<template>
  <view class="content-tabs" @click.stop>
    <view
      v-for="(tab, index) in tabs"
      :key="tab.key"
      class="tab-item"
      :class="{ active: modelValue === tab.key }"
      @click="$emit('update:modelValue', tab.key)"
    >
      <!-- 背景图片 -->
      <image
        class="tab-bg"
        :class="{ 'tab-bg-inactive': modelValue !== tab.key }"
        src="/static/nft/dingbutubiao_liang.png"
        mode="scaleToFill"
      />
      <!-- 左侧图标，绝对浮动覆盖背景左侧色块，不影响文字布局 -->
      <view class="tab-left" :class="{ 'tab-left-first': index === 2 }">
        <text v-if="tab.emoji" class="tab-emoji">{{ tab.emoji }}</text>
        <image
          v-else
          class="tab-icon"
          :src="tab.icon"
          mode="aspectFill"
          :style="{ width: tab.iconWidth + 'rpx', height: tab.iconHeight + 'rpx' }"
        />
      </view>
      <!-- 右侧文字 -->
      <text class="tab-label">{{ tab.label }}</text>
    </view>
  </view>
</template>

<script setup>
defineProps({
  modelValue: { type: String, default: 'hot' }
})

defineEmits(['update:modelValue'])

const tabs = [
  { key: 'hot',      label: '人气王者', emoji: null, icon: '/static/square/3.png',iconWidth: 80, iconHeight: 80 },
  { key: 'new',      label: '新鲜上架', emoji: null, icon: '/static/square/2.png',iconWidth: 80, iconHeight: 80 },
  { key: 'potential', label: '潜力之星', emoji: null, icon: '/static/square/1.png',iconWidth: 96, iconHeight: 96 },
  { key: 'myworks',   label: '我的', emoji: null, icon: '/static/square/4.png',iconWidth: 80, iconHeight: 80 },
]
</script>

<style scoped>
.content-tabs {
  position: relative;
  top: unset;
  left: unset;
  right: unset;
  bottom: 16rpx;
  z-index: 100;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  margin: 8rpx 16rpx 0;
  padding: 0 4rpx;
  height: 56rpx;
  background: transparent;
  overflow: visible;
}

.tab-item {
  flex: 1;
  max-width: 160rpx;
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  height: 56rpx;
  margin: 0 4rpx;
  overflow: visible;
}

/* 背景图片铺满整个 tab */
.tab-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 1;
}

/* 未选中时加透明度 */
.tab-bg-inactive {
  opacity: 0.4;
}

/* 左侧图标，绝对浮动覆盖背景左侧色块，不影响文字布局 */
.tab-left {
  position: absolute;
  z-index: 1;
  left: -16rpx;
  top: 35%;
  transform: translateY(-50%) rotateZ(8deg);
  width: 80rpx;
  height: 80rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
}

/* 第一个 tab 图标单独样式 */
.tab-left-first {
  top: 23%;
  
}

/* 选中时图标上移 */
/* .tab-item.active .tab-left {
  transform: translateY(-70%);
} */

.tab-emoji {
  font-size: 52rpx;
  line-height: 1;
  margin-top: -4rpx;
}

.tab-icon {
  display: block;
}

.tab-label {
  position: relative;
  z-index: 1;
  font-size: 18rpx;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  /* color: #ffffff; */
  text-shadow: 0 2rpx 4rpx rgba(0, 0, 0, 0.8);
  white-space: nowrap;
  margin-left: 48rpx;
}

.tab-item.active .tab-label {
  color: #ffffff;
}
</style>
