<template>
  <div id="devicePosition" style="height: 100%">
    <el-container style="height: 100%">
      <el-header>
        <uiHeader></uiHeader>
      </el-header>
      <el-container v-loading="loading" element-loading-text="拼命加载中">
        <el-aside width="300px" style="background-color: #ffffff">
          <div style="text-align: center;padding-top: 20px;">设备列表</div>
          <el-menu v-loading="loading">
            <el-submenu
              v-for="device in deviceList"
              :key="device.deviceId"
              :index="device.deviceId"
              @click="sendDevicePush(item)"
            >
              <template slot="title">
                <i class="el-icon-location-outline"></i>
                {{ device.name }}
              </template>
              <ChannelTree
                :device="device"
                @sendDevicePush="sendDevicePush"
              ></ChannelTree>
            </el-submenu>
          </el-menu>
        </el-aside>
        <el-container>
          <!-- <LivePlay></LivePlay> -->
          <el-header
            height="40px"
            style="text-align: left;font-size: 17px;line-height: 40px;"
          >
            分屏:
            <i
              class="el-icon-full-screen btn"
              :class="{ active: spilt == 1 }"
              @click="spilt = 1"
            />
            <i
              class="el-icon-menu btn"
              :class="{ active: spilt == 4 }"
              @click="spilt = 4"
            />
            <i
              class="el-icon-s-grid btn"
              :class="{ active: spilt == 9 }"
              @click="spilt = 9"
            />
          </el-header>
          <el-main>
            <div
              style="width: 100%;height: calc( 100vh - 110px );display: flex;flex-wrap: wrap;background-color: #000;"
            >
              <div
                v-for="i in spilt"
                :key="i"
                class="play-box"
                :style="liveStyle"
                :class="{ redborder: playerIdx == i - 1 }"
                @click="playerIdx = i - 1"
              >
                <div
                  v-if="!videoUrl[i - 1]"
                  style="color: #ffffff;font-size: 30px;font-weight: bold;"
                >
                  {{ i }}
                </div>
                <player
                  v-else
                  :ref="'player' + i"
                  :videoUrl="videoUrl[i - 1]"
                  fluent
                  autoplay
                  :height="true"
                  :idx="'player' + i"
                  @screenshot="shot"
                  @destroy="destroy"
                ></player>
                <!-- <player v-else ref="'player'+i" :idx="'player'+i" :visible.sync="showVideoDialog" :videoUrl="videoUrl[i-1]"  :height="true" :hasAudio="hasAudio" fluent autoplay live ></player> -->
              </div>
            </div>
          </el-main>
        </el-container>
      </el-container>
    </el-container>
  </div>
</template>

<script>
import uiHeader from "./UiHeader.vue";
import player from "./jessibuca.vue";
import ChannelTree from "./channelTree.vue";

export default {
  name: "live",
  components: {
    uiHeader,
    player,
    ChannelTree
  },
  data() {
    return {
      showVideoDialog: true,
      hasAudio: false,
      videoUrl: [""],
      spilt: 1, //分屏
      playerIdx: 0, //激活播放器

      deviceList: [], //设备列表
      currentDevice: {}, //当前操作设备对象

      videoComponentList: [],
      updateLooper: 0, //数据刷新轮训标志
      currentDeviceChannelsLenth: 0,
      winHeight: window.innerHeight - 200,
      currentPage: 1,
      count: 15,
      total: 0,
      getDeviceListLoading: false,

      //channel
      searchSrt: "",
      channelType: "",
      online: "",
      channelTotal: 0,
      deviceChannelList: [],
      loading: false
    };
  },
  mounted() {
    this.initData();
  },
  created() {
    this.checkPlayByParam();
  },

  computed: {
    liveStyle() {
      if (this.spilt == 1) {
        return { width: "100%", height: "100%" };
      } else if (this.spilt == 4) {
        return { width: "49%", height: "49%" };
      } else if (this.spilt == 9) {
        return { width: "32%", height: "32%" };
      }
    }
  },
  watch: {
    spilt(newValue) {
      console.log("切换画幅;" + newValue);
      let that = this;
      for (let i = 1; i <= newValue; i++) {
        if (!that.$refs["player" + i]) {
          continue;
        }
        this.$nextTick(() => {
          if (that.$refs["player" + i] instanceof Array) {
            that.$refs["player" + i][0].resize();
          } else {
            that.$refs["player" + i].resize();
          }
        });
      }
      window.localStorage.setItem("split", newValue);
    },
    "$route.fullPath": "checkPlayByParam"
  },
  destroyed() {
    clearTimeout(this.updateLooper);
  },
  methods: {
    initData: function() {
      this.getDeviceList();
    },
    destroy(idx) {
      console.log(idx);
      this.clear(idx.substring(idx.length - 1));
    },
    getDeviceList: function() {
      let that = this;
      this.$axios({
        method: "get",
        url: `/api/device/query/devices`,
        params: {
          page: that.currentPage,
          count: that.count
        }
      })
        .then(function(res) {
          console.log(res.data.list);
          that.total = res.data.total;

          that.deviceList = res.data.list.map(item => {
            return { deviceChannelList: [], ...item };
          });
          that.getDeviceListLoading = false;
        })
        .catch(function(error) {
          console.log(error);
          that.getDeviceListLoading = false;
        });
    },
    //通知设备上传媒体流
    sendDevicePush: function(itemData) {
      if (itemData.status === 0) {
        this.$message.error("设备离线!");
        return;
      }
      this.save(itemData);
      let deviceId = itemData.deviceId;
      // this.isLoging = true;
      let channelId = itemData.channelId;
      console.log("通知设备推流1：" + deviceId + " : " + channelId);
      let idxTmp = this.playerIdx;
      let that = this;
      this.loading = true;
      this.$axios({
        method: "get",
        url: "/api/play/start/" + deviceId + "/" + channelId
      })
        .then(function(res) {
          console.log(res, "res");
          if (res.data.code == 0 && res.data.data) {
            itemData.playUrl = res.data.data.httpsFlv;
            if (location.protocol === "https:") {
              that.setPlayUrl(res.data.data.wss_flv, idxTmp);
            } else {
              that.setPlayUrl(res.data.data.ws_flv, idxTmp);
            }
          } else {
            that.$message.error(res.data.msg);
          }
        })
        .catch(function(e) {})
        .finally(() => {
          that.loading = false;
        });
    },
    setPlayUrl(url, idx) {
      this.$set(this.videoUrl, idx, url);
      let _this = this;
      setTimeout(() => {
        window.localStorage.setItem("videoUrl", JSON.stringify(_this.videoUrl));
      }, 100);
    },
    checkPlayByParam() {
      let { deviceId, channelId } = this.$route.query;
      if (deviceId && channelId) {
        this.sendDevicePush({ deviceId, channelId });
      }
    },
    convertImageToCanvas(image) {
      var canvas = document.createElement("canvas");
      canvas.width = image.width;
      canvas.height = image.height;
      canvas.getContext("2d").drawImage(image, 0, 0);
      return canvas;
    },
    shot(e) {
      // console.log(e)
      // send({code:'image',data:e})
      var base64ToBlob = function(code) {
        let parts = code.split(";base64,");
        let contentType = parts[0].split(":")[1];
        let raw = window.atob(parts[1]);
        let rawLength = raw.length;
        let uInt8Array = new Uint8Array(rawLength);
        for (let i = 0; i < rawLength; ++i) {
          uInt8Array[i] = raw.charCodeAt(i);
        }
        return new Blob([uInt8Array], {
          type: contentType
        });
      };
      let aLink = document.createElement("a");
      let blob = base64ToBlob(e); //new Blob([content]);
      let evt = document.createEvent("HTMLEvents");
      evt.initEvent("click", true, true); //initEvent 不加后两个参数在FF下会报错  事件类型，是否冒泡，是否阻止浏览器的默认行为
      aLink.download = "截图";
      aLink.href = URL.createObjectURL(blob);
      aLink.click();
    },
    save(item) {
      let dataStr = window.localStorage.getItem("playData") || "[]";
      let data = JSON.parse(dataStr);
      data[this.playerIdx] = item;
      window.localStorage.setItem("playData", JSON.stringify(data));
    },
    clear(idx) {
      let dataStr = window.localStorage.getItem("playData") || "[]";
      let data = JSON.parse(dataStr);
      data[idx - 1] = null;
      console.log(data);
      window.localStorage.setItem("playData", JSON.stringify(data));
    },
    loadAndPlay() {
      let dataStr = window.localStorage.getItem("playData") || "[]";
      let data = JSON.parse(dataStr);

      data.forEach((item, i) => {
        if (item) {
          this.playerIdx = i;
          this.sendDevicePush(item);
        }
      });
    }
  }
};
</script>
<style>
.btn {
  margin: 0 10px;
}
.btn:hover {
  color: #409eff;
}
.btn.active {
  color: #409eff;
}
.redborder {
  border: 2px solid red !important;
}
.play-box {
  background-color: #000000;
  border: 2px solid #505050;
  display: flex;
  align-items: center;
  justify-content: center;
}
</style>
<style>
.videoList {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
}

.video-item {
  position: relative;
  width: 15rem;
  height: 10rem;
  margin-right: 1rem;
  background-color: #000000;
}

.video-item-img {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  width: 100%;
  height: 100%;
}

.video-item-img:after {
  content: "";
  display: inline-block;
  position: absolute;
  z-index: 2;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  width: 3rem;
  height: 3rem;
  background-image: url("../assets/loading.png");
  background-size: cover;
  background-color: #000000;
}

.video-item-title {
  position: absolute;
  bottom: 0;
  color: #000000;
  background-color: #ffffff;
  line-height: 1.5rem;
  padding: 0.3rem;
  width: 14.4rem;
}

.baidumap {
  width: 100%;
  height: 100%;
  border: none;
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  margin: auto;
}

/* 去除百度地图版权那行字 和 百度logo */
.baidumap > .BMap_cpyCtrl {
  display: none !important;
}
.baidumap > .anchorBL {
  display: none !important;
}
</style>
