/* eslint-disable vue/this-in-template */
<template>
  <div v-loading="loading" class="viewerContainer">
    <!-- <div class="viewerBanner" /> -->
    <div class="viewerContentWrapper">
      <div class="viewerLeftSidePanel">
        <div id="listWrapper" class="sidePanelBody">
          <div class="sidePanelThumbs">
            <el-tabs v-model="activeName" type="border-card">
              <el-tab-pane :label="$t('trials:dicom-show:nowStudy')" name="first">
                <div class="studyDesc">
                  {{ studyCode }}
                </div>
                <div class="studyDesc">
                  {{ description }}
                </div>
                <div v-if="seriesCount" class="studyDesc">
                  {{ modality }} : {{ seriesCount }} Series
                </div>
                <div class="viewerSidethumbs ps" style="position: relative;">
                  <div class="viewerSidethumbinner">
                    <div
                      v-for="(item, index) in seriesList"
                      :key="index"
                      :class="{'viewerSideActive': index==0}"
                      style="position: relative;margin-bottom:5px;border-radius: 2px;border: 1px solid #404040;"
                      series-type="current"
                      @click="showSeriesImage($event,index,item)"
                    >
                      <div class="viewernavigatorwrapper">
                        <el-image
                          class="image-preview"
                          style="height:72px;width:72px;"
                          :src="item.previewImageUrl"
                          fit="fill"
                        />
                        <div class="viewernavitextwrapper">
                          <div v-if="item.keySeries" style="padding: 1px;color:red">
                            Key Images
                          </div>
                          <div v-else style="padding: 1px;">
                            #{{ item.seriesNumber }}
                          </div>
                          <div v-show="item.instanceCount" style="padding: 1px;">
                            {{ item.modality }}: {{ item.instanceCount }} image
                          </div>
                          <div v-show="!item.keySeries && item.sliceThickness" style="padding: 1px;">
                            T: {{ item.sliceThickness }}
                          </div>
                          <div v-show="!item.keySeries &&item.description" style="width: 120px;white-space: nowrap;overflow: hidden;text-overflow: ellipsis;padding: 1x;">
                            {{ item.description }}
                          </div>
                          <div v-if="!item.keySeries" style="padding: 1px;">
                            {{ item.prefetchInstanceCount }}/{{ item.instanceCount }}
                          </div>

                        </div>
                      </div>
                      <div v-if="showDelete" @click.stop="">

                        <span style="font-size: 12px;">{{ $t('trials:audit:table:isReading') }}</span>
                        <el-switch
                          v-model="item.isReading"
                          size="mini"
                          @change="changeReadingStatus($event, item)"
                        />

                        <span style="font-size: 12px;">{{ $t('trials:audit:table:isDelete') }}</span>
                        <el-switch
                          v-model="item.isDeleted"
                          size="mini"
                          @change="changeDeleteStatus($event, item)"
                        />
                      </div>
                      <div v-if="item.prefetchInstanceCount>0 && item.prefetchInstanceCount<item.instanceCount">
                        <el-progress :percentage="parseInt(((item.prefetchInstanceCount/item.instanceCount)*100).toFixed(2))" />
                      </div>

                    </div>
                  </div>
                </div>
              </el-tab-pane>
            </el-tabs>
          </div>
        </div>
      </div>
      <div class="viewerContent">
        <dicom-viewer id="dicomViewer" ref="dicomViewer" style="height:100%" />
      </div>
      <!-- <div class="viewerRightSidePanel">
        <dicom-tools />
      </div> -->

    </div>

  </div>
</template>

<script>
import * as dicomParser from 'dicom-parser'
import * as cornerstone from 'cornerstone-core'
import * as cornerstoneWADOImageLoader from 'cornerstone-wado-image-loader'
import dicomViewer from '@/components/Dicom/DicomViewer'
import { getStudyInfo, getSeriesList } from '@/api/reading'
import { getInstanceList, setSeriesStatus } from '@/api/trials'

import requestPoolManager from '@/utils/request-pool'
import store from '@/store'
import { changeURLStatic } from '@/utils/history.js'
cornerstoneWADOImageLoader.external.dicomParser = dicomParser
cornerstoneWADOImageLoader.external.cornerstone = cornerstone
const maximumSizeInBytes = 1024 * 1024 * 1024 // 1 GB
export default {
  components: {
    'dicom-viewer': dicomViewer
  },

  data: function() {
    return {
      trialId: '',
      studyId: '',
      tpCode: '',
      baseLine: null,
      studyCode: '',
      modality: '',
      description: '',
      seriesCount: 0,
      seriesList: [],
      currentSeriesIndex: -1,
      arr: [],
      activeName: 'first',
      tpList: [],
      visitNum: 0,
      labels: {},
      type: '',
      currentRelationIndex: [],
      cachedImages: [],
      isLoadedAll: false,
      studyList: {},
      currentStudy: '',
      previewImageCount: 0,
      relationStudyList: [],
      isStartLoad: false,
      firstInstanceId: '',
      showDelete: false,
      loading: false,
      imageList: []
    }
  },
  created: function() {
    this.type = this.$router.currentRoute.query.type ? this.$router.currentRoute.query.type : ''

    this.visitNum = this.$router.currentRoute.query.visitNum ? parseInt(this.$router.currentRoute.query.visitNum) : 0
    cornerstone.events.addEventListener('cornerstoneimageloaded', this.cornerstoneImageLoaded)
    // cornerstone.events.addEventListener('datasetscachechanged', this.datasetsCacheChanged)
    if (this.$router.currentRoute.query.TokenKey) {
      store.dispatch('user/setToken', this.$router.currentRoute.query.TokenKey)
      changeURLStatic('TokenKey', '')
    }
    this.studyId = this.$router.currentRoute.query.studyId
    if (this.type === 'Series') {
      // this.initStudy()
      this.showDelete = parseInt(this.$router.currentRoute.query.showDelete)
      this.initSeries()
    } else if (this.type === 'Study') {
      this.showDelete = parseInt(this.$router.currentRoute.query.showDelete)
      this.loadStudy()
    } else if (this.type === 'Share') {
      this.loadStudy()
    }
  },
  beforeDestroy() {
    requestPoolManager.stopTaskTimer()
  },
  methods: {
    loadStudy() {
      var scope = this
      getStudyInfo(scope.studyId).then(data => {
        if (data.IsSuccess) {
          scope.studyCode = data.Result.StudyCode
          scope.modality = data.Result.Modalities
          scope.seriesCount = data.Result.SeriesCount
          scope.description = data.Result.Description
          var url = `/series/list/${scope.studyId}`
          scope.getSeriesList(url)
        }
      })
    },
    getSeriesList(url) {
      var scope = this
      getSeriesList(url).then(data => {
        if (data.IsSuccess) {
          const { Result } = data
          var seriesList = []
          Result.forEach(function(item) {
            const imageIds = []
            item.InstancePathList.forEach((path) => {
              imageIds.push(`wadouri:${localStorage.getItem('location') !== 'USA' ? scope.OSSclientConfig.basePath : scope.OSSclientConfig.basePath}${path}`)
            })
            var subjectVisitId = scope.$router.currentRoute.query.subjectVisitId
            var studyId = scope.$router.currentRoute.query.studyId
            var trialId = scope.$router.currentRoute.query.trialId
            seriesList.push({
              trialId,
              subjectVisitId,
              studyId,
              imageIds: imageIds,
              seriesId: item.Id,
              seriesUid: item.SeriesInstanceUid,
              seriesNumber: item.SeriesNumber,
              sliceThickness: item.SliceThickness,
              modality: item.Modality,
              description: item.Description,
              isReading: item.IsReading,
              isDeleted: item.IsDeleted,
              previewImageUrl: item.ImageResizePath ? scope.OSSclientConfig.basePath + item.ImageResizePath : `/api/series/preview/${item.Id}`,
              instanceCount: item.InstanceCount,
              prefetchInstanceCount: 0,
              hasLabel: item.HasLabel,
              keySeries: item.KeySeries,
              tpCode: scope.tpCode,
              loadStatus: false,
              imageloadedArr: []
            })
          })
          scope.seriesList = seriesList
          if (scope.seriesList.length > 0) {
            scope.$refs.dicomViewer.loadImageStack(scope.seriesList[0], scope.labels[scope.tpCode])
            scope.firstInstanceId = scope.seriesList[0].imageIds[0]
          }
        }
      })
    },
    initSeries() {
      this.studyCode = this.$router.currentRoute.query.studyCode
      this.modality = this.$router.currentRoute.query.modality
      this.seriesCount = 1
      this.description = this.$router.currentRoute.query.description
      var seriesId = this.$router.currentRoute.query.seriesId
      var seriesNumber = this.$router.currentRoute.query.seriesNumber
      var subjectVisitId = this.$router.currentRoute.query.subjectVisitId
      var studyId = this.$router.currentRoute.query.studyId
      var trialId = this.$router.currentRoute.query.trialId
      getInstanceList(seriesId).then(res => {
        if (!res.Result || (res.Result && res.Result.length === 0)) return
        var seriesInstanceUid = res.Result[0].SeriesInstanceUid
        var sliceLocation = res.Result[0].SliceLocation
        var isReading = res.Result[0].IsReading
        var isDeleted = res.Result[0].IsDeleted
        var seriesList = []
        var imageIds = []
        res.Result.forEach(instance => {
          imageIds.push(`wadouri:${localStorage.getItem('location') !== 'USA' ? scope.OSSclientConfig.basePath : scope.OSSclientConfig.basePath}${path}`)
        })
        seriesList.push({
          trialId,
          subjectVisitId,
          studyId,
          imageIds: imageIds,
          seriesId: seriesId,
          seriesUid: seriesInstanceUid,
          seriesNumber: seriesNumber,
          sliceThickness: sliceLocation,
          modality: this.modality,
          description: this.description,
          isReading,
          isDeleted,
          previewImageUrl: res.OtherInfo.ImageResizePath ? scope.OSSclientConfig.basePath + res.OtherInfo.ImageResizePath : res.OtherInfo.ImageResizePath,
          instanceCount: res.Result.length,
          prefetchInstanceCount: 0,
          loadStatus: false,
          imageloadedArr: []
        })
        this.seriesList = seriesList
        if (this.seriesList.length > 0) {
          this.$nextTick(() => {
            this.loadAllImages()
            this.$refs.dicomViewer.loadImageStack(this.seriesList[0])
            this.firstInstanceId = this.seriesList[0].imageIds[0]
          })
        }
      })
    },
    showSeriesImage(e, seriesIndex, series) {
      // if (seriesIndex === this.currentSeriesIndex) return
      const element = e.currentTarget
      const elements = document.querySelectorAll('[series-type]')
      Array.from(elements).forEach((e) => {
        e.classList.remove('viewerSideActive')
      })
      element.classList.add('viewerSideActive')
      this.currentSeriesIndex = seriesIndex
      this.$refs.dicomViewer.loadImageStack(this.seriesList[seriesIndex])
      if (!series.loadStatus) {
        series.isLoading = true
        var p = new Date().getTime()
        series.imageIds.map((imageId, i) => {
          var priority = ''
          if (i === 0) {
            priority = new Date(new Date().setHours(23, 59, 59, 999)).getTime()
          } else {
            priority = p - 1
          }
          this.imageList.push({ imageId: imageId, seriesId: series.seriesId, priority })
        })
      }
    },
    initStudy() {
      this.studyCode = this.$router.currentRoute.query.studyCode
      this.modality = this.$router.currentRoute.query.modality
      this.seriesCount = 1
      this.description = this.$router.currentRoute.query.description
      if (this.$router.currentRoute.query.series) {
        const seriesInfo = JSON.parse(this.$router.currentRoute.query.series)
        var seriesList = []
        const imageIds = []
        seriesInfo.InstancePathList.forEach((path) => {
          imageIds.push(`wadouri:${localStorage.getItem('location') !== 'USA' ? this.OSSclientConfig.basePath : this.OSSclientConfig.basePath}${path}`)
        })
        seriesList.push({
          imageIds: imageIds,
          seriesId: seriesInfo.Id,
          seriesUid: seriesInfo.SeriesInstanceUid,
          seriesNumber: seriesInfo.SeriesNumber,
          sliceThickness: seriesInfo.SliceThickness,
          modality: seriesInfo.Modality,
          description: seriesInfo.Description,
          previewImageUrl: seriesInfo.ImageResizePath ? this.OSSclientConfig.basePath + seriesInfo.ImageResizePath : `/api/series/preview/${seriesInfo.Id}`,
          instanceCount: seriesInfo.InstanceCount,
          prefetchInstanceCount: 0,
          hasLabel: seriesInfo.HasLabel,
          keySeries: seriesInfo.KeySeries,
          loadStatus: false,
          imageloadedArr: []
        })
        this.seriesList = seriesList
        if (this.seriesList.length > 0) {
          this.$nextTick(() => {
            this.loadAllImages()
            this.$refs.dicomViewer.loadImageStack(this.seriesList[0])
            this.firstInstanceId = this.seriesList[0].imageIds[0]
          })
        }
      }
    },
    deleteSeries() {
      this.loading = true
      var subjectVisitId = this.$router.currentRoute.query.subjectVisitId
      var studyId = this.$router.currentRoute.query.studyId
      var seriesId = this.$router.currentRoute.query.seriesId
      // trialId, subjectVisitId, studyId, seriesId, state
      setSeriesStatus(this.trialId, subjectVisitId, studyId, seriesId, 5).then(res => {
        this.loading = false
        if (res.IsSuccess) {
          this.$message.success(this.$t('common:message:savedSuccessfully'))

          window.opener.postMessage({ type: 'refreshSeriesList', data: '' }, window.location)
        }
      }).catch(() => { this.loading = false })
    },
    changeReadingStatus(callback, data) {
      let statusStr = ''
      if (callback) {
        statusStr = this.$t('trials:audit:label:setSeriesReading')
        data.isReading = false
      } else {
        statusStr = this.$t('trials:audit:label:setSeriesNotReading')
        data.isReading = true
      }
      var message = this.$t('trials:audit:message:changeSeriesStatus').replace('xxx', statusStr)
      this.$confirm(message, {
        distinguishCancelAndClose: true,
        type: 'warning'
      }).then(() => {
        const state = data.isReading ? 1 : 2
        this.loading = true

        setSeriesStatus(data.trialId, data.subjectVisitId, data.studyId, data.seriesId, state).then(res => {
          this.loading = false
          if (res.IsSuccess) {
            data.isReading = !data.isReading
            this.$message.success(this.$t('common:message:savedSuccessfully'))
            window.opener.postMessage({ type: 'refreshSeriesList', data: '' }, window.location)
          }
        }).catch(() => { this.loading = false })
      }).catch(() => {})
    },
    changeDeleteStatus(callback, data) {
      let statusStr = ''
      if (callback) {
        statusStr = this.$t('trials:audit:label:setSeriesDeleted')
        data.isDeleted = false
      } else {
        statusStr = this.$t('trials:audit:label:setSeriesNotDelete')
        data.isDeleted = true
      }
      var message = this.$t('trials:audit:message:changeSeriesStatus').replace('xxx', statusStr)
      this.$confirm(message, {
        distinguishCancelAndClose: true,
        type: 'warning'
      }).then(() => {
        const state = data.isDeleted ? 5 : 4
        this.loading = true
        // var trialId = this.$router.currentRoute.query.trialId
        // var subjectVisitId = this.$router.currentRoute.query.subjectVisitId
        // var studyId = this.$router.currentRoute.query.studyId
        // var seriesId = this.$router.currentRoute.query.seriesId
        setSeriesStatus(data.trialId, data.subjectVisitId, data.studyId, data.seriesId, state).then(res => {
          this.loading = false
          if (res.IsSuccess) {
            data.isDeleted = !data.isDeleted
            this.$message.success(this.$t('common:message:savedSuccessfully'))
            window.opener.postMessage({ type: 'refreshSeriesList', data: '' }, window.location)
          }
        }).catch(() => { this.loading = false })
      }).catch(() => {})
    },
    loadAllImages() {
      var priority = new Date().getTime()
      this.seriesList.forEach(series => {
        series.imageIds.forEach(imageId => {
          priority--
          // this.load(imageId, series.seriesId, priority)
          this.imageList.push({ imageId: imageId, seriesId: series.seriesId, priority })
        })
      })
      if (this.imageList.length > 0) {
        this.loopLoad()
      }
    },
    loopLoad() {
      if (this.imageList.length > 0) {
        requestPoolManager.startTaskTimer()
        this.imageList.map(image => {
          requestPoolManager.loadAndCacheImagePlus(image.imageId, image.seriesId, image.priority).then(res => {
            this.imageLoaded(image, res.data.string('x0020000e'))
          })
        })

        this.imageList = []
      }
    },
    load(imageId, seriesId, priority = 999) {
      return new Promise((resolve, reject) => {
        requestPoolManager.loadAndCacheImagePlus(imageId, seriesId, priority).then(res => {
          if (!res) return
          this.imageLoaded(imageId, res.data.string('x0020000e'))
          resolve(res)
        }).catch(e => {
          reject(e)
        })
      })
    },
    imageLoaded(imageId, seriesUid) {
      var seriesIndex = -1
      for (let i = 0; i < this.seriesList.length; ++i) {
        if (this.seriesList[i].seriesUid === seriesUid) {
          seriesIndex = i
          break
        }
      }
      if (seriesIndex < 0) return

      const imageIdIndex = this.seriesList[seriesIndex].imageIds.indexOf(imageId)
      if (imageIdIndex < 0) return
      if (this.seriesList[seriesIndex].imageloadedArr.indexOf(imageId) < 0) {
        ++this.seriesList[seriesIndex].prefetchInstanceCount
        this.seriesList[seriesIndex].imageloadedArr.push(imageId)

        if (this.seriesList[seriesIndex].prefetchInstanceCount >= this.seriesList[seriesIndex].instanceCount) {
          this.seriesList[seriesIndex].prefetchInstanceCount = this.seriesList[seriesIndex].instanceCount
          // 设置当前序列状态为已下载完成
          this.seriesList[seriesIndex].loadStatus = true
          // if (!this.isLoadedAll) {
          //   this.loadAllImages()
          // }
        }
      }
    },
    datasetsCacheChanged(e) {
      // const uri = e.detail.uri
      const cacheInfo = e.detail.cacheInfo
      const cacheSizeInBytes = cacheInfo.cacheSizeInBytes
      if (cacheSizeInBytes >= maximumSizeInBytes) {
        // this.unload()
      }
    },
    unload() {
      this.cachedImages.sort(this.compare)
      cornerstoneWADOImageLoader.wadouri.dataSetCacheManager.unload(this.cachedImages[0].uri)
      this.cachedImages.splice(0, 1)
    },
    compare(a, b) {
      if (a.timeStamp > b.timeStamp) {
        return -1
      }
      if (a.timeStamp < b.timeStamp) {
        return 1
      }

      return 0
    },
    cornerstoneImageLoaded(e) {
      console.log('dicom-study')
      if (this.firstInstanceId === e.detail.image.imageId && !this.isStartLoad) {
        // 初始化图像加载完成时，自动下载
        this.loadAllImages()
        this.isStartLoad = true
        // requestPoolManager.executeTask()
      }
      const uri = e.detail.image.sharedCacheKey
      const index = this.cachedImages.findIndex(item => item.uri === uri)
      if (index === -1) {
        this.cachedImages.push({ uri: uri, timestamp: new Date().getTime() })
      } else {
        this.cachedImages[index].timestamp = new Date().getTime()
      }
      // loadedDataSets[uri].dataSet.byteArray.length
      // console.log(this.cachedImages.length)
      // console.log(cornerstoneWADOImageLoader.wadouri.dataSetCacheManager.getInfo().cacheSizeInBytes)
      // const imageId = e.detail.image.imageId
      var imageId = e.detail.image.imageId
      var seriesUid = e.detail.image.data.string('x0020000e')
      var seriesIndex = -1
      for (let i = 0; i < this.seriesList.length; ++i) {
        if (this.seriesList[i].seriesUid === seriesUid) {
          seriesIndex = i
          break
        }
      }
      if (seriesIndex < 0) return

      const imageIdIndex = this.seriesList[seriesIndex].imageIds.indexOf(imageId)
      if (imageIdIndex < 0) return
      if (this.seriesList[seriesIndex].imageloadedArr.indexOf(imageId) < 0) {
        ++this.seriesList[seriesIndex].prefetchInstanceCount
        this.seriesList[seriesIndex].imageloadedArr.push(imageId)

        if (this.seriesList[seriesIndex].prefetchInstanceCount >= this.seriesList[seriesIndex].instanceCount) {
          this.seriesList[seriesIndex].prefetchInstanceCount = this.seriesList[seriesIndex].instanceCount
          // 设置当前序列状态为已下载完成
          this.seriesList[seriesIndex].loadStatus = true
          // if (!this.isLoadedAll) {
          //   this.loadAllImages()
          // }
        }
      }
    }
  }

}
</script>

<style>
.viewerContainer .el-tabs--border-card{
  background:none;
  border: none;
}
.viewerContainer .el-tabs__item{
  height: 35px;
  line-height: 35px;
}
.viewerContainer .el-tabs--border-card>.el-tabs__content{
  padding: 5px 0px 0px 0px;
}
.viewerContainer ::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}
.viewerContainer ::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background: #d0d0d0;
}
.viewerContainer .relationVisit{
  line-height: 20px;
  cursor: pointer;
}
  .viewerContainer{
    display: block;
    height: 100%;
    margin-left: auto;
    margin-right: auto;
    background-color: #444;
    overflow: hidden;
  }
.viewerContainer  .viewerBanner {
    background: linear-gradient(0,#444,#222);
    min-height: 28px;
    font-size: 16px;
    margin: 0;
    height: 30px;
    padding-top: 0;
    padding-left: 5px;
    padding-right: 5px;
    font-weight: bold;
}
.viewerContainer .viewerContentWrapper {
  display: flex;
  flex-direction: row;
    width: 100%;
    padding: 5px;
    /* height: 95%; */
    height: 99%;
    overflow: hidden;
    text-overflow: clip;
    white-space: nowrap;
}
.viewerContainer .viewerContentWrapper>div {
    display: inline-block;
    white-space: normal;
}
.viewerContainer .viewerLeftSidePanel {
    width: 215px;
    background-color: #323232;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    margin-right: 2px;
    color: #D0D0D0;
    overflow-y: auto;
}
.viewerContainer .viewerContentWrapper>div>.sidePanelBody {
    background: rgba(50,50,50,1);
    word-break: break-all;
    display: table;
    width: 100%;
    border: 1px solid #3e3f3a;
}
.viewerContainer .viewerContentWrapper>div>div.sidePanelBody>div {
    width: 100%;
    height: 100%;
}
.viewerContainer .studyDesc{
  font-weight: bold;
  font-size: 13px;
  text-align: center;
  background: rgb(88 84 83);
  color: #d0d0d0;
  padding: 2px;
}
.viewerContainer .ps {
    overflow: hidden !important;
    overflow-anchor: none;
    -ms-overflow-style: none;
    touch-action: auto;
    -ms-touch-action: auto;
}
.viewerContainer .viewerLeftSidePanel .viewernavigatorwrapper {
    display: flex;
    width: 210px;
    height: 84px;
    padding: 1px 2px 1px 8px;
    margin: 6px 0 6px 1px;
    /* border-radius: 2px;
    border: 1px solid #404040; */
}
.viewerContainer .viewernavigatorwrapper .el-progress__text{
  display: none;
}
.viewerContainer .viewernavigatorwrapper .el-progress-bar{
  padding-right:0px;
}
.viewerContainer .ui-draggable-handle {
    -ms-touch-action: none;
    touch-action: none;
}
.viewerContainer .viewerLeftSidePanel .image-preview {
    border: 2px solid #252525;
    cursor: pointer;
}
.viewerContainer .viewerLeftSidePanel .viewernavitextwrapper {
    /* width: 120px;
    height: 80px; */
    flex:1;
    padding: 3px 1px 3px 4px;
    vertical-align: top;
    font-size: 12px;
}
.viewerContainer .viewerLeftSidePanel .viewerlabelwrapper {
    width: 20px;

    font-size: 12px;
}
.viewerContainer .viewerSideActive {
    background: #16477b;
    background: #16477b80;
    border: 1px solid #23527b;
}
.viewerContainer .viewerContent {
    flex: 1;
    height: 100%;
    display: block;
    background-color: black;
    color: #D0D0D0;
    font-size: 13px;
}
/* .viewerRightSidePanel {
    width: 300px;
    height: 100%;
    background-color: #323232;
    margin: 0;
    padding: 0;
    margin-left: 2px;
    border: 1px solid blueviolet;
    color: #D0D0D0;
    font-size: 13px;
} */
</style>