/**
 * Joel Discord Bot - Main Entry Point
 *
 * A well-structured Discord bot with clear separation of concerns:
 * - core/      - Bot client, configuration, logging
 * - commands/  - Slash command definitions and handling
 * - events/    - Discord event handlers
 * - features/  - Feature modules (Joel AI, message logging, etc.)
 * - services/  - External services (AI providers)
 * - database/  - Database schema and repositories
 * - utils/     - Shared utilities
 */

import { GatewayIntentBits } from "discord.js";
import { BotClient } from "./core/client";
import { config } from "./core/config";
import { createLogger } from "./core/logger";
import { registerEvents } from "./events";
import { logVoiceDependencyHealth, stopSpontaneousMentionsCron } from "./features/joel";
import { buildWebCss, startWebCssWatcher, startWebServer } from "./web";
import { runMigrations } from "./database/migrate";
import type { FSWatcher } from "fs";

const logger = createLogger("Main");
let webCssWatcher: FSWatcher | null = null;
const isProduction = Bun.env.NODE_ENV === "production";

// Create the Discord client with required intents
const client = new BotClient({
  intents: [
    GatewayIntentBits.MessageContent,
    GatewayIntentBits.Guilds,
    GatewayIntentBits.DirectMessages,
    GatewayIntentBits.GuildMessages,
    GatewayIntentBits.GuildModeration,
    GatewayIntentBits.GuildMembers,
    GatewayIntentBits.GuildVoiceStates,
  ],
});

// Register all event handlers
registerEvents(client);

// Start the bot
async function main(): Promise<void> {
  logger.info("Starting Joel bot...");

  try {
    // Run database migrations
    await runMigrations();
    logVoiceDependencyHealth();

    await client.login(config.discord.token);

    // Start web server after bot is logged in
    await buildWebCss();
    if (!isProduction) {
      webCssWatcher = startWebCssWatcher();
    }
    await startWebServer(client);
  } catch (error) {
    logger.error("Failed to start bot", error);
    process.exit(1);
  }
}

// Handle graceful shutdown
process.on("SIGINT", () => {
  logger.info("Shutting down...");
  webCssWatcher?.close();
  stopSpontaneousMentionsCron();
  client.destroy();
  process.exit(0);
});

process.on("SIGTERM", () => {
  logger.info("Shutting down...");
  webCssWatcher?.close();
  stopSpontaneousMentionsCron();
  client.destroy();
  process.exit(0);
});

main();