<template>
  <div class="pb_content" style="background: #e6eaf0; margin: 0">
    <div class="bread">
      <el-breadcrumb
        separator-class="el-icon-arrow-right"
        style="margin-top: 15px"
      >
        <el-breadcrumb-item
          :to="{ path: '/classRoom?userid=' + userid + '&oid=' + oid }"
          >课堂备课</el-breadcrumb-item
        >
        <el-breadcrumb-item>创建课堂</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="pb_content_body" style="height: 100%">
      <div class="pptBody">
        <div class="pptLeft">
          <div>课堂备课</div>
        </div>
        <div class="pptRight">
          <div v-if="steps == 0">
            <div style="background: #fff">
              <div class="pptName">课堂名称</div>
              <div class="pptInput">
                <span style="color: red; margin-right: 10px">*</span>
                <el-input
                  type="text"
                  placeholder="请输入名称"
                  v-model="upPPT[0].pName"
                  maxlength="50"
                  show-word-limit
                >
                </el-input>
              </div>
            </div>
            <div style="background: #fff; margin-top: 10px">
              <div class="pptName">上传课堂封面</div>
              <div class="pptInput" @click="addImg($event)">
                <span style="color: red; margin-right: 10px">*</span>
                <div class="uploadImg" v-if="upPPT[0].pImg.length == 0">
                  <div class="upImg">
                    <img src="../../assets/icon/upImg.png" alt="" />
                  </div>
                  <div style="color: #bfc3c7">支持jpg/png格式</div>
                  <input
                    type="file"
                    accept="image/png,image/jpg"
                    style="display: none"
                    @change="beforeUpload1($event, 1)"
                  />
                </div>
                <div v-else>
                  <div class="isUpImg">
                    <img :src="upPPT[0].pImg[0].url" alt="" />
                  </div>
                  <div
                    style="
                      width: 300px;
                      white-space: nowrap;
                      overflow: hidden;
                      text-overflow: ellipsis;
                      margin: 10px 0;
                      text-align: center;
                    "
                  >
                    {{ upPPT[0].pImg[0].name }}
                  </div>
                </div>
              </div>
            </div>
            <div style="background: #fff; margin-top: 10px">
              <div class="pptName">上传备课PPT</div>
              <div class="pptInput" @click="addImg($event)">
                <span style="color: red; margin-right: 10px">*</span>
                <div
                  class="uploadImg"
                  style="width: 320px; height: 200px"
                  v-if="upPPT[0].pPPt.length == 0"
                >
                  <div class="upImg">
                    <img src="../../assets/icon/upPpt.png" alt="" />
                  </div>
                  <div style="color: #bfc3c7">上传文件</div>
                  <input
                    type="file"
                    accept="application/.ppt, .pptx"
                    style="display: none"
                    @change="beforeUpload1($event, 2)"
                  />
                </div>
                <div v-else>
                  <div class="isUpImg"><img :src="mr" alt="" /></div>
                  <div
                    style="
                      width: 300px;
                      white-space: nowrap;
                      overflow: hidden;
                      text-overflow: ellipsis;
                      margin: 10px 0;
                      text-align: center;
                    "
                  >
                    {{ upPPT[0].pPPt[0].name }}
                  </div>
                </div>
              </div>
            </div>
            <div class="rightButton" @click="steps = 1">下一步</div>
          </div>
          <div v-if="steps == 1">
            <div style="background: #fff; margin-top: 10px">
              <div class="pptName">上传备课PPT</div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <div v-if="proVisible" class="mask">
      <div class="progressBox">
        <div class="lbox">
          <img src="../../assets/loading.gif" />上传中，请稍后
        </div>
        <el-progress
          :text-inside="true"
          :stroke-width="20"
          :percentage="progress"
          style="width: 80%"
        ></el-progress>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      dataVisible: false,
      isLoading: false,
      formLabelWidth: "100px",
      userid: this.$route.query.userid,
      oid: this.$route.query.oid,
      total: 0,
      tableData: [],
      upPPT: [
        {
          pName: "",
          pImg: [],
          pPPt: [],
        },
      ],
      now: "",
      mr: require("../../assets/icon/pptImg.png"),
      noneBtnImg: false,
      proVisible: false,
      progress: 0,
      steps: 0,
    };
  },
  methods: {
    change(val) {
      console.log(val);
    },
    goTo(path) {
      this.$router.push(path);
    },
    tableRowClassName({ row, rowIndex }) {
      if ((rowIndex + 1) % 2 === 0) {
        return "even_row";
      } else {
        return "";
      }
    },
    jump(cid) {
      window.parent.postMessage({ cid: cid, type: "1" }, "*");
    },
    init() {},
    handleClose(done) {
      done();
    },
    handleRemove(file, fileList) {
      console.log(file, fileList);
    },
    onExceed() {
      this.$message.error("课程海报仅支持上传一张，请删除后再进行上传");
    },
    //uuid生成
    guid() {
      return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(
        /[xy]/g,
        function (c) {
          var r = (Math.random() * 16) | 0,
            v = c == "x" ? r : (r & 0x3) | 0x8;
          return v.toString(16);
        }
      );
    },
    time() {
      if (!this.now) {
        this.now = new Date().getTime();
        return true;
      } else {
        let time = new Date().getTime();
        if (time - this.now > 3000) {
          this.now = time;
          return true;
        } else {
          return false;
        }
      }
    },
    addImg(e) {
      var el = e.currentTarget;
      el.getElementsByTagName("input")[0].click();
    },
    imgChange(file, fileList, type) {
      if (type == 1) {
        var _tmp = this.upPPT[0].pImg;
      } else if (type == 2) {
        var _tmp = this.upPPT[0].pPPt;
      }
      this.noneBtnImg = _tmp.length >= 1;
    },
    beforeUpload1(event, type) {
      var file = event.target.files[0];
      var credentials = {
        accessKeyId: "AKIATLPEDU37QV5CHLMH",
        secretAccessKey: "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",
      }; //秘钥形式的登录上传
      window.AWS.config.update(credentials);
      window.AWS.config.region = "cn-northwest-1"; //设置区域

      var bucket = new window.AWS.S3({ params: { Bucket: "ccrb" } }); //选择桶
      var _this = this;
      _this.progress = 0;
      _this.proVisible = true;

      if (file) {
        var params = {
          Key:
            file.name.split(".")[0] +
            new Date().getTime() +
            "." +
            file.name.split(".")[1],
          ContentType: file.type,
          Body: file,
          "Access-Control-Allow-Credentials": "*",
          ACL: "public-read",
        }; //key可以设置为桶的相抵路径，Body为文件， ACL最好要设置
        var options = {
          partSize: 2048 * 1024 * 1024,
          queueSize: 2,
          leavePartsOnError: true,
        };
        bucket
          .upload(params, options)
          .on("httpUploadProgress", function (evt) {
            //这里可以写进度条
            // console.log("Uploaded : " + parseInt((evt.loaded * 80) / evt.total) + '%');
            _this.progress = parseInt((evt.loaded * 80) / evt.total);
          })
          .send(function (err, data) {
            _this.progress = 100;
            setTimeout(() => {
              _this.proVisible = false;
            }, 1000);
            if (err) {
              var a = _this.$refs.upload1.uploadFiles;
              a.splice(a.length - 1, a.length);
              _this.$message.error("上传失败");
            } else {
              if (type == 1) {
                _this.upPPT[0].pImg.push({
                  name: file.name,
                  url: data.Location,
                  uid: file.uid,
                });
                _this.imgChange(null, null, type);
              } else {
                _this.upPPT[0].pPPt.push({
                  name: file.name,
                  url: data.Location,
                  uid: file.uid,
                });
                _this.imgChange(null, null, type);
              }

              console.log(data.Location);
            }
          });
      }
    },
    checkData() {
      this.dataVisible = true;
    },
  },
  created() {},
};
</script>

<style scoped>
.upImg > img,
.isUpImg > img {
  width: 100%;
  height: 100%;
}
.xls_button {
  font-size: 14px;
  cursor: pointer;
  text-decoration: underline;
  color: rgb(34, 104, 188);
}
.student_search {
  display: flex;
  align-items: center;
  width: calc(100% / 3);
}
.student_search span {
  margin: 0 10px 0 0;
  width: 65px;
}
.el_cards >>> .el-card__body {
  height: 100%;
}
.student_input >>> .el-input__inner {
  height: 40px;
  width: 190px;
  font-size: 13px;
  padding: 0 10px;
}
.dialog_diy >>> .el-dialog__header {
  padding: 9px 20px 10px;
  background: #32455b !important;
}
.dialog_diy >>> .el-dialog__title {
  color: #fff;
  font-size: 15px;
}
.dialog_diy >>> .el-dialog__headerbtn {
  top: 14px;
}
.dialog_diy >>> .el-dialog__headerbtn .el-dialog__close {
  color: #fff;
}
.dialog_diy >>> .el-dialog__headerbtn .el-dialog__close:hover {
  color: #fff;
}
.dialog_diy >>> .el-dialog__body,
.dialog_diy >>> .el-dialog__footer {
  background: #f3f3f3;
}
.bread {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: flex-end;
  align-items: center;
}
.pptBody {
  display: flex;
  width: 100%;
  height: 100%;
  flex-direction: row;
  align-items: flex-start;
  flex-wrap: nowrap;
  align-content: flex-start;
}
.pptLeft {
  background: #fff;
  width: 20%;
  height: 55px;
  border-radius: 5px;
  line-height: 55px;
  display: flex;
  align-items: center;
}
.pptLeft > div {
  border-left: 5px solid #418ae4;
  height: 35px;
  line-height: 35px;
  padding-left: 20px;
}
.pptRight {
  width: 80%;
  margin-left: 25px;
  background: #e6e9f0;
  position: relative;
  min-height: 100%;
}
.pptName {
  height: 40px;
  padding: 15px 0 0 20px;
  border-bottom: 1px solid #f9f9f9;
}
.pptInput {
  display: flex;
  margin-top: 15px;
  padding: 10px 0 20px 25px;
  flex-direction: row;
  align-items: center;
}
.pptInput >>> .el-input {
  width: 80%;
}

.pptInput >>> .el-input__inner,
.pptInput >>> .el-input__count-inner {
  background: #f4f4f4 !important;
}
.uploadImg {
  background: #f2f2f2;
  width: 300px;
  height: 150px;
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.upImg {
  width: 60px;
}
.mask {
  background-color: rgba(0, 0, 0, 0);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 20000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.progressBox {
  width: 500px;
  height: 180px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 0 6px 1px #bfbfbf;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.progressBox .lbox {
  height: 100px;
  font-size: 19px;
  display: flex;
  align-items: center;
}

.progressBox .lbox img {
  width: 40px;
  margin-right: 20px;
}

.progressBox >>> .el-progress-bar__outer {
  background-color: #d1dfff !important;
}
.progressBox .lbox {
  height: 100px;
  font-size: 19px;
  display: flex;
  align-items: center;
}

.progressBox .lbox img {
  width: 40px;
  margin-right: 20px;
}
.isUpImg {
  width: 300px;
  height: 150px;
}
.rightButton {
  background: #30adff;
  width: 160px;
  height: 40px;
  text-align: center;
  line-height: 40px;
  color: #fff;
  border-radius: 5px;
  font-size: 12px;
  position: absolute;
  right: 0;
  bottom: 17%;
  cursor: pointer;
}
</style>
