import { createRoute, OpenAPIHono } from '@hono/zod-openapi';
import { z } from '@hono/zod-openapi';
import { GoodsSchema } from '@/server/modules/goods/goods.schema';
import { ErrorSchema } from '@/server/utils/errorHandler';
import { AppDataSource } from '@/server/data-source';
import { Goods } from '@/server/modules/goods/goods.entity';
import { AuthContext } from '@/server/types/context';
import { authMiddleware } from '@/server/middleware/auth.middleware';
import { RandomGoodsQuerySchema, RandomGoodsResponseSchema } from '@/server/modules/goods/schemas/random.schema';
import { parseWithAwait } from '@/server/utils/parseWithAwait';

// 定义随机商品列表路由
const routeDef = createRoute({
  method: 'get',
  path: '/',
  middleware: [authMiddleware],
  request: {
    query: RandomGoodsQuerySchema
  },
  responses: {
    200: {
      description: '成功获取随机商品列表',
      content: {
        'application/json': {
          schema: RandomGoodsResponseSchema
        }
      }
    },
    400: {
      description: '请求参数错误',
      content: {
        'application/json': {
          schema: ErrorSchema
        }
      }
    },
    500: {
      description: '服务器错误',
      content: {
        'application/json': {
          schema: ErrorSchema
        }
      }
    }
  }
});

// 路由实现
const app = new OpenAPIHono<AuthContext>().openapi(routeDef, async (c) => {
  try {
    const query = c.req.valid('query');
    const { limit, categoryId, includeImages } = query;

    // 创建查询构建器
    const queryBuilder = AppDataSource.getRepository(Goods)
      .createQueryBuilder('goods')
      .where('goods.state = :state', { state: 1 }) // 只获取可用的商品
      .orderBy('RAND()') // 使用随机排序
      .limit(limit);

    // 如果指定了分类ID，添加分类过滤
    if (categoryId) {
      queryBuilder.andWhere(
        'goods.category_id1 = :categoryId OR goods.category_id2 = :categoryId OR goods.category_id3 = :categoryId',
        { categoryId }
      );
    }

    // 如果需要包含关联数据
    if (includeImages) {
      queryBuilder
        .leftJoinAndSelect('goods.imageFile', 'imageFile')
        .leftJoinAndSelect('imageFile.uploadUser', 'imageUploadUser')
        .leftJoinAndSelect('goods.category1', 'category1')
        .leftJoinAndSelect('goods.category2', 'category2')
        .leftJoinAndSelect('goods.category3', 'category3')
        .leftJoinAndSelect('goods.supplier', 'supplier');
    }

    // 获取随机商品
    const goods = await queryBuilder.getMany();

    // 获取总数（用于分页参考）
    const totalQuery = AppDataSource.getRepository(Goods)
      .createQueryBuilder('goods')
      .where('goods.state = :state', { state: 1 });

    if (categoryId) {
      totalQuery.andWhere(
        'goods.category_id1 = :categoryId OR goods.category_id2 = :categoryId OR goods.category_id3 = :categoryId',
        { categoryId }
      );
    }

    const total = await totalQuery.getCount();

    // 使用 parseWithAwait 确保数据格式正确
    const validatedGoods = await parseWithAwait(z.array(GoodsSchema), goods);

    return c.json({
      data: validatedGoods,
      total
    }, 200);
  } catch (error) {
    console.error('获取随机商品列表失败:', error);
    return c.json({
      code: 500,
      message: error instanceof Error ? error.message : '获取随机商品列表失败'
    }, 500);
  }
});

export default app;