import React, { useCallback, useMemo, useRef, useState } from 'react'
import styles from './index.module.scss'

// 引入编辑器组件

// 安装---npm install braft-editor --save --force
// npm install braft-utils --save --force
import { ContentUtils } from 'braft-utils'
import BraftEditor from 'braft-editor'
// 引入编辑器样式
import 'braft-editor/dist/index.css'

import classNames from 'classnames'
import { MessageFu } from '@/utils/message'
import { fileDomInitialFu } from '@/utils/domShow'
import { baseURL } from '@/utils/http'

import { forwardRef, useImperativeHandle } from 'react'
import { API_upFile } from '@/store/action/layout'
import { Button } from 'antd'
import { TopTypeType } from '@/pages/A2Abusiness/data'

export type SectionArrType = {
  id: number
  txt: any
}

type Props = {
  check: boolean //表单校验，为fasle表示不校验
  dirCode: string //文件的code码
  isLook: boolean //是否是查看进来
  ref: any //当前自己的ref，给父组件调用
  myUrl: string //上传的api地址
  topType: TopTypeType
}

function ZRichTexts({ check, dirCode, isLook, myUrl, topType }: Props, ref: any) {
  const [sectionArr, setSectionArr] = useState<SectionArrType[]>([
    {
      id: Date.now(),
      txt: BraftEditor.createEditorState('')
    }
  ])

  // 判断 富文本是否为空
  const isTxtFlag = useMemo(() => {
    let flag = false

    // 不是按章节发布，检查第一个富文本
    const txt = sectionArr[0].txt.toHTML()

    const txtRes = txt.replaceAll(' ', '').replaceAll('</p><p>', '')

    if (txtRes === '') flag = true

    if (txtRes.split('></p>').length - 1 === 1 && !txtRes.includes('class="media-')) flag = true

    return flag
  }, [sectionArr])

  const myInput = useRef<HTMLInputElement>(null)

  // 上传图片、视频
  const handeUpPhoto = useCallback(
    async (e: React.ChangeEvent<HTMLInputElement>) => {
      if (e.target.files) {
        // 拿到files信息
        const filesInfo = e.target.files[0]

        let type = ['image/jpeg', 'image/png']
        let size = 5
        let txt = '图片只支持png、jpg和jpeg格式!'
        let txt2 = '图片最大支持5M!'
        // 校验格式
        if (!type.includes(filesInfo.type)) {
          e.target.value = ''
          return MessageFu.warning(txt)
        }

        // 校验大小
        if (filesInfo.size > size * 1024 * 1024) {
          e.target.value = ''
          return MessageFu.warning(txt2)
        }

        // 创建FormData对象
        const fd = new FormData()
        // 把files添加进FormData对象（‘photo’为后端需要的字段）
        fd.append('type', 'img')
        fd.append('dirCode', dirCode)
        fd.append('file', filesInfo)
        fd.append('orderType', topType)

        e.target.value = ''

        try {
          const res = await API_upFile(fd, myUrl)
          if (res.code === 0) {
            MessageFu.success('上传成功!')
            // 在光标位置插入图片
            const newTxt = ContentUtils.insertMedias(sectionArr[0].txt, [
              {
                type: 'IMAGE',
                url: baseURL + res.data.filePath
              }
            ])
            const arr = [...sectionArr]
            arr[0].txt = newTxt
            setSectionArr(arr)
          }
          fileDomInitialFu()
        } catch (error) {
          fileDomInitialFu()
        }
      }
    },
    [dirCode, myUrl, sectionArr, topType]
  )

  // 让父组件调用的 回显 富文本
  const ritxtShowFu = useCallback((val: any) => {
    if (val) {
      if (val.txtArr) {
        const arr = val.txtArr.map((v: any) => ({
          ...v,
          txt: BraftEditor.createEditorState(v.txt)
        }))
        setSectionArr(arr)
      }
    }
  }, [])

  // 让父组件调用的返回 富文本信息 和 表单校验 isTxtFlag为ture表示未通过校验
  const fatherBtnOkFu = useCallback(() => {
    const arr: any[] = []

    sectionArr.forEach((v, i) => {
      arr.push({
        ...v,
        txt: v.txt.toHTML()
      })
    })

    const obj = {
      isSection: 'no',
      txtArr: arr
    }

    return { val: obj, flag: isTxtFlag }
  }, [isTxtFlag, sectionArr])

  // 可以让父组件调用子组件的方法
  useImperativeHandle(ref, () => ({
    ritxtShowFu,
    fatherBtnOkFu
  }))

  // 单个富文本是否输入完整
  const isOneTxtFlag = useCallback((txt: any) => {
    let flag = false
    const txtRes: string = txt.toHTML()
    const txtRes2 = txtRes.replaceAll(' ', '').replaceAll('</p><p>', '')

    if (txtRes2 === '') flag = true

    if (txtRes2.split('></p>').length - 1 === 1 && !txtRes2.includes('class="media-')) flag = true

    return flag
  }, [])

  return (
    <div className={styles.ZRichTexts}>
      <input
        id='upInput'
        type='file'
        accept='.png,.jpg,.jpeg'
        ref={myInput}
        onChange={e => handeUpPhoto(e)}
      />

      <div className={classNames('formRightZW', isLook ? 'formRightZWLook' : '')}>
        <div className='formRightZWRR'>
          <div hidden={isLook}>
            <Button
              onClick={() => {
                myInput.current?.click()
              }}
            >
              上传图片
            </Button>
          </div>
        </div>
      </div>

      <div className={classNames('txtBox', isLook ? 'txtBoxLook' : '')}>
        {sectionArr.map((item, index) => (
          <div
            className={classNames('zztxtRow', isOneTxtFlag(item.txt) && check ? 'zztxtRowErr' : '')}
            key={item.id}
          >
            {/* 主体 */}
            <BraftEditor
              readOnly={isLook}
              placeholder='请输入内容'
              value={item.txt}
              onChange={e => {
                const arr = [...sectionArr]
                arr[index].txt = e
                setSectionArr(arr)
              }}
              imageControls={['remove']}
            />
          </div>
        ))}
      </div>
      <div className={classNames('noUpThumb', check && isTxtFlag ? 'noUpThumbAc' : '')}>
        {`请输入!`}
      </div>
    </div>
  )
}

export default forwardRef(ZRichTexts)