package com.nq.controller;

import com.nq.common.ServerResponse;
import com.nq.service.ExchangeRateService;
import com.nq.service.IStockAiService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import java.math.BigDecimal;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

@Controller
@RequestMapping({"/api/lnk/"})
public class StockInkApiController {

    @Autowired
    IStockAiService stockAiService;
    @Autowired
    ExchangeRateService exchangeRateService;

    private static final ThreadLocal<Boolean> buyOrderCreated = ThreadLocal.withInitial(() -> false);
    private final Lock buyLock = new ReentrantLock();

    /**
     * 获取ai交易产品列表
     * @return
     */
    @RequestMapping("getStockAiList.do")
    @ResponseBody
    public ServerResponse getStockAiList(@RequestParam(value = "pageNum", defaultValue = "1") int pageNum,
                                         @RequestParam(value = "pageSize", defaultValue = "5") int pageSize)   {
        return stockAiService.getStockAiList(pageNum, pageSize);
    }

    /**
     * ai量化交易购买
     * @param id
     * @param buyNum  买入金额
     * @return
     */
    @RequestMapping("buyStockAi.do")
    @ResponseBody
    public ServerResponse buyStockAi(@RequestParam(value = "id") Long id,
                                     @RequestParam(value = "buyNum") BigDecimal buyNum, HttpServletRequest request) {
        if (buyNum.compareTo(BigDecimal.ZERO) <= 0) {
            return ServerResponse.createByErrorMsg("购买金额不能小于0", request);
        }
        buyLock.lock();
        try {
            if (buyOrderCreated.get()) {
                return ServerResponse.createByErrorMsg("当前下单人数过多，请稍后重试", request);
            }
            buyOrderCreated.set(true);
            return stockAiService.buyStockAi(id, buyNum, request);
        } catch (Exception e) {
            e.printStackTrace();
            return ServerResponse.createByErrorMsg("订单异常，请稍后重试", request);
        }  finally{
            buyLock.unlock();
            buyOrderCreated.set(false);
        }
    }

    /**
     * 获取ai交易产品订单列表
     * @param pageNum
     * @param pageSize
     * @param status 状态
     * @param request
     * @return
     */
    @RequestMapping("getStockAiOrderList.do")
    @ResponseBody
    public ServerResponse getStockAiOrderList(@RequestParam(value = "pageNum", defaultValue = "1") int pageNum,
                                              @RequestParam(value = "pageSize", defaultValue = "5") int pageSize,
                                              @RequestParam(value = "status") String status,
                                              HttpServletRequest request)   {
        return stockAiService.getStockAiOrderList(pageNum, pageSize, status ,request);
    }

    //查询汇率信息
    @RequestMapping({"getRateInfo.do"})
    @ResponseBody
    public ServerResponse getInfo() {
        return exchangeRateService.getInfo();
    }
}