<template>
  <!-- 外层滚动容器：添加鼠标事件监听 -->
  <div class="coreItem-container" @mousedown="handleMouseDown" @mousemove="handleMouseMove" @mouseup="handleMouseUp"
    @mouseleave="handleMouseUp" :style="{ cursor: isDragging ? 'grabbing' : 'grab' }">
    <div class="coreItem">
      <div class="item" v-for="(item, index) in itemList" :key="index">
        <div class="item-header">
          <div class="unit">{{ item.name }}</div>
        </div>
        <div class="item-content">
          <div class="content-wrapper">
            <!-- 预算值 + 分割线 + 实际值 -->
            <div class="value-group">
              <div class="value-item">
                <div class="number">{{ item.value }}</div>
                <!-- <div class="title">预算值</div> -->
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Container",
  components: {},
  props: ["name", "size", "icon",'itemList'],
  data() {
    return {
      itemList: [],
      // 拖拽相关状态
      isDragging: false, // 是否正在拖拽
      startX: 0, // 拖拽开始时的鼠标X坐标
      scrollLeft: 0 // 拖拽开始时的滚动条位置
    };
  },
  methods: {
    // 鼠标按下：开始拖拽
    handleMouseDown(e) {
      this.isDragging = true;
      this.startX = e.pageX - this.$el.offsetLeft; // 记录初始鼠标X坐标（相对容器）
      this.scrollLeft = this.$el.scrollLeft; // 记录初始滚动位置
      this.$el.style.userSelect = "none"; // 防止拖拽时选中文字
    },
    // 鼠标移动：处理拖拽滚动
    handleMouseMove(e) {
      if (!this.isDragging) return;
      e.preventDefault(); // 阻止默认行为（如选中文本）
      const x = e.pageX - this.$el.offsetLeft; // 计算当前鼠标X坐标（相对容器）
      const walk = (x - this.startX) * 1.2; // 计算移动距离（乘以1.2增加灵敏度）
      this.$el.scrollLeft = this.scrollLeft - walk; // 更新滚动位置
    },
    // 鼠标松开/离开：结束拖拽
    handleMouseUp() {
      this.isDragging = false;
      this.$el.style.userSelect = ""; // 恢复文本选择
    }
  }
};
</script>

<style scoped lang="scss">
.coreItem-container {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;

  // 隐藏滚动条（保留功能）
  &::-webkit-scrollbar {
    height: 0; // 彻底隐藏横向滚动条
    width: 0;
  }

  scrollbar-width: none; // Firefox
  -ms-overflow-style: none; // IE/Edge

  // 拖拽时的光标样式（增强交互体验）
  cursor: grab;

  &:active {
    cursor: grabbing;
  }
}

.coreItem {
  display: flex;
  gap: 16px;
  padding: 0 8px;
  width: fit-content; // 宽度由子项总宽度决定
  min-width: 100%; // 子项较少时铺满容器
}

.item {
  width: 280px;
  height: 80px;
  background: #f9fcff;
  padding: 10px 20px 0 27px;
  box-sizing: border-box;
  transition: all 0.3s ease;

  .item-header {
    margin-bottom: 11px;
  }

  .unit {
    font-family: PingFangSC, PingFang SC;
    font-weight: 500;
    font-size: 18px;
    color: #333333;
    line-height: 1.2;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .item-content {
    display: flex;
    flex-direction: column;
    height: calc(100% - 30px);
  }

  .content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
  }

  .value-group {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .value-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .middle-line {
   width: 207px;
  height: 3px;
  border: 1px solid;
  border-image: linear-gradient(109deg, rgba(203, 203, 203, 1), rgba(255, 255, 255, 0)) 1 1;
  }

  .number {
    font-family: PingFangSC, PingFang SC;
    font-weight: 600;
    font-size: 24px;
    color: #666666;
    line-height: 1.2;
    text-align: left;
  }

  .title {
    font-family: PingFangSC, PingFang SC;
    font-weight: 400;
    font-size: 14px;
    color: #999999;
    line-height: 1.2;
    text-align: left;
  }

  .progress-yield-group {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .progress-group {
    display: flex;
    align-items: center;
  }

  .progress-container {
    width: 100%;
    height: 8px;
    background: #F5F7FA;
    border-radius: 4px;
    overflow: hidden;
  }

  .progress-bar {
    height: 100%;
    background: rgba(98, 213, 180, .7);
    border-radius: 4px;
    transition: width 0.5s ease;
  }

  .yield {
    display: flex;
    justify-content: space-between;
    margin-top: 4px;
  }

  .progress-percent {
    font-family: PingFangSC, PingFang SC;
    font-weight: 400;
    font-size: 12px;
    color: #999999;
    line-height: 1;
  }

  .progress-value {
    color: #28CB97;
    font-weight: 500;
  }
}
</style>
