import * as path from "path";
import { loadEnv, loadDisclawConfig } from "./config/loader";
import { DisclawDatabase } from "./db/database";
import { startBot } from "./bot";
import { acquireLock } from "./runtime/lockfile";

const ROOT_DIR = path.resolve(__dirname, "..");

async function main(): Promise<void> {
  console.log("DisClaw starting...");

  // 1. Load configuration
  const envConfig = loadEnv(ROOT_DIR);
  const disclawConfig = loadDisclawConfig(ROOT_DIR);
  console.log(
    `Config loaded. Workspaces root: ${disclawConfig.workspaces_root}`
  );

  // 2. Acquire startup lock (before DB init)
  const lockRelease = await acquireLock(
    path.join(disclawConfig.workspaces_root, ".disclaw.lock")
  );

  // 3. Initialize database
  const dbPath = path.join(ROOT_DIR, "data", "disclaw.db");
  const db = new DisclawDatabase(dbPath);
  console.log(`Database initialized at ${dbPath}`);

  // 4. Start Discord bot
  await startBot(envConfig, disclawConfig, db);

  // Graceful shutdown
  const shutdown = (): void => {
    console.log("\nShutting down...");
    db.close();
    lockRelease();
    process.exit(0);
  };

  process.on("SIGINT", shutdown);
  process.on("SIGTERM", shutdown);
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});