feat(vscode-lm): implement VS Code Language Models provider

src/api/index.ts

@@ -10,41 +10,45 @@ import { LmStudioHandler } from "./providers/lmstudio"
 import { GeminiHandler } from "./providers/gemini"
 import { OpenAiNativeHandler } from "./providers/openai-native"
 import { DeepSeekHandler } from "./providers/deepseek"
+import { VsCodeLmHandler } from "./providers/vscode-lm"
 import { ApiStream } from "./transform/stream"
 
 export interface SingleCompletionHandler {
-	completePrompt(prompt: string): Promise<string>
+  completePrompt(prompt: string): Promise<string>
 }
 
 export interface ApiHandler {
-	createMessage(systemPrompt: string, messages: Anthropic.Messages.MessageParam[]): ApiStream
-	getModel(): { id: string; info: ModelInfo }
+  createMessage(systemPrompt: string, messages: Anthropic.Messages.MessageParam[]): ApiStream
+  getModel(): { id: string; info: ModelInfo }
 }
 
 export function buildApiHandler(configuration: ApiConfiguration): ApiHandler {
-	const { apiProvider, ...options } = configuration
-	switch (apiProvider) {
-		case "anthropic":
-			return new AnthropicHandler(options)
-		case "openrouter":
-			return new OpenRouterHandler(options)
-		case "bedrock":
-			return new AwsBedrockHandler(options)
-		case "vertex":
-			return new VertexHandler(options)
-		case "openai":
-			return new OpenAiHandler(options)
-		case "ollama":
-			return new OllamaHandler(options)
-		case "lmstudio":
-			return new LmStudioHandler(options)
-		case "gemini":
-			return new GeminiHandler(options)
-		case "openai-native":
-			return new OpenAiNativeHandler(options)
-		case "deepseek":
-			return new DeepSeekHandler(options)
-		default:
-			return new AnthropicHandler(options)
-	}
+  const { apiProvider, ...options } = configuration
+
+  switch (apiProvider) {
+    case "anthropic":
+      return new AnthropicHandler(options)
+    case "openrouter":
+      return new OpenRouterHandler(options)
+    case "bedrock":
+      return new AwsBedrockHandler(options)
+    case "vertex":
+      return new VertexHandler(options)
+    case "openai":
+      return new OpenAiHandler(options)
+    case "ollama":
+      return new OllamaHandler(options)
+    case "lmstudio":
+      return new LmStudioHandler(options)
+    case "gemini":
+      return new GeminiHandler(options)
+    case "openai-native":
+      return new OpenAiNativeHandler(options)
+    case "deepseek":
+      return new DeepSeekHandler(options)
+    case "vscode-lm":
+      return new VsCodeLmHandler(options)
+    default:
+      return new AnthropicHandler(options)
+  }
 }