// HomeContent.js
import React, { useEffect, useRef } from 'react';
import { Row, Col, Icon, Carousel } from 'antd';
import styles from './../fullinter.less';
import echarts from 'echarts';

class HomeContent extends React.Component {
  constructor(props) {
    super(props);
    this.carouselRef = React.createRef();
    this.echartsInstances = {
      riskLevel: null,
      safeCheckChart: null,
      dangerOperation: null,
      backLogChart: null,
    };
    this.chartResizeHandlers = {};
    this.isUnmounted = false;
  }

  waitForElement = (elementId, maxRetries = 10) => {
    return new Promise((resolve) => {
      let retries = 0;
      const checkInterval = setInterval(() => {
        const element = document.getElementById(elementId);
        if (element || retries >= maxRetries) {
          clearInterval(checkInterval);
          resolve(!!element);
        }
        retries++;
      }, 50);
    });
  };

  riskLevel = async () => {
    if (this.isUnmounted) return;
    const elementExists = await this.waitForElement('riskLevelFull');
    if (!elementExists || this.isUnmounted) return;

    if (this.echartsInstances.riskLevel) {
      this.echartsInstances.riskLevel.dispose();
      this.echartsInstances.riskLevel = null;
    }

    const riskLevels = document.getElementById('riskLevelFull');
    if (!riskLevels) return;

    this.echartsInstances.riskLevel = echarts.init(riskLevels);
    const data = this.props.riskTypeRate || [];

    const option = {
      color: ['#c92a2a', '#ffa94d', '#ffe066', '#4285F4'],
      title: [
        {
          text: '风险分级占比',
          x: 'center',
          y: '5%',
          textStyle: { fontSize: 16, color: '#000' },
        },
      ],
      tooltip: {
        trigger: 'item',
        formatter: function (params) {
          const color = params.color;
          return `<div style="display: flex; align-items: center;">
            <span style="display: inline-block; width: 12px; height: 12px; border-radius: 50%; background-color: ${color}; margin-right: 8px;"></span>
            <span>${params.name}:</span>
            <span style="font-weight: bold; margin-left: 8px; font-size: 16px;">${params.value}</span>
          </div>`;
        },
        backgroundColor: 'rgba(255, 255, 255, 0.5)',
        borderColor: '#FFFFFF',
        borderWidth: 2,
        textStyle: { color: '#000', fontSize: 14 },
      },
      series: [
        {
          name: '访问来源',
          type: 'pie',
          minAngle: 20,
          radius: ['55%', '80%'],
          center: ['50%', '50%'],
          clockwise: true,
          avoidLabelOverlap: true,
          hoverOffset: 15,
          label: {
            show: true,
            position: 'inside',
            formatter: '{a|{b}：{c}}{e|({d}%)}\n',
            color: '#000',
            textBorderWidth: 0,
            rich: {
              a: { padding: [-15, 0, 0, 0], fontSize: 15, color: '#000', textBorderWidth: 0 },
              e: { fontSize: 14, color: '#000', padding: [-15, 0, 0, 5], textBorderWidth: 0 },
            },
          },
          labelLine: { normal: { show: false } },
          data: data.map((item) => ({ name: item.riskType, value: item.count })),
        },
      ],
    };

    this.echartsInstances.riskLevel.setOption(option);

    const resizeHandler = () => {
      if (this.echartsInstances.riskLevel && !this.isUnmounted) {
        this.echartsInstances.riskLevel.resize();
      }
    };
    this.chartResizeHandlers.riskLevel = resizeHandler;
    window.addEventListener('resize', resizeHandler);
  };

  transformDat = (originalData, barTopColor, num) => {
    if (!originalData || !Array.isArray(originalData) || originalData.length === 0) {
      return { companyNames: [], series: [], legendData: [] };
    }

    let allTypes = [];
    if (num == 1) {
      allTypes = [...new Set(originalData.flatMap((item) => item.details?.map((detail) => detail.jobName)))];
    } else {
      allTypes = [...new Set(originalData.flatMap((item) => item.details?.map((detail) => detail.name)))];
    }

    allTypes = allTypes.filter(Boolean);
    const companyNames = originalData?.map((item) => item.company);
    const series = allTypes?.map((typeName, index) => ({
      name: typeName,
      type: 'bar',
      itemStyle: {
        normal: {
          color: function (params) {
            if (num == 1) {
              return barTopColor[index];
            } else {
              return new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                { offset: 0, color: barTopColor[index][0] },
                { offset: 1, color: barTopColor[index][1] },
              ]);
            }
          },
        },
      },
      data: originalData?.map((company) => {
        const detail = company.details?.find((d) => (num == 1 ? d.jobName : d.name) === typeName);
        return detail ? detail.qty : 0;
      }),
    }));

    return { companyNames, series, legendData: allTypes };
  };

  safeCheckChart = async () => {
    if (this.isUnmounted) return;
    const elementExists = await this.waitForElement('safeCheckChart');
    if (!elementExists || this.isUnmounted) return;

    if (this.echartsInstances.safeCheckChart) {
      this.echartsInstances.safeCheckChart.dispose();
      this.echartsInstances.safeCheckChart = null;
    }

    let safeCheckCharts = document.getElementById('safeCheckChart');
    if (!safeCheckCharts) return;

    const barTopColor = ['#02c3f1', '#53e568', '#a154e9'];
    const jobData = this.props.jobTodayTop3 || [];

    if (jobData.length === 0) return;

    this.echartsInstances.safeCheckChart = echarts.init(safeCheckCharts);
    let xdata = this.transformDat(jobData, barTopColor, 1);

    this.echartsInstances.safeCheckChart.setOption({
      title: {
        text: '当日工作票排名前三家的数据',
        textStyle: { fontSize: 16, color: '#fff' },
      },
      tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } },
      legend: {
        data: xdata.legendData,
        align: 'right',
        right: 10,
        itemGap: 16,
        itemWidth: 18,
        itemHeight: 10,
        textStyle: { color: '#fff', fontSize: 14 },
      },
      color: barTopColor,
      grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true },
      xAxis: [
        {
          type: 'category',
          data: xdata.companyNames,
          axisLine: { lineStyle: { color: '#3eb2e8' } },
          axisLabel: { textStyle: { color: '#fff' } },
        },
      ],
      yAxis: [
        {
          type: 'value',
          axisLine: { show: false },
          axisLabel: { textStyle: { color: '#fff' } },
          splitLine: { lineStyle: { color: '#4784e8' } },
        },
      ],
      series: xdata.series,
    });

    const resizeHandler = () => {
      if (this.echartsInstances.safeCheckChart && !this.isUnmounted) {
        this.echartsInstances.safeCheckChart.resize();
      }
    };
    this.chartResizeHandlers.safeCheckChart = resizeHandler;
    window.addEventListener('resize', resizeHandler);
  };

  dangerOperation = async () => {
    if (this.isUnmounted) return;
    const elementExists = await this.waitForElement('dangerOperationChart');
    if (!elementExists || this.isUnmounted) return;

    if (this.echartsInstances.dangerOperation) {
      this.echartsInstances.dangerOperation.dispose();
      this.echartsInstances.dangerOperation = null;
    }

    const dangerOperationCharts = document.getElementById('dangerOperationChart');
    if (!dangerOperationCharts) return;

    const linkData = this.props.linkSum || [];
    if (linkData.length === 0) return;

    this.echartsInstances.dangerOperation = echarts.init(dangerOperationCharts);
    const xAxisData = linkData.map((item) => item.name);
    const seriesData = linkData.map((item) => item.qty);

    const option = {
      color: ['#4285F4'],
      title: [
        {
          text: '当日工作票的统计数量',
          x: 'center',
          y: '5%',
          textStyle: { fontSize: 16, color: '#000' },
        },
      ],
      tooltip: {
        trigger: 'axis',
        axisPointer: { type: 'shadow' },
        formatter: function (params) {
          const color = params[0].color;
          return `<div style="display: flex; align-items: center;">
            <span style="display: inline-block; width: 12px; height: 12px; background-color: ${color}; margin-right: 8px;"></span>
            <span>${params[0].name}:</span>
            <span style="font-weight: bold; margin-left: 8px; font-size: 16px;">${params[0].value}</span>
          </div>`;
        },
        backgroundColor: 'rgba(255, 255, 255, 0.5)',
        borderColor: '#FFFFFF',
        borderWidth: 2,
        textStyle: { color: '#000', fontSize: 14 },
      },
      grid: { left: '10%', right: '5%', top: '15%', bottom: '10%', containLabel: true },
      xAxis: [
        {
          type: 'category',
          data: xAxisData,
          axisLine: { lineStyle: { color: '#000' } },
          axisTick: { show: false },
          axisLabel: { textStyle: { color: '#000' }, rotate: 30, interval: 0 },
        },
      ],
      yAxis: [
        {
          type: 'value',
          name: '',
          nameTextStyle: { color: '#000' },
          axisLine: { show: false },
          axisTick: { show: false },
          axisLabel: { textStyle: { color: '#000' } },
          splitLine: { show: false },
        },
      ],
      series: [
        {
          name: '危险作业数量',
          type: 'bar',
          data: seriesData,
          itemStyle: {
            normal: { color: '#4285F4', borderRadius: 12 },
            emphasis: { shadowBlur: 10, shadowOffsetX: 0, shadowColor: 'rgba(0, 0, 0, 0.5)' },
          },
          label: { show: true, position: 'top', textStyle: { color: '#000', fontSize: 12 }, formatter: '{c}' },
          barWidth: '60%',
        },
      ],
    };

    this.echartsInstances.dangerOperation.setOption(option);

    const resizeHandler = () => {
      if (this.echartsInstances.dangerOperation && !this.isUnmounted) {
        this.echartsInstances.dangerOperation.resize();
      }
    };
    this.chartResizeHandlers.dangerOperation = resizeHandler;
    window.addEventListener('resize', resizeHandler);
  };

  backLog = async () => {
    if (this.isUnmounted) return;
    const elementExists = await this.waitForElement('backLogChart');
    if (!elementExists || this.isUnmounted) return;

    if (this.echartsInstances.backLogChart) {
      this.echartsInstances.backLogChart.dispose();
      this.echartsInstances.backLogChart = null;
    }

    let backLogCharts = document.getElementById('backLogChart');
    if (!backLogCharts) return;

    const taskData = this.props.taskTop3 || [];
    if (taskData.length === 0) return;

    const barTopColor = [
      ['#75baf3', '#2177d5'],
      ['#ffa94d', '#f76707'],
      ['#99ca6e', '#48a447'],
    ];

    this.echartsInstances.backLogChart = echarts.init(backLogCharts);
    let xdata = this.transformDat(taskData, barTopColor, 2);
    const legendColors = barTopColor.map((gradient) => gradient[0]);

    this.echartsInstances.backLogChart.setOption({
      title: {
        text: '各事项排名前三名统计',
        x: 'center',
        y: '5%',
        textStyle: { fontSize: 16, color: '#000' },
      },
      tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } },
      legend: {
        data: xdata.legendData.map((name, index) => ({
          name: name,
          itemStyle: { color: legendColors[index], borderWidth: 0 },
          textStyle: { color: '#000', fontSize: 14 },
        })),
        align: 'right',
        top: 10,
        right: 10,
        itemGap: 16,
        itemWidth: 18,
        itemHeight: 12,
      },
      color: legendColors,
      grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true },
      xAxis: [
        {
          type: 'category',
          data: xdata.companyNames,
          axisLine: { lineStyle: { color: '#3eb2e8' } },
          axisLabel: { textStyle: { color: '#000' } },
        },
      ],
      yAxis: [
        {
          type: 'value',
          axisLine: { show: false },
          axisLabel: { textStyle: { color: '#000' } },
          splitLine: { lineStyle: { color: '#4784e8' } },
        },
      ],
      series: xdata.series,
    });

    const resizeHandler = () => {
      if (this.echartsInstances.backLogChart && !this.isUnmounted) {
        this.echartsInstances.backLogChart.resize();
      }
    };
    this.chartResizeHandlers.backLogChart = resizeHandler;
    window.addEventListener('resize', resizeHandler);
  };

  initAllCharts = () => {
    if (this.isUnmounted) return;
    setTimeout(() => {
      if (this.isUnmounted) return;
      this.riskLevel();
      this.safeCheckChart();
      this.dangerOperation();
      this.backLog();
    }, 100);
  };

  disposeAllCharts = () => {
    Object.keys(this.echartsInstances).forEach((key) => {
      if (this.echartsInstances[key]) {
        try {
          this.echartsInstances[key].dispose();
        } catch (e) {
          console.warn(`Dispose chart ${key} error:`, e);
        }
        this.echartsInstances[key] = null;
      }
    });

    Object.keys(this.chartResizeHandlers).forEach((key) => {
      if (this.chartResizeHandlers[key]) {
        window.removeEventListener('resize', this.chartResizeHandlers[key]);
      }
    });
    this.chartResizeHandlers = {};
  };

  handlePrev = () => {
    if (this.carouselRef.current) {
      this.carouselRef.current.prev();
    }
  };

  handleNext = () => {
    if (this.carouselRef.current) {
      this.carouselRef.current.next();
    }
  };

  handleCarouselChange = (current) => {
    this.props.onCarouselChange?.(current);
  };

  handleDotClick = (index) => {
    this.props.onDotClick?.(index);
    if (this.carouselRef.current) {
      this.carouselRef.current.goTo(index);
    }
  };

  componentDidMount() {
    this.isUnmounted = false;
    this.initAllCharts();
  }

  componentDidUpdate(prevProps) {
    if (
      prevProps.riskTypeRate !== this.props.riskTypeRate ||
      prevProps.jobTodayTop3 !== this.props.jobTodayTop3 ||
      prevProps.linkSum !== this.props.linkSum ||
      prevProps.taskTop3 !== this.props.taskTop3
    ) {
      this.disposeAllCharts();
      this.initAllCharts();
    }
  }

  componentWillUnmount() {
    this.isUnmounted = true;
    this.disposeAllCharts();
  }

  render() {
    const {
      riskTypeRate = [],
      riskTotal = [],
      mediaList = [],
      announcementList = [],
      currentMediaIndex = 0,
    } = this.props;

    return (
      <div className={styles.homeContentWrapper}>
        <Row className={styles.homeContentRow} gutter={0}>
          {/* 左侧区域 */}
          <Col span={7} className={styles.leftCol}>
            <div className={styles.riskCard}>
              <Row className={styles.riskRow}>
                <Col span={8} className={styles.riskStatsCol}>
                  {riskTypeRate.map((item, index) => (
                    <div key={index} className={`${styles.riskStatItem} ${styles['riskLevel' + item.riskType]}`}>
                      <div className={styles.riskStatName}>{item.riskType}</div>
                      <div className={styles.riskStatValue}>{item.count}</div>
                    </div>
                  ))}
                </Col>
                <Col span={16} className={styles.chartCol}>
                  <div id="riskLevelFull" className={styles.chartContainer}></div>
                </Col>
              </Row>
            </div>

            <div className={styles.spacer}></div>

            <div className={styles.hiddenCard}>
              <Row className={styles.riskRow}>
                <Col span={8} className={styles.hiddenStatsCol}>
                  <div className={styles.hiddenTitle}>年度隐患数据</div>
                  {riskTotal.map((item, index) => (
                    <div key={index} className={styles.hiddenStatItem}>
                      <div className={styles.hiddenStatName}>{item.name}</div>
                      <div className={styles.hiddenStatValue}>{item.value}</div>
                    </div>
                  ))}
                </Col>
                <Col span={16} className={styles.chartCol}>
                  <div id="safeCheckChart" className={styles.chartContainer}></div>
                </Col>
              </Row>
            </div>
          </Col>

          {/* 中间区域 */}
          <Col span={10} className={styles.middleCol}>
            <div className={styles.sloganCard}>
              <div className={styles.sloganText}>安全方针：以人为本、关注健康、依法治企、安全发展。</div>
              <div className={styles.sloganSubText}>安全理念：一切风险皆可控，一切事故皆可防！</div>
            </div>

            <div className={styles.carouselCard}>
              <div className={styles.carouselWrapper}>
                <Carousel
                  ref={this.carouselRef}
                  autoplay
                  autoplaySpeed={5000}
                  effect="fade"
                  dots={false}
                  pauseOnHover={true}
                  afterChange={this.handleCarouselChange}
                  className={styles.carousel}
                >
                  {mediaList.map((item, index) => (
                    <div key={index} className={styles.carouselItem}>
                      {item.type === 'video' ? (
                        <video src={item.url} className={styles.mediaVideo} autoPlay muted loop playsInline />
                      ) : (
                        <img src={item.url} alt={`轮播图 ${index + 1}`} className={styles.mediaImage} />
                      )}
                    </div>
                  ))}
                </Carousel>
                <div className={styles.customArrowLeft} onClick={this.handlePrev}>
                  <Icon type="left" style={{ fontSize: '24px', color: 'rgba(0, 0, 0, 0.5)' }} />
                </div>
                <div className={styles.customArrowRight} onClick={this.handleNext}>
                  <Icon type="right" style={{ fontSize: '24px', color: 'rgba(0, 0, 0, 0.5)' }} />
                </div>
                <div className={styles.customDots}>
                  {mediaList.map((_, index) => (
                    <span
                      key={index}
                      className={`${styles.dot} ${currentMediaIndex === index ? styles.activeDot : ''}`}
                      onClick={() => this.handleDotClick(index)}
                    />
                  ))}
                </div>
              </div>
            </div>

            <div className={styles.announcementCard}>
              <div className={styles.announcementHeader}>
                <div className={styles.announcementTitle}>
                  <Icon type="sound" className={styles.announcementIcon} />
                  <span>公司公告</span>
                </div>
                <span className={styles.announcementCount}>共 {announcementList.length} 条公告</span>
              </div>
              <div className={styles.announcementList}>
                {announcementList.length > 0 ? (
                  <ul className={styles.announcementUl}>
                    {announcementList.map((item, index) => (
                      <li
                        key={item.id || index}
                        className={styles.announcementItem}
                        onClick={() => item.url && window.open(item.url)}
                      >
                        <span className={styles.announcementItemTitle} title={item.title}>
                          {item.title}
                        </span>
                        <span className={styles.announcementItemTime}>
                          {item.publishTime || item.createTime || item.date}
                        </span>
                      </li>
                    ))}
                  </ul>
                ) : (
                  <div className={styles.emptyAnnouncement}>
                    <Icon type="inbox" className={styles.emptyIcon} />
                    <span>暂无公告</span>
                  </div>
                )}
              </div>
            </div>
          </Col>

          {/* 右侧区域 */}
          <Col span={7} className={styles.rightCol}>
            <div className={styles.riskCard}>
              <Row className={styles.riskRow}>
                <Col span={8} className={styles.trainingStatsCol}>
                  <div className={styles.trainingTitle}>年度培训数据</div>
                  {riskTotal.map((item, index) => (
                    <div key={index} className={styles.trainingStatItem}>
                      <div className={styles.trainingStatName}>{item.name}</div>
                      <div className={styles.trainingStatValue}>{item.value}</div>
                    </div>
                  ))}
                </Col>
                <Col span={16} className={styles.chartCol}>
                  <div id="backLogChart" className={styles.chartContainer}></div>
                </Col>
              </Row>
            </div>

            <div className={styles.spacer}></div>

            <div className={styles.dangerCard}>
              <div id="dangerOperationChart" className={styles.fullChartContainer}></div>
            </div>
          </Col>
        </Row>
      </div>
    );
  }
}

export default HomeContent;