import 'dart:io';

import 'package:relic/relic.dart';

import 'config/config.dart';
import 'src/auth/auth_middleware.dart';
import 'src/gateway/gateway_handlers.dart';
import 'src/handlers/auth_handlers.dart';
import 'src/handlers/channel_handlers.dart';
import 'src/handlers/dev_db_handlers.dart';
import 'src/handlers/message_handlers.dart';
import 'src/handlers/public_handlers.dart';
import 'src/handlers/settings_handlers.dart';
import 'src/handlers/upload_handlers.dart';
import 'src/state/app_state.dart';

RelicApp? _currentApp;

Future<void> startServer() async {
  await _currentApp?.close();

  _currentApp = RelicApp()
    // ============ PUBLIC ENDPOINTS (no auth) ============

    // Auth
    ..post('/auth/register', registerHandler)
    ..post('/auth/login', loginHandler)
    ..post('/auth/join', joinServerHandler)

    // Public identity verification (for cross-server)
    ..get('/.well-known/users/:username', publicUserHandler)
    ..get('/.well-known/verify/:userId', publicVerifyHandler)
    ..get('/.well-known/server', publicServerInfoHandler)
    ..get('/uploads/:fileName', getUploadFileHandler)
    ..get('/attachments/:attachmentId', getAttachmentHandler)
    ..get('/avatars/:userId', getAvatarAliasHandler)
    ..get('/icons/:serverId', getServerIconAliasHandler)
    ..get('/banners/:serverId', getServerBannerAliasHandler)
    ..get('/gateway', gatewayHandler)

    // ============ PROTECTED ENDPOINTS (requires auth) ============
    ..use('/api', jwtMiddleware)

    // Current user
    ..get('/api/me', getMeHandler)
    ..patch('/api/me', updateProfileHandler)
    ..put('/api/me/avatar', setAvatarHandler)

    // Server settings
    ..get('/api/server/settings', getServerSettingsHandler)
    ..patch('/api/server/settings', patchServerSettingsHandler)
    ..put('/api/server/icon', setServerIconHandler)
    ..put('/api/server/banner', setServerBannerHandler)

    // Dev DB tools (testing only, admin only, requires config flag)
    ..get('/api/dev/db/snapshot', getDevDbSnapshotHandler)
    ..post('/api/dev/db/reset', resetDevDbHandler)
    ..post('/api/dev/users/promote-admin', promoteUserToAdminHandler)
    ..post('/api/dev/users/demote-admin', demoteUserFromAdminHandler)

    // Channels
    ..get('/api/channels', getChannelsHandler)
    ..post('/api/channels', createChannelHandler)
    ..get('/api/channels/:channelId', getChannelHandler)

    // Messages
    ..get('/api/messages', getMessagesHandler)
    ..get('/api/channels/:channelId/media', getChannelMediaHandler)
    ..post('/api/uploads/init', initUploadHandler)
    ..put('/api/uploads/:uploadId', completeUploadHandler)
    ..post('/api/uploads', uploadFileHandler)
    ..post('/api/messages', sendMessageHandler)
    ..put('/api/messages/:messageId', editMessageHandler)
    ..delete('/api/messages/:messageId', deleteMessageHandler)

    // ============ LOGGING & FALLBACK ============
    ..use('/', logRequests())
    ..fallback = respondWith((_) => Response.notFound());

  print('');
  print('🚀 Server starting...');
  print('Bind: ${'${Config.bindHost}:${Config.bindPort}'.padRight(34)}');
  print('Public URL: ${Config.publicBaseUrl.padRight(26)}');
  print('');

  final bindAddress = InternetAddress.tryParse(Config.bindHost) ?? (await InternetAddress.lookup(Config.bindHost)).first;

  await _currentApp!.serve(
    address: bindAddress,
    port: Config.bindPort,
  );
}

Future<void> stopServer() async {
  await _currentApp?.close();
  _currentApp = null;
}

void main() async {
  Config.initialize();

  initializeStore();

  await startServer();
}