<template>
  <div :class="`go-preview ${localStorageInfo.editCanvasConfig.previewScaleType}`">
    <template v-if="showEntity">
      <!-- 实体区域 -->
      <div ref="entityRef" class="go-preview-entity">
        <!-- 缩放层 -->
        <div ref="previewRef" class="go-preview-scale">
          <!-- 展示层 -->
          <div :style="previewRefStyle" v-if="show">
            <!-- 渲染层 -->
            <preview-render-list :localStorageInfo="localStorageInfo"></preview-render-list>
          </div>
        </div>
      </div>
    </template>
    <template v-else>
      <!-- 缩放层 -->
      <div ref="previewRef" class="go-preview-scale">
        <!-- 展示层 -->
        <div :style="previewRefStyle" v-if="show">
          <!-- 渲染层 -->
          <preview-render-list :localStorageInfo="localStorageInfo"></preview-render-list>
        </div>
      </div>
    </template>
  </div>
</template>

<script setup lang="ts">
import { computed } from 'vue'
import { PreviewRenderList } from './components/PreviewRenderList'
import { getFilterStyle } from '@/utils'
import { getEditCanvasConfigStyle, getSessionStorageInfo } from './utils'
import { useComInstall } from './hooks/useComInstall.hook'
import { useScale } from './hooks/useScale.hook'
import { useStore } from './hooks/useStore.hook'
import { PreviewScaleEnum } from '@/enums/styleEnum'
import type { ChartEditStorageType } from './index.d'

const localStorageInfo: ChartEditStorageType = getSessionStorageInfo() as ChartEditStorageType

const previewRefStyle = computed(() => {
  return {
    ...getEditCanvasConfigStyle(localStorageInfo.editCanvasConfig),
    ...getFilterStyle(localStorageInfo.editCanvasConfig)
  }
})

const showEntity = computed(() => {
  const type = localStorageInfo.editCanvasConfig.previewScaleType
  return type === PreviewScaleEnum.SCROLL_Y || type === PreviewScaleEnum.SCROLL_X
})

useStore(localStorageInfo)
const { entityRef, previewRef } = useScale(localStorageInfo)
const { show } = useComInstall(localStorageInfo)
</script>

<style lang="scss" scoped>
@include go('preview') {
  position: relative;
  height: 100vh;
  width: 100vw;
  @include background-image('background-image');
  &.fit,
  &.full {
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    .go-preview-scale {
      transform-origin: center center;
    }
  }
  &.scrollY {
    overflow-x: hidden;
    .go-preview-scale {
      transform-origin: left top;
    }
  }
  &.scrollX {
    overflow-y: hidden;
    .go-preview-scale {
      transform-origin: left top;
    }
  }
  .go-preview-entity {
    overflow: hidden;
  }
}
</style>
