import Router from '@koa/router';
import { Context } from 'koa';
import * as FavoritesService from './favorites.service';
import { BadRequestError } from '../../middleware/errorHandler';
import { optionalAuth } from '../../middleware/auth';

// 测试用户ID（开发环境使用）
const TEST_USER_ID = '1';

const router = new Router();

// 获取收藏列表
router.get('/', optionalAuth, async (ctx: Context) => {
  // 开发环境使用测试用户ID
  const userId = ctx.state.user?.userId || TEST_USER_ID;

  const favorites = await FavoritesService.getFavorites(userId);

  ctx.body = {
    code: 0,
    message: 'success',
    data: favorites,
  };
});

// 添加收藏
router.post('/', optionalAuth, async (ctx: Context) => {
  // 开发环境使用测试用户ID
  const userId = ctx.state.user?.userId || TEST_USER_ID;
  const body = ctx.request.body as { audioId: number };
  const { audioId } = body;

  if (!audioId) {
    throw new BadRequestError('音频ID不能为空');
  }

  const favorite = await FavoritesService.addFavorite(userId, audioId);

  ctx.body = {
    code: 0,
    message: '收藏成功',
    data: favorite,
  };
});

// 取消收藏
router.delete('/:audioId', optionalAuth, async (ctx: Context) => {
  // 开发环境使用测试用户ID
  const userId = ctx.state.user?.userId || TEST_USER_ID;
  const audioId = parseInt(ctx.params.audioId as string);

  await FavoritesService.removeFavorite(userId, audioId);

  ctx.body = {
    code: 0,
    message: '已取消收藏',
  };
});

// 检查是否已收藏
router.get('/check/:audioId', optionalAuth, async (ctx: Context) => {
  // 开发环境使用测试用户ID
  const userId = ctx.state.user?.userId || TEST_USER_ID;
  const audioId = parseInt(ctx.params.audioId as string);

  const isFavorited = await FavoritesService.isFavorited(userId, audioId);

  ctx.body = {
    code: 0,
    message: 'success',
    data: { isFavorited },
  };
});

export default router;
