<template>
  <view class="u-page__item" v-if="tabbar?.items?.length > 0">
    <pb-s-tabbar :value="path" :fixed="true" :placeholder="true" :safeAreaInsetBottom="true"
      :inactiveColor="tabbar.style.color" :activeColor="tabbar.style.activeColor" :midTabBar="tabbar.mode === 2"
      :customStyle="tabbarStyle">
      <pb-tabbar-item v-for="(item, index) in tabbar.items" :key="item.text" :text="item.text" :name="item.url"
        :isCenter="getTabbarCenter(index)" :centerImage="peach.$url.cdn(item.iconUrl)"
        @tap="peach.$router.go(item.url)">
        <template v-slot:active-icon>
          <image class="u-page__item__slot-icon" :src="peach.$url.static(item.activeIconUrl, 'local')"></image>
        </template>
        <template v-slot:inactive-icon>
          <image class="u-page__item__slot-icon" :src="peach.$url.static(item.iconUrl, 'local')"></image>
        </template>
      </pb-tabbar-item>
    </pb-s-tabbar>
  </view>
</template>

<script setup>
import { onLoad } from '@dcloudio/uni-app'
import { computed, unref } from 'vue'
import PbSTabbar from './pb-s-tabbar.vue'
import peach from '@/peach'

const tabbar = computed(() => {
  return peach.$store('app').template.basic?.tabbar
})

const tabbarStyle = computed(() => {
  const backgroundStyle = tabbar.value.style
  if (backgroundStyle.bgType === 'color') {
    return { background: backgroundStyle.bgColor }
  }
  if (backgroundStyle.bgType === 'img')
    return {
      background: `url(${peach.$url.cdn(backgroundStyle.bgImg)}) no-repeat top center / 100% auto`,
    }
})

const getTabbarCenter = (index) => {
  if (unref(tabbar).mode !== 2) return false
  return unref(tabbar).items % 2 > 0 ? Math.ceil(unref(tabbar).items.length / 2) === index + 1 : false
}

const props = defineProps({
  path: String,
  default: '',
})

onLoad(() => {
  // 隐藏原生导航栏 使用自定义底部导航
  // app.vue 内直接调用，在首页是非 tabbar 页面时，会报错
  uni.hideTabBar()
})
</script>

<style lang="scss">
.u-page {
  padding: 0;

  &__item {
    &__title {
      color: var(--textSize);
      background-color: #fff;
      padding: 15px;
      font-size: 15px;

      &__slot-title {
        color: var(--textSize);
        font-size: 14px;
      }
    }

    &__slot-icon {
      width: 25px;
      height: 25px;
    }
  }
}
</style>
