Initial commit: deardiary project setup

backend/src/services/ai/provider.ts

@@ -0,0 +1,32 @@
+export interface AIProvider {
+  provider: 'openai' | 'anthropic' | 'ollama' | 'lmstudio';
+  generate(prompt: string, systemPrompt?: string): Promise<string>;
+  validate?(): Promise<boolean>;
+}
+
+export interface AIProviderConfig {
+  provider: 'openai' | 'anthropic' | 'ollama' | 'lmstudio';
+  apiKey: string;
+  model?: string;
+  baseUrl?: string;
+}
+
+import { OpenAIProvider } from './openai';
+import { AnthropicProvider } from './anthropic';
+import { OllamaProvider } from './ollama';
+import { LMStudioProvider } from './lmstudio';
+
+export function createAIProvider(config: AIProviderConfig): AIProvider {
+  switch (config.provider) {
+    case 'openai':
+      return new OpenAIProvider(config);
+    case 'anthropic':
+      return new AnthropicProvider(config);
+    case 'ollama':
+      return new OllamaProvider(config);
+    case 'lmstudio':
+      return new LMStudioProvider(config);
+    default:
+      throw new Error(`Unknown AI provider: ${config.provider}`);
+  }
+}