import { Request, Response } from 'express';
import { stockService } from '../services/stockService';
import { asyncHandler, NotFoundError, BadRequestError } from '../middleware/errorHandler';
import { ApiResponse } from '../types';
import { searchKeywordSchema, periodSchema } from '../utils/validator';

export const stockController = {
  // 搜索股票
  search: asyncHandler(async (req: Request, res: Response) => {
    const { keyword, type } = req.query;
    
    if (!keyword || typeof keyword !== 'string') {
      throw new BadRequestError('搜索关键词不能为空');
    }
    
    const validatedKeyword = searchKeywordSchema.parse(keyword);
    
    let sectors: any[] = [];
    let stocks: any[] = [];
    
    if (!type || type === 'all' || type === 'sector') {
      sectors = await stockService.searchSectors(validatedKeyword);
    }
    
    if (!type || type === 'all' || type === 'stock') {
      stocks = await stockService.searchStocks(validatedKeyword);
    }
    
    const response: ApiResponse = {
      code: 200,
      message: 'success',
      data: {
        sectors,
        stocks,
      },
    };
    
    res.json(response);
  }),

  // 获取股票详情
  getStockDetail: asyncHandler(async (req: Request, res: Response) => {
    const { stock_code } = req.params;
    
    const stock = await stockService.getStockDetail(stock_code);
    
    if (!stock) {
      throw new NotFoundError('股票不存在');
    }
    
    const response: ApiResponse = {
      code: 200,
      message: 'success',
      data: stock,
    };
    
    res.json(response);
  }),

  // 获取股票K线数据
  getStockKLine: asyncHandler(async (req: Request, res: Response) => {
    const { stock_code } = req.params;
    const period = periodSchema.parse(req.query.period || 'day');
    const days = parseInt(req.query.days as string) || 60;
    
    const klines = await stockService.getKLineData(stock_code, period, days);
    
    const response: ApiResponse = {
      code: 200,
      message: 'success',
      data: klines,
    };
    
    res.json(response);
  }),

  // 获取新高股票
  getNewHighStocks: asyncHandler(async (req: Request, res: Response) => {
    const days = parseInt(req.query.days as string) || 20;
    const limit = parseInt(req.query.limit as string) || 20;
    
    const stocks = await stockService.getNewHighStocks(days, limit);
    
    const response: ApiResponse = {
      code: 200,
      message: 'success',
      data: stocks,
    };
    
    res.json(response);
  }),

  // 获取新低股票
  getNewLowStocks: asyncHandler(async (req: Request, res: Response) => {
    const days = parseInt(req.query.days as string) || 20;
    const limit = parseInt(req.query.limit as string) || 20;
    
    const stocks = await stockService.getNewLowStocks(days, limit);
    
    const response: ApiResponse = {
      code: 200,
      message: 'success',
      data: stocks,
    };
    
    res.json(response);
  }),

  // 获取动量股推荐
  getMomentumRecommendation: asyncHandler(async (req: Request, res: Response) => {
    const limit = parseInt(req.query.limit as string) || 15;
    
    const stocks = await stockService.getMomentumStocks(limit);
    
    const response: ApiResponse = {
      code: 200,
      message: 'success',
      data: stocks,
    };
    
    res.json(response);
  }),
};