feat: Add AI module

ollama based ai module for more bot entertaiment

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;
+        }
+    }
+}