<template>
  <div class="realtime-container">
    <div ref="chart" class="chart" :style="{height: '400px', width: '100%'}" />
    <div class="realtime-foot">
      <div class="realtime-foot-title">测流成果</div>
      <div class="realtime-foot-actions">
        <div class="realtime-foot-action">
          <svg-icon icon-class="manual" class-name="realtime-foot-action-icon" @click="handleManualMeasure" />
          <div class="realtime-foot-action-label">手动测流</div>
        </div>
        <div class="realtime-foot-action" v-if="isplay">
          <svg-icon icon-class="realtime-stop" class-name="realtime-foot-action-icon" @click="stop" />
          <div class="realtime-foot-action-label">终止回放</div>
        </div>
        <div class="realtime-foot-action" v-else>
          <svg-icon icon-class="realtime-play" class-name="realtime-foot-action-icon" @click="play" />
          <div class="realtime-foot-action-label">回放</div>
        </div>
      </div>
      <div class="realtime-foot-time">
        <div class="realtime-foot-time-label">施测时间：</div>
        <div class="realtime-foot-time-value">{{ task.createTime }}</div>
      </div>
    </div>

    <Manual ref="manual" />
  </div>
</template>

<script>
import * as echarts from "echarts";
import resize from '@/utils/resize'
import { getConfig } from '@/api/site/site'
import { getSiteSection } from '@/api/site/berthing'
import CarSvg from '@/assets/images/car.svg'
import Manual from './manual';

export default {
  components: {
    Manual,
  },
  mixins: [resize],
  props: {
    siteId: Number | String,
    positions: Array,
    measureLine: Array,
    siteRealTime: Object,
    task: Object,
    location: Number,
    waterlevel: Number,
    isplay: Boolean,
  },
  data() {
    return {
      sections: [],
      config: {},
    }
  },
  mounted() {
    this.loadSection();
    this.loadSiteConfig();
    this.$nextTick(() => {
      this.chart = echarts.init(this.$refs.chart, 'macarons');
    })
  },
  beforeDestroy() {
    if (this.chart) {
      this.chart.dispose()
      this.chart = null
    }
  },
  methods: {
    play() {
      this.$emit('play');
    },
    stop() {
      this.$modal.confirm('是否确认终止回放？').then(() => {
        this.$emit('stop');
      }).catch(() => {});
    },
    loadSection() {
      getSiteSection(this.siteId).then((res) => {
        this.sections = JSON.parse(res.data.positions) || [];
        this.setOptions();
      })
    },
    loadSiteConfig() {
      getConfig(this.siteId).then((res) => {
        this.config = res.data || {};
        this.setOptions();
      })
    },
    handleManualMeasure() {
      this.$refs.manual.open({ siteId: this.siteId });
    },
    setOptions() {
      if (!this.chart || !this.config || this.sections.length === 0) {
        return;
      }

      const carWidth = 50; // 小车宽度
      const carHeight = 32; // 小车高度
      const barWidth = 18; // 立柱宽度
      const boxWidth = carWidth * 1.2; // 小车充电盒子宽度

      const waterlevel = this.waterlevel;
      const start = this.config.offset;
      const location = this.location < start ? start : this.location;

      const { sections, bar1X, bar2X } = this.calcSection();

      const x = sections.map(([x]) => x);
      const maxX = Math.max(...x);
      const minX = Math.min(...x);

      const y = sections.map(([,y]) => y);
      const maxY = Math.max(...y);
      const minY = Math.min(...y);
      const disY = maxY - minY;
      const barY = maxY + disY * 1.2;
      const lineY = maxY + disY * 0.8;

      const stopSeries = this.positions.map(({x}) => [x, lineY]);
      const stopLineSeries = this.measureLine.map(({pn, wspeed}) => ({xAxis: this.positions[pn - 1].x, name: `${wspeed}m³/h`}));

      const options = {
        grid: {
          top: 0,
          left: 0,
          right: 0,
          bottom: 0,
          show: false,
        },
        xAxis: {
          type: 'value',
          min: minX,
          max: maxX,
          show: false,
        },
        yAxis: {
          min: minY - disY * 0.1,
          max: maxY + disY * 1.5,
          type: 'value',
          show: false,
        },
        series: [
          {
            data: sections,
            type: 'line',
            // symbol: 'none',
            animation: false,
            z: 10,
            lineStyle: {
              width: 1,
              color: '#FF8500',
            },
            areaStyle: {
              opacity: 1,
              color: '#ffc27f',
            }
          },
          {
            data: [[minX, waterlevel],[maxX, waterlevel]],
            type: 'line',
            symbol: 'none',
            z: 0,
            lineStyle: {
              width: 0,
            },
            areaStyle: {
              opacity: 1,
              color: '#a5cdf7',
            }
          },
          {
            data: [[bar1X, lineY],[bar2X, lineY]],
            type: 'line',
            symbol: 'none',
            z: 2,
            lineStyle: {
              width: 2,
              color: '#54606C',
            },
          },
          {
            data: stopSeries,
            type: 'line',
            z: 4,
            symbol: 'circle',
            symbolSize: (_, params) => {
              if (params.dataIndex < this.measureLine.length) {
                return 20
              } else {
                return 10
              }
            },
            lineStyle: {
              width: 0,
            },
            itemStyle: {
              color: (params) => {
                if (params.dataIndex < this.measureLine.length) {
                  return '#55DA74'
                } else {
                  return '#FF8500'
                }
              },
            },
            markLine: {
              data: stopLineSeries,
              symbol: 'none',
              lineStyle: {
                color: '#FF8500'
              },
              label: {
                show: true,
                position: 'middle',
                formatter: '{b}',
                color: '#FF8500',
              }
            }
          },
          {
            data: [[bar1X, barY],[bar2X, barY]],
            type: 'bar',
            barWidth: barWidth,
            z: 3,
            itemStyle: {
              color: '#A6B7C7',
            }
          },
          {
            data: [[location, lineY]],
            type: 'scatter',
            symbol: `image://${CarSvg}`,
            symbolSize: [carWidth, carHeight],
            symbolOffset: [0, -6],
            silent: true,
            z: 3,
            itemStyle: {
              opacity: 1
            }
          },
          {
            data: [[start, lineY]],
            type: 'scatter',
            symbol: 'rect',
            symbolSize: [boxWidth, 30],
            symbolOffset: [0, '-50%'],
            silent: true,
            z: 4,
            itemStyle: {
              color: '#778CB2',
              opacity: 0.5
            }
          },
        ]
      };
      this.chart.setOption(options);
    },
    calcSection() {
      const { local, offset } = this.config;
      const sections = [...this.sections.map(({x, y}) => [x, y])];
      const firstPoint = this.sections[0];
      const lastPoint = this.sections[this.sections.length - 1];
      let bar1X = 0;
      let bar2X = 0;

      if (local === 1) {
        bar1X = offset
        bar2X = lastPoint.x + (firstPoint.x - offset)
        if (offset < firstPoint.x) {
          sections.unshift([offset, firstPoint.y])
          sections.push([bar2X, lastPoint.y])
        }
      } else {
        bar1X = firstPoint.x - (offset - lastPoint.x)
        bar2X = offset
        if (offset > lastPoint.x) {
          sections.unshift([bar1X, firstPoint.y])
          sections.push([offset, lastPoint.y])
        }
      }

      const x = sections.map(([x]) => x);
      const min = Math.min(...x);
      const max = Math.max(...x);

      const width = max - min;
      const gap = width * 0.05;

      sections.unshift([min - gap, firstPoint.y]);
      sections.push([max + gap, lastPoint.y]);

      return { sections, bar1X, bar2X };
    }
  },
  watch: {
    waterlevel() {
      this.setOptions();
    },
    location() {
      this.setOptions();
    },
    measureLine() {
      this.setOptions();
    },
  }
}
</script>

<style scoped>
.realtime-container {
  height: 500px;
  background: linear-gradient(0, #FFFFFF 57%, #D1E8FF 100%);
  border-radius: 4px;
  padding: 0 20px;
}
.realtime-foot {
  height: 100px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.realtime-foot-title {
  font-size: 18px;
  font-weight: 600;
  color: #1D2738;
}
.realtime-foot-actions {
  display: flex;
  align-items: center;
}
.realtime-foot-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 25px;
  cursor: pointer;
}
.realtime-foot-action-icon {
  width: 40px;
  height: 40px;
}
.realtime-foot-action-label {
  font-size: 12px;
  line-height: 20px;
  color: #54606C;
}
.realtime-foot-time {
  display: flex;
  align-items: center;
  font-size: 14px;
}
.realtime-foot-time-label {
  color: #54606C;
}
.realtime-foot-time-value {
  color: #1D2738;
}
</style>
