<template>
   <div
      class="creation"
      :style="{
         '--heightA': state.heightA + 'px',
         '--navBarHeight': navBarHeight + 'px',
         '--creationHeight': creationHeight ? creationHeight + 'px' : '100vh'
      }"
   >
      <div class="creationBg"></div>
      <van-sticky>
         <van-nav-bar
            v-if="browser().isApp"
            class="nav"
            :class="{ isScreenScroll: isScreenScroll }"
            :fixed="false"
            title="作品详情"
            left-arrow
            @click-left="goBack"
         />
         <div v-else class="logoDownload" :class="{ isShareScreenScroll: isScreenScroll }">
            <img :src="isScreenScroll ? require('./img/logo1.png') : require('./img/logo.png')" class="logoImg" />
            <div class="logTit" @click="handlerDownLoad">下载App</div>
         </div>
      </van-sticky>
      <div v-if="isEmpty" class="isEmpty">
         <MEmpty msg="作品已删除" />
      </div>
      <template v-else>
         <div class="singerBox">
            <div class="musicSheetName">
               <van-notice-bar :text="state.musicDetail.musicSheetName" background="none" />
            </div>
            <div class="singerName">演奏：{{ state.musicDetail.username }}</div>
         </div>
         <van-sticky :offset-top="44 + navBarHeight" :z-index="200">
            <div class="playBox" ref="playBoxDom">
               <div
                  :class="[
                     'playSection',
                     plyrState.mediaTimeShow && 'mediaTimeShow',
                     isLandscapeScreen && 'isLandscapeScreen',
                     state.playType === 'Video' && 'videoType'
                  ]"
                  id="playMediaSection"
                  @click="handlerClickPlay"
               >
                  <!-- 横屏 -->
                  <div v-if="isLandscapeScreen" class="backBox">
                     <img class="backImg" :src="require('./img/back.png')" @click="handlerBack" />
                     <div class="musicDetail">
                        <div class="musicSheetName">
                           <van-notice-bar :text="state.musicDetail.musicSheetName" background="none" />
                        </div>
                        <div class="username">演奏：{{ state.musicDetail.username }}</div>
                     </div>
                  </div>
                  <!-- audio -->
                  <div class="audioBox" v-if="state.playType === 'Audio'">
                     <canvas class="audioVisualizer" id="audioVisualizer"></canvas>
                     <audio
                        crossorigin="anonymous"
                        id="audioMediaSrc"
                        :src="state.musicDetail.videoUrl"
                        controls="false"
                        preload="metadata"
                        playsinline
                        webkit-playsinline
                     />
                     <img src="./img/ty.png" class="tyBg" />
                     <div class="audioBoxBg">
                        <div :class="['audioPan', plyrState.playIngShow ? 'imgRotate' : '']">
                           <van-image class="audioImg" :src="state.musicDetail.img || require('./img/music_bg.png')" />
                        </div>
                        <i class="audioPoint"></i>
                        <i :class="['audioZhen', plyrState.playIngShow && 'active']"></i>
                     </div>
                  </div>
                  <!-- video -->
                  <video
                     v-if="state.playType === 'Video'"
                     id="videoMediaSrc"
                     class="videoBox"
                     :src="state.musicDetail.videoUrl"
                     :data-poster="state.musicDetail.videoImg || require('./img/videoBg.png')"
                     :poster="state.musicDetail.videoImg || require('./img/videoBg.png')"
                     preload="metadata"
                     playsinline
                     webkit-playsinline
                     x5-playsinline
                  />
                  <!-- 工具 -->
                  <div :class="['playLarge', !plyrState.mediaTimeShow && plyrState.playIngShow && 'playIngShow']"></div>
                  <div class="mediaTimeCon">
                     <div class="mediaTime">
                        <div>
                           {{ getSecondRPM(plyrState.currentTime) }}
                        </div>
                        <div class="note">/</div>
                        <div class="duration">
                           {{ getSecondRPM(plyrState.duration) }}
                        </div>
                     </div>
                  </div>
                  <div class="landscapeScreen" @click="handlerLandscapeScreen"></div>
                  <!-- 谱面 -->
                  <div v-if="staffState.staffSrc" :class="['staffBoxCon', staffState.isShow && 'staffBoxShow']">
                     <div
                        class="staffBox"
                        :style="{
                           '--staffBoxHeight': staffState.height
                        }"
                     >
                        <div class="mask"></div>
                        <iframe ref="staffDom" class="staff" frameborder="0" :src="staffState.staffSrc"></iframe>
                     </div>
                  </div>
               </div>
            </div>
         </van-sticky>
         <div class="musicSection musicShareSection">
            <div class="avatarInfoBox">
               <div class="avatar">
                  <van-image class="userLogo" :src="state.musicDetail.avatar" />
                  <div class="infoCon">
                     <div class="info">
                        <span class="userName">{{ state.musicDetail.username }}</span>
                        <img :src="require('./img/icon-member.png')" v-if="state.musicDetail.vipFlag" class="iconMember" />
                     </div>
                     <div class="sub">
                        {{
                           (state.musicDetail.subjectName || "") + " " + (state.musicDetail.currentGradeNum ? getGradeCh(state.musicDetail.currentGradeNum - 1) : "")
                        }}
                     </div>
                  </div>
               </div>
               <div class="linkes" @click="onStarChange">
                  <img src="./img/icon-zan-active.png" v-if="state.musicDetail.starFlag" class="iconZan" />
                  <img src="./img/icon-zan.png" v-else class="iconZan" />
                  <span>{{ state.musicDetail.likeNum }}</span>
               </div>
            </div>
            <textEllipsis class="textEllipsis" :text="state.musicDetail.desc || ''" />
         </div>
         <div class="likeSection likeShareSection">
            <div class="likeTitle">推荐作品</div>
            <template v-if="state.listState.dataShow">
               <van-list :finished="state.listState.finished" :finishedText="' '" :immediateCheck="false">
                  <van-cell
                     v-for="(item, index) in state.list"
                     :key="index"
                     :class="['likeShareItem', index === state.list.length - 1 && 'likeShareItemLast']"
                     :border="false"
                     @click="onDetail(item)"
                  >
                     <template #icon>
                        <div class="audioImgBox">
                           <img :src="require('./img/audio-pan.png')" class="audioPan" crossorigin="anonymous" />
                           <img :src="item.img || require('./share-model/images/music-bg.png')" class="muploader" crossorigin="anonymous" />
                           <img
                              class="imgLabel"
                              :src="
                                 item.videoUrl && item.videoUrl.lastIndexOf('mp4') !== -1
                                    ? require('./share-model/images/videoLabel.png')
                                    : require('./share-model/images/audioLabel.png')
                              "
                           />
                        </div>
                     </template>
                     <template #title>
                        <div class="userInfo">
                           <div class="musicSheetName van-ellipsis">{{ item.musicSheetName }}</div>
                           <div class="usernameCon">
                              <div class="likeNum">
                                 <img :src="require('./img/icon-zan-active.png')" />
                                 <span>{{ item.likeNum }}</span>
                              </div>
                              <div class="username van-ellipsis">{{ item.username }}</div>
                           </div>
                        </div>
                     </template>
                     <template #default>
                        <div class="time">
                           <img :src="require('./img/play.png')" class="playImg" />
                        </div>
                     </template>
                  </van-cell>
               </van-list>
               <div v-if="!state.listState.finished || state.params.page > 2" class="btnImg">
                  <img @click="handleChangeList" @touchstart="() => {}" :src="require('./img/btn.png')" />
               </div>
            </template>
            <MEmpty class="mEmpty" v-else msg="暂无作品" style="margin-bottom: 0.5rem" />
         </div>
         <div class="upward shareUpward" v-show="!isScreenScroll">
            <img :src="require('./img/upward.png')" />
         </div>
      </template>
      <van-popup v-model="loginStatus" style="background: transparent; overflow: inherit">
         <LoginModel @close="() => (this.loginStatus = false)" @confirm="onConfirm" />
      </van-popup>
      <Loading v-if="!staffState.isShow"></Loading>
      <div
         v-if="wxStatus"
         class="wxpopup"
         @click="
            () => {
               wxStatus = false
            }
         "
      >
         <img src="./img/wx_bg.png" alt="" />
      </div>
   </div>
</template>

<script>
import dayjs from "dayjs"
import { browser, getSecondRPM, getGradeCh, validStudentUrl } from "@/common/common"
import { postMessage } from "@/helpers/native-message"
import { api_openUserMusicPage, api_userMusicStar, api_openUserMusicDetail } from "./api"
import audioVisualDraw, { vaildMusicScoreUrl } from "./audioVisualDraw"
import textEllipsis from "./textEllipsis"
import Loading from "./loading"
import "plyr/dist/plyr.css"
import Plyr from "plyr"
import MEmpty from "@/components/MEmpty"
import LoginModel from "./login-model"
export default {
   name: "creation",
   data() {
      return {
         id: this.$route.query.id,
         loginTag: false, // 是否登录标识
         loginStatus: false,
         isEmpty: false,
         wxStatus: false,
         state: {
            playType: "", // 播放类型
            musicDetail: {},
            isClick: false,
            list: [],
            listState: {
               dataShow: true, // 判断是否有数据
               loading: false,
               finished: false
            },
            params: {
               page: 1,
               rows: 4
            },
            _plrl: null,
            heightA: 0
         },
         plyrState: {
            duration: 0,
            currentTime: 0,
            mediaTimeShow: false,
            playIngShow: true
         },
         isLandscapeScreen: false,
         isScreenScroll: false,
         navBarHeight: 0,
         staffState: {
            staffSrc: "",
            isShow: false,
            height: "initial",
            speedRate: 1,
            musicRenderType: "staff",
            partIndex: 0
         },
         creationHeight: 0
      }
   },
   components: {
      textEllipsis,
      MEmpty,
      Loading,
      LoginModel
   },
   methods: {
      getGradeCh,
      getSecondRPM,
      browser,
      onDayjs(time) {
         return dayjs(time).format("YYYY-MM-DD HH:mm")
      },
      goBack() {
         if (browser().isApp) {
            this.setStatusBarTextColor(false)
            postMessage({ api: "setBarStatus", content: { status: 1, backButtonHidden: 0 } })
            postMessage({
               api: "back"
            })
         } else {
            this.$router.back()
         }
      },
      onDetail(item) {
         this.$router.push({
            path: "/shareCreation",
            query: {
               id: item.id
            }
         })
      },
      // 点赞
      async onStarChange() {
         try {
            await api_userMusicStar({
               userMusicId: this.id,
               star: !this.state.musicDetail.starFlag
            })

            this.state.musicDetail.starFlag = !this.state.musicDetail.starFlag
            if (this.state.musicDetail.starFlag) {
               this.state.musicDetail.likeNum += 1
            } else {
               this.state.musicDetail.likeNum -= 1
            }
         } catch (e) {
            //
            if (e.code === 403) {
               this.loginStatus = true
            }
         }
      },
      async onConfirm(val) {
         this.loginTag = val
         this.loginStatus = false
         const { data } = await api_openUserMusicDetail(this.id)
         this.state.musicDetail = data
      },
      async getStarList() {
         try {
            if (this.state.isClick) return
            this.state.isClick = true
            const res = await api_openUserMusicPage({
               type: "FORMAL",
               exclusionId: this.id,
               sort: 1,
               ...this.state.params
            })
            this.state.listState.loading = false
            const result = res.data || {}
            // 处理重复请求数据
            // if (this.state.list.length > 0 && result.current === 1) {
            //    return
            // }
            this.state.list = result.rows || []

            this.state.listState.finished = result.current >= result.pages
            this.state.params.page = result.current + 1
            this.state.listState.dataShow = this.state.list.length > 0
            this.state.isClick = false
         } catch {
            this.state.listState.dataShow = false
            this.state.listState.finished = true
            this.state.isClick = false
         }
      },
      handleChangeList() {
         if (this.state.listState.finished) {
            this.state.listState.finished = false
            this.state.params.page = 1
            this.getStarList()
         } else {
            this.getStarList()
         }
      },
      async init() {
         /* 初始化请求 */
         try {
            const res = await api_openUserMusicDetail(this.id)
            this.state.musicDetail = res.data || {}
            try {
               const jsonConfig = JSON.parse(res.data.jsonConfig)
               jsonConfig.speedRate && (this.staffState.speedRate = jsonConfig.speedRate)
               jsonConfig.musicRenderType && (this.staffState.musicRenderType = jsonConfig.musicRenderType)
               jsonConfig["part-index"] && (this.staffState.partIndex = jsonConfig["part-index"])
            } catch {}
            // 五线谱
            this.initStaff()
            this.getStarList()
            // 判断是视频还是音频
            if (res.data.videoUrl.lastIndexOf("mp4") !== -1) {
               this.state.playType = "Video"
            } else {
               this.state.playType = "Audio"
            }
            this.$nextTick(() => {
               this.initMediaPlay()
            })
         } catch (e) {
            this.staffState.isShow = true
            if (e.code === 999) {
               this.isEmpty = true
            }
         }
      },
      // 初始化 媒体播放
      initMediaPlay() {
         const { playStaff, pauseStaff, updateProgressStaff } = this.staffMoveInstance()
         const id = this.state.playType === "Audio" ? "#audioMediaSrc" : "#videoMediaSrc"
         this.state._plrl = new Plyr(id, {
            controls: ["play", "progress", "current-time", "duration"],
            fullscreen: {
               enabled: false,
               fallback: false
            }
         })
         const player = this.state._plrl
         // 创建音波数据
         if (this.state.playType === "Audio") {
            const audioDom = document.querySelector("#audioMediaSrc")
            const canvasDom = document.querySelector("#audioVisualizer")
            const { pauseVisualDraw, playVisualDraw } = audioVisualDraw(audioDom, canvasDom)
            player.on("play", () => {
               playVisualDraw()
            })
            player.on("pause", () => {
               pauseVisualDraw()
            })
         }
         player.on("timeupdate", () => {
            this.plyrState.currentTime = player.currentTime
         })
         player.on("play", () => {
            this.plyrState.playIngShow = false
            playStaff()
         })
         player.on("pause", () => {
            this.plyrState.playIngShow = true
            pauseStaff()
         })
         player.on("ended", () => {
            if (this.plyrState.mediaTimeShow) return
            player.currentTime = 0
            if (!player.playing) {
               setTimeout(() => {
                  updateProgressStaff(player.currentTime)
               }, 100)
            }
         })
         // 处理按压事件
         const handleStart = () => {
            if (this.isLandscapeScreen.value) {
               return
            }
            this.plyrState.duration = player.duration
            this.plyrState.mediaTimeShow = true
         }
         // 处理松开事件
         const handleEnd = () => {
            this.plyrState.mediaTimeShow = false
            // 暂停的时候调用
            if (!player.playing) {
               updateProgressStaff(player.currentTime)
            }
         }
         const progressDom = document.querySelector("#playMediaSection .plyr__controls .plyr__progress__container")
         progressDom.addEventListener("mousedown", handleStart)
         progressDom.addEventListener("touchstart", handleStart)
         progressDom.addEventListener("mouseup", handleEnd)
         progressDom.addEventListener("touchend", handleEnd)
      },
      // 初始化五线谱
      initStaff() {
         const src = `${vaildMusicScoreUrl()}/gym-music-score/#/simple-detail?id=${this.state.musicDetail.musicSheetId}&musicRenderType=${
            this.staffState.musicRenderType
         }&part-index=${this.staffState.partIndex}`
         //const src = `http://192.168.3.122:3000/gym-music-score.html#/simple-detail?id=${state.musicDetail.musicSheetId}&musicRenderType=${staffState.musicRenderType}&part-index=${staffState.partIndex}`;
         this.staffState.staffSrc = src
         window.addEventListener("message", event => {
            const { api, height } = event.data
            if (api === "api_musicPage") {
               this.staffState.isShow = true
               this.staffState.height = height + "px"
            }
         })
      },
      staffMoveInstance() {
         let isPause = true
         const requestAnimationFrameFun = () => {
            requestAnimationFrame(() => {
               this.$refs.staffDom?.contentWindow?.postMessage(
                  {
                     api: "api_playProgress",
                     content: {
                        currentTime: this.state._plrl.currentTime * this.staffState.speedRate
                     }
                  },
                  "*"
               )
               if (!isPause) {
                  requestAnimationFrameFun()
               }
            })
         }
         const playStaff = () => {
            // 没渲染不执行
            if (!this.staffState.isShow) return
            isPause = false
            this.$refs.staffDom?.contentWindow?.postMessage(
               {
                  api: "api_play"
               },
               "*"
            )
            requestAnimationFrameFun()
         }
         const pauseStaff = () => {
            // 没渲染不执行
            if (!this.staffState.isShow) return
            isPause = true
            this.$refs.staffDom?.contentWindow?.postMessage(
               {
                  api: "api_paused"
               },
               "*"
            )
         }
         const updateProgressStaff = currentTime => {
            // 没渲染不执行
            if (!this.staffState.isShow) return
            this.$refs.staffDom?.contentWindow?.postMessage(
               {
                  api: "api_updateProgress",
                  content: {
                     currentTime: currentTime * this.staffState.speedRate
                  }
               },
               "*"
            )
         }
         return {
            playStaff,
            pauseStaff,
            updateProgressStaff
         }
      },
      //点击改变播放状态
      handlerClickPlay(event) {
         // 原生 播放暂停按钮 点击的时候 不触发
         if (event?.target?.matches("button.plyr__control")) {
            return
         }
         if (this.state._plrl.playing) {
            this.state._plrl.pause()
         } else {
            this.state._plrl.play()
         }
      },
      handleScroll() {
         // 作品已删除不让滚动变色
         if (this.isEmpty) return
         const height = window.scrollY || document.documentElement.scrollTop
         // 防止多次调用
         if (height > 0 && this.isScreenScroll === false) {
            this.isScreenScroll = true
            this.setStatusBarTextColor(false)
         }
         if (height <= 0) {
            this.isScreenScroll = false
            this.setStatusBarTextColor(true)
         }
      },
      // 设置导航栏颜色
      setStatusBarTextColor(isWhite) {
         postMessage({
            api: "setStatusBarTextColor",
            content: { statusBarTextColor: isWhite }
         })
      },
      handleVisibilitychange() {
         if (document.hidden) {
            this.state._plrl?.pause()
         }
      },
      handlerBack(event) {
         event.stopPropagation()
         this.verticalScreen()
      },
      landscapeScreen() {
         postMessage({
            api: "setRequestedOrientation",
            content: {
               orientation: 0
            }
         })
         this.isLandscapeScreen = true
      },
      verticalScreen() {
         postMessage({
            api: "setRequestedOrientation",
            content: {
               orientation: 1
            }
         })
         this.isLandscapeScreen = false
      },
      handlerLandscapeScreen(event) {
         event.stopPropagation()
         const { isApp, weixin } = browser()
         if (isApp) {
            this.landscapeScreen()
            return
         }
         if (weixin) {
            this.wxStatus = true
         } else {
            const t = Date.now()
            const str = location.href
            this.shareCall(str)
            setTimeout(() => {
               if (Date.now() - t < 3500) {
                  window.location.replace(validStudentUrl() + "/#/studentDownLoad")
               }
            }, 3000)
         }
      },
      shareCall(str) {
         const iosStr = encodeURIComponent(str)
         const userAgent = navigator.userAgent || navigator.vendor
         if (/(iPhone|iPad|iPod|iOS)/i.test(userAgent)) {
            window.location.href = `StudentsDaya://linkUrl=${iosStr}`
         } else if (/(Android)/i.test(userAgent)) {
            window.location.href = `studentdaya://html:8888/SplashActivity?url=${iosStr}`
         } else {
            showToast("请用手机或移动设备打开")
         }
      },
      handlerDownLoad() {
         if (browser().weixin) {
            this.wxStatus = true
         } else {
            window.location.replace(validStudentUrl() + "/#/studentDownLoad")
         }
      },
      setFullHeight() {
         this.creationHeight = window.innerHeight
      }
   },
   mounted() {
      this.state.heightA = this.$refs.playBoxDom.offsetHeight
      document.addEventListener("scroll", this.handleScroll)
      document.addEventListener("visibilitychange", this.handleVisibilitychange)
      !browser().isApp && this.setFullHeight()
      window.addEventListener("resize", this.setFullHeight)
   },
   destroyed() {
      this.state._plrl?.destroy()
      document.removeEventListener("scroll", this.handleScroll)
      document.removeEventListener("visibilitychange", this.handleVisibilitychange)
      window.removeEventListener("resize", this.setFullHeight)
   },
   created() {
      this.setStatusBarTextColor(true)
      postMessage({ api: "setBarStatus", content: { status: 0, backButtonHidden: 1 } })
      postMessage({ api: "getNavHeight" }, res => {
         const { content } = res
         const dpi = content.dpi || 2
         if (content.navHeight) {
            const navHeight = content.navHeight / dpi
            this.navBarHeight = navHeight
         }
      })
      this.init()
   }
}
</script>

<style lang="less" scoped>
@import url("./index.less");
</style>
