<template>
  <!-- #ifdef APP -->
  <scroll-view style="flex: 1">
  <!-- #endif -->
    <view style="flex-grow: 1">
      <text class="uni-tips">说明：左边是正常版本，右边是拍平版本</text>
      <view>
        <text>align-content: center</text>
        <view class="demo-box">
          <view class="common" style="align-content: center">
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
          <view class="common" style="align-content: center" flatten>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
        </view>
      </view>

      <view>
        <text>align-content: flex-start</text>
        <view class="demo-box">
          <view class="common" style="align-content: flex-start">
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
          <view class="common" style="align-content: flex-start" flatten>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
        </view>
      </view>

      <view>
        <text>align-content: flex-end</text>
        <view class="demo-box">
          <view class="common" style="align-content: flex-end">
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
          <view class="common" style="align-content: flex-end" flatten>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
        </view>
      </view>

      <view>
        <text>align-content: space-between</text>
        <view class="demo-box">
          <view class="common" style="align-content: space-between">
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
          <view class="common" style="align-content: space-between" flatten>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
        </view>
      </view>

      <view>
        <text>align-content: space-around</text>
        <view class="demo-box">
          <view class="common" style="align-content: space-around">
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
          <view class="common" style="align-content: space-around" flatten>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
            <view class="flex-item red"></view>
            <view class="flex-item green"></view>
            <view class="flex-item blue"></view>
          </view>
        </view>
      </view>

      <view>
        <text>align-content: stretch</text>
        <view class="demo-box">
          <view class="common" style="align-content: stretch">
            <view class="flex-item-stretch red"></view>
            <view class="flex-item-stretch green"></view>
            <view class="flex-item-stretch blue"></view>
            <view class="flex-item-stretch red"></view>
            <view class="flex-item-stretch green"></view>
            <view class="flex-item-stretch blue"></view>
          </view>
          <view class="common" style="align-content: stretch" flatten>
            <view class="flex-item-stretch red"></view>
            <view class="flex-item-stretch green"></view>
            <view class="flex-item-stretch blue"></view>
            <view class="flex-item-stretch red"></view>
            <view class="flex-item-stretch green"></view>
            <view class="flex-item-stretch blue"></view>
          </view>
        </view>
      </view>

      <view class="uni-common-mt">
        <text class="uni-title-text">scroll-view 组件</text>
        <text class="uni-subtitle-text">align-content: center; 和 align-content: flex-start;</text>
      </view>

      <view class="demo-box">
        <scroll-view class="common" style="align-content: center;" direction="horizontal">
          <view class="flex-item red"></view>
          <view class="flex-item green"></view>
          <view class="flex-item blue"></view>
          <view class="flex-item red"></view>
          <view class="flex-item green"></view>
          <view class="flex-item blue"></view>
        </scroll-view>
        <scroll-view class="common" style="align-content: flex-start;" direction="horizontal">
          <view class="flex-item red"></view>
          <view class="flex-item green"></view>
          <view class="flex-item blue"></view>
          <view class="flex-item red"></view>
          <view class="flex-item green"></view>
          <view class="flex-item blue"></view>
        </scroll-view>
      </view>

      <view class="uni-common-mt">
        <text class="uni-title-text">setProperty 设置与 getPropertyValue 获取 align-content </text>
      </view>

      <view class="common-box">
        <!-- 普通版本 -->
        <view class="uni-common-mt">
          <text class="uni-title-text">align-content</text>
          <text class="uni-info">设置值: {{data.alignContent}}</text>
          <text class="uni-info">获取值: {{data.alignContentActual}}</text>
          <view class="test-box">
            <view ref="viewRef" class="test-flex-container test-view" :style="{ alignContent: data.alignContent }">
              <view class="test-item-small red"></view>
              <view class="test-item-small green"></view>
              <view class="test-item-small blue"></view>
              <view class="test-item-small red"></view>
              <view class="test-item-small green"></view>
              <view class="test-item-small blue"></view>
            </view>
          </view>
        </view>

        <!-- 拍平版本 -->
        <view class="uni-common-mt">
          <text class="uni-title-text">拍平</text>
          <text class="uni-info">设置值: {{data.alignContent}}</text>
          <text class="uni-info">获取值: {{data.alignContentActualFlat}}</text>
          <view class="test-box">
            <view ref="viewRefFlat" class="test-flex-container test-view-flatten" :style="{ alignContent: data.alignContent }" flatten>
              <view class="test-item-small red"></view>
              <view class="test-item-small green"></view>
              <view class="test-item-small blue"></view>
              <view class="test-item-small red"></view>
              <view class="test-item-small green"></view>
              <view class="test-item-small blue"></view>
            </view>
          </view>
        </view>
      </view>

      <view class="uni-common-mt uni-common-mb">
        <text class="uni-tips">第一个枚举值，'' (空字符串) - 空值情况</text>
        <enum-data :items="alignContentEnum" title="align-content 枚举值" @change="radioChangeAlignContent" :compact="true"></enum-data>
        <input-data :defaultValue="data.alignContent" title="align-content 自定义值" type="text" @confirm="inputChangeAlignContent"></input-data>
      </view>
    </view>
  <!-- #ifdef APP -->
  </scroll-view>
  <!-- #endif -->
</template>

<script setup lang="uts">
  import { ItemType } from '@/components/enum-data/enum-data-types'

  const alignContentEnum: ItemType[] = [
    { value: 0, name: '' },
    { value: 1, name: 'flex-start' },
    { value: 2, name: 'flex-end' },
    { value: 3, name: 'center' },
    { value: 4, name: 'space-between' },
    { value: 5, name: 'space-around' },
    { value: 6, name: 'stretch' }
  ]

  const data = reactive({
    alignContent: 'center',
    alignContentActual: '',
    alignContentActualFlat: ''
  })
  const viewRef = ref(null as UniElement | null)
  const viewRefFlat = ref(null as UniElement | null)

  const getPropertyValues = () => {
    data.alignContentActual = viewRef.value?.style.getPropertyValue('align-content') ?? ''
    data.alignContentActualFlat = viewRefFlat.value?.style.getPropertyValue('align-content') ?? ''
  }

  const changeAlignContent = (value: string) => {
    data.alignContent = value
    viewRef.value?.style.setProperty('align-content', value)
    viewRefFlat.value?.style.setProperty('align-content', value)
    // 使用 nextTick 确保样式已应用后再获取值
    nextTick(() => {
      getPropertyValues()
    })
  }

  const radioChangeAlignContent = (index: number) => {
    const selectedItem = alignContentEnum.find((item): boolean => item.value === index)
    if (selectedItem != null) {
      changeAlignContent(selectedItem.name)
    }
  }

  const inputChangeAlignContent = (value: string) => {
    changeAlignContent(value)
  }

  onReady(() => {
    getPropertyValues()
  })

  defineExpose({
    radioChangeAlignContent,
    data
  })
</script>

<style>
  .demo-box {
    flex-direction: row;
    margin-top: 10px;
    justify-content: space-around;
  }

  .flex-item {
    width: 40px;
    height: 40px;
    border-bottom:#ddd solid 1px;
  }
  .flex-item-stretch {
    width: 40px;
  }
  .red {
    background-color: red;
  }
  .green {
    background-color: green;
  }
  .blue {
    background-color: blue;
  }
  .common {
    flex: 1;
    margin: 0 10px;
    height: 160px;
    background-color: gray;
    flex-flow: row wrap;
  }

  .common-box{
    flex-direction: row;
    justify-content: space-around;
  }

  .test-box {
    width: 180px;
    height: 150px;
    background-color: gray;
  }


  .test-flex-container {
    width: 100%;
    height: 100%;
    background-color: gray;
    flex-flow: row wrap;
  }

  .test-item-small {
    width: 35px;
    height: 35px;
  }

  .scroll-view-label {
    font-size: 12px;
    text-align: center;
  }
</style>