feat: add interactive config setup and baseURL support

src/config/index.ts

@@ -1,11 +1,55 @@
 import os from "node:os";
+import { autocomplete, intro, isCancel, outro, text } from "@clack/prompts";
 import chalk from "chalk";
 
 const home = os.homedir();
 const configFile = Bun.file(`${home}/.lmc_config.json`);
 
 export interface AppConfig {
-  model?: string;
+  baseURL: string;
+  model: string;
+}
+
+export async function initConfig(old?: AppConfig): Promise<AppConfig> {
+  intro(chalk.blue("Welcome to LMC. Let's make a new config!"));
+  const baseURL = await text({
+    message: "What's your base URL:",
+    initialValue: old?.baseURL,
+    defaultValue: "http://127.0.0.1:8080/v1",
+    placeholder: "http://127.0.0.1:8080/v1",
+  });
+  if (isCancel(baseURL)) process.exit(1);
+
+  const models = await getModels(baseURL);
+  const model = await autocomplete({
+    message: "Choose a default model:",
+    initialValue: old?.model,
+    placeholder: old?.model,
+    options: models,
+  });
+  if (isCancel(model)) process.exit(1);
+
+  const config = { baseURL, model } satisfies AppConfig;
+
+  await configFile.write(JSON.stringify(config, null, "  "));
+  outro(chalk.green("Configuration saved!"));
+
+  return config;
+}
+
+type Models = {
+  data: {
+    created: number;
+    id: string;
+    object: "model";
+    owned_by: string;
+  }[];
+};
+
+async function getModels(url: string) {
+  const response = await fetch(`${url}/models`);
+  const models = (await response.json()) as Models;
+  return models.data.map((model) => ({ value: model.id }));
 }
 
 export async function loadConfig(): Promise<AppConfig> {
@@ -13,12 +57,7 @@ export async function loadConfig(): Promise<AppConfig> {
   try {
     config = await configFile.json();
   } catch {
-    config = {};
+    config = await initConfig();
   }
   return config;
 }
-
-export async function saveConfig(config: AppConfig): Promise<void> {
-  await configFile.write(JSON.stringify(config, null, "  "));
-  console.log(chalk.green("Configuration saved!"));
-}