package com.nq.service.impl;

import cn.hutool.core.date.DateTime;
import cn.hutool.core.date.DateUtil;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.nq.dao.StockDzMapper;
import com.nq.dao.StockMapper;
import com.nq.dao.StockSettingMapper;
import com.nq.enums.EConfigKey;
import com.nq.pojo.*;
import com.nq.service.IPriceServices;
import com.nq.service.IStockConfigServices;
import com.nq.utils.PropertiesUtil;
import com.nq.utils.http.HttpClientRequest;
import com.nq.utils.redis.RedisKeyUtil;
import com.nq.utils.timeutil.TimeUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.io.*;
import java.lang.reflect.Type;
import java.math.BigDecimal;
import  java.io.BufferedReader;
import  java.io.InputStreamReader;
import  java.net.HttpURLConnection;
import  java.net.URL;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import com.fasterxml.jackson.databind.ObjectMapper;

@Service
public class PriceServicesImpl  implements IPriceServices {



    @Resource
    StockSettingMapper stockSettingMapper;


    @Resource
    StockMapper stockMapper;

    @Autowired
    IStockConfigServices iStockConfigServices;

    @Resource
    StockDzMapper stockDZMapper;

    @Override
    public BigDecimal getNowPrice(String stockCode) {
        Stock stock = stockMapper.selectOne(new QueryWrapper<Stock>().eq("stock_code",stockCode));
        if(null == stock){
            return BigDecimal.ZERO;
        }
        StockSetting stockSetting = stockSettingMapper.selectOne(new QueryWrapper<StockSetting>().eq("stock_code",stockCode));
        if(stockSetting != null){
            Date newDate = new Date();
            DateTime startTime = DateUtil.parseDateTime(stockSetting.getStartTime());
            DateTime endTime = DateUtil.parseDateTime(stockSetting.getEndTime());
            if(newDate.after(startTime) && newDate.before(endTime)){
//            if(TimeUtil.isTradingHour(stockSetting.getStartTime(),stockSetting.getEndTime())){
                if(stockSetting.getType().equals("0")){
                    return  new BigDecimal(stockSetting.getPrice());
                }else{
                    String s = doPost(stock.getStockCode());
                    if(null != s){
                        Map<String, Object> stringObjectMap = jsonToMap(s);
                        return   new BigDecimal(stringObjectMap.get("Last").toString()).multiply(new BigDecimal(stockSetting.getPrice()));
                    }
                }
            }
        }

        String s = doPost(stock.getStockCode());
        if(null != s) {
            Map<String, Object> stringObjectMap = jsonToMap(s);
            return  new BigDecimal(stringObjectMap.get("Last").toString());
        }
        return BigDecimal.ZERO;
    }

    @Override
    public Map<String, Object> getNewStock(String stockCode) {
        Stock stock = stockMapper.selectOne(new QueryWrapper<Stock>().eq("stock_code",stockCode));
        String s = doPost(stock.getStockCode());
        if(null != s){
            Map<String, Object> stringObjectMap = jsonToMap(s);
            return   stringObjectMap;
        }
        return null;
    }



    public static Map<String, Object> jsonToMap(String json) {
        ObjectMapper objectMapper = new ObjectMapper();
        try {
            Object[] array = objectMapper.readValue(json, Object[].class);
            Gson gson = new Gson();
            String s = gson.toJson(array[0]);
            Map<String, Object> map = objectMapper.readValue(s, Map.class);
            return map;
        } catch (JsonProcessingException e) {
            throw new RuntimeException(e);
        }
    }

    // 缓存条目类
    private static class CacheEntry {
        String result;
        long lastExecuteTime;

        CacheEntry(String result, long lastExecuteTime) {
            this.result = result;
            this.lastExecuteTime = lastExecuteTime;
        }
    }

    // 按pid存储缓存条目
    private static final Map<String, CacheEntry> cacheMap = new ConcurrentHashMap<>();

    // 按pid存储锁对象，实现细粒度锁
    private static final Map<String, Object> lockMap = new ConcurrentHashMap<>();

    private static final long MIN_INTERVAL_MS = 3000;

    public static String doPost(String pid) {
        long currentTime = System.currentTimeMillis();

        // 1. 快速检查缓存（无锁）
        CacheEntry cached = cacheMap.get(pid);
        if (cached != null && (currentTime - cached.lastExecuteTime) < MIN_INTERVAL_MS) {
            return cached.result;
        }

        // 2. 获取该pid对应的锁对象
        Object pidLock = lockMap.computeIfAbsent(pid, k -> new Object());

        // 3. 同步块内再次检查
        synchronized (pidLock) {
            currentTime = System.currentTimeMillis();
            cached = cacheMap.get(pid);

            if (cached != null && (currentTime - cached.lastExecuteTime) < MIN_INTERVAL_MS) {
                return cached.result;
            }

            // 4. 执行POST请求
            String newResult = doActualPost(pid);

            // 5. 更新该pid的缓存
            if (newResult != null) {
                cacheMap.put(pid, new CacheEntry(newResult, System.currentTimeMillis()));
                return newResult;
            } else if (cached != null) {
                // 请求失败，返回旧缓存
                return cached.result;
            }

            return "{\"error\":\"请求失败且无缓存数据\"}";
        }
    }

    private static String doActualPost(String pid) {
        String apiUrl = PropertiesUtil.getProperty("JS_IN_HTTP_URL") +
                "stock?key=" + PropertiesUtil.getProperty("JS_IN_KEY");

        try {
            URL url = new URL(apiUrl);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            connection.setDoOutput(true);
            connection.setConnectTimeout(5000);
            connection.setReadTimeout(10000);

            String postData = "pid=" + pid;

            try (OutputStream os = connection.getOutputStream()) {
                byte[] input = postData.getBytes("utf-8");
                os.write(input, 0, input.length);
            }

            // 读取响应
            try (BufferedReader in = new BufferedReader(
                    new InputStreamReader(connection.getInputStream()))) {

                StringBuilder response = new StringBuilder();
                String inputLine;
                while ((inputLine = in.readLine()) != null) {
                    response.append(inputLine);
                }

                return response.toString();
            }

        } catch (Exception e) {
            e.printStackTrace();
            // 不再直接返回旧缓存，由上层处理
            return null;
        }
    }

    @Override
    public boolean isLimitUpBuy(String stockCode) {
        Stock stock = stockMapper.selectOne(new QueryWrapper<Stock>().eq("stock_code",stockCode));
        StockRealTimeBean stockRealTimeBean =  RedisKeyUtil.getCacheRealTimeStock(stock);
        BigDecimal pcp = new BigDecimal(stockRealTimeBean.getPcp());
        StockConfig stockConfig = iStockConfigServices.queryByKey(EConfigKey.LIMIT_UP_POINT.getCode());
        if(stockConfig == null){
            return true;
        }


        if(pcp.compareTo(new BigDecimal(0))<0){
            return  true;
        }

        if(new BigDecimal(stockConfig.getCValue()).compareTo(pcp)<=0){
            StockConfig limitConfig = iStockConfigServices.queryByKey(EConfigKey.LIMIT_UP_IS_BUY.getCode());
            if(limitConfig.getCValue().equals("1")){
                return  true;
            }
            return false;
        }
        return true;
    }

    @Override
    public boolean isLimitDownSell(String stockCode) {
        Stock stock = stockMapper.selectOne(new QueryWrapper<Stock>().eq("stock_code",stockCode));
        StockRealTimeBean stockRealTimeBean =  RedisKeyUtil.getCacheRealTimeStock(stock);
        BigDecimal pcp = new BigDecimal(stockRealTimeBean.getPcp());
        StockConfig stockConfig = iStockConfigServices.queryByKey(EConfigKey.LIMIT_DOWN_POINT.getCode());
        if(stockConfig == null){
            return true;
        }
        if(pcp.compareTo(new BigDecimal(stockConfig.getCValue()))<=0){
            StockConfig limitConfig = iStockConfigServices.queryByKey(EConfigKey.LIMIT_DOWN_IS_SELL.getCode());
            if(!limitConfig.getCValue().equals("1")){
                return false;
            }
        }
        return true;
    }
}