<template>
  <div class="upload-box">
    <el-upload
      :id="uuid"
      :accept="fileType.join(',')"
      :action="uploadUrl"
      :before-upload="beforeUpload"
      :class="['upload', drag ? 'no-border' : '']"
      :disabled="disabled"
      :drag="drag"
      :http-request="httpRequest"
      :multiple="false"
      :on-error="uploadError"
      :on-success="uploadSuccess"
      :show-file-list="false"
    >
      <template v-if="modelValue">
        <video :src="modelValue" class="upload-video" controls></video>
        <div class="upload-handle" @click.stop>
          <div v-if="!disabled" class="handle-icon" @click="editVideo">
            <Icon icon="ep:edit" />
            <span v-if="showBtnText">{{ t('action.edit') }}</span>
          </div>
          <div class="handle-icon" @click="videoPreview(modelValue)">
            <Icon icon="ep:zoom-in" />
            <span v-if="showBtnText">{{ t('action.detail') }}</span>
          </div>
          <div v-if="showDelete && !disabled" class="handle-icon" @click="deleteVideo">
            <Icon icon="ep:delete" />
            <span v-if="showBtnText">{{ t('action.del') }}</span>
          </div>
        </div>
      </template>
      <template v-else>
        <div class="upload-empty">
          <slot name="empty">
            <Icon icon="ep:plus" />
            <!-- <span>请上传视频</span> -->
          </slot>
        </div>
      </template>
    </el-upload>
    <!-- 上传进度条 -->
    <div v-if="isUploading" class="uploadProgress">
      <el-progress :percentage="uploadProgress" />
      <div class="text-xs text-gray-500 text-right mt-1">{{ uploadProgress }}% 已上传</div>
    </div>
    <div class="el-upload__tip">
      <slot name="tip"></slot>
    </div>
  </div>
</template>

<script lang="ts" setup>
import type { UploadProps } from 'element-plus'

import { generateUUID } from '@/utils'
import { propTypes } from '@/utils/propTypes'
import { useUpload } from '@/components/UploadFile/src/useUpload'
import request from '@/config/axios'

defineOptions({ name: 'UploadVideo2' })

// 视频类型定义
type FileTypes = 
  | 'video/mp4'
  | 'video/avi'
  | 'video/mov'
  | 'video/flv'
  | 'video/webm'
  | 'video/ogg'

// 接受父组件参数
const props = defineProps({
  modelValue: propTypes.string.def(''),
  drag: propTypes.bool.def(true), // 是否支持拖拽上传 ==> 非必传（默认为 true）
  disabled: propTypes.bool.def(false), // 是否禁用上传组件 ==> 非必传（默认为 false）
  fileSize: propTypes.number.def(500), // 视频大小限制 ==> 非必传（默认为 500M）
  fileType: propTypes.array.def(['video/mp4', 'video/avi', 'video/mov', 'video/flv']), // 视频类型限制 ==> 非必传
  height: propTypes.string.def('150px'), // 组件高度 ==> 非必传（默认为 150px）
  width: propTypes.string.def('150px'), // 组件宽度 ==> 非必传（默认为 150px）
  borderradius: propTypes.string.def('8px'), // 组件边框圆角 ==> 非必传（默认为 8px）
  showDelete: propTypes.bool.def(true), // 是否显示删除按钮
  showBtnText: propTypes.bool.def(true), // 是否显示按钮文字
  directory: propTypes.string.def(undefined) // 上传目录 ==> 非必传（默认为 undefined）
})

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗
// 生成组件唯一id
const uuid = ref('id-' + generateUUID())

// 上传进度相关状态
const uploadProgress = ref(0)
const isUploading = ref(false)

const emit = defineEmits(['update:modelValue', 'upload-progress', 'upload-start', 'upload-complete'])

const deleteVideo = () => {
  emit('update:modelValue', '')
}

const { uploadUrl } = useUpload(props.directory)

// 自定义httpRequest方法
const httpRequest: UploadProps['httpRequest'] = async (options) => {
  try {
    // 触发上传开始事件
    emit('upload-start')
    isUploading.value = true
    uploadProgress.value = 0

    const formData = new FormData()
    formData.append('file', options.file as File)

    // 使用axios的upload方法，并传入onProgress回调
    const res = await request.upload({
      url: uploadUrl,
      data: formData,
      onProgress: (progress: number) => {
        // 触发上传进度事件
        uploadProgress.value = progress
        emit('upload-progress', progress)
      }
    })

    // 调用成功回调
    options.onSuccess(res)
  } catch (error) {
    // 调用失败回调
    options.onError(error)
  } finally {
    // 触发上传完成事件
    isUploading.value = false
    uploadProgress.value = 100
    emit('upload-complete')
  }
}

const editVideo = () => {
  const dom = document.querySelector(`#${uuid.value} .el-upload__input`)
  dom && dom.dispatchEvent(new MouseEvent('click'))
}

const videoPreview = (videoUrl: string) => {
  // 打开视频预览
  window.open(videoUrl, '_blank')
}

const beforeUpload: UploadProps['beforeUpload'] = (rawFile) => {
  const videoSize = rawFile.size / 1024 / 1024 < props.fileSize
  const videoType = props.fileType
  if (!videoType.includes(rawFile.type as FileTypes))
    message.notifyWarning('上传视频不符合所需的格式！')
  if (!videoSize) message.notifyWarning(`上传视频大小不能超过 ${props.fileSize}M！`)
  return videoType.includes(rawFile.type as FileTypes) && videoSize
}

// 视频上传成功提示
const uploadSuccess: UploadProps['onSuccess'] = (res: any): void => {
  emit('update:modelValue', res.data)
}

// 视频上传错误提示
const uploadError = () => {
  message.notifyError('视频上传失败，请您重新上传！')
  isUploading.value = false
  uploadProgress.value = 0
}
</script>

<style lang="scss" scoped>
.is-error {
  .upload {
    :deep(.el-upload),
    :deep(.el-upload-dragger) {
      border: 1px dashed var(--el-color-danger) !important;

      &:hover {
        border-color: var(--el-color-primary) !important;
      }
    }
  }
}

:deep(.disabled) {
  .el-upload,
  .el-upload-dragger {
    cursor: not-allowed !important;
    background: var(--el-disabled-bg-color);
    border: 1px dashed var(--el-border-color-darker) !important;

    &:hover {
      border: 1px dashed var(--el-border-color-darker) !important;
    }
  }
}

.upload-box {
  .no-border {
    :deep(.el-upload) {
      border: none !important;
    }
  }

  :deep(.upload) {
    .el-upload {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      width: v-bind(width);
      height: v-bind(height);
      overflow: hidden;
      border: 1px dashed var(--el-border-color-darker);
      border-radius: v-bind(borderradius);
      transition: var(--el-transition-duration-fast);

      &:hover {
        border-color: var(--el-color-primary);

        .upload-handle {
          opacity: 1;
        }
      }

      .el-upload-dragger {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 100%;
        padding: 0;
        overflow: hidden;
        background-color: transparent;
        border: 1px dashed var(--el-border-color-darker);
        border-radius: v-bind(borderradius);

        &:hover {
          border: 1px dashed var(--el-color-primary);
        }
      }

      .el-upload-dragger.is-dragover {
        background-color: var(--el-color-primary-light-9);
        border: 2px dashed var(--el-color-primary) !important;
      }

      .upload-video {
        width: 100%;
        height: 100%;
        object-fit: contain;
      }

      .upload-empty {
        position: relative;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        line-height: 30px;
        color: var(--el-color-info);

        .el-icon {
          font-size: 28px;
          color: var(--el-text-color-secondary);
        }
      }

      .upload-handle {
        position: absolute;
        top: 0;
        right: 0;
        display: flex;
        width: 100%;
        height: 100%;
        cursor: pointer;
        background: rgb(0 0 0 / 60%);
        opacity: 0;
        box-sizing: border-box;
        transition: var(--el-transition-duration-fast);
        align-items: center;
        justify-content: center;

        .handle-icon {
          display: flex;
          flex-direction: column;
          align-items: center;
          justify-content: center;
          padding: 0 6%;
          color: aliceblue;

          .el-icon {
            margin-bottom: 40%;
            font-size: 130%;
            line-height: 130%;
          }

          span {
            font-size: 85%;
            line-height: 85%;
          }
        }
      }
    }
  }

  .el-upload__tip {
    line-height: 18px;
    text-align: center;
  }

  .uploadProgress {
    width: 100%;
    margin-top: 10px;
  }
}
</style>
