orchestra-app/src/school/save-share-image/index.tsx

import request from '@/helpers/request'
import {
  Button,
  closeToast,
  Icon,
  Image,
  showFailToast,
  showLoadingToast,
  showSuccessToast,
  showToast
} from 'vant'
import { defineComponent, onMounted, reactive } from 'vue'
import { useRoute } from 'vue-router'
import styles from './index.module.less'
import { postMessage, promisefiyPostMessage } from '@/helpers/native-message'
import html2canvas from 'html2canvas'
import { state as baseState } from '@/state'
import OQrcode from '@/components/o-qrcode'
import iconImage from './images/icon-image.png'
import iconWeichat from './images/icon-weichat.png'
import teacherTopBg from './images/teacher-top_bg.png'
import manageTopBg from './images/manage-top_bg.png'
import orchestraTopBg from './images/orchestra-top_bg.png'
import defaultLogo from '@/common/images/logo@2x.png'

export default defineComponent({
  name: 'save-share-image',
  setup() {
    const route = useRoute()
    const state = reactive({
      type: route.query.type as any,
      paramValue: 2,
      schoolName: '',
      schoolId: '',
      url: null as any,
      schoolLogo: '',
      loading: false
    })

    const imgs = reactive({
      saveLoading: false,
      image: null as any,
      shareLoading: false
    })
    const onSaveImg = async () => {
      // 判断是否在保存中...
      if (imgs.saveLoading) {
        return
      }
      imgs.saveLoading = true
      // 判断是否已经生成图片
      if (imgs.image) {
        saveImg()
      } else {
        const container: any = document.getElementById(`preview-container`)
        html2canvas(container, {
          allowTaint: true,
          useCORS: true,
          backgroundColor: null
        })
          .then(async (canvas) => {
            const url = canvas.toDataURL('image/png')
            imgs.image = url
            saveImg()
          })
          .catch(() => {
            closeToast()
            imgs.saveLoading = false
          })
      }
    }
    const onShare = () => {
      if (imgs.shareLoading) {
        return
      }
      imgs.shareLoading = true
      if (imgs.image) {
        openShare()
      } else {
        const container: any = document.getElementById(`preview-container`)
        html2canvas(container, {
          allowTaint: true,
          useCORS: true,
          backgroundColor: null
        })
          .then(async (canvas) => {
            const url = canvas.toDataURL('image/png')
            imgs.image = url
            openShare()
          })
          .catch(() => {
            closeToast()
            imgs.shareLoading = false
          })
      }
    }
    const openShare = () => {
      const image = imgs.image
      setTimeout(() => {
        imgs.shareLoading = false
      }, 100)
      if (image) {
        postMessage(
          {
            api: 'shareTripartite',
            content: {
              title: '',
              desc: '',
              image,
              video: '',
              type: 'image',
              // button: ['copy']
              shareType: 'wechat'
            }
          },
          (res: any) => {
            if (res && res.content) {
              showToast(res.content.message || (res.content.status ? '分享成功' : '分享失败'))
            }
          }
        )
      }
    }
    const saveImg = async () => {
      showLoadingToast({ message: '图片生成中...', forbidClick: true })
      setTimeout(() => {
        imgs.saveLoading = false
      }, 100)
      const res = await promisefiyPostMessage({
        api: 'savePicture',
        content: {
          base64: imgs.image
        }
      })
      if (res?.content?.status === 'success') {
        showSuccessToast('保存成功')
      } else {
        showFailToast('保存失败')
      }
    }

    // 获取当前用户所在的学校
    const getDetail = async () => {
      try {
        const schoolId = (baseState.user.data.schoolInfos || [])
          .map((item) => {
            return item.id
          })
          .join(',')

        const res = await request.get(`/api-school/school/detail/${schoolId}`, {})

        state.schoolName = res.data.name
        state.schoolId = res.data.id
        state.schoolLogo = res.data.logo
          ? res.data.logo + '@base@tag=imgScale&w=570?t=' + +new Date()
          : ''
        // 生成二维码
        if (state.type === 'teacher') {
          state.url =
            location.origin +
            '/orchestra-school/#/companion-teacher-register?id=' +
            res.data.id +
            '&name=' +
            res.data.name +
            '&t=' +
            +new Date()
        } else if (state.type === 'manage') {
          state.url =
            location.origin +
            '/orchestra-school/#/manage-teacher-register?id=' +
            res.data.id +
            '&name=' +
            res.data.name +
            '&t=' +
            +new Date()
        }
      } catch {
        //
      }
    }

    // 获取当前用户所在的学校
    const getOrchestraDetail = async () => {
      try {
        const res = await request.get('/api-school/orchestra/detail/' + route.query.id)
        state.schoolName = res.data.name
        state.schoolId = res.data.id
        state.schoolLogo = res.data.schoolLogo + '@base@tag=imgScale&w=570?t=' + +new Date()
        // 生成二维码

        state.url = window.location.origin + '/orchestra-student/#/preApply?id=' + route.query.id
      } catch {
        //
      }
    }

    onMounted(async () => {
      if (state.type === 'teacher') {
        document.title = '乐团伴学指导注册'
      } else if (state.type === 'manage') {
        document.title = '乐团管理老师注册'
      } else if (state.type === 'orchestra') {
        document.title = '乐团报名'
      }
      try {
        const { data } = await request.get('/api-school/open/paramConfig/queryByParamName', {
          requestType: 'form',
          params: {
            paramName: 'qr_code_expire_hours'
          }
        })
        state.paramValue = data.paramValue
      } catch {
        //
      }

      if (state.type === 'orchestra') {
        getOrchestraDetail()
      } else {
        getDetail()
      }
    })
    return () => (
      <div class={[styles.saveShareImage]}>
        {state.type === 'teacher' && <Image src={teacherTopBg} class={styles.topImage} />}
        {state.type === 'manage' && <Image src={manageTopBg} class={styles.topImage} />}
        {state.type === 'orchestra' && <Image src={orchestraTopBg} class={styles.topImage} />}
        <div
          class={[styles.shareContaienr, state.type === 'orchestra' && styles.orchestraContainer]}
        >
          {state.type !== 'orchestra' ? (
            <>
              <img
                class={[styles.schoolLogo]}
                src={state.schoolLogo || defaultLogo}
                crossorigin="anonymous"
                style={{
                  objectFit: 'cover'
                }}
              />
              <div class={styles.schoolName}>{state.schoolName}</div>
              <div class={styles.shareType}>
                邀请您成为
                <span>
                  {state.type === 'teacher' && '乐团伴学指导'}
                  {state.type === 'manage' && '乐团管理老师'}
                </span>
              </div>
            </>
          ) : (
            <>
              <div class={styles.schoolName}>乐团报名</div>
              <div class={styles.shareType}>{state.schoolName}</div>
            </>
          )}

          <div class={styles.qrcodeSection}>
            <OQrcode text={state.url} logoSize={'small'} size={'100%'} />
          </div>

          <div class={styles.memo}>扫描上方二维码完成资料填写</div>
          {state.type !== 'orchestra' && (
            <div class={styles.endTime}>
              二维码将在<span>{state.paramValue}小时后</span>失效，请及时登记
            </div>
          )}
        </div>

        <div class={styles.btnGroup}>
          <Button class={styles.btn} round block onClick={onSaveImg}>
            <Icon name={iconImage} class={styles.icon} />
            保存图片
          </Button>
          <Button class={styles.btn} round block onClick={onShare}>
            <Icon name={iconWeichat} class={styles.icon} />
            分享到微信
          </Button>
        </div>

        {!state.loading && (
          <div class={[styles.saveShareImage, styles.previewSection]} id="preview-container">
            {state.type === 'teacher' && <Image src={teacherTopBg} class={styles.topImage} />}
            {state.type === 'manage' && <Image src={manageTopBg} class={styles.topImage} />}
            {state.type === 'orchestra' && <Image src={orchestraTopBg} class={styles.topImage} />}
            <div
              class={[
                styles.shareContaienr,
                state.type === 'orchestra' && styles.orchestraContainer
              ]}
            >
              {state.type !== 'orchestra' ? (
                <>
                  <img
                    class={[styles.schoolLogo]}
                    src={state.schoolLogo || defaultLogo}
                    crossorigin="anonymous"
                    style={{
                      objectFit: 'cover'
                    }}
                  />
                  <div class={styles.schoolName}>{state.schoolName}</div>
                  <div class={styles.shareType}>
                    邀请您成为
                    <span>
                      {state.type === 'teacher' && '乐团伴学指导'}
                      {state.type === 'manage' && '乐团管理老师'}
                    </span>
                  </div>
                </>
              ) : (
                <>
                  <div class={styles.schoolName}>乐团报名</div>
                  <div class={styles.shareType}>{state.schoolName}</div>
                </>
              )}

              <div class={styles.qrcodeSection}>
                <OQrcode text={state.url} logoSize={'small'} size={'100%'} />
              </div>

              <div class={styles.memo}>扫描上方二维码完成资料填写</div>
              {state.type !== 'orchestra' && (
                <div class={styles.endTime}>
                  二维码将在<span>{state.paramValue}小时后</span>失效，请及时登记
                </div>
              )}
            </div>
          </div>
        )}
      </div>
    )
  }
})