<template>
  <div class="coreBar" style="width: 100%;">
    <div class="barTop">
      <div class="title">生产指标趋势</div>
      <div class="button-group">
        <div class="item-button" :class="{ active: activeButton === 0 }" @click="activeButton = 0">制造成本</div>
        <div class="button-line lineOne" v-if="activeButton !== 0 && activeButton !== 1"></div>
        <div class="item-button" :class="{ active: activeButton === 1 }" @click="activeButton = 1">原片成本</div>
        <div class="button-line lineTwo" v-if="activeButton !== 1 && activeButton !== 2"></div>
        <div class="item-button" :class="{ active: activeButton === 2 }" @click="activeButton = 2">加工成本</div>
        <div class="button-line lineThree" v-if="activeButton !== 2 && activeButton !== 3"></div>
        <div class="item-button" style="width: 75px;" :class="{ active: activeButton === 3 }" @click="activeButton = 3">
          原片成品率</div>
        <div class="button-line lineFour" v-if="activeButton !== 3 && activeButton !== 4"></div>
        <div class="item-button" style="width: 75px;" :class="{ active: activeButton === 4 }" @click="activeButton = 4">
          投入产出率</div>
          <div class="button-line lineFive" v-if="activeButton !== 4 && activeButton !== 5"></div>
        <div class="item-button" style="width: 45px;" :class="{ active: activeButton === 5 }" @click="activeButton = 5">
          折旧</div>
      </div>
    </div>
    <div class="lineBottom" style="height: 219px; width: 100%" v-if="isLineDataReady">
      <!-- 核心改动：动态传递数据给子组件 -->
      <coreLineChart style="height: 219px; width: 100%" :chart-data="selectedChartData" :unit='unit' :dateData="dateData" />
    </div>
  </div>
</template>

<script>
import coreLineChart from './productBar.vue';
const dataKeyMap = [
  {name:'制造成本',unit:'元/㎡'},
  {name:'原片成本',unit:'元/㎡'},
  {name:'加工成本',unit:'元/㎡'},
  {name:'原片成品率',unit:'%'},
  {name:'投入产出率',unit:'%'},
  {name:'折旧',unit:'万元'}
];
export default {
  name: "Container",
  components: { coreLineChart },
  props: ["lineData",'dateData'], // 接收父组件传递的完整line数据对象
  data() {
    return {
      activeButton: 0, // 初始激活第一个按钮（索引0）
      dataKeyMap
    };
  },
  computed: {
    isLineDataReady() {
      // 确保 lineData 是一个对象，而不是 null 或 undefined
      return this.lineData && typeof this.lineData === 'object';
    },
    // 核心改动：计算属性，根据activeButton动态返回选中的数据
    selectedChartData() {
      // 根据当前激活的按钮索引获取对应的数据key
      const selectedKey = this.dataKeyMap[this.activeButton].name;

      // 从lineData中获取对应的数据，如果不存在则返回一个空对象以防止报错
      return this.lineData ? this.lineData[selectedKey] || {} : {};
    },
    unit() {
      return this.dataKeyMap[this.activeButton].unit;
    }
  },
  methods: {},
};
</script>

<style scoped lang="scss">
/* (你的样式代码保持不变) */
.coreBar {
  display: flex;
  flex-direction: column;
  padding: 12px;

  .barTop {
    display: flex;
    gap: 20px;

    .title {
      height: 18px;
      font-family: PingFangSC, PingFang SC;
      font-weight: 400;
      font-size: 18px;
      color: #000000;
      line-height: 18px;
      letter-spacing: 1px;
      text-align: left;
      font-style: normal;
    }

    .button-group {
      display: flex;
      position: relative;
      gap: 2px;
      width: 356px;
      align-items: center;
      height: 24px;
      background: #ecf4fe;
      border-radius: 12px;

      .button-line {
        position: absolute;
        width: 1px;
        height: 14px;
        border: 1px solid rgba(11, 88, 255, 0.25);
      }

      .lineOne {
        top: 6px;
        left: 55px;
      }

      .lineTwo {
        top: 6px;
        left: 111px;
      }

      .lineThree {
        top: 6px;
        left: 169px;
      }

      .lineFour {
        top: 6px;
        left: 240px;
      }
      .lineFive {
        top: 6px;
        left: 314px;
      }

      .item-button {
        cursor: pointer;
        width: 59px;
        height: 24px;
        font-family: PingFangSC, PingFang SC;
        font-weight: 400;
        font-size: 12px;
        color: #0b58ff;
        line-height: 24px;
        text-align: center;
        font-style: normal;
      }

      .item-button.active {
        width: 59px;
        height: 24px;
        background: #3071ff;
        border-radius: 12px;
        color: #ffffff;
        font-weight: 500;
      }
    }
  }
}
</style>
