import React from 'react';
import StockHeatmap from '@rongmz/react-stock-heatmap';
import '@rongmz/react-stock-heatmap/example/src/index.css';
import toast, { Toaster } from 'react-hot-toast';
import { v4 as uuidv4 } from 'uuid';
import axios from 'axios';
import { Select, Button, Input, Space } from 'tdesign-react';
import { DeleteIcon } from 'tdesign-icons-react';
import 'tdesign-react/es/style/index.css';

import PQueue from 'p-queue';
const queue = new PQueue({ concurrency: 5 });

const {Option} = Select;

function formatTimestamp(timestamp) {
  // 创建一个新的 Date 对象
  const date = new Date(timestamp);

  // 获取小时、分钟和秒
  const hours = date.getHours();
  const minutes = date.getMinutes();
  const seconds = date.getSeconds();

  // 获取毫秒
  const milliseconds = date.getMilliseconds();

  // 将小时、分钟、秒、毫秒格式化为两位数字（除了毫秒可能是三位）
  const formattedHours = hours.toString().padStart(2, '0');
  const formattedMinutes = minutes.toString().padStart(2, '0');
  const formattedSeconds = seconds.toString().padStart(2, '0');
  const formattedMilliseconds = milliseconds.toString().padStart(3, '0');

  // 返回格式化的时间字符串
  return `${formattedHours}:${formattedMinutes}:${formattedSeconds}.${formattedMilliseconds}`;
}

function parseStockData(data) {
  // Extracting values from the input data
  const { asks, bids, last_price, last_qty, total_qty, time, side } = data;

  // Convert asks and bids to the required format
  const processOrders = (orders) => orders.map(([rate, qty]) => ({
    rate: rate,
    orders: 1,  // Assuming each price level has one order
    qty
  }));

  // Calculate additional values
  const high = Math.max(...asks.map(a => a[0]), last_price);
  const low = Math.min(...bids.map(b => b[0]), last_price);
  const open = bids[0][0];  // Assuming the first bid rate as open
  const close = last_price;
  const volume = total_qty; // Total traded volume

  // Calculate average price (simplified as an average of high and low)
  const avgPrice = (high + low) / 2;

  // Construct the final object
  return {
    marketDepth: {
      lastBuyPrice: side === 'buy' ? last_price : 0,
      lastBuyQty: side === 'buy' ? last_qty : 0,
      lastSellPrice: side === 'sell' ? last_price : 0,
      lastSellQty: side === 'sell' ? last_qty : 0,
      priceChangeAmt: last_price - open,  // Simplified price change amount
      priceChangePct: ((last_price - open) / open * 100).toFixed(2),
      lastTradedTS: Date.now(),
      open,
      high,
      low,
      close,
      volume,
      avgPrice,
      buyOrderVolume: bids.reduce((sum, [, qty]) => sum + qty, 0),
      buys: processOrders(bids),
      sellOrderVolume: asks.reduce((sum, [, qty]) => sum + qty, 0),
      sells: processOrders(asks),
      side: side
    },
    ts: formatTimestamp(time),
    time: time,
    tradingsymbol: "XYZ123",
    pendingOrders: []
  };
}

const flushMemoryDbData = async (data, symbol) => {
  // console.log('Invoking flush-memory-db-data', data.length, symbol);
  try {
    await window.electronAPI.flushMemoryDbData(data, symbol);
    // const result = await window.electronAPI.flushMemoryDbData(data, symbol);
    // console.log('Flush successful', result);
  } catch (error) {
    // console.error('Error flushing memory DB data', error);
  }
};

export default () => {
  const [isActivation, setIsActivation] = React.useState(false);
  const [activationCode, setActivationCode] = React.useState();
  const [loginSymbol,setLoginSymbol]= React.useState();
  const [loading, setLoading] = React.useState(true);
  const progressRef = React.useRef(null);
  /** @type {React.MutableRefObject<StockHeatmap>} */
  const heatmapRef = React.useRef(null);
  const [windowDim, setWindowDim] = React.useState([0, 0]);

  const [autoScroll, setAutoScroll] = React.useState(true);
  const toggleAutoScroll = (value) => {
    setAutoScroll(value);
  };

  // 下拉框部分
  const [symbolOptions, setSymbolOptions] = React.useState([]);
  const [editOrCreate, toggleEditOrCreate] = React.useState('edit');

  const [inputSymbol, changeInputSymbol] = React.useState({ });

  const handleClickConfirm = async () => {
    toast.remove()
    if (!inputSymbol.symbol) return toast.error("品种不能为空！")
    if (!inputSymbol.port) return toast.error("端口号不能为空！")

    const options = {...inputSymbol, id: uuidv4()};
    const newOptions = [...symbolOptions, options];
    setSymbolOptions(newOptions);
    changeInputSymbol({symbol:"",port:""});
    toggleEditOrCreate('edit');
    await window.electronAPI.setSymbolData(newOptions)
  };
  const handleDeleteSymbolOption= async (option)=>{
    const newOptions = symbolOptions.filter(item=>item.id !== option.id)
    setSymbolOptions(newOptions)
    if(loginSymbol === option.id) setLoginSymbol(undefined)
    await window.electronAPI.setSymbolData(newOptions)
  }

  // ------------ Load data -------------
  // React.useEffect(() => {
  //   const symbolInfo = symbolOptions.find((item)=> item.id == loginSymbol)
  //   const ws = new WebSocket(`ws://localhost:${symbolInfo.port}`);
  //   let ref = heatmapRef.current
  //
  //   console.log('ws创建完成')
  //   ws.onmessage = function(event) {
  //     const message = JSON.parse(event.data);
  //
  //     let stock = parseStockData(message)
  //
  //     ref.addData(stock)
  //
  //     if (progressRef.current !== null) {
  //       progressRef.current.innerHTML = ` 等待数据推送 ${(100 * ref.data.length / ref.windowLength + 1).toFixed(0)}% ...`
  //
  //       if (ref.data.length >= ref.windowLength) {
  //         setLoading(false)
  //       }
  //     }
  //   };
  //
  //   ws.onerror = function(event) {
  //     console.error("WebSocket error observed:", event);
  //   };
  // }, []);
  const connectWebSocket = ()=>{
    const symbolInfo = symbolOptions.find((item)=> item.id === loginSymbol)
    const ws = new WebSocket(`ws://localhost:${symbolInfo.port}`);
    let ref = heatmapRef.current
    // let prevFlushMemoryDbDataTimestamp = new Date().getTime()

    console.log('ws创建完成')
    ws.onmessage = function(event) {
      const message = JSON.parse(event.data);

      let stock = parseStockData(message)

      ref.addData(stock)

      // 每1秒刷新一次后台的数据
      // let now = new Date().getTime()
      // if (now - 1000 > prevFlushMemoryDbDataTimestamp) {
      //   // 使用 slice 方法提取最后 5000 条数据，保存到本地
      //   const startIndex = Math.max(ref.data.length - 5000, 0);
      //   let saveData = ref.data.slice(startIndex);
      //   queue.add(() => flushMemoryDbData(saveData, symbolInfo.symbol));
      // }

      // 数据推送进度条
      if (progressRef.current !== null) {
        progressRef.current.innerHTML = ` 等待数据推送 ${(100 * ref.data.length / ref.windowLength + 1).toFixed(0)}% ...`

        if (ref.data.length >= ref.windowLength) {
          setLoading(false)
        }
      }
    };

    ws.onerror = function(event) {
      console.error("WebSocket error observed:", event);
    };
  }

  // ------------ Load data -------------
  const checkStatus = async ()=>{
    toast.remove();
    const loginInfo = await window.electronAPI.getLoginInfoData() || {}
    const params = {
      "code": loginInfo.code,
      "machine": loginInfo.machine
    }
    const response = await axios.post('http://139.159.224.218:38888/check_status',params)
    if(response.data.code !== 200){
      if(window.sessionStorage.getItem("_HEATMAP_IS_LOGIN") === "1") toast.error(response.data.msg)
      window.sessionStorage.setItem("_HEATMAP_IS_LOGIN", "0")
      setIsActivation(false)
      return
    }
    setIsActivation(true)
    window.sessionStorage.setItem("_HEATMAP_IS_LOGIN", "1")
  }

  // 保存数据库到本地
  const saveLocalDb = async () => {
    const symbolInfo = symbolOptions.find((item)=> item.id === loginSymbol)
    let ref = heatmapRef.current
    await window.electronAPI.setDbData(ref.data, symbolInfo.symbol)
  }

  // 获取本地的数据库
  const readLocalDb = async () => {
    const symbolInfo = symbolOptions.find((item)=> item.id === loginSymbol)
    let ref = heatmapRef.current
    ref.data = await window.electronAPI.getDbData(symbolInfo.symbol)
  }

  const handleActivation = async ()=>{
    toast.remove();
    const params = {
      "code": activationCode,
      "machine": uuidv4()
    }
    const response = await axios.post('http://139.159.224.218:38888/login', params)
    if(response.data.code === 200){
      await window.electronAPI.setLoginInfoData(params)
      window.sessionStorage.setItem("_HEATMAP_IS_LOGIN", "1")
      toast.success(response.data.msg)
      setInterval(()=>{
        checkStatus()
      },5000)
      setIsActivation(true)
      await readLocalDb()
      connectWebSocket()
      // 每300秒存放一次本地数据
      setInterval(() => {
        saveLocalDb()
      }, 300 * 1000)
    }else{
      toast.error(response.data.msg);
    }
  }

  // ---------- window update ------------
  React.useEffect( async () => {
    // 处理品种选择
    let symbolInfo = await window.electronAPI.getSymbolData();
    if(symbolInfo.length > 0) {
      setSymbolOptions(symbolInfo)
    }
    // 处理是否有登录信息
    let loginInfo = await window.electronAPI.getLoginInfoData() || {};
    if(loginInfo.code) {
      toast.remove();
      try {
        const code = loginInfo.code || ''
        setActivationCode(code || '')
      }catch (err){
        await window.electronAPI.setLoginInfoData({})
        window.sessionStorage.setItem("_HEATMAP_IS_LOGIN", "0")
        return
      }
    }

    const updateFn = () => {
      setWindowDim([
        window.innerWidth,
        window.innerHeight
      ]);
    }
    updateFn();
    window.addEventListener('resize', updateFn);
    return () => window.removeEventListener('resize', updateFn);
  }, []);

  // ---------- window update ------------
  return (
    <div className="wapper">
      <div className={isActivation ? "visibilityVisible" : "visibilityHidden"}>
        <React.Fragment>

          {loading &&
            <div className="loadingIndicator">
              <div className="loadingSpinner">
                <div className="loader">等待数据推送...</div>
              </div>
              <div ref={progressRef}> 等待数据推送 0%</div>
            </div>
          }

          <StockHeatmap ref={heatmapRef} width={windowDim[0]} height={windowDim[1]} autoScroll={autoScroll}
                        toggleAutoScroll={toggleAutoScroll} />

          <div className="btnContainer">
            <button onClick={() => {
              if (heatmapRef.current !== null) heatmapRef.current.setZoomLevel(60)
            }}>1分钟视域
            </button>
            <button onClick={() => {
              if (heatmapRef.current !== null) heatmapRef.current.setZoomLevel(60 * 5)
            }}>5分钟视域
            </button>
            <button onClick={() => {
              if (heatmapRef.current !== null) heatmapRef.current.setZoomLevel(60 * 10)
            }}>10分钟视域
            </button>
            <button onClick={() => {
              if (heatmapRef.current !== null) heatmapRef.current.setZoomLevel(60 * 15)
            }}>15分钟视域
            </button>
            <button onClick={() => {
              if (heatmapRef.current !== null) heatmapRef.current.setZoomLevel(60 * 30)
            }}>30分钟视域
            </button>
            <button onClick={() => {
              if (heatmapRef.current !== null) heatmapRef.current.setZoomLevel(60 * 60)
            }}>60分钟视域
            </button>
            {!autoScroll &&
              <div className="playBtn" onClick={() => {
                setAutoScroll(true)
              }}> 继续
              </div>
            }
            {/* <button onClick={() => { */}
            {/*   const HHmmss = window.prompt('Enter HH:mm:ss', '00:00:00'); */}
            {/*   let split = HHmmss.split(':'); */}
            {/*   let position = (+split[0]-9)*3600 + (+split[1]*60) + (+split[2]); */}
            {/*   if (heatmapRef.current !== null) heatmapRef.current.moveDataWindow(position); */}
            {/*  }}>Set Position</button> */}
          </div>
        </React.Fragment>
      </div>
      {!isActivation &&
        <div className="layoutContainer">
          <div className="activationBox">
            <div className="title">
              软件登录
            </div>
            <div className="iptWp customIpt">
              <Input className="password ipt" placeholder="请输入登录码" type="password" value={activationCode || ''} onChange={(value)=>{setActivationCode(value)}} />
              <Select
                placeholder="请选择品种"
                className="symbol ipt"
                clearable
                value={loginSymbol}
                onChange={(value)=>{setLoginSymbol(value)}}
                panelBottomContent={
                  <div
                    className="select-panel-footer"
                    style={{
                      position: 'sticky',
                      bottom: 0,
                      backgroundColor: 'var(--td-bg-color-container)',
                      zIndex: 2,
                    }}
                  >
                    {editOrCreate === 'edit' ? (
                      <div
                        style={{
                          padding: '8px 6px',
                          borderTop: '1px solid var(--td-border-level-2-color)',
                        }}
                      >
                        <Button theme="primary" size="small" variant="text" onClick={() => toggleEditOrCreate('create')}>
                          新增选项
                        </Button>
                      </div>
                    ) : (
                      <div style={{ padding: 8, borderTop: '1px solid var(--td-border-level-2-color)' }}>
                        <Space>
                          <Input placeholder="请输入品种" size="small" autofocus value={inputSymbol.symbol} onChange={(value) => changeInputSymbol({...inputSymbol,symbol:value})}></Input>
                          <Input placeholder="请输入端口号" size="small" autofocus value={inputSymbol.port} onChange={(value) => changeInputSymbol({...inputSymbol,port:value})}></Input>
                        </Space>
                        <Button size="small" style={{ marginTop: '12px' }} onClick={handleClickConfirm}>
                          确认
                        </Button>
                        <Button
                          theme="default"
                          size="small"
                          style={{ marginTop: '12px', marginLeft: '8px' }}
                          onClick={() => toggleEditOrCreate('edit')}
                        >
                          取消
                        </Button>
                      </div>
                    )}
                  </div>
                }
              >
                {symbolOptions.map((option) => (
                  <Option key={option.id} value={option.id} label={`${option.symbol}:${option.port}`}>
                    <div style={{ display: 'flex', alignItems: 'center' }}>
                      <div style={{ flex:"1",paddingRight:"10px",boxSizing:"border-box" }}>{`${option.symbol}:${option.port}`}</div>
                      <DeleteIcon style={{ width:"16px"}} onClick={(e)=>{
                        e.stopPropagation();
                        handleDeleteSymbolOption(option)
                      }}/>
                    </div>
                  </Option>
                  ))}
              </Select>
            </div>
            <div className="btnWp">
              <div className="btn" onClick={handleActivation}>登 录</div>
            </div>
          </div>
        </div>
      }
      <Toaster className="toasterWp" />
    </div>

  )
}