config.dev.guild);
+        guild.commands.set(commandData);
+    }
+
+    if (process.env.NODE_ENV === "production") {
+        logger.info(
+            "Production mode: Commands will be pushed to the _application_!",
+            client.generateApplicationStatus()
+        );
+
+        await client.application.commands.set(commandData);
+    }
+
+    client.user.setActivity(config.application.activity);
+}
+
+const name = Events.ClientReady;
+
+export { execute, name };

modules/core/lib/replies.ts

@@ -1,20 +1,18 @@
 import { BaseMessageOptions, Collection, EmbedBuilder, italic } from "discord.js";
 
-import config from "../../../config.js";
+import config from "$config.js";
-import { ModuleMetadata } from "../../../lib/types.js";
+import { Module } from "$lib/types.js";
 
 const replies = {
-    modules: (modules: Collection<string, ModuleMetadata>): BaseMessageOptions => {
+    modules: (modules: Collection<string, Module>): BaseMessageOptions => {
         const embed = new EmbedBuilder()
             .setColor(config.colors.default)
-            .setTitle("Applied modules")
+            .setTitle("Avaliable modules")
             .addFields(
-                modules.map((value) => {
+                modules.map((value) => ({
-                    return {
+                    name: value.name,
-                        name: value.name + "@" + value.tag,
                     value: italic(value.description ?? "")
-                    };
+                }))
-                })
             );
 
         return { embeds: [embed] };

modules/core/module.ts

@@ -0,0 +1,20 @@
+/**
+ * Core Quetza Module definition.
+ *
+ * This module provides default capabilities.
+ * - Comands are being resolved here at InteractionCreated event.
+ * - Aplication status being generated as well as commands pushed to Discord at Ready event.
+ *
+ *  Also this module provides basic commands:
+ *  - ping
+ *  - modules
+ *
+ *  There a lot of speaking because it's as important as $lib.
+ *
+ *  @packageDocumentation
+ */
+
+const name = "core";
+const description = "Quetza's core functionality";
+
+export { description, name };

modules/core/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "paths": {
+      "$config.js": ["../../config.js"],
+      "$lib/*": ["../../src/lib/*"],
+      "$mlib/*": ["./lib/*"]
+    },
+
+    "rootDir": ".",
+    "outDir": "../../dist/modules/core",
+
+    "composite": true
+  },
+  "references": [{ "path": "../../src/" }]
+}

modules/music/commands/clear.ts

@@ -1,11 +1,25 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /clear
+ *
+ * Clears Player queue entirely.
+ *
+ * Possible replies:
+ * - Success with amount of tracks deleted.
+ * - Player does not exists.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction): Promise<void> {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/connect.ts

@@ -1,11 +1,29 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /connect
+ *
+ * Connects bot to the voice channel.
+ *
+ * Just like play but without query.
+ *
+ * Possible replies:
+ * - Success with Voice Channel bot connected to.
+ * - Requester does not connected to the Voice Channel.
+ *
+ * @deprecated Does not make sense.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction): Promise<void> {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/filter.ts

@@ -1,12 +1,30 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /filter <filter id>
+ *
+ * Toggles filter that will be applied to the playback.
+ * Such as nightcore, etc.
+ *
+ * If no filter id was provided clears them all.
+ *
+ * Possible replies:
+ * - Success with chosen filter status or filters being cleared.
+ * - Player does not exists.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import Filter from "../lib/filter.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 
@@ -35,11 +53,7 @@ const data = new SlashCommandBuilder()
         option
             .setName("filter")
             .setDescription("Filter to apply.")
-            .setChoices(
+            .setChoices(...Filter.filterChoices())
-                ...Object.keys(Filter.filters).map((key) => {
-                    return { name: key, value: key };
-                })
-            )
     )
     .setDMPermission(false);
 

modules/music/commands/info.ts

@@ -1,11 +1,32 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /info
+ *
+ * Replies with very stylish player info card.
+ *
+ * Playback status bar with title, thumbnail and duration.
+ * Queue length and duration.
+ * Applied filters.
+ * Current loop option.
+ * Player lifetime.
+ *
+ * Possible replies:
+ * - Success with info card.
+ * - Player does not exists.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/insert.ts

@@ -1,19 +1,34 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /insert (query) (position)
+ *
+ * Inserts specified track/album to the position specified.
+ *
+ * Possible replies:
+ * - Success with first added track info.
+ * - Player does not exists.
+ * - No track was added.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 
         return;
     }
 
-    const pos = interaction.options.getNumber("position", true);
     const query = interaction.options.getString("query", true);
+    const pos = interaction.options.getInteger("position", true);
 
     await interaction.deferReply();
 

modules/music/commands/jump.ts

@@ -1,11 +1,29 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /jump (query)
+ *
+ * Jumps to the specified Track from the queue.
+ * If number was provided - resolves as position at where queue position should be set.
+ * If string was provided - jumps to the most similar if terms of {@link ../lib/misc#LargestCommonSequence} Track title.
+ *
+ * Possible replies:
+ * - Success with selected track data.
+ * - Such track does not exists, though cannot be jumped to.
+ * - Player does not exists.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/loop.ts

@@ -1,12 +1,29 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /loop (option)
+ *
+ * Changes loop option.
+ *
+ * @remarks
+ * @see {@link ../lib/types} for LoopOption definition.
+ *
+ * Possible replies:
+ * - Success with new loop option.
+ * - Player does not exists.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
 import { LoopOption } from "../lib/types.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/next.ts

@@ -1,11 +1,25 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /next
+ *
+ * Skips current track.
+ *
+ * Possible replies:
+ * - Success with confirmation of skip. (even there is nothing to skip)
+ * - Player does not exists.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/pause.ts

@@ -1,11 +1,25 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /pause
+ *
+ * Toggles playback pause.
+ *
+ * Possible replies:
+ * - Success with setted state (paused, resumed).
+ * - Player does not exists.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/play.ts

@@ -1,11 +1,27 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /play <query>
+ *
+ * Starts up the Player.
+ * If query provided searches corresponding track/album and adds it to the queue end.
+ *
+ * Possible replies:
+ * - Success with first added track info.
+ * - Denies if requester is not connected to the Voice Channel.
+ * - No track was added, but player was set.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 
@@ -43,7 +59,7 @@ async function execute(client: Client, interaction: Interaction) {
     }
 
     if (!player.resource) {
-        player.play();
+        await player.play();
     }
 }
 

modules/music/commands/queue.ts

@@ -1,19 +1,41 @@
+/**
+ * /queue
+ *
+ * Replies interactive queue with current playing track at the top and 10 tracks from queue on each page.
+ * Interactiveness provided by buttons:
+ * - First page.
+ * - Previous page.
+ * - Next page.
+ * - Last page.
+ *
+ * Buttons live up to 30 seconds.
+ *
+ * Possible replies:
+ * - Success with interactive queue.
+ * - Player does not exists.
+ */
+
 import {
     ActionRowBuilder,
     ButtonBuilder,
     ButtonInteraction,
     ButtonStyle,
-    Interaction,
+    ChatInputCommandInteraction,
     MessageActionRowComponentBuilder,
     SlashCommandBuilder
 } from "discord.js";
 
-import Client from "../../../lib/client.js";
+import Client from "$lib/client.js";
-import logger from "../../../lib/logger.js";
+import logger from "$lib/logger.js";
-import replies from "../lib/replies.js";
+import Music from "$mlib/music.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+import replies from "../lib/replies.js";
+
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/remove.ts

@@ -1,11 +1,28 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /remove (query)
+ *
+ * Removes Track from the queue.
+ * If number was provided - resolves as position at where deletion should occurr.
+ * If string was provided - removes most similar if terms of {@link ../lib/misc#LargestCommonSequence} Track title.
+ *
+ * Possible replies:
+ * - Success with removed track data.
+ * - Such track does not exists, though cannot be removed.
+ * - Player does not exists.
+ */
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/reshuffle.ts

@@ -1,11 +1,26 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /reshuffle
+ * Shuffles the queue, so real order is changed.
+ * DO NOT Confuse it with AUTO LoopOption.
+ *
+ * Possible replies:
+ * - Success with queue being reshuffled.
+ * - Player does not exists.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/seek.ts

@@ -1,11 +1,31 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /seek <hrs> <mins> <secs>
+ *
+ * Changes current Track playback duration to value given.
+ *
+ * @remarks
+ * If not stated - default value for all imputs is 0.
+ * Input resolution is defined by FFmpeg.
+ *
+ * Possible replies:
+ * - Success with previous and new playback duration.
+ * - Player does not exists.
+ * - No resource is currently playing.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/stop.ts

@@ -1,11 +1,27 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /stop
+ *
+ * Destroys player of the Guild where it was emitted.
+ * Also disconnects user from Voice Channel Quetza was in.
+ *
+ * Possible replies:
+ * - Success with player being destroyed.
+ * - Player does not exists.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 

modules/music/commands/volume.ts

@@ -1,18 +1,34 @@
-import { Interaction, SlashCommandBuilder } from "discord.js";
+/**
+ * /volume (amount)
+ *
+ * Sets volume of {@link ../lib/player#Player | Player} in percent scale,
+ * clamping it in range defined in Player.
+ *
+ * Possible replies:
+ * - Success with new volume value.
+ * - Player does not exists.
+ */
+
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
+
+import Client from "$lib/client.js";
+import logger from "$lib/logger.js";
+import Music from "$mlib/music.js";
 
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
 import replies from "../lib/replies.js";
-import { controller } from "../module.js";
 
-async function execute(client: Client, interaction: Interaction) {
+async function execute(
+    _: Client,
+    interaction: ChatInputCommandInteraction,
+    controller: Music
+): Promise<void> {
     if (!interaction.isChatInputCommand() || !interaction.inCachedGuild() || !interaction.channel) {
         logger.warn("Interaction rejected.", { interaction });
 
         return;
     }
 
-    const volume = interaction.options.getInteger("volume") ?? 100;
+    const volume = interaction.options.getInteger("volume", true);
 
     const player = controller.get(interaction.guild, interaction.channel);
 

modules/music/events/voice-state-update.ts

@@ -0,0 +1,64 @@
+/**
+ * voiceStateUpdate
+ *
+ * Monitors voice states of attended guilds.
+ * If Quetza happens to be alone in the Voice Channel - destroys guilds player and disconnects.
+ */
+
+import { BaseGuildVoiceChannel, User, VoiceState } from "discord.js";
+
+import Client from "$lib/client.js";
+import Music from "$mlib/music.js";
+
+import { asleep } from "../lib/misc.js";
+import replies from "../lib/replies.js";
+
+/** Amount of time Quetza can be alone in voice channel. */
+const TIME_TILL_DISCONNECT = 30_000;
+
+/**
+ * Deduct {@link BaseGuildVoiceChannel} user is a member of.
+ *
+ * @returns BaseGuildVoiceChannel user is a member of, null if not a member of any.
+ *
+ * @param user - User that might be in one of a channels.
+ * @param channels - List of channels that might have user as it member.
+ *
+ * @internal
+ */
+function resolveVoiceChannel(
+    user: User,
+    ...channels: (BaseGuildVoiceChannel | null)[]
+): BaseGuildVoiceChannel | null {
+    return (
+        channels.find((channel) => channel?.members.some((member) => member.user === user)) ?? null
+    );
+}
+
+async function execute(
+    client: Client<true>,
+    eventee: [VoiceState, VoiceState],
+    controller: Music
+): Promise<void> {
+    const [oldState, newState] = eventee;
+
+    const player = controller.get(oldState.guild);
+
+    const channel = resolveVoiceChannel(client.user, oldState.channel, newState.channel);
+
+    if (!player || !channel) {
+        return;
+    }
+
+    if (channel.members.size === 1) {
+        await asleep(TIME_TILL_DISCONNECT);
+        if (channel.members.size === 1 && channel.members.first()?.user === client.user) {
+            await player.channel.send(replies.alone());
+            player.destroy();
+        }
+    }
+}
+
+const name = "voiceStateUpdate";
+
+export { execute, name };

modules/music/lib/MusicError.ts

@@ -0,0 +1,13 @@
+/**
+ * @see ../../../src/lib/error.ts
+ */
+
+import QuetzaError from "$lib/error.js";
+
+export default class MusicError extends QuetzaError {
+    public static readonly PREFIX = "MZ";
+
+    constructor(msg: string, code: number) {
+        super(msg, code, MusicError.PREFIX);
+    }
+}

modules/music/lib/fetch/extractors.ts

@@ -0,0 +1,75 @@
+import { DlpDump, dlpExtractorKey, DlpInfo } from "$mlib/types.js";
+
+/**
+ * Avaliable extractors.
+ *
+ * @internal
+ */
+export const dlpExtractorsValues = ["Youtube", "Soundcloud"] as const;
+
+/**
+ * Defines structure for an extractor that will be called by dlpInfo.
+ *
+ * For example:
+ *
+ * @see the {@link youtubeExtractor | youtubeExtractor(...) } function
+ *
+ * @internal
+ */
+type dlpExtractor = (arg0: DlpDump, arg1: (arg0: string) => Promise<DlpInfo>) => Promise<DlpInfo>;
+
+/**
+ * Resolves data that was extracted by dlp (depending on extractor_key).
+ *
+ * @returns DlpInfo generated from dump provided
+ *
+ * @param dump - Parsed dlp output
+ * @param dlpInfo - Function to call if any other information needed
+ * (will recurcively call next extractor after its run)
+ *
+ * @public
+ */
+const youtubeExtractor: dlpExtractor = async (dump, dlpInfo) => {
+    if (dump.id && dump.title && dump.duration) {
+        const result = {
+            url: `https://www.youtube.com/watch?v=${dump.id}`,
+            title: dump.title,
+            thumbnail: `https://img.youtube.com/vi/${dump.id}/default.jpg`,
+            duration: dump.duration
+        };
+
+        return [result];
+    }
+
+    return await dlpInfo(dump.original_url);
+};
+
+/**
+ * {@inheritdoc youtubeExtractor}
+ */
+const soundcloudExtractor: dlpExtractor = async (dump, dlpInfo) => {
+    if (dump.title && dump.duration && dump.thumbnail) {
+        const result = {
+            url: dump.webpage_url ?? dump.original_url,
+            title: dump.title,
+            thumbnail: dump.thumbnail,
+            duration: dump.duration
+        };
+
+        return [result];
+    }
+
+    return await dlpInfo(dump.original_url);
+};
+
+/**
+ * DlpDump extractor_key values mapped to corresponding extractor.
+ *
+ * @public
+ */
+const extractors: Record<dlpExtractorKey, dlpExtractor> = {
+    Youtube: youtubeExtractor,
+    Soundcloud: soundcloudExtractor
+};
+
+export default extractors;

modules/music/lib/fetch/fetch.ts

@@ -0,0 +1,199 @@
+import { execFile } from "child_process";
+import path from "path";
+import prismMedia from "prism-media";
+import { Readable } from "stream";
+import { promisify } from "util";
+
+import config from "$config.js";
+import logger from "$lib/logger.js";
+import MusicError from "$mlib/MusicError.js";
+
+import { DlpDump, DlpInfo, dlpStreamOptions } from "../types.js";
+import extractors from "./extractors.js";
+
+const { FFmpeg } = prismMedia;
+const execFileAsync = promisify(execFile);
+
+/**
+ * Maximum length of dlp search stack.
+ *
+ * @internal
+ */
+const DLPINFO_DEPTH = 3;
+
+/**
+ * Path to the Dlp binary.
+ *
+ * @internal
+ */
+const DLP_BINARY = path.join(config.path.binaries, "/yt-dlp");
+
+/**
+ * Base arguments for Ffmpeg transcoder.
+ *
+ * @internal
+ */
+const FFMPEG_BASE_ARGS = [
+    "-analyzeduration",
+    "0",
+    "-loglevel",
+    "0",
+    "-acodec",
+    "libopus",
+    "-f",
+    "opus",
+    "-ar",
+    "48000",
+    "-ac",
+    "2"
+];
+
+/**
+ * Predicate to check whether is string a valid URL.
+ *
+ * @returns true if given string is a valid URL, false otherwise
+ *
+ * @param str - Any string
+ *
+ * @internal
+ */
+function isURL(str: string): boolean {
+    return /^https?:\/\/(www\.)?[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_+.~#?&//=]*)$/.test(
+        str
+    );
+}
+
+/**
+ * Sub-function of dlpInfo.
+ *
+ * @tutorial Shall be used only inside original function
+ *
+ * @returns Info of the media that related to query, and ones that cannot be found
+ *
+ * @param query - Dlp search request or compatible URL
+ * @param depth - Recursion depth (force stops at 0)
+ *
+ * @internal
+ */
+async function dlpInfoRecursive(query: string, depth = DLPINFO_DEPTH): Promise<DlpInfo> {
+    const error = (message: string, reason: number, ...meta: unknown[]): DlpInfo => {
+        logger.warn(message, { reason, query, ...meta });
+        throw new MusicError(message, reason);
+    };
+
+    if (!depth) {
+        return error("Dlp: recursion depth reached", 1010);
+    }
+
+    const subprocess = await execFileAsync(DLP_BINARY, [
+        query,
+        "-O",
+        "%(.{id,original_url,title,uploader,duration,extractor_key,thumbnail})j",
+        "-s",
+        "--flat-playlist"
+    ]);
+
+    if (!subprocess.stdout) {
+        return error("Dlp: no stdout", 1011);
+    }
+
+    if (subprocess.stderr) {
+        return error("Dlp: stderr", 1012, {
+            stderr: subprocess.stderr
+        });
+    }
+
+    const dumps: DlpDump[] = subprocess.stdout
+        .trim()
+        .split("\n")
+        .map((out) => JSON.parse(out));
+
+    const resolveDump = async (dump: DlpDump): Promise<DlpInfo> => {
+        if (!Object.hasOwn(extractors, dump.extractor_key)) {
+            error("Dlp: illegal extractor", 1013);
+        }
+
+        return extractors[dump.extractor_key](dump, (subquery: string) =>
+            dlpInfoRecursive(subquery, depth - 1)
+        );
+    };
+
+    const result = await Promise.all(dumps.map(resolveDump));
+
+    return result.flat();
+}
+
+/**
+ * Leverages dlp to fetch metadata of media accessible by the extractors.
+ *
+ * @returns Metadata to a youtube video that related to query by title or URL of findings
+ *
+ * @param query - Dlp search request or compatible URL
+ *
+ * @public
+ */
+export async function dlpInfo(query: string): Promise<DlpInfo> {
+    return await dlpInfoRecursive(isURL(query) ? query : "ytsearch1:" + query);
+}
+
+/**
+ * Creates Opus stream by downloading media via dlp.
+ *
+ * @returns Readable stream of requested media
+ *
+ * @param url - Dlp compatible URL to the requested resource
+ * @param options - Transcoders and dlp options
+ *
+ * @public
+ */
+export function dlpStream(url: string, options?: dlpStreamOptions): Promise<Readable> {
+    let ffmpegArgs = FFMPEG_BASE_ARGS;
+
+    if (options?.seek) {
+        ffmpegArgs.unshift("-ss", options.seek.toString());
+    }
+
+    if (options?.ffmpeg) {
+        ffmpegArgs = ffmpegArgs.concat(options.ffmpeg);
+    }
+
+    return new Promise<Readable>((resolve, reject) => {
+        const subprocess = execFile(
+            DLP_BINARY,
+            [
+                url,
+                "-o",
+                "-",
+                "--verbose",
+                "-f",
+                "bestaudio[ext=webm][acodec=opus][asr=48000]/bestaudio",
+                "--rm-cache-dir",
+                "-r",
+                "1M"
+            ],
+            { encoding: null, maxBuffer: 25000000 }
+        );
+
+        if (!subprocess.stdout || !subprocess.stderr) {
+            throw new Error("No stdout");
+        }
+
+        const ffmpegTranscoder = new FFmpeg({ args: ffmpegArgs });
+
+        const stream = subprocess.stdout.pipe(ffmpegTranscoder);
+
+        const onError = (err: Error) => {
+            if (!subprocess.killed) {
+                subprocess.kill();
+            }
+            reject(err);
+            stream.resume();
+        };
+
+        subprocess
+            .once("spawn", () => {
+                resolve(stream);
+            })
+            .on("error", onError);
+    });
+}

modules/music/lib/filter.ts

@@ -0,0 +1,125 @@
+/**
+ * Filter entry.
+ *
+ * @internal
+ */
+type filterValue = {
+    /** Public well formatted name of the filter. */
+    name: string;
+
+    /** FFmpeg argument of this filter. */
+    value: string;
+};
+
+/**
+ * Record mapping id of filter with its {@link filterValue}.
+ *
+ * @internal
+ */
+const FILTERS: Record<string, filterValue> = {
+    bassboost1x: { name: "Bassboost 1x", value: "bass=g=15:f=110:w=0.3" },
+    bassboost2x: { name: "Bassboost 2x", value: "bass=g=30:f=110:w=0.3" },
+    daycore: { name: "Daycore", value: "aresample=48000,asetrate=48000*0.75" },
+    nightcore: { name: "Nightcore", value: "aresample=48000,asetrate=48000*1.25" },
+    treble: {
+        name: "Treble Boost",
+        value: "firequalizer=gain_entry='entry(2500,3);entry(6300,6);entry(16000,10)'"
+    }
+} as const;
+
+/**
+ * Type build of {@link FILTERS} keys.
+ *
+ * @internal
+ */
+type filterPreset = keyof typeof FILTERS;
+
+/**
+ * {@link ./player#Player | Player's } filters options.
+ *
+ * Resolves FFMpeg transcoder arguments that tweak playback stream.
+ *
+ * @public
+ */
+export default class Filter {
+    /**
+     * Filter list
+     */
+    public static readonly FILTERS = FILTERS;
+
+    /**
+     * Active filters. Mock of {@link FILTERS} object.
+     */
+    private switches_ = new Map<filterPreset, filterValue>();
+
+    /**
+     * Returns filters as Discord API Choices compatible array.
+     *
+     * @returns {@link Filter#FILTERS} as { name: FILTERS[key].name, value: key }.
+     */
+    public static filterChoices(): { name: string; value: string }[] {
+        return Object.entries(Filter.FILTERS).map(([key, value]) => ({
+            name: value.name,
+            value: key
+        }));
+    }
+
+    /**
+     * Converts active {@link filterValue | filterValues} to array.
+     *
+     * @returns Array of active filter values.
+     */
+    public toggled(): filterValue[] {
+        return [...this.switches_.values()];
+    }
+
+    /**
+     * Toggles filter specified. Clears them all if no arguments provided.
+     *
+     * @returns True if filter was toggled, False otherwise.
+     *
+     * @param query - filter id to toggle. Undefined to clear all.
+     */
+    public toggle(query?: filterPreset): boolean {
+        if (!query) {
+            this.switches_.clear();
+            return false;
+        }
+
+        if (!this.switches_.delete(query)) {
+            this.switches_.set(query, FILTERS[query]);
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Calculates of active filter map.
+     *
+     * @returns Size of active filter map.
+     */
+    public size(): number {
+        return this.switches_.size;
+    }
+
+    /**
+     * Checks if there are any active filter.
+     *
+     * @returns size === 0 ? True : False.
+     */
+    public empty(): boolean {
+        return this.size() === 0;
+    }
+
+    /**
+     * Converts active filters to FFmpeg compatible argument.
+     *
+     * @returns FFmpeg compatible argument representing active filters.
+     */
+    public toString(): string {
+        return this.toggled()
+            .map((value) => value.value)
+            .join(",");
+    }
+}

modules/music/lib/misc.ts

@@ -2,11 +2,29 @@ import { AudioResource } from "@discordjs/voice";
 
 import { LoopOption, Track } from "./types.js";
 
+/**
+ * Length of playback status bar in emoji symbols.
+ *
+ * @intenal
+ */
 const STATUSBAR_LENGTH = 15;
 
+/**
+ * Generates pretty playback status bar out of {@link AudioResource}.
+ *
+ * @remarks Takes duration and current playback duration to 'draw' bar.
+ *
+ * @returns String representing generated status bar.
+ *
+ * @param resource - AudioResource with {@link Track} metadata, so duration and playback duration is available.
+ *
+ * @privateRemarks I don't know why resource can be undefined - I forgor.
+ *
+ * @public
+ */
 export function statusBarGenerator(resource?: AudioResource<Track>): string {
     const duration = resource?.metadata.duration || 1;
-    const playback = Math.min(resource?.playbackDuration || 0 / 1000, duration);
+    const playback = Math.min((resource?.playbackDuration || 0) / 1000, duration);
 
     const filled = Array<string>(Math.floor((STATUSBAR_LENGTH * playback) / duration)).fill("🔹");
 
@@ -15,6 +33,20 @@ export function statusBarGenerator(resource?: AudioResource<Track>): string {
     return `[${filled.join("")}${empty.join("")}] ${toISOTime(playback)}/${toISOTime(duration)}`;
 }
 
+/**
+ * Converts seconds to ISO time string.
+ *
+ * @returns String representing given seconds in ISO format.
+ *
+ * @param amount - Seconds to convert.
+ *
+ * @example
+ * ```
+ * toISOTime(1337228); // "371:27:08"
+ * ```
+ *
+ * @public
+ */
 export function toISOTime(amount: number): string {
     const h = Math.floor(amount / 3600);
     const m = Math.floor((amount % 3600) / 60);
@@ -27,19 +59,60 @@ export function toISOTime(amount: number): string {
     return hDisplay + mDisplay + sDisplay;
 }
 
+/**
+ * Asynchronous timeout.
+ *
+ * @returns Promise that will be settled after timeout pass.
+ *
+ * @param amount - Milliseconds to wait before settle.
+ *
+ * @public
+ */
 export async function asleep(amount: number): Promise<unknown> {
     return new Promise((r) => setTimeout(r, amount));
 }
 
+/**
+ * Converts volume value to emoji representation.
+ *
+ * @remarks In span of 0 ... 100 - emoji from muted to loud.
+ *
+ * @returns String with single emoji representing specified volume.
+ *
+ * @param amount - volume to convert.
+ *
+ * @public
+ */
 export function volumeMoji(amount: number): string {
     return amount > 100 ? "🔊" : amount > 50 ? "🔉" : amount > 0 ? "🔈" : "🔇";
 }
 
+/**
+ * Converts {@link LoopOption} to emoji representation..
+ *
+ * @returns String with single emoji representing specified loop option.
+ *
+ * @param loop - Loop option that will be converted.
+ *
+ * @public
+ */
 export function loopMoji(loop: LoopOption): string {
     return loop === "AUTO" ? "🔀" : loop === "LOOP" ? "🔁" : loop === "NONE" ? "⤵️" : "🔂";
 }
 
-export function largestCommonSequence(s1: string, s2: string) {
+/**
+ * Finds larges common sequence (LCS) of characters withing provided strings.
+ *
+ * @remarks Used to fuzzy search query title of Track.
+ *
+ * @returns Length of the LCS found.
+ *
+ * @param s1 - First string.
+ * @param s2 - Second string.
+ *
+ * @public
+ */
+export function largestCommonSequence(s1: string, s2: string): number {
     s1 = s1.toLowerCase().slice(0, 100);
     s2 = s2.toLowerCase().slice(0, 100);
 

modules/music/lib/music.ts

@@ -0,0 +1,67 @@
+import { Collection, Guild, GuildTextBasedChannel } from "discord.js";
+
+import logger from "$lib/logger.js";
+
+import Player from "./player.js";
+
+/**
+ * Module's controller.
+ *
+ * Binds guilds to player.
+ * Creates and destroys them.
+ */
+export default class Music {
+    /**
+     * GuildId to {@link Player} mapping.
+     */
+    private players_ = new Collection<string, Player>();
+
+    /**
+     * Retrieves {@link Player} by {@link Guild}.
+     *
+     * @returns Player if such mapping exists or undefined otherwise.
+     *
+     * @param guild - Discord guild that might has a Player binded.
+     * @param channel - Text channel that should replace Player's one.
+     */
+    public get(guild: Guild, channel?: GuildTextBasedChannel): Player | undefined {
+        const player = this.players_.get(guild.id);
+
+        if (player) {
+            if (channel) {
+                player.channel = channel;
+            }
+
+            return player;
+        }
+    }
+
+    /**
+     * Creates {@link Player} and maps it to GuildId.
+     *
+     * @returns Newly created Player.
+     *
+     * @param guild - {@link Guild} that created Player will be binded to.
+     * @param channel - Text channel that used by Player constructor.
+     */
+    public set(guild: Guild, channel: GuildTextBasedChannel): Player {
+        const player = new Player(guild, this, channel);
+
+        this.players_.set(guild.id, player);
+
+        logger.info("Player was created.", { player });
+
+        return player;
+    }
+
+    /**
+     * Deleted {@link Player} and its mapping by GuildId.
+     *
+     * @param guildId - Id of {@link Guild} that must be removed from mapping.
+     */
+    public delete(guildId: string): void {
+        logger.info("Player was deleted.", { guildId });
+
+        this.players_.delete(guildId);
+    }
+}

modules/music/lib/player.ts

@@ -9,9 +9,10 @@ import {
     VoiceConnection
 } from "@discordjs/voice";
 import { Guild, GuildTextBasedChannel, Message, User, VoiceBasedChannel } from "discord.js";
-import ytdl from "discord-ytdl-core";
 
-import { fetchInfo } from "./fetch.js";
+import { clamp } from "$lib/misc.js";
+
+import { dlpInfo, dlpStream } from "./fetch/fetch.js";
 import Filter from "./filter.js";
 import { largestCommonSequence } from "./misc.js";
 import Music from "./music.js";
@@ -19,10 +20,33 @@ import Queue from "./queue.js";
 import replies from "./replies.js";
 import { Track } from "./types.js";
 
+/**
+ * Defines guild music player connected to a voice channel by wrapping AudioPlayer, Queue, VoiceConnection, etc.
+ *
+ * @public
+ */
 export default class Player {
-    private music: Music;
+    /**
-    private guild: Guild;
+     * Volume limiter clamp.
+     */
+    public static readonly VOLUME_CLAMP = clamp(0, 150);
 
+    /**
+     * Module controller orchistrate guild-player mapping.
+     */
+    private music_: Music;
+
+    /**
+     * {@link Player} owner guild.
+     *
+     * @remarks No different {@link Player} instances can have same {@link Guild}.
+     */
+    private guild_: Guild;
+
+    /**
+     * {@link Guild | Guild's} text based channel for player notifications,
+     * such as Current Playing Track.
+     */
     private channel_: GuildTextBasedChannel;
     public get channel(): GuildTextBasedChannel {
         return this.channel_;
@@ -31,44 +55,82 @@ export default class Player {
         this.channel_ = x;
     }
 
+    /**
+     * Previous notification message.
+     */
     private message_?: Message;
 
+    /**
+     * A connection to the voice channel of a {@link Guild}.
+     *
+     * @readonly
+     */
     private connection_?: VoiceConnection;
     public get connection(): VoiceConnection | undefined {
         return this.connection_;
     }
 
+    /**
+     * Player for {@link AudioResource} that is subscribed to the most recent {@link VoiceConnection}.
+     *
+     * @readonly
+     */
     private player_: AudioPlayer;
     public get player(): AudioPlayer {
         return this.player_;
     }
 
+    /**
+     * Represents an Audio Resource that can be played by {@link AudioPlayer}.
+     *
+     * @readonly
+     */
     private resource_: AudioResource<Track> | undefined;
     public get resource(): AudioResource<Track> | undefined {
         return this.resource_;
     }
 
+    /**
+     * Inline volume for an {@link AudioResource}.
+     * Must be clamped by {@link VOLUME_CLAMP}.
+     */
     private volume_ = 100;
     public get volume(): number {
         return this.volume_;
     }
     public set volume(x: number) {
-        this.volume_ = Math.max(0, Math.min(150, x));
+        this.volume_ = Player.VOLUME_CLAMP(x);
 
-        if (this.resource_ && this.resource_.volume) {
+        if (this.resource_?.volume) {
             this.resource_.volume.setVolumeLogarithmic(this.volume_ / 100);
         }
     }
 
+    /**
+     * Queue manager of the {@link Player}.
+     */
     public readonly queue = new Queue();
 
+    /**
+     * Filter manager of the {@link Player}.
+     */
     public readonly filter = new Filter();
 
+    /**
+     * Timestamp when {@link Player} was created.
+     */
     public readonly createdAt: Date = new Date();
 
+    /**
+     * Player constructor.
+     *
+     * @param guild - {@link Guild} for which player will be created for
+     * @param music - Module controller for managing player own existence
+     * @param channel - Initial text based channed for player notifications
+     */
     public constructor(guild: Guild, music: Music, channel: GuildTextBasedChannel) {
-        this.music = music;
+        this.music_ = music;
-        this.guild = guild;
+        this.guild_ = guild;
         this.channel_ = channel;
 
         this.player_ = createAudioPlayer();
@@ -76,16 +138,21 @@ export default class Player {
         this.player_.on(AudioPlayerStatus.Idle, async () => this.resourceEndResolvable());
     }
 
-    private resourceGenerator(track: Track, seek?: number) {
+    /**
-        const stream = ytdl(track.url, {
+     * Creates {@link AudioResource | an Audio Resource} for {@link an AudioPlayer}.
-            opusEncoded: true,
+     *
-            filter: "audioonly",
+     * @returns Configured audio resource ready to be played
-            highWaterMark: 1 << 25,
+     *
+     * @param track - Metadata to generate resource from and embed into it
+     * @param seek - Amount of seconds to start playback from
+     */
+    private async resourceGenerator(track: Track, seek?: number): Promise<AudioResource<Track>> {
+        const probe = await dlpStream(track.url, {
             seek: seek ? seek / 1000 : undefined,
-            encoderArgs: !this.filter.empty() ? ["-af", this.filter.toString()] : undefined
+            ffmpeg: !this.filter.empty() ? ["-af", this.filter.toString()] : undefined
         });
 
-        this.resource_ = createAudioResource(stream, {
+        this.resource_ = createAudioResource(probe, {
             inlineVolume: true,
             metadata: track
         });
@@ -101,6 +168,13 @@ export default class Player {
         return this.resource_;
     }
 
+    /**
+     * Resolves player behavior after {@link AudioResource} ends.
+     *
+     * @remarks Force destroys ended resource,
+     * and either plays next one or stops,
+     * depending on {@link Queue#next | Queue.next() method}
+     */
     private resourceEndResolvable(): void {
         if (this.resource_) {
             this.resource_.encoder?.destroy();
@@ -114,6 +188,12 @@ export default class Player {
         }
     }
 
+    /**
+     * Resolves notification emittion.
+     *
+     * @remarks Tries to delete previous notification message,
+     * and send next one
+     */
     private async messageResolvable(track: Track) {
         if (this.message_?.deletable) {
             await this.message_.delete().catch();
@@ -122,32 +202,47 @@ export default class Player {
         this.message_ = await this.channel_.send(replies.nowPlaying(track));
     }
 
+    /**
+     * Fetches {@link DlpInfo} and converts it to {@link Track | Track metadata}.
+     *
+     * @returns Promise to Track list or undefined, if found nothing.
+     *
+     * @param query - String that Dlp will try to resolve
+     * @param requester - {@link User} that requested Tracks returned to complete convertion
+     */
     private async search(query: string, requester: User): Promise<Track[] | undefined> {
-        const info = await fetchInfo(query);
+        const info = await dlpInfo(query);
-
-        if (info.length === 0) {
-            return undefined;
-        }
 
         return info.map((value) => {
             return { ...value, requester: requester };
         });
     }
 
-    public play(seek?: number): void {
+    /**
+     * Plays current {@link Queue} track from position specified.
+     *
+     * @param seek - Amount of seconds to start playback from
+     */
+    public async play(seek?: number): Promise<void> {
         const track = this.queue.current();
 
         if (!this.connection_ || !track) {
             return;
         }
 
-        this.player_.play(this.resourceGenerator(track, seek));
+        this.player_.play(await this.resourceGenerator(track, seek));
 
         this.connection_.subscribe(this.player_);
 
-        this.messageResolvable(track);
+        await this.messageResolvable(track);
     }
 
+    /**
+     * Creates connection to guild's voice based channel,
+     * previously destroying existing connection.
+     *
+     * @param channel - {@link VoiceBasedChannel} to connect to
+     */
     public connect(channel: VoiceBasedChannel): void {
         if (
             this.connection_?.joinConfig.channelId === channel.id &&
@@ -169,6 +264,17 @@ export default class Player {
         this.connection_.subscribe(this.player_);
     }
 
+    /**
+     * Adds {@link Track | Track(s)} found by {@link search | the search method} to the {@link queue}.
+     *
+     * @returns Track metadata if found, undefined otherwise
+     *
+     * @param query - String that will be passed to the search method
+     * @param requester - {@link User} that requested the query
+     * @param index - Position to insert track to
+     * Value < 0 resolves to 0
+     * Value >= (queue size) resolves to (queue end)
+     */
     public async add(query: string, requester: User, index?: number): Promise<Track | undefined> {
         const tracks = await this.search(query, requester);
 
@@ -181,6 +287,16 @@ export default class Player {
         return tracks[0];
     }
 
+    /**
+     * Jumps across {@link queue} to the position determined by the query.
+     *
+     * @remarks If string passed, then position will be determined by
+     * the largest common sequence across all the {@link queue} titles.
+     *
+     * @return Position to which jump was perfomed
+     *
+     * @param query - String of {@link Track} title or position to jump to
+     */
     public jump(query: number | string): number | undefined {
         let position = typeof query === "number" ? query : -1;
         let diff = 0;
@@ -203,6 +319,16 @@ export default class Player {
         return undefined;
     }
 
+    /**
+     * Removes {@link Track} from {@link queue | the queue} by the position determined by the query.
+     *
+     * @remarks If string passed, then position will be determined by
+     * the largest common sequence across all the {@link queue} titles.
+     *
+     * @return Metadata of removed track, or undefined if nothing happened
+     *
+     * @param query - String of {@link Track} title or position to perfome removal at
+     */
     public remove(query?: number | string): Track | undefined {
         const oldPosition = this.queue.position;
 
@@ -231,10 +357,18 @@ export default class Player {
         return undefined;
     }
 
+    /**
+     * Restarts playback from timecode specified.
+     *
+     * @param time - Amount of seconds to start playback from
+     */
     public seek(time: number): void {
         this.play(time);
     }
 
+    /**
+     * Clears {@link queue} completely - not destroying {@link voiceConnection_}.
+     */
     public clear(): void {
         this.queue.clear();
         this.resource_ = undefined;
@@ -244,15 +378,23 @@ export default class Player {
         }
     }
 
+    /**
+     * Destroys this instance of {@link Player} and deletes it from controller mapping.
+     */
     public destroy(): void {
         if (this.connection_) {
             this.connection_.destroy();
         }
 
         this.player_.stop();
-        this.music.delete(this.guild.id);
+        this.music_.delete(this.guild_.id);
     }
 
+    /**
+     * Pauses/unpauses {@link AudioPlayer} playback.
+     *
+     * @returns True if paused, or False if unpaused
+     */
     public pause(): boolean {
         if (this.player_.state.status === AudioPlayerStatus.Paused) {
             this.player_.unpause();
@@ -263,6 +405,9 @@ export default class Player {
         }
     }
 
+    /**
+     * Reshuffles {@link queue} order - will start new playback from the same position in the queue.
+     */
     public shuffle(): void {
         this.queue.shuffle();
 
@@ -272,10 +417,23 @@ export default class Player {
         }
     }
 
+    /**
+     * Stops {@link player_} that will emit {@link resourceEndResolvable}.
+     *
+     * @see {@link resourceEndResolvable} for understanding full behavior
+     */
     public skip(): void {
         this.player_.stop();
     }
 
+    /**
+     * Applies {@link Filter} preset to the current playback.
+     *
+     * @returns True if applied, false if revoked
+     *
+     * @param filter - Name of a filter to apply
+     * Must exist in Filter class
+     */
     public setFilter(filter?: string): boolean {
         const status = this.filter.toggle(filter);
 

modules/music/lib/queue.ts

@@ -1,16 +1,32 @@
 import { LoopOption, Track } from "./types.js";
 
+/**
+ * Class of {@link ./player#Player | Player's} queue.
+ *
+ * @public
+ */
 export default class Queue {
+    /**
+     * Array of {@link Track | Tracks} - content of queue.
+     */
     private tracks_: Track[] = [];
     public get tracks(): Track[] {
         return this.tracks_;
     }
 
+    /**
+     * Position of current playing track.
+     */
     private position_ = 0;
     public get position(): number {
         return this.position_;
     }
 
+    /**
+     * Defines behavior of queue.
+     *
+     * @see ./types.ts for more info about values.
+     */
     private loop_: LoopOption = "NONE";
     public get loop(): LoopOption {
         return this.loop_;
@@ -19,11 +35,21 @@ export default class Queue {
         this.loop_ = x;
     }
 
+    /**
+     * Queue overall duration in seconds.
+     */
     private duration_ = 0;
     public get duration(): number {
         return this.duration_;
     }
 
+    /**
+     * Skips current track.
+     *
+     * @remarks Behavior depends on loop option.
+     *
+     * @returns next {@link Track} or undefined if end was reached.
+     */
     public next(): Track | undefined {
         if (this.loop_ === "SONG") {
             return this.current();
@@ -46,6 +72,9 @@ export default class Queue {
         }
     }
 
+    /**
+     * Shuffles queue by using simple Math.random.
+     */
     public shuffle(): void {
         let currentIndex = this.tracks_.length;
 
@@ -62,23 +91,40 @@ export default class Queue {
         this.position_ = 0;
     }
 
+    /**
+     * Inserts tracks from provided array at specific index.
+     *
+     * @returns first {@link Track} of inserted Tracks.
+     *
+     * @param tracks - List of Tracks to insert to the queue.
+     * @param index - Position at which insertion will be occurred.
+     */
     public push(tracks: Track[], index?: number): Track {
-        if (!index || index >= this.tracks_.length) {
-            this.tracks_ = this.tracks_.concat(tracks);
-        } else {
-            this.tracks_.splice(Math.max(0, index), 0, ...tracks);
-            if (this.position_ >= index) {
-                this.position_ += tracks.length;
-            }
-        }
-
         for (const track of tracks) {
             this.duration_ += track.duration;
         }
 
-        return this.tracks_[index || this.tracks_.length - 1];
+        if (!index || index >= this.tracks_.length) {
+            this.tracks_ = this.tracks_.concat(tracks);
+
+            return this.tracks_[this.tracks_.length - tracks.length];
         }
 
+        this.tracks_.splice(Math.max(0, index), 0, ...tracks);
+        if (this.position_ >= index) {
+            this.position_ += tracks.length;
+        }
+
+        return this.tracks_[Math.max(0, index)];
+    }
+
+    /**
+     * Removes {@link Track} from the queue at position specified.
+     *
+     * @returns Track that was deleted or undefined if not.
+     *
+     * @param query - Index of element that must be deleted.
+     */
     public pop(query: number): Track | undefined {
         if (query >= 0 && query < this.tracks_.length) {
             const track = this.tracks_[query];
@@ -92,6 +138,11 @@ export default class Queue {
         return undefined;
     }
 
+    /**
+     * Assigns position new value.
+     *
+     * @returns {@link Track} at position specified or undefined if index out of bounds.
+     */
     public jump(query: number): Track | undefined {
         if (query >= 0 && query < this.tracks_.length) {
             const track = this.tracks_[query];
@@ -102,14 +153,27 @@ export default class Queue {
         return undefined;
     }
 
+    /**
+     * Returns current {@link Track} (at position).
+     *
+     * @returns Track at internal position.
+     */
     public current(): Track {
         return this.tracks_[this.position_];
     }
 
+    /**
+     * Checks if queue is empty.
+     *
+     * @returns True is queue is empty, False otherwise.
+     */
     public empty(): boolean {
         return this.tracks_.length === 0;
     }
 
+    /**
+     * Clears entire queue and sets position to 0.
+     */
     public clear(): void {
         this.tracks_ = [];
         this.position_ = 0;

modules/music/lib/replies.ts

@@ -1,7 +1,8 @@
 import { AudioResource } from "@discordjs/voice";
 import { BaseMessageOptions, EmbedBuilder, italic } from "discord.js";
 
-import config from "../../../config.js";
+import config from "$config.js";
+
 import { loopMoji, statusBarGenerator, toISOTime, volumeMoji } from "./misc.js";
 import Player from "./player.js";
 import Queue from "./queue.js";
@@ -38,7 +39,7 @@ const replies = {
             .setColor(config.colors.default)
             .setAuthor({
                 iconURL: track.requester.avatarURL() ?? undefined,
-                name: track.requester.tag
+                name: track.requester.username
             })
             .setTitle(track.title)
             .setURL(track.url)
@@ -202,7 +203,7 @@ const replies = {
                 .setColor(config.colors.success)
                 .setAuthor({
                     iconURL: track.requester.avatarURL() ?? undefined,
-                    name: track.requester.tag
+                    name: track.requester.username
                 })
                 .setTitle(track.title)
                 .setURL(track.url)
@@ -261,7 +262,7 @@ const replies = {
 
         embed
             .setColor(config.colors.success)
-            .setDescription("Playback can experience some lags during intial transformation.");
+            .setDescription("Playback can experience some lags during initial transformation.");
 
         return { embeds: [embed] };
     },
@@ -290,7 +291,7 @@ const replies = {
                 .setTitle(`${queue.position + 1}. ${resource.metadata.title}`)
                 .setAuthor({
                     iconURL: resource.metadata.requester.avatarURL() ?? undefined,
-                    name: resource.metadata.requester.tag
+                    name: resource.metadata.requester.username
                 })
                 .setURL(resource.metadata.url)
                 .setDescription(statusBarGenerator(resource))
@@ -306,7 +307,7 @@ const replies = {
         embed.setColor(config.colors.info).setFields(
             queue.tracks.slice(position, position + 10).map((value, index) => ({
                 name: `${position + index + 1}. ${value.title.padEnd(35)}`,
-                value: `[${toISOTime(value.duration)}] | ${value.requester.tag}`
+                value: `[${toISOTime(value.duration)}] | ${value.requester.username}`
             }))
         );
 
@@ -320,7 +321,7 @@ const replies = {
                 .setTitle(`${player.queue.position + 1}. ${player.resource.metadata.title}`)
                 .setAuthor({
                     iconURL: player.resource.metadata.requester.avatarURL() ?? undefined,
-                    name: player.resource.metadata.requester.tag
+                    name: player.resource.metadata.requester.username
                 })
                 .setURL(player.resource.metadata.url)
                 .setDescription(statusBarGenerator(player.resource))
@@ -338,7 +339,7 @@ const replies = {
                 value:
                     player.filter
                         .toggled()
-                        .map((value) => value[0])
+                        .map((value) => value.name)
                         .join("\n") + "\ndefault",
                 inline: true
             },

modules/music/lib/types.ts

@@ -0,0 +1,99 @@
+import { User } from "discord.js";
+
+import { dlpExtractorsValues } from "./fetch/extractors.js";
+
+/**
+ * Track information fetched by Dlp.
+ *
+ * @public
+ */
+export interface TrackBase {
+    /** URL of track. */
+    url: string;
+
+    /** Track title. */
+    title: string;
+
+    /** Link to track thumbnail. */
+    thumbnail: string;
+
+    /** Track duration in seconds. */
+    duration: number;
+}
+
+/**
+ * Track information with {@link User} that requested it.
+ *
+ * @public
+ */
+export interface Track extends TrackBase {
+    /** User requested this track. */
+    requester: User;
+}
+
+/**
+ * Player loop options.
+ *
+ * @remarks LOOP - Looping queue;
+ *          SONG - Looping single song;
+ *          NONE - Stops after queue end; (default)
+ *          AUTO - Random order;
+ *
+ * @public
+ */
+export type LoopOption = "LOOP" | "SONG" | "NONE" | "AUTO";
+
+/**
+ * Dlp fetched track list.
+ *
+ * @public
+ */
+export type DlpInfo = TrackBase[];
+
+/**
+ * Dlp supported extractors as types.
+ *
+ * @public
+ */
+export type dlpExtractorKey = (typeof dlpExtractorsValues)[number];
+
+/**
+ * Actual Dlp dump that later translates to {@link DlpInfo}.
+ *
+ * @public
+ */
+export interface DlpDump {
+    /** Id of resource. */
+    id: string;
+
+    /** URL passed to Dlp or link to resource found. */
+    original_url: string;
+
+    /** Link to webpage of resource requested. */
+    webpage_url?: string;
+
+    /** Resource title. */
+    title?: string;
+
+    /** Resource duration in seconds. */
+    duration?: number;
+
+    /** Link to resource thumbnail. */
+    thumbnail?: string;
+
+    /** Resource's extractor identifier. */
+    extractor_key: dlpExtractorKey;
+}
+
+/**
+ * Options that shall be passed to DlpStream function.
+ *
+ * @public
+ */
+export interface dlpStreamOptions {
+    /** Amount of seconds to start playback from. */
+    seek?: number;
+
+    /** Args for FFMPEG transcoder. */
+    ffmpeg?: string[];
+}

modules/music/module.ts

@@ -0,0 +1,16 @@
+/**
+ * Music module definition.
+ *
+ * Module to play media content from various sites.
+ * @see ./lib/fetch/extractors.ts for site extractors.
+ *
+ * @packageDocumentation
+ */
+import Music from "./lib/music.js";
+
+const name = "music";
+const description = "Music module";
+
+const controller = new Music();
+
+export { controller, description, name };

modules/music/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "paths": {
+      "$config.js": ["../../config.js"],
+      "$lib/*": ["../../src/lib/*"],
+      "$mlib/*": ["./lib/*"]
+    },
+
+    "rootDir": ".",
+    "outDir": "../../dist/modules/music",
+
+    "composite": true
+  },
+  "references": [{ "path": "../../src/" }]
+}

package.json

@@ -1,54 +1,57 @@
 {
-  "name": "quetza-bot",
+  "name": "quetza",
-  "engines": {
+  "version": "2024.11.0",
-    "node": "18.x.x",
+  "description": "Awesome Discord bot that performs various duties",
-    "npm": "*"
-  },
   "type": "module",
-  "version": "4.0.0",
+  "main": "./dist/src/index.js",
-  "description": "Discord multifunctional bot",
+  "scripts": {
-  "author": {
+    "start": "node ./dist/src/index.js",
-    "name": "unknowableshade",
+    "build": "./build.sh",
-    "email": "60275123+unknowableshade@users.noreply.github.com",
+    "clean": "rm -rf ./dist",
-    "url": "https://unknowableshade.ru"
+    "lint": "pnpm exec eslint . && pnpm exec prettier --check .",
+    "format": "pnpm exec eslint --fix . && pnpm exec prettier --write .",
+    "preinstall": "pnpm dlx only-allow pnpm"
   },
+  "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/unknowableshade/quetza-bot.git"
+    "url": "git+https://github.com/deytenit/Quetza.git"
+  },
+  "author": {
+    "name": "Vladimir Eremin",
+    "email": "personal@ermnvldmr.com",
+    "url": "https://ermnvldmr.com"
   },
   "bugs": {
-    "url": "https://github.com/unknowableshade/quetza-bot/issues"
+    "url": "https://github.com/deytenit/Quetza/issues"
   },
-  "readme": "https://github.com/unknowableshade/quetza-bot#readme",
+  "readme": "https://github.com/deytenit/Quetza#readme",
-  "license": "MIT",
+  "engines": {
-  "main": "dist/index.js",
+    "node": "22.x.x",
-  "scripts": {
+    "npm": "*"
-    "start": "node dist/index.js",
-    "build": "pnpm exec tsc --build",
-    "clean": "pnpm exec tsc --build --clean",
-    "lint": "pnpm exec eslint --fix . && pnpm exec prettier --write .",
-    "preinstall": "pnpx only-allow pnpm"
   },
   "dependencies": {
     "@discordjs/opus": "^0.9.0",
-    "@discordjs/voice": "^0.16.0",
+    "@discordjs/voice": "^0.17.0",
-    "@prisma/client": "4.13.0",
+    "discord.js": "^14.16.3",
-    "discord-ytdl-core": "^5.0.4",
+    "prism-media": "^1.3.5",
-    "discord.js": "^14.11.0",
     "tweetnacl": "^1.0.3",
-    "winston": "^3.8.2",
+    "winston": "^3.16.0"
-    "ytdl-core": "^4.11.4"
   },
   "devDependencies": {
-    "@types/node": "^18.16.6",
+    "@eslint/eslintrc": "^3.1.0",
-    "@typescript-eslint/eslint-plugin": "^5.59.5",
+    "@eslint/js": "^9.14.0",
-    "@typescript-eslint/parser": "^5.59.5",
+    "@types/node": "^22.9.0",
-    "eslint": "^8.40.0",
+    "@typescript-eslint/eslint-plugin": "^8.13.0",
-    "eslint-config-prettier": "^8.8.0",
+    "@typescript-eslint/parser": "^8.13.0",
-    "eslint-plugin-import": "^2.27.5",
+    "eslint": "^9.14.0",
-    "eslint-plugin-simple-import-sort": "^10.0.0",
+    "eslint-config-prettier": "^9.1.0",
-    "prettier": "^2.8.8",
+    "eslint-plugin-import": "^2.31.0",
-    "prisma": "^4.13.0",
+    "eslint-plugin-simple-import-sort": "^12.1.1",
-    "typescript": "^4.9.5"
+    "globals": "^15.12.0",
+    "mocha": "^10.8.2",
+    "prettier": "^3.3.3",
+    "tsc-alias": "^1.8.10",
+    "typescript": "^5.6.3"
   }
 }

prisma/migrations/20230504001713_init/migration.sql

@@ -1,22 +0,0 @@
--- CreateTable
-CREATE TABLE "Guild" (
-    "id" TEXT NOT NULL,
-
-    CONSTRAINT "Guild_pkey" PRIMARY KEY ("id")
-);
-
--- CreateTable
-CREATE TABLE "Event" (
-    "objectId" SERIAL NOT NULL,
-    "title" TEXT NOT NULL,
-    "Roles" TEXT[],
-    "guildId" TEXT NOT NULL,
-
-    CONSTRAINT "Event_pkey" PRIMARY KEY ("objectId")
-);
-
--- CreateIndex
-CREATE UNIQUE INDEX "Event_guildId_title_key" ON "Event"("guildId", "title");
-
--- AddForeignKey
-ALTER TABLE "Event" ADD CONSTRAINT "Event_guildId_fkey" FOREIGN KEY ("guildId") REFERENCES "Guild"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

prisma/migrations/20230506101558_queues_and_penalties/migration.sql

@@ -1,77 +0,0 @@
-/*
-  Warnings:
-
-  - The primary key for the `Event` table will be changed. If it partially fails, the table could be left without primary key constraint.
-  - You are about to drop the column `Roles` on the `Event` table. All the data in the column will be lost.
-  - You are about to drop the column `objectId` on the `Event` table. All the data in the column will be lost.
-  - A unique constraint covering the columns `[title,action,guildId]` on the table `Event` will be added. If there are existing duplicate values, this will fail.
-  - Added the required column `action` to the `Event` table without a default value. This is not possible if the table is not empty.
-  - Added the required column `metadata` to the `Event` table without a default value. This is not possible if the table is not empty.
-
-*/
--- CreateEnum
-CREATE TYPE "PenaltyType" AS ENUM ('BAN', 'TIMEOUT', 'WARN');
-
--- DropIndex
-DROP INDEX "Event_guildId_title_key";
-
--- AlterTable
-ALTER TABLE "Event" DROP CONSTRAINT "Event_pkey",
-DROP COLUMN "Roles",
-DROP COLUMN "objectId",
-ADD COLUMN     "action" TEXT NOT NULL,
-ADD COLUMN     "metadata" JSONB NOT NULL;
-
--- CreateTable
-CREATE TABLE "Queue" (
-    "title" TEXT NOT NULL,
-    "description" TEXT,
-    "updatedAt" TIMESTAMP(3) NOT NULL,
-    "Tracks" JSONB NOT NULL,
-    "userId" TEXT NOT NULL,
-    "authorId" TEXT NOT NULL,
-    "guildId" TEXT NOT NULL
-);
-
--- CreateTable
-CREATE TABLE "Member" (
-    "userId" TEXT NOT NULL,
-    "level" INTEGER NOT NULL DEFAULT 0,
-    "guildId" TEXT NOT NULL
-);
-
--- CreateTable
-CREATE TABLE "Penalty" (
-    "userId" TEXT NOT NULL,
-    "type" "PenaltyType" NOT NULL,
-    "reason" TEXT,
-    "expires" TIMESTAMP(3),
-    "guildId" TEXT NOT NULL
-);
-
--- CreateIndex
-CREATE UNIQUE INDEX "Queue_title_guildId_key" ON "Queue"("title", "guildId");
-
--- CreateIndex
-CREATE UNIQUE INDEX "Member_userId_guildId_key" ON "Member"("userId", "guildId");
-
--- CreateIndex
-CREATE UNIQUE INDEX "Penalty_type_userId_guildId_key" ON "Penalty"("type", "userId", "guildId");
-
--- CreateIndex
-CREATE UNIQUE INDEX "Event_title_action_guildId_key" ON "Event"("title", "action", "guildId");
-
--- AddForeignKey
-ALTER TABLE "Queue" ADD CONSTRAINT "Queue_userId_guildId_fkey" FOREIGN KEY ("userId", "guildId") REFERENCES "Member"("userId", "guildId") ON DELETE RESTRICT ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE "Queue" ADD CONSTRAINT "Queue_guildId_fkey" FOREIGN KEY ("guildId") REFERENCES "Guild"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE "Member" ADD CONSTRAINT "Member_guildId_fkey" FOREIGN KEY ("guildId") REFERENCES "Guild"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE "Penalty" ADD CONSTRAINT "Penalty_userId_guildId_fkey" FOREIGN KEY ("userId", "guildId") REFERENCES "Member"("userId", "guildId") ON DELETE RESTRICT ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE "Penalty" ADD CONSTRAINT "Penalty_guildId_fkey" FOREIGN KEY ("guildId") REFERENCES "Guild"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

prisma/migrations/migration_lock.toml

@@ -1,3 +0,0 @@
-# Please do not edit this file manually
-# It should be added in your version-control system (i.e. Git)
-provider = "postgresql"

prisma/schema.prisma

@@ -1,68 +0,0 @@
-// This is your Prisma schema file,
-// learn more about it in the docs: https://pris.ly/d/prisma-schema
-
-generator client {
-  provider = "prisma-client-js"
-}
-
-datasource db {
-  provider = "postgresql"
-  url      = env("DATABASE_URL")
-}
-
-model Guild {
-  id            String    @id
-  events        Event[]
-  members       Member[]
-  penalties     Penalty[]
-  queues        Queue[]
-}
-
-model Queue {
-  title         String
-  description   String?
-  updatedAt     DateTime  @updatedAt
-  Tracks        Json
-  Member        Member    @relation(fields: [userId, guildId], references: [userId, guildId])
-  userId        String
-  authorId      String
-  Guild         Guild     @relation(fields: [guildId], references: [id])
-  guildId       String
-  @@unique([title, guildId], name: "queueIdentifier")
-}
-
-model Member {
-  userId        String
-  level         Int       @default(0)
-  queues        Queue[]
-  Guild         Guild     @relation(fields: [guildId], references: [id])
-  guildId       String
-  penalties     Penalty[]
-  @@unique([userId, guildId], name: "memberIdentifier")
-}
-
-enum PenaltyType {
-  BAN
-  TIMEOUT
-  WARN
-}
-
-model Penalty {
-  Member        Member    @relation(fields: [userId, guildId], references: [userId, guildId])
-  userId        String
-  type          PenaltyType
-  reason        String?
-  expires       DateTime?
-  Guild         Guild    @relation(fields: [guildId], references: [id])
-  guildId       String
-  @@unique([type, userId, guildId], name: "penaltyIdentifier")
-}
-
-model Event {
-  title         String
-  action        String
-  metadata      Json
-  Guild         Guild    @relation(fields: [guildId], references: [id])
-  guildId       String
-  @@unique([title, action, guildId], name: "eventIdentifier")
-}

setup-hooks.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -e
+
+mkdir -p .git/hooks
+
+HOOK_CONTENT="#!/bin/sh
+pnpm run lint
+if [ \$? -ne 0 ]; then
+    echo 'Pre-commit hook failed. Please fix the issues and commit again.'
+    exit 1
+fi
+"
+
+echo "$HOOK_CONTENT" > .git/hooks/pre-commit
+
+chmod +x .git/hooks/pre-commit
+
+echo "Pre-commit hook installed successfully!"

src/config.ts

@@ -1,26 +0,0 @@
-import { ActivityOptions, ActivityType, ColorResolvable } from "discord.js";
-import path from "path";
-import { fileURLToPath } from "url";
-
-const ROOT = path.dirname(fileURLToPath(import.meta.url));
-const discordToken = process.env.DISCORD_TOKEN;
-const modulesDir = path.join(ROOT, "/modules/");
-const binariesDir = path.join(ROOT, "/../bin/");
-const activityStatus: ActivityOptions = { type: ActivityType.Watching, name: "over you" };
-const colors = {
-    default: "#ff6e9b" as ColorResolvable,
-    error: "#b94e59" as ColorResolvable,
-    warning: "#e5925f" as ColorResolvable,
-    info: "#367df6" as ColorResolvable,
-    success: "#83d18e" as ColorResolvable
-};
-
-const config = {
-    discordToken,
-    modulesDir,
-    binariesDir,
-    activityStatus,
-    colors
-};
-
-export default config;

src/index.ts

@@ -1,8 +1,13 @@
 import { GatewayIntentBits } from "discord.js";
 
-import config from "./config.js";
+import config from "$config.js";
-import Client from "./lib/client.js";
+import Client from "$lib/client.js";
 
+/**
+ * Ready to go bot instance.
+ *
+ * @remarks Quetza itself.
+ */
 const client = new Client({
     intents: [
         GatewayIntentBits.Guilds,
@@ -11,4 +16,4 @@ const client = new Client({
     ]
 });
 
-client.login(config.discordToken);
+client.login(config.application.token);

src/lib/client.ts

@@ -1,88 +1,132 @@
-import { PrismaClient } from "@prisma/client";
 import { Client as DiscordClient, ClientOptions, Collection } from "discord.js";
-import { existsSync, lstatSync, readdirSync } from "fs";
+import { readdirSync } from "fs";
-import path from "path";
-import { pathToFileURL } from "url";
 
-import config from "../config.js";
+import config from "$config.js";
-import { Command, Event, Module, ModuleMetadata } from "./types.js";
+import { importDir, pathThrough } from "$lib/misc.js";
+import {
+    ApplicationStatus,
+    Command,
+    CommandBase,
+    Event,
+    EventBase,
+    Module,
+    ModuleBase
+} from "$lib/types.js";
 
-const MODULE_ENTRY = "module.js";
+/**
-const MODULE_COMMANDS = "commands";
+ * Creating path to {@link Module | Module's} declaration file.
-const MODULE_EVENTS = "events";
+ *
+ * @internal
+ */
+const toModuleDeclaration = pathThrough([config.path.modules], ["module.js"]);
 
-export default class Client extends DiscordClient {
+/**
+ * Creating path to {@link Module | Module's} commands directory.
+ *
+ * @internal
+ */
+const toModuleCommands = pathThrough([config.path.modules], ["commands"]);
+
+/**
+ * Creating path to {@link Module | Module's} events directory.
+ *
+ * @internal
+ */
+const toModuleEvents = pathThrough([config.path.modules], ["events"]);
+
+/**
+ * Bot client enchanced with module handling and database access.
+ *
+ * @typeparam T - True if client ready, false otherwise.
+ *
+ * @public
+ */
+export default class Client<T extends boolean = boolean> extends DiscordClient<T> {
+    /**
+     * Mapping command name to its {@link Command | instance}.
+     */
     public readonly commands = new Collection<string, Command>();
 
-    public readonly modules = new Collection<string, ModuleMetadata>();
+    /**
+     * Mapping event name to its {@link Event | instance}.
+     */
+    public readonly events = new Collection<string, Event>();
 
-    public readonly db = new PrismaClient();
+    /**
+     * Mapping module name to its {@link Module | instance}.
+     */
+    public readonly modules = new Collection<string, Module>();
 
+    /**
+     * Constructs Quetza Client.
+     *
+     * @param options - Discord.js client options
+     */
     public constructor(options: ClientOptions) {
         super(options);
 
-        for (const module of readdirSync(config.modulesDir)) {
+        readdirSync(config.path.modules).forEach((module) =>
-            const modulePath = path.join(config.modulesDir, module);
+            this.importModule(
-
+                toModuleDeclaration(module),
-            if (!lstatSync(modulePath).isDirectory()) {
+                toModuleCommands(module),
-                continue;
+                toModuleEvents(module)
-            }
+            )
-
-            import(pathToFileURL(path.join(modulePath, MODULE_ENTRY)).toString()).then(
-                (data: Module) => this.loadModule(data)
         );
     }
+
+    /**
+     * Generates client's status by providing Bot User and Loaded Modules info.
+     *
+     * @returns Status of application.
+     * Additional info such as Application ID provided if {@link Client} is ready.
+     */
+    public generateApplicationStatus(): ApplicationStatus {
+        const modules = Array.from(this.modules.values());
+
+        if (!this.isReady()) {
+            return {
+                applicationId: null,
+                tag: null,
+                modules
+            };
         }
 
-    private loadModule(data: Module): void {
+        return {
-        const commands: string[] = [];
+            applicationId: this.application.id,
-        const events: string[] = [];
+            tag: this.user.tag,
-
+            modules
-        function importModule(dir: string, importThen: (data: Command & Event) => void) {
+        };
-            if (existsSync(dir)) {
-                for (const source of readdirSync(dir)) {
-                    const file = path.join(dir, source);
-
-                    if (!lstatSync(file).isFile() || !file.endsWith(".js")) {
-                        continue;
     }
 
-                    import(pathToFileURL(file).toString()).then(importThen);
+    /**
-                }
+     * Imports module metadata, commands and events to the client.
-            }
+     *
-        }
+     * @param declaration - File declaring module information.
+     * @param commands - Directory containing module's commands.
+     * @param events - Directory containing module's events.
+     */
+    private async importModule(
+        declaration: string,
+        commands: string,
+        events: string
+    ): Promise<void> {
+        const module = await import(declaration).then((module: ModuleBase) =>
+            this.modules.ensure(module.name, () => ({ ...module, commands: [], events: [] }))
+        );
 
-        importModule(path.join(data.rootDir, MODULE_COMMANDS), (command: Command) => {
+        importDir<CommandBase>(commands, (command) => {
-            this.commands.set(command.data.name, command);
+            const saved = this.commands.ensure(command.data.name, () => ({ ...command, module }));
-            commands.push(command.data.name);
+
+            module.commands.push(saved);
         });
 
-        importModule(path.join(data.rootDir, MODULE_EVENTS), (event: Event) => {
+        importDir<EventBase>(events, (event) => {
-            this.on(event.name, (...eventee: unknown[]) => event.execute(this, eventee));
+            const saved = this.events.ensure(event.name, () => ({ ...event, module }));
-            events.push(event.name);
+
+            module.events.push(saved);
+            this.on(event.name, (...eventee: unknown[]) =>
+                saved.execute(this, eventee, module.controller)
+            );
         });
-
-        this.modules.set(data.name, {
-            ...data,
-            commands,
-            events
-        });
-    }
-
-    public generateApplicationStatus(): string[] {
-        const modulesStatus = this.modules.map((module) => {
-            const tag = `✓ ${module.name}@${module.tag} module is loaded.`;
-            const commands = module.commands.map((name) => " - " + name).join("\n");
-            const events = module.events.map((name) => " - " + name).join("\n");
-
-            return [`${tag}\n`, "commands:", `${commands}`, "events:", `${events}`].join("\n");
-        });
-
-        const clientStatus =
-            this.user && this.application
-                ? `✓ ${this.application.id} successfully logged in as ${this.user.tag}.`
-                : "✖ Application is not availiable.";
-
-        return modulesStatus.concat(clientStatus);
     }
 }

src/lib/error.ts

@@ -0,0 +1,52 @@
+/**
+ * Base class for all quetza's errors.
+ *
+ * @public
+ */
+export default class QuetzaError extends Error {
+    /**
+     * Default prefix value stands for quetza's base features.
+     */
+    public static readonly DEFAULT_PREFIX = "QZ";
+
+    /**
+     * Error code is an identifier for specific Error in the same module.
+     */
+    public readonly code: number;
+
+    /**
+     * Prefix defines module where Error has occured.
+     *
+     * @defaultValue `QuetzaError.DEFAULT_PREFIX`
+     */
+    public readonly prefix: string;
+
+    /**
+     * Constructs QuetzaError class.
+     *
+     * @param msg - Error message (that shall not be displayed to end user)
+     * @param code - {@link code | Code} unique to error in module
+     * @param prefix - Identifier of module where error has occurred
+     */
+    public constructor(msg: string, code: number, prefix = QuetzaError.DEFAULT_PREFIX) {
+        super(msg);
+        this.code = code;
+        this.prefix = prefix;
+    }
+
+    /**
+     * Must create a unique error ID if no collision bugs were written.
+     *
+     * @returns error ID as concatenation of {@link prefix} and {@link code}
+     *
+     * @example
+     * ```ts
+     * const error = new QuetzaError("Some error.", 404, "NF");
+     *
+     * error.getErrorId(); // "NF404"
+     * ```
+     */
+    public getErrorId(): string {
+        return this.prefix + this.code.toString();
+    }
+}

src/lib/logger.ts

@@ -1,20 +1,33 @@
+import path from "path";
 import winston from "winston";
 
+import config from "$config.js";
+
+/** Error logging file path.
+ *
+ * @internal
+ */
+const errorLog = path.join(config.path.log, "error.log");
+
+/** Combined logging file path.
+ *
+ * @internal
+ */
+const combinedLog = path.join(config.path.log, "combined.log");
+
+/**
+ * Logger instance. Use it for logging.
+ *
+ * @public
+ */
 const logger = winston.createLogger({
-    level: "info",
+    levels: winston.config.syslog.levels,
     format: winston.format.combine(winston.format.timestamp(), winston.format.json()),
     transports: [
-        new winston.transports.File({ filename: "logs/error.log", level: "error" }),
+        new winston.transports.Console({ format: winston.format.simple() }),
-        new winston.transports.File({ filename: "logs/combined.log" })
+        new winston.transports.File({ filename: errorLog, level: "error" }),
+        new winston.transports.File({ filename: combinedLog })
     ]
 });
 
-if (process.env.NODE_ENV !== "production") {
-    logger.add(
-        new winston.transports.Console({
-            format: winston.format.simple()
-        })
-    );
-}
-
 export default logger;

src/lib/misc.ts

@@ -0,0 +1,77 @@
+/**
+ * Definitions for miscellaneous functions used in this project.
+ */
+
+import assert from "assert";
+import { existsSync, readdirSync } from "fs";
+import path from "path";
+import { pathToFileURL } from "url";
+
+/**
+ * Clamps value between min and max params.
+ *
+ * @returns Function with defined min and max, expecting a value to clamp.
+ *
+ * @param min - value less than min will resolve to min.
+ * @param max - value greater than max will resolve to max.
+ *
+ * @public
+ */
+export function clamp(min: number, max: number) {
+    assert(min <= max);
+
+    return (value: number) => Math.max(min, Math.max(max, value));
+}
+
+/**
+ * Converts Path to File URI Scheme String.
+ *
+ * @returns URI.toString() made from joined paths.
+ *
+ * @param paths - Strings that should be joined and converted to URI.
+ *
+ * @public
+ */
+export function pathToURI(...paths: string[]): string {
+    return pathToFileURL(path.join(...paths)).toString();
+}
+
+/**
+ * Imports every module withing provided folder with callback.
+ *
+ * @remarks Will import nothing if directory not exists.
+ *
+ * @typeparam T - Type of whatever you're importing.
+ * If not 'any', expecting every import to have the same semantics.
+ *
+ * @param dir - Directory where importing modules resides.
+ * @param callback - Function to run on every import.
+ *
+ * @public
+ */
+export function importDir<T>(dir: string, callback: (module: T) => void) {
+    if (!existsSync(dir)) {
+        return;
+    }
+
+    readdirSync(dir)
+        .filter((source) => source.endsWith(".js"))
+        .forEach((source) => import(pathToURI(dir, source)).then(callback));
+}
+
+/**
+ * Creates function that joins paths with predefined origin and target.
+ *
+ * @returns String with following structure: '...origins/...through/...target'.
+ *
+ * @param origins - Paths that will be joined and prepended to 'through'.
+ * @param targets - Paths that will be joined and appended to 'through'.
+ *
+ * @public
+ */
+export function pathThrough(
+    origins: string[],
+    targets: string[]
+): (...through: string[]) => string {
+    return (...through: string[]) => path.join(...origins, ...through, ...targets);
+}

src/lib/types.ts

@@ -1,27 +1,103 @@
-import { ApplicationCommandData, CommandInteraction } from "discord.js";
+/**
+ * Quetza's base type declarations.
+ *
+ * @see Architecture documentation for more understanding of its purpose.
+ */
+import { ApplicationCommandData, CommandInteraction, If } from "discord.js";
 
-import Client from "./client.js";
+import Client from "$lib/client.js";
 
-export interface Module {
+/**
+ * Quetza's module declaration.
+ *
+ * @public
+ */
+export interface ModuleBase {
+    /** Name of a module. */
     name: string;
-    description?: string;
+
-    author: string;
+    /** Description of a module. */
-    tag: string;
+    description: string;
+
+    /** Module controller. */
     controller?: unknown;
-    rootDir: string;
 }
 
-export interface ModuleMetadata extends Module {
+/**
-    commands: string[];
+ * Complete {@link ModuleBase} declaration with commands and events.
-    events: string[];
+ *
+ * @public
+ */
+export interface Module extends ModuleBase {
+    /** Module's commands. */
+    commands: CommandBase[];
+
+    /** Module's events. */
+    events: EventBase[];
 }
 
-export interface Command {
+/**
+ * Quetza's command interaction declaration.
+ *
+ * @public
+ */
+export interface CommandBase {
+    /** Command metadata that will be passed to the Discord API. */
     data: ApplicationCommandData;
-    execute: (client: Client, interaction: CommandInteraction) => Promise<void>;
+
+    /** Function that will be executed upon invoking this interaction. */
+    execute: (
+        client: Client,
+        interaction: CommandInteraction,
+        controller?: unknown
+    ) => Promise<void>;
 }
 
-export interface Event {
+/**
+ * {@link ModuleBase} with {@link Module} included.
+ *
+ * @public
+ */
+export interface Command extends CommandBase {
+    /** Module containing this Command. */
+    module: Module;
+}
+
+/**
+ * Quetza's event declaration.
+ *
+ * @public
+ */
+export interface EventBase {
+    /** Name of an event to listen. */
     name: string;
-    execute: (client: Client, eventee: unknown[]) => Promise<void>;
+
+    /** Function that will be executed upon event emitting. */
+    execute: (client: Client, eventee: unknown[], controller?: unknown) => Promise<void>;
+}
+
+/**
+ * {@link EventBase} with {@link Module} included.
+ *
+ * @public
+ */
+export interface Event extends EventBase {
+    /** Module containing this Event. */
+    module: ModuleBase;
+}
+
+/**
+ * Application status provides information that may be useful at initialization.
+ *
+ * @public
+ */
+export interface ApplicationStatus<Ready extends boolean = boolean> {
+    /** Discord's ID of an application. */
+    applicationId: If<Ready, string>;
+
+    /** Tag of a bot user. */
+    tag: If<Ready, string>;
+
+    /** List of each module imported. */
+    modules: Module[];
 }

src/modules/core/events/interaction-create.ts

@@ -1,22 +0,0 @@
-import { Events, Interaction } from "discord.js";
-
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
-
-async function execute(client: Client, eventee: [Interaction]): Promise<void> {
-    const [interaction] = eventee;
-
-    logger.info("Interaction created.", interaction);
-
-    if (interaction.isCommand()) {
-        const command = client.commands.get(interaction.commandName);
-
-        if (command) {
-            command.execute(client, interaction);
-        }
-    }
-}
-
-const name = Events.InteractionCreate;
-
-export { execute, name };

src/modules/core/events/ready.ts

@@ -1,37 +0,0 @@
-import { generateDependencyReport } from "@discordjs/voice";
-import { Events } from "discord.js";
-
-import config from "../../../config.js";
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
-
-async function execute(client: Client): Promise<void> {
-    if (!client.user || !client.application) {
-        throw new Error("No application or user for it is provided.");
-    }
-
-    const commandData = Array.from(client.commands.values()).map((value) => value.data);
-
-    if (process.env.NODE_ENV === "development" && process.env.TEST_GUILD) {
-        logger.info("Development mode: Commands will be pushed to the test guild!");
-
-        logger.info(generateDependencyReport());
-
-        const guild = await client.guilds.fetch(process.env.TEST_GUILD);
-        guild.commands.set(commandData);
-    }
-
-    if (process.env.NODE_ENV === "production") {
-        logger.info("Production mode: Commands will be pushed to the application!");
-
-        await client.application.commands.set(commandData);
-    }
-
-    client.generateApplicationStatus().forEach((report) => logger.info(report));
-
-    client.user.setActivity(config.activityStatus);
-}
-
-const name = Events.ClientReady;
-
-export { execute, name };

src/modules/core/module.ts

@@ -1,11 +0,0 @@
-import path from "path";
-import { fileURLToPath } from "url";
-
-const name = "core";
-const description = "Quetza core functionality";
-const author = "unknowableshade";
-const tag = "4.2.0";
-
-const rootDir = path.dirname(fileURLToPath(import.meta.url));
-
-export { author, description, name, rootDir, tag };

src/modules/music/events/voice-state-update.ts

@@ -1,36 +0,0 @@
-import { VoiceState } from "discord.js";
-
-import Client from "../../../lib/client.js";
-import { asleep } from "../lib/misc.js";
-import replies from "../lib/replies.js";
-import { controller } from "../module.js";
-
-const WAIT_TIME = 30_000;
-
-async function execute(client: Client, eventee: [VoiceState]): Promise<void> {
-    const [oldState] = eventee;
-
-    const player = controller.get(oldState.guild);
-
-    if (!player || !oldState.channel || !client.user) {
-        return;
-    }
-
-    if (
-        oldState.channel.members.size === 1 &&
-        oldState.channel.members.first()?.user === client.user
-    ) {
-        await asleep(WAIT_TIME);
-        if (
-            oldState.channel.members.size === 1 &&
-            oldState.channel.members.first()?.user === client.user
-        ) {
-            await player.channel.send(replies.alone());
-            player.destroy();
-        }
-    }
-}
-
-const name = "voiceStateUpdate";
-
-export { execute, name };

src/modules/music/lib/fetch.ts

@@ -1,102 +0,0 @@
-import { execFile } from "child_process";
-import path from "path";
-import { promisify } from "util";
-
-import config from "../../../config.js";
-import logger from "../../../lib/logger.js";
-
-const execFileAsync = promisify(execFile);
-
-const SEARCH_DEPTH = 5;
-
-function isURL(url: string): boolean {
-    return /^https?:\/\/(www\.)?[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_+.~#?&//=]*)$/.test(
-        url
-    );
-}
-
-interface YtdlDump {
-    id: string;
-    original_url: string;
-    title?: string;
-    uploader?: string;
-    duration?: number;
-    extractor_key: string;
-    thumbnail?: string;
-}
-
-interface YtdlResult {
-    url: string;
-    title: string;
-    thumbnail: string;
-    duration: number;
-}
-
-async function fetchInfoRecursive(query: string, depth = 0): Promise<YtdlResult[]> {
-    if (depth === SEARCH_DEPTH) {
-        logger.warn("yt-dlp failed to find anything.", { query });
-
-        return [];
-    }
-
-    const executable = await execFileAsync(path.join(config.binariesDir, "/yt-dlp"), [
-        query,
-        "-O %(.{id,original_url,title,uploader,duration,extractor_key,thumbnail})j",
-        "-s",
-        "--flat-playlist"
-    ]);
-
-    const dump: YtdlDump[] = JSON.parse("[" + executable.stdout.replace(/\n(?=.+)/g, ",") + "]");
-
-    const result: YtdlResult[] = [];
-
-    for (const entry of dump) {
-        if (entry.title && entry.thumbnail && entry.duration && entry.extractor_key === "Youtube") {
-            result.push({
-                url: entry.original_url,
-                title: entry.title,
-                thumbnail: entry.thumbnail,
-                duration: entry.duration
-            });
-
-            logger.info("yt-dlp has found corresponding youtube video.", {
-                result: result[result.length - 1]
-            });
-
-            continue;
-        }
-
-        let unwind: YtdlResult[];
-
-        if (entry.extractor_key !== "Youtube" && entry.title) {
-            unwind = await fetchInfoRecursive(
-                `ytsearch1:${entry.uploader ? entry.uploader + " - " : ""} ${entry.title}`,
-                depth + 1
-            );
-        } else {
-            unwind = await fetchInfoRecursive(entry.original_url, depth + 1);
-        }
-
-        if (unwind.length !== 0) {
-            result.push(unwind[0]);
-        }
-    }
-
-    return result;
-}
-
-export async function fetchInfo(query: string): Promise<YtdlResult[]> {
-    logger.info("yt-dlp was invoked.", { query });
-
-    try {
-        if (!isURL(query)) {
-            return await fetchInfoRecursive("ytsearch1:" + query);
-        }
-
-        return await fetchInfoRecursive(query);
-    } catch (error) {
-        logger.error("yt-dlp execution invoked error.", { error });
-
-        return [];
-    }
-}

src/modules/music/lib/filter.ts

@@ -1,66 +0,0 @@
-export default class Filter {
-    public static readonly filters = {
-        "Bassboost 1.5": "bass=g=15:f=110:w=0.3",
-        "bassboost 2.0": "bass=g=20:f=110:w=0.3",
-        "bassboost 3.0": "bass=g=30:f=110:w=0.3",
-        "8D": "apulsator=hz=0.09",
-        Daycore: "aresample=48000,asetrate=48000*0.75",
-        Nightcore: "aresample=48000,asetrate=48000*1.25",
-        Phaser: "aphaser=in_gain=0.4",
-        Tremolo: "tremolo",
-        Vibrato: "vibrato=f=6.5",
-        Reverse: "areverse",
-        Treble: "treble=g=5",
-        "Normalizer 1": "dynaudnorm=g=101",
-        "Normalizer 2": "acompressor",
-        "Surround Sound": "surround",
-        Pulsator: "apulsator=hz=1",
-        Subboost: "asubboost",
-        Karaoke: "stereotools=mlev=0.03",
-        Compressor: "compand=points=-80/-105|-62/-80|-15.4/-15.4|0/-12|20/-7.6",
-        Expander:
-            "compand=attacks=0:points=-80/-169|-54/-80|-49.5/-64.6|-41.1/-41.1|-25.8/-15|-10.8/-4.5|0/0|20/8.3",
-        "Soft Limiter": "compand=attacks=0:points=-80/-80|-12.4/-12.4|-6/-8|0/-6.8|20/-2.8",
-        Chorus: "chorus=0.7:0.9:55:0.4:0.25:2",
-        "Fade In": "afade=t=in:ss=0:d=10",
-        Dimming:
-            "afftfilt=\"'real=re * (1-clip((b/nb)*b,0,1))':imag='im * (1-clip((b/nb)*b,0,1))'\"",
-        Earrape: "channelsplit,sidechaingate=level_in=64"
-    };
-
-    private switches_ = new Set<string>();
-
-    public toggled(): [string, string][] {
-        return Object.entries(Filter.filters)
-            .filter((value) => this.switches_.has(value[0]))
-            .map((value) => [value[0], value[1]]);
-    }
-
-    public toggle(query?: string): boolean {
-        if (!query) {
-            this.switches_.clear();
-            return false;
-        }
-
-        if (!this.switches_.delete(query) && Object.hasOwn(Filter.filters, query)) {
-            this.switches_.add(query);
-            return true;
-        }
-
-        return false;
-    }
-
-    public size(): number {
-        return this.switches_.size;
-    }
-
-    public empty(): boolean {
-        return this.size() === 0;
-    }
-
-    public toString(): string {
-        return this.toggled()
-            .map((value) => value[1])
-            .join(",");
-    }
-}

src/modules/music/lib/music.ts

@@ -1,36 +0,0 @@
-import { Collection, Guild, GuildTextBasedChannel } from "discord.js";
-
-import logger from "../../../lib/logger.js";
-import Player from "./player.js";
-
-export default class Music {
-    private players_ = new Collection<string, Player>();
-
-    public get(guild: Guild, channel?: GuildTextBasedChannel): Player | undefined {
-        const player = this.players_.get(guild.id);
-
-        if (player) {
-            if (channel) {
-                player.channel = channel;
-            }
-
-            return player;
-        }
-    }
-
-    public set(guild: Guild, channel: GuildTextBasedChannel): Player {
-        const player = new Player(guild, this, channel);
-
-        this.players_.set(guild.id, player);
-
-        logger.info("Player was created.", { player });
-
-        return player;
-    }
-
-    public delete(guildId: string): void {
-        logger.info("Player was deleted.", { guildId });
-
-        this.players_.delete(guildId);
-    }
-}

src/modules/music/lib/types.ts

@@ -1,261 +0,0 @@
-import { User } from "discord.js";
-
-export interface Track {
-    url: string;
-    title: string;
-    thumbnail: string;
-    duration: number;
-    requester: User;
-}
-
-export type LoopOption = "LOOP" | "SONG" | "NONE" | "AUTO";
-
-export interface YtdlArgs {
-    help?: boolean;
-    version?: boolean;
-    update?: boolean;
-    ignoreErrors?: boolean;
-    abortOnError?: boolean;
-    dumpUserAgent?: boolean;
-    listExtractors?: boolean;
-    extractorDescriptions?: boolean;
-    forceGenericExtractor?: boolean;
-    defaultSearch?: string;
-    igonreConfig?: boolean;
-    configLocation?: string;
-    flatPlaylist?: boolean;
-    markWatched?: boolean;
-    noColor?: boolean;
-    proxy?: string;
-    socketTimeout?: number;
-    sourceAddress?: string;
-    forceIpv4?: boolean;
-    forceIpv6?: boolean;
-    geoVerificationProxy?: string;
-    geoBypass?: boolean;
-    geoBypassCountry?: string;
-    geoBypassIpBlock?: string;
-    playlistStart?: number;
-    playlistEnd?: number | "last";
-    playlistItems?: string;
-    matchTitle?: string;
-    rejectTitle?: string;
-    maxDownloads?: number;
-    minFilesize?: string;
-    maxFilesize?: string;
-    date?: string;
-    datebefore?: string;
-    dateafter?: string;
-    minViews?: number;
-    maxViews?: number;
-    matchFilter?: string;
-    noPlaylist?: boolean;
-    yesPlaylist?: boolean;
-    ageLimit?: number;
-    downloadArchive?: string;
-    includeAds?: boolean;
-    limitRate?: string;
-    retries?: number | "infinite";
-    skipUnavailableFragments?: boolean;
-    abortOnUnavailableFragment?: boolean;
-    keepFragments?: boolean;
-    bufferSize?: string;
-    noResizeBuffer?: boolean;
-    httpChunkSize?: string;
-    playlistReverse?: boolean;
-    playlistRandom?: boolean;
-    xattrSetFilesize?: boolean;
-    hlsPreferNative?: boolean;
-    hlsPreferFfmpeg?: boolean;
-    hlsUseMpegts?: boolean;
-    externalDownloader?: string;
-    externalDownloaderArgs?: string;
-    batchFile?: string;
-    id?: boolean;
-    output?: string;
-    outputNaPlaceholder?: string;
-    autonumberStart?: number;
-    restrictFilenames?: boolean;
-    noOverwrites?: boolean;
-    continue?: boolean;
-    noPart?: boolean;
-    noMtime?: boolean;
-    writeDescription?: boolean;
-    writeInfoJson?: boolean;
-    writeAnnotations?: boolean;
-    loadInfoJson?: string;
-    cookies?: string;
-    cacheDir?: string;
-    noCacheDir?: boolean;
-    rmCacheDir?: boolean;
-    writeThumbnail?: boolean;
-    writeAllThumbnails?: boolean;
-    listThumbnails?: boolean;
-    quiet?: boolean;
-    noWarnings?: boolean;
-    simulate?: boolean;
-    skipDownload?: boolean;
-    getUrl?: boolean;
-    getTitle?: boolean;
-    getId?: boolean;
-    getThumbnail?: boolean;
-    getDuration?: boolean;
-    getFilename?: boolean;
-    getFormat?: boolean;
-    dumpJson?: boolean;
-    dumpSingleJson?: boolean;
-    printJson?: boolean;
-    newline?: boolean;
-    noProgress?: boolean;
-    consoleTitle?: boolean;
-    verbose?: boolean;
-    dumpPages?: boolean;
-    writePages?: boolean;
-    printTraffic?: boolean;
-    callHome?: boolean;
-    encoding?: string;
-    noCheckCertificate?: boolean;
-    preferInsecure?: boolean;
-    userAgent?: string;
-    referer?: string;
-    addHeader?: string;
-    bidiWorkaround?: boolean;
-    sleepInterval?: number;
-    maxSleepInterval?: number;
-    format?: string;
-    allFormats?: boolean;
-    preferFreeFormats?: boolean;
-    listFormats?: boolean;
-    youtubeSkipDashManifest?: boolean;
-    mergeOutputFormat?: string;
-    writeSub?: boolean;
-    writeAutoSub?: boolean;
-    allSubs?: boolean;
-    listSubs?: boolean;
-    subFormat?: string;
-    subLang?: string;
-    username?: string;
-    password?: string;
-    twofactor?: string;
-    netrc?: boolean;
-    videoPassword?: string;
-    apMso?: string;
-    apUsername?: string;
-    apPassword?: string;
-    apListMso?: boolean;
-    extractAudio?: boolean;
-    audioFormat?: string;
-    audioQuality?: number;
-    recodeVideo?: string;
-    postprocessorArgs?: string;
-    keepVideo?: boolean;
-    noPostOverwrites?: boolean;
-    embedSubs?: boolean;
-    embedThumbnail?: boolean;
-    addMetadata?: boolean;
-    metadataFromFile?: string;
-    xattrs?: boolean;
-    fixup?: string;
-    preferAvconv?: boolean;
-    preferFfmpeg?: boolean;
-    ffmpegLocation?: string;
-    exec?: string;
-    convertSubs?: string;
-}
-
-interface YtdlFormat {
-    asr: number;
-    filesize: number;
-    format_id: string;
-    format_note: string;
-    fps: number;
-    height: number;
-    quality: number;
-    tbr: number;
-    url: string;
-    width: number;
-    ext: string;
-    vcodec: string;
-    acodec: string;
-    abr: number;
-    downloader_options: unknown;
-    container: string;
-    format: string;
-    protocol: string;
-    http_headers: unknown;
-}
-
-interface YtdlThumbnail {
-    height: number;
-    url: string;
-    width: number;
-    resolution: string;
-    id: string;
-}
-
-interface YtdlEntry {
-    uploader: string;
-    duration: number;
-    id: string;
-    title: string;
-    url: string;
-}
-
-export interface YtdlResponse {
-    id: string;
-    title: string;
-    formats: YtdlFormat[];
-    thumbnails: YtdlThumbnail[];
-    description: string;
-    upload_date: string;
-    uploader: string;
-    uploader_id: string;
-    uploader_url: string;
-    channel_id: string;
-    channel_url: string;
-    duration: number;
-    view_count: number;
-    average_rating: number;
-    age_limit: number;
-    webpage_url: string;
-    categories: string[];
-    tags: string[];
-    is_live: boolean;
-    like_count: number;
-    dislike_count: number;
-    channel: string;
-    track: string;
-    artist: string;
-    creator: string;
-    alt_title: string;
-    extractor: string;
-    webpage_url_basename: string;
-    extractor_key: string;
-    playlist: string;
-    playlist_index: number;
-    thumbnail: string;
-    display_id: string;
-    requested_subtitles: unknown;
-    asr: number;
-    filesize: number;
-    format_id: string;
-    format_note: string;
-    fps: number;
-    height: number;
-    quality: number;
-    tbr: number;
-    url: string;
-    width: number;
-    ext: string;
-    vcodec: string;
-    acodec: string;
-    abr: number;
-    downloader_options: { http_chunk_size: number };
-    container: string;
-    format: string;
-    protocol: string;
-    http_headers: unknown;
-    fulltitle: string;
-    _filename: string;
-    entries: YtdlEntry[];
-}

src/modules/music/module.ts

@@ -1,15 +0,0 @@
-import path from "path";
-import { fileURLToPath } from "url";
-
-import Music from "./lib/music.js";
-
-const name = "music";
-const description = "Music module";
-const author = "unknowableshade";
-const tag = "2.0.0";
-
-const controller = new Music();
-
-const rootDir = path.dirname(fileURLToPath(import.meta.url));
-
-export { author, controller, description, name, rootDir, tag };

src/modules/server/commands/auto.ts

@@ -1,90 +0,0 @@
-import { Events, Interaction, PermissionFlagsBits, SlashCommandBuilder } from "discord.js";
-
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
-import replies from "../lib/replies.js";
-
-async function execute(client: Client, interaction: Interaction): Promise<void> {
-    if (!interaction.isChatInputCommand() || !interaction.inCachedGuild()) {
-        logger.warn("Interaction rejected.", { interaction });
-
-        return;
-    }
-
-    const subcommand = interaction.options.getSubcommand();
-    const event = interaction.options.getString("event", true);
-
-    switch (subcommand) {
-        case "role": {
-            const role = interaction.options.getRole("role", true);
-
-            await interaction.deferReply();
-
-            try {
-                await client.db.event.upsert({
-                    where: {
-                        eventIdentifier: {
-                            title: event,
-                            action: subcommand,
-                            guildId: interaction.guildId
-                        }
-                    },
-                    update: { metadata: [role.id] },
-                    create: {
-                        Guild: {
-                            connectOrCreate: {
-                                where: {
-                                    id: interaction.guildId
-                                },
-                                create: {
-                                    id: interaction.guildId
-                                }
-                            }
-                        },
-                        title: event,
-                        action: subcommand,
-                        metadata: [role.id]
-                    }
-                });
-
-                await interaction.editReply(replies.auto("add role to a member", event));
-            } catch (error) {
-                logger.error("Error occured while quering db.", { interaction });
-            } finally {
-                await client.db.$disconnect();
-            }
-
-            return;
-        }
-    }
-}
-
-const AUTO_EVENT_CHOICES = [
-    {
-        name: "Member Joins",
-        value: Events.GuildMemberAdd
-    }
-];
-
-const data = new SlashCommandBuilder()
-    .setName("auto")
-    .setDescription("Quetza's automatization engine.")
-    .addSubcommand((subcommand) =>
-        subcommand
-            .setName("role")
-            .setDescription("Auto: give role.")
-            .addStringOption((option) =>
-                option
-                    .setName("event")
-                    .setDescription("Event when perfome an action.")
-                    .setChoices(...AUTO_EVENT_CHOICES)
-                    .setRequired(true)
-            )
-            .addRoleOption((option) =>
-                option.setName("role").setDescription("Role to grant on event.").setRequired(true)
-            )
-    )
-    .setDefaultMemberPermissions(PermissionFlagsBits.Administrator)
-    .setDMPermission(false);
-
-export { data, execute };

src/modules/server/commands/role.ts

@@ -1,98 +0,0 @@
-import { Interaction, PermissionFlagsBits, SlashCommandBuilder } from "discord.js";
-
-import Client from "../../../lib/client.js";
-import logger from "../../../lib/logger.js";
-import replies from "../lib/replies.js";
-
-async function execute(client: Client, interaction: Interaction): Promise<void> {
-    if (!interaction.isChatInputCommand() || !interaction.inCachedGuild()) {
-        logger.warn("Interaction rejected.", { interaction });
-
-        return;
-    }
-
-    const subcommand = interaction.options.getSubcommand();
-
-    switch (subcommand) {
-        case "check": {
-            const user = interaction.options.getUser("member", true);
-
-            const member = await interaction.guild.members.fetch(user).catch(() => undefined);
-
-            if (member) {
-                await interaction.reply(replies.roleList(user.tag, member.roles.cache));
-            } else {
-                await interaction.reply(replies.notMember("edited", user));
-            }
-
-            return;
-        }
-
-        case "edit": {
-            const user = interaction.options.getUser("member", true);
-            const role = interaction.options.getRole("role", true);
-            const reason = interaction.options.getString("reason") ?? undefined;
-
-            const member = await interaction.guild.members.fetch(user).catch(() => undefined);
-
-            if (member) {
-                if (member.roles.cache.some((memberRole) => role.id === memberRole.id)) {
-                    await member.roles.remove(role.id, reason);
-                    await interaction.reply(
-                        replies.roleAction("revoked from", interaction.user, role.name, reason)
-                    );
-                } else {
-                    await member.roles.add(role.id, reason);
-                    await interaction.reply(
-                        replies.roleAction("granted to", interaction.user, role.name, reason)
-                    );
-                }
-            } else {
-                await interaction.reply(replies.notMember("edited", user));
-            }
-
-            return;
-        }
-
-        case "list": {
-            const roles = await interaction.guild.roles.fetch();
-
-            await interaction.reply(replies.roleList(interaction.guild.name, roles));
-
-            return;
-        }
-    }
-}
-
-const data = new SlashCommandBuilder()
-    .setName("role")
-    .setDescription("Quetza's role manager.")
-    .addSubcommand((subcommand) =>
-        subcommand.setName("list").setDescription("Role: list guild's roles.")
-    )
-    .addSubcommand((subcommand) =>
-        subcommand
-            .setName("check")
-            .setDescription("Role: check user roles.")
-            .addUserOption((option) =>
-                option.setName("member").setDescription("Member to check.").setRequired(true)
-            )
-    )
-    .addSubcommand((subcommand) =>
-        subcommand
-            .setName("edit")
-            .setDescription("Role: edit role for a specific user.")
-            .addUserOption((option) =>
-                option.setName("member").setDescription("Member to edit.").setRequired(true)
-            )
-            .addRoleOption((option) =>
-                option.setName("role").setDescription("Member's role to edit.").setRequired(true)
-            )
-            .addStringOption((option) =>
-                option.setName("reason").setDescription("Reason for an action.")
-            )
-    )
-    .setDefaultMemberPermissions(PermissionFlagsBits.ManageRoles)
-    .setDMPermission(false);
-
-export { data, execute };

src/modules/server/events/guild-member-add.ts

@@ -1,23 +0,0 @@
-import { Events, GuildMember } from "discord.js";
-
-import Client from "../../../lib/client.js";
-
-async function execute(client: Client, eventee: [GuildMember]): Promise<void> {
-    const [member] = eventee;
-
-    try {
-        const event = await client.db.event.findFirst({
-            where: { guildId: member.guild.id, title: name }
-        });
-
-        if (event) {
-            await member.roles.add(event.metadata as string[]);
-        }
-    } finally {
-        await client.db.$disconnect();
-    }
-}
-
-const name = Events.GuildMemberAdd;
-
-export { execute, name };

src/modules/server/lib/replies.ts

@@ -1,80 +0,0 @@
-import {
-    BaseMessageOptions,
-    bold,
-    Collection,
-    EmbedBuilder,
-    InteractionReplyOptions,
-    italic,
-    Role,
-    underscore,
-    User
-} from "discord.js";
-
-import config from "../../../config.js";
-
-const replies = {
-    error: (): InteractionReplyOptions => {
-        const embed = new EmbedBuilder()
-            .setColor(config.colors.error)
-            .setTitle("Internal error occured while resolving interaction.")
-            .setDescription("Submit an issue (bio). Logs were saved.")
-            .setTimestamp();
-
-        return { embeds: [embed], ephemeral: true };
-    },
-    notMember: (action: string, user: User): InteractionReplyOptions => {
-        const embed = new EmbedBuilder()
-            .setColor("Blue")
-            .setTitle(`${user.tag} cannot be ${action}`)
-            .setDescription("They're not a guild member.")
-            .setTimestamp();
-
-        return { embeds: [embed], ephemeral: true };
-    },
-    roleAction: (
-        action: string,
-        user: User,
-        roleName: string,
-        reason?: string
-    ): InteractionReplyOptions => {
-        const embed = new EmbedBuilder()
-            .setColor(config.colors.success)
-            .setTitle(`Role ${roleName} was ${action} user ${user.tag}`)
-            .setDescription(reason ?? "No reason provided.")
-            .setTimestamp();
-
-        return { embeds: [embed], ephemeral: true };
-    },
-    roleList: (observed: string, roles: Collection<string, Role>): InteractionReplyOptions => {
-        const embed = new EmbedBuilder()
-            .setColor(config.colors.success)
-            .setTitle(`${observed} roles:`)
-            .addFields(
-                roles.map((role) => {
-                    return {
-                        name: role.name,
-                        value: italic(role.id)
-                    };
-                })
-            )
-            .setTimestamp();
-
-        return { embeds: [embed], ephemeral: true };
-    },
-    auto: (action: string, event: string): BaseMessageOptions => {
-        const embed = new EmbedBuilder()
-            .setColor(config.colors.success)
-            .setTitle(
-                bold(
-                    `From now I will ${underscore(italic(action))} when ${underscore(
-                        italic(event)
-                    )} event happens`
-                )
-            )
-            .setTimestamp();
-
-        return { embeds: [embed] };
-    }
-};
-
-export default replies;

src/modules/server/module.ts

@@ -1,11 +0,0 @@
-import path from "path";
-import { fileURLToPath } from "url";
-
-const name = "server";
-const description = "Server utilities module";
-const author = "unknowableshade";
-const tag = "0.0.1";
-
-const rootDir = path.dirname(fileURLToPath(import.meta.url));
-
-export { author, description, name, rootDir, tag };

src/tsconfig.json

@@ -0,0 +1,15 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "paths": {
+      "$config.js": ["../config.js"],
+      "$lib/*": ["./lib/*"]
+    },
+
+    "rootDir": ".",
+    "outDir": "../dist/src",
+
+    "composite": true
+  },
+  "references": [{ "path": "../config.tsconfig.json" }]
+}

tsconfig.json

@@ -2,18 +2,24 @@
   "compilerOptions": {
     "strict": true,
 
-    "module": "ESNext",
+    "module": "NodeNext",
-    "moduleResolution": "node",
+    "moduleResolution": "NodeNext",
-    "outDir": "dist",
+    "resolveJsonModule": true,
-    "removeComments": false,
-    "sourceMap": true,
-    "esModuleInterop": true,
-
-    "target": "ESNext",
-    "lib": ["ESNext"],
     "types": ["node"],
+
+    "outDir": "./dist",
+    "sourceMap": true,
+
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+
+    "target": "ES2022",
+
     "skipLibCheck": true
   },
-  "include": ["src/**/*"],
+  "references": [
-  "exclude": ["node_modules", "dist", "src/commands", "src/events"]
+    { "path": "./modules/core" },
+    { "path": "./modules/music" },
+    { "path": "./modules/ai" }
+  ]
 }