<script setup>
import { ref, reactive, onMounted } from "vue";

const state = reactive({
  tabs: [
    "公共服务站点 300",
    "培训机构 130",
    "咨询机构 220",
    "教育中心 150",
    "职业介绍所 180",
    "就业服务中心 210"
  ],
  activeIndex: 0
});

const scrollContainer = ref(null);
const canScrollLeft = ref(false);
const canScrollRight = ref(false);

// 检查滚动状态
const checkScroll = () => {
  if (scrollContainer.value) {
    const { scrollLeft, scrollWidth, clientWidth } = scrollContainer.value;
    canScrollLeft.value = scrollLeft > 0;
    canScrollRight.value = scrollLeft < scrollWidth - clientWidth - 1;
  }
};

// 滚动到指定位置
const scrollTo = (direction) => {
  if (!scrollContainer.value) return;

  const container = scrollContainer.value;
  const scrollAmount = 300; // 每次滚动量

  if (direction === "left") {
    container.scrollBy({ left: -scrollAmount, behavior: "smooth" });
  } else {
    container.scrollBy({ left: scrollAmount, behavior: "smooth" });
  }

  // 滚动结束后检查状态
  setTimeout(checkScroll, 300);
};

// 点击标签
const selectTab = (index) => {
  state.activeIndex = index;
  // 可选：自动滚动到选中标签
  scrollToTab(index);
};

// 滚动到指定标签
const scrollToTab = (index) => {
  if (!scrollContainer.value) return;

  const container = scrollContainer.value;
  const tab = container.children[index];
  if (!tab) return;

  const containerWidth = container.clientWidth;
  const tabLeft = tab.offsetLeft;
  const tabWidth = tab.offsetWidth;

  container.scrollTo({
    left: tabLeft - (containerWidth - tabWidth) / 2,
    behavior: "smooth"
  });
};

onMounted(() => {
  checkScroll();
  window.addEventListener("resize", checkScroll);
});
</script>

<template>
  <div class="costomCaedWrapper">
    <div class="horizontal-scroll-container">
      <!-- 左侧滚动按钮 -->
      <!--      <button-->
      <!--        class="scroll-button left"-->
      <!--        :class="{ visible: canScrollLeft }"-->
      <!--        @click="scrollTo('left')"-->
      <!--      >-->
      <!--        <svg viewBox="0 0 24 24">-->
      <!--          <path d="M15.41 16.59L10.83 12l4.58-4.59L14 6l-6 6 6 6 1.41-1.41z"/>-->
      <!--        </svg>-->
      <!--      </button>-->

      <!-- 横向滚动区域 -->
      <div ref="scrollContainer" class="scroll-area" @scroll="checkScroll">
        <div
          v-for="(tab, index) in state.tabs"
          :key="index"
          class="tab-item"
          :class="{ active: state.activeIndex === index }"
          @click="selectTab(index)"
        >
          {{ tab }}
        </div>
      </div>

      <!-- 右侧滚动按钮 -->
      <!--      <button-->
      <!--        class="scroll-button right"-->
      <!--        :class="{ visible: canScrollRight }"-->
      <!--        @click="scrollTo('right')"-->
      <!--      >-->
      <!--        <svg viewBox="0 0 24 24">-->
      <!--          <path d="M8.59 16.59L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.41z"/>-->
      <!--        </svg>-->
      <!--      </button>-->
    </div>

    <img class="echart" src="~@/assets/recruitment/echart.svg" alt="" />
  </div>
</template>

<style lang="scss" scoped>
.costomCaedWrapper {
  .echart {
    margin-top: 1.5vw;
    width: 100%;
    height: auto;
    display: block;
  }
}

.horizontal-scroll-container {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.scroll-area {
  display: flex;
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
  flex: 1;
}

.scroll-area::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

.tab-item {
  flex: 0 0 auto;
  margin: 0 8px;
  width: 6.771vw;
  height: 1.875vw;
  text-align: center;
  font-size: 0.729vw;
  line-height: 1.875vw;
  background: url("~@/assets/recruitment/tabs_bg.svg") no-repeat center center;
  background-size: 100% 100%;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.tab-item.active {
  background-image: url("~@/assets/recruitment/tabs_bg_active.svg");
  color: white;
  font-weight: 500;
}

.tab-item:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.scroll-button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 1.875vw;
  height: 1.875vw;
  border-radius: 50%;
  background: #0b1318;
  border: 1px solid #0b1318;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-button.visible {
  opacity: 1;
}

.scroll-button.left {
  left: 0;
}

.scroll-button.right {
  right: 0;
}

.scroll-button svg {
  width: 24px;
  height: 24px;
  fill: #666;
}

.scroll-button:hover {
  background: #f0f0f0;
}
</style>
