<template>
  <!-- 课程详情 -->
  <div>
    <div v-if="isData" v-loading="loading" class="CourseDetail">
      <div class="main">
        <div class="bookDetail">
          <div class="rightUp">
            <span>HOT</span>
          </div>
          <div class="text">
            <p class="p1 nowrap-ellipsis" :title="CourseData.name">{{ CourseData.name }}</p>
            <!-- 机构名称 -->
            <p>{{ CourseData.org_name }}</p>
            <p>
              <template v-if="CourseData.teacher_list.length > 0">
                <span v-for="item in CourseData.teacher_list" :key="item.teacher_id">
                  {{ item.teacher_name }}
                </span>
              </template>
            </p>
            <p class="intro">
              {{ CourseData.intro }}
            </p>
            <p>
              <span> {{ CourseData.begin_date }} </span>
              <span>-</span>
              <span> {{ CourseData.end_date }} </span>
            </p>

            <p v-if="backTime" class="tip">距离关闭购买渠道还有</p>
            <div class="operation">
              <div v-if="backTime" class="countdown">
                <div class="time">
                  <div>
                    <div class="time-num">{{ backTime.days }}</div>
                    <div class="time-name">天</div>
                  </div>
                  <div>
                    <div class="time-num">{{ backTime.hours }}</div>
                    <div class="time-name">小时</div>
                  </div>
                  <div>
                    <div class="time-num">{{ backTime.minutes }}</div>
                    <div class="time-name">分</div>
                  </div>
                  <div>
                    <div class="time-num">{{ backTime.seconds }}</div>
                    <div class="time-name">秒</div>
                  </div>
                </div>
              </div>
              <div v-else>购买渠道已关闭</div>

              <div v-if="!readonly">
                <span class="price">
                  ¥
                  <span class="price_1" v-text="changePrice('1', CourseData.price)" />
                  <span class="price_2" v-text="changePrice('2', CourseData.price)" />
                </span>
                <button class="get" @click="getPurchase">
                  {{ is_buy ? '去学习' : '获取课程' }}
                </button>
                <span class="collection" @click="addOrDeleteMyCollection">
                  <svg-icon :icon-class="collection ? 'collection-solid' : 'collection'" />
                </span>
              </div>
            </div>
          </div>
        </div>
        <div class="more">
          <div class="moreTitle">配套教材</div>
          <div class="moreList">
            <div v-for="(item, i) in CourseData.book_list" :key="i" class="moreOne">
              <div>
                <img :src="item.book_picture_url" alt="">
              </div>
              <div class="text">
                <p class="p1">{{ item.book_name }}</p>
                <p>{{ item.book_org_name }}</p>
                <p>{{ item.book_author }}</p>
                <div class="operation">
                  <span class="price">
                    ¥
                    <span class="price_1" v-text="changePrice('1', item.book_price)" />
                    <span class="price_2" v-text="changePrice('2', item.book_price)" />
                  </span>
                  <button v-if="!readonly" :class="['get', is_buy ? 'acquired' : '']" @click="goBook(item.book_id)">
                    {{ is_buy ? '已' : '' }}购买
                  </button>
                </div>
              </div>
            </div>
          </div>
        </div>
        <div class="more">
          <div class="moreTitle">授课教师</div>
          <div class="moreList teacherList">
            <div v-for="(item, i) in CourseData.teacher_list" :key="i" class="moreOne">
              <div>
                <img :src="item.teacher_image_url" alt="">
              </div>
              <div class="text">
                <p class="p1">{{ item.teacher_name }}</p>
                <p>{{ item.teacher_org_name }}</p>
                <p />
              </div>
            </div>
          </div>
        </div>
        <div class="course-arrangement">
          <div class="moreTitle">课程安排</div>
          <div v-for="(item, i) in CourseData.cs_item_list" :key="i" class="course-list">
            <div class="courseOne">
              <div class="title">
                <div>
                  <span>{{ i + 1 }}.</span>
                  <span>{{ item.name }}</span>
                </div>
                <div class="courseOne-time">{{ item.begin_time }} ~ {{ item.end_time }}</div>
              </div>
            </div>
            <div class="course-content">
              <el-collapse @change="handleChange(item.id)">
                <el-collapse-item :name="item.id">
                  <div slot="title" class="Coursetasks">
                    课程任务
                    <img
                      class="arrow"
                      :src="
                        openList.includes(item.id)
                          ? require('../../assets/course_details/open1.png')
                          : require('../../assets/course_details/open2.png')
                      "
                    >
                  </div>
                  <div class="courseContent">
                    <template v-for="li in courseContentList">
                      <div v-if="item[li.id].length > 0" :key="li.id" class="tasks">
                        <div class="title">
                          <span class="red-circle" /><span>{{ li.name }}任务</span>
                        </div>
                        <div class="content">
                          <el-collapse-item v-for="(it, it_i) in item[li.id]" :key="it_i" :name="it.id">
                            <div slot="title" :class="openList.includes(it.id) ? 'contenttitle2' : 'contenttitle'">
                              <span :title="it.name">{{ it.name }}</span>
                              <span>
                                <span class="gray">{{ it.begin_time }} ~ {{ it.end_time }}</span>
                                <span class="gray">···</span>
                              </span>
                            </div>
                            <div class="detail">
                              <div>
                                <span>说明</span>
                                <p>
                                  {{ it.content }}
                                </p>
                              </div>
                              <div v-if="it.courseware_list.length > 0">
                                <span>课件</span>
                                <div>
                                  <div
                                    v-for="(courseware, courseware_i) in it.courseware_list"
                                    :key="courseware_i"
                                    class="btn"
                                  >
                                    <img src="../../assets/course_details/file.png" alt="">
                                    <span> {{ courseware.courseware_name }} </span>
                                  </div>
                                </div>
                              </div>
                              <div v-if="it.accessory_list.length > 0">
                                <span>附件</span>
                                <div>
                                  <div
                                    v-for="(accessory, accessory_i) in it.accessory_list"
                                    :key="accessory_i"
                                    class="btn"
                                  >
                                    <img src="../../assets/course_details/fileType1.png" alt="">
                                    <span> {{ accessory.file_name }} </span>
                                  </div>
                                </div>
                              </div>
                            </div>
                          </el-collapse-item>
                        </div>
                      </div>
                    </template>
                  </div>
                </el-collapse-item>
              </el-collapse>
            </div>
          </div>
        </div>

        <el-dialog
          class="orderDialog"
          title="商品详情"
          :visible.sync="auditShow"
          width="720px"
          :before-close="closeaudit"
        >
          <audit :goods-id="goods_id" :data="CourseData" :goods-type="goods_type" />
        </el-dialog>
      </div>
    </div>

    <div v-else-if="!loading" class="non-existent">
      <h1>该课程已下架</h1>
    </div>
  </div>
</template>

<script>
import Audit from '@/components/payment/Audit';
import {
  GetCourseInfoBox,
  CheckMyGoodsBuyStatus,
  AddMyCollection,
  CancelMyGoodsCollection,
  CheckMyGoodsCollectionStatus
} from '@/api/course';

export default {
  components: {
    Audit
  },
  data() {
    let query = this.$route.query;

    return {
      goods_id: query.goods_id,
      goods_type: Number(query.goods_type),
      readonly: 'readonly' in query ? query.readonly : false,
      collection: false,
      openList: [],
      timer: null, // 获取倒计时
      backTime: 0,
      auditShow: false,
      loading: false,
      is_buy: false,
      CourseData: null,
      isData: false,
      courseContentList: [
        { id: 'pre_task_list', name: '课前' },
        { id: 'mid_task_list', name: '课中' },
        { id: 'after_task_list', name: '课后' }
      ]
    };
  },
  created() {
    // 获取课程详情
    this.loading = true;
    CheckMyGoodsBuyStatus({ goods_type: this.goods_type, goods_id: this.goods_id }).then(({ is_buy }) => {
      this.is_buy = is_buy === 'true';
    });
    GetCourseInfoBox({ id: this.goods_id })
      .then(res => {
        this.CourseData = res;
        this.isData = 'id' in res;
        this.getBackTime();
        this.checkMyGoodsCollectionStatus();
        this.loading = false;
      })
      .catch(() => {
        this.loading = false;
      });
  },
  beforeDestroy() {
    // 清空定时器
    clearInterval(this.timer);
  },
  // 方法集合
  methods: {
    // 课程任务的打开和关闭
    handleChange(val) {
      this.openList.includes(val) ? this.openList.splice(this.openList.indexOf(val), 1) : this.openList.push(val);
    },
    goBook(book_id) {
      if (!this.is_buy) {
        window.location.href = `/GCLS-Book/#/GoodsDetail?goods_id=${book_id}&goods_type=101`;
      }
    },

    checkMyGoodsCollectionStatus() {
      CheckMyGoodsCollectionStatus({ goods_type: this.goods_type, goods_id: this.CourseData.id }).then(
        ({ is_collection }) => {
          this.collection = is_collection === 'true';
        }
      );
    },

    // 处理价格
    changePrice(type, item) {
      if (!item) return;
      let str = String(item);
      if (str.includes('.')) {
        if (type === '1') {
          return str.split('.')[0];
        }
        return '.' + str.split('.')[1];
      } else if (type === '1') {
        return str;
      }
    },
    // 收藏
    addOrDeleteMyCollection() {
      if (!this.collection) {
        let goods_person_name_desc = '';
        this.CourseData.teacher_list.forEach(item => {
          goods_person_name_desc += item.teacher_name;
        });

        AddMyCollection({
          goods_id: this.goods_id,
          goods_type: this.goods_type,
          goods_name: this.CourseData.name,
          goods_person_name_desc,
          goods_picture_id: this.CourseData.picture_id,
          goods_price: this.CourseData.price
        }).then(() => {
          this.$message.success('收藏课程成功');
          this.collection = true;
        });
      } else {
        CancelMyGoodsCollection({ goods_type: this.goods_type, goods_id_list: [this.CourseData.id] }).then(() => {
          this.$message.success('取消收藏成功');
          this.collection = false;
        });
      }
    },
    // 购买   需要先加入课程 审核 审核通过之后才能购买课程
    getPurchase() {
      // 购买通道关闭
      if (this.is_buy) {
        return this.$router.push('/');
      }
      if (!this.backTime) {
        this.$message.warning('购买渠道已关闭');
        return;
      }
      this.auditShow = true;
    },
    closeaudit() {
      this.auditShow = false;
    },
    // 获取当前时间到指定时间的倒计时
    getBackTime() {
      let date = new Date(this.CourseData.end_date);
      let targetTime = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 23, 59, 59).getTime();
      console.log(new Date(date.getFullYear(), date.getMonth(), date.getDate(), 23, 59, 59).toString());
      // 目标时间戳 - 当前时间戳 = 倒计时
      this.timer = setInterval(() => {
        let backTime = targetTime - new Date().getTime();
        if (backTime > 0) {
          backTime = this.formatduring(backTime);
          this.backTime = backTime;
        } else {
          this.backTime = 0;
          clearInterval(this.timer);
        }
      }, 1000);
    },
    // 倒计时时间戳转换为 天 小时 分钟 秒
    formatduring(mss) {
      let days = parseInt(mss / (1000 * 60 * 60 * 24));
      let hours = parseInt((mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
      let minutes = parseInt((mss % (1000 * 60 * 60)) / (1000 * 60));
      let seconds = parseInt((mss % (1000 * 60)) / 1000);
      // 如果到时间了返回false  关闭购买通道  无法购买
      if (days <= 0 && hours <= 0 && minutes <= 0 && seconds <= 0) {
        return false;
      }
      return {
        days,
        hours,
        minutes,
        seconds
      };
    }
  }
};
</script>

<style lang="scss" scoped>
.CourseDetail {
  .main {
    min-height: 100%;
    padding: 52px 0 20px;
    background: #e5e5e5;

    .bookDetail {
      position: relative;
      display: flex;
      width: 1200px;
      height: 524px;
      padding: 64px;
      margin: 0 auto;
      overflow: hidden;
      background: url('../../assets/course_details/Rectangle113.png');
      border-radius: 8px;

      .rightUp {
        position: absolute;
        top: 0;
        right: 0;
        width: 72px;
        height: 72px;
        background: url('../../assets/course_details/Rectangle903.png');

        span {
          position: absolute;
          top: 10px;
          left: 30px;
          color: #fff;
          transform: translateX(4px) translateY(4px) rotateZ(45deg);
        }
      }

      .text {
        width: 1100px;
        color: #fff;

        .tip:not(.p1) {
          margin-top: 36px;
        }

        p {
          font-size: 16px;
        }

        .p1 {
          margin-top: 16px;
          font-size: 40px;
        }

        .intro {
          display: box;
          height: 36px;
          -webkit-box-orient: vertical;
          -webkit-line-clamp: 2;
          overflow: hidden;
          text-overflow: ellipsis;
        }

        > :not(.p1) {
          margin-top: 20px;
        }

        .price {
          font-size: 24px;

          .price_2 {
            font-size: 16px;
          }
        }

        .operation {
          display: flex;
          align-items: center;
          justify-content: space-between;

          .countdown {
            > p {
              color: rgba(255, 255, 255, 70%);
            }

            // 倒计时
            .time {
              display: flex;
              height: 75px;

              div {
                width: 48px;
                margin-right: 48px;
                text-align: center;
              }

              &-num {
                font-size: 30px;
              }

              &-name {
                margin-top: 12px;
                font-size: 24px;
              }
            }
          }
        }

        .get {
          width: 200px;
          height: 56px;
          margin-left: 30px;
          font-size: 20px;
          color: #fff;
          cursor: pointer;
          background: $basicColor;
          border-style: none;
          border-radius: 4px;
          outline: none;
        }

        .acquired {
          width: 120px;
          height: 40px;
          margin-left: 30px;
          font-size: 16px;
          color: #fff;
          cursor: pointer;
          background: #d5d5d5;
          border-style: none;
          border-radius: 4px;
          outline: none;
        }

        .collection {
          margin-left: 24px;
          font-size: 24px;
          vertical-align: middle;
          cursor: pointer;
        }
      }
    }

    .more {
      width: 1200px;
      margin: 0 auto;
      margin-top: 30px;

      .moreTitle {
        font-size: 20px;
        font-weight: 600;
        color: #000;
      }

      .moreTitle::before {
        margin-right: 16px;
        color: $basicColor;
        content: '|';
        background: $basicColor;
      }

      .moreList {
        display: flex;
        flex-wrap: wrap;
        width: 1300px;
        margin: 0 auto;

        .moreOne {
          display: flex;
          width: 598px;
          height: 236px;
          margin-top: 20px;
          margin-right: 20px;
          background: #fff;
          border-radius: 8px;

          > div {
            margin-top: 32px;
            margin-left: 32px;

            img {
              width: 120px;
              height: 160px;
            }
          }

          .text {
            width: 390px;
            margin-right: 23px;

            > p:not(.p1) {
              margin-top: 10px;
              font-size: 16px;
              color: #2c2c2c;
              opacity: 70%;
            }

            .p1 {
              font-size: 20px;
              font-weight: 600;
              color: #2c2c2c;
            }

            .operation {
              margin-top: 10px;
              text-align: right;
            }

            .get {
              width: 120px;
              height: 40px;
              margin-left: 30px;
              font-size: 20px;
              color: #fff;
              cursor: pointer;
              background: $basicColor;
              border-style: none;
              border-radius: 4px;
              outline: none;
            }

            .acquired {
              @extend .get;

              background: #d5d5d5;
            }

            .price {
              font-size: 24px;

              .price_2 {
                font-size: 16px;
              }
            }
          }
        }
      }

      .teacherList {
        .moreOne {
          > div {
            img {
              width: 120px;
              height: 120px;
              border-radius: 50%;
            }
          }
        }
      }
    }

    .course-arrangement {
      width: 1200px;
      margin: 0 auto;
      margin-top: 30px;

      .moreTitle {
        font-size: 20px;
        font-weight: 600;
        color: #000;
      }

      .moreTitle::before {
        margin-right: 16px;
        color: $basicColor;
        content: '|';
        background: $basicColor;
      }

      .course-list {
        width: 1200px;
        padding: 40px 68px 40px 40px;
        margin-top: 30px;
        font-size: 18px;
        background: #fff;

        > :not(.courseOne) {
          padding-left: 40px;
          margin-top: 16px;
        }

        .courseOne {
          .title {
            display: flex;
            justify-content: space-between;

            > div:nth-child(1) {
              font-size: 20px;
              font-weight: bold;

              span {
                margin-right: 24px;
              }
            }
          }

          &-time {
            color: #737373;
          }
        }

        .course-content {
          width: 670px;
        }

        .Coursetasks {
          display: flex;
          align-items: center;
          font-size: 16px;
          cursor: pointer;

          .arrow {
            width: 24px;
            margin-left: 8px;
          }
        }

        .courseContent {
          .tasks {
            padding-left: 10px;

            .title {
              font-size: 16px;
              color: #2c2c2c;

              .red-circle {
                position: relative;
                right: 3px;
                display: inline-block;
                width: 8px;
                height: 8px;
                margin-right: 16px;
                background: #fe6d68;
                border-radius: 50%;
              }
            }

            .content {
              padding-bottom: 10px;
              padding-left: 20px;
              margin-top: 16px;
              border-left: 1px solid #fe6d68;

              .contenttitle {
                display: flex;
                align-items: center;
                justify-content: space-between;
                width: 670px;
                padding: 0 10px;
                font-size: 16px;
                cursor: pointer;
                background: #fff;
                border: 1px solid #e6e6e6;
                border-radius: 8px;

                img {
                  width: 16px;
                  margin-left: 8px;
                }

                span {
                  margin-left: 16px;
                }

                > span:first-child {
                  width: 180px;
                  overflow: hidden;
                  text-overflow: ellipsis;
                  white-space: nowrap;
                }

                .gray {
                  opacity: 50%;
                }
              }

              .contenttitle2 {
                @extend .contenttitle;

                background: #f9f9f9;
                border-bottom-right-radius: 0;
                border-bottom-left-radius: 0;
              }

              .detail {
                width: 599px;
                padding-bottom: 24px;
                background: #fff;
                border: 1px solid #e7e7e7;
                border-bottom-right-radius: 8px;
                border-bottom-left-radius: 8px;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 10%);

                > div {
                  display: flex;
                  align-items: center;
                  margin-top: 24px;

                  > :nth-child(1) {
                    width: 78px;
                    min-width: 78px;
                    margin-left: 24px;
                    font-size: 16px;
                    color: #000;
                  }

                  > :nth-child(2) {
                    margin-left: 16px;

                    img {
                      width: 24px;
                    }

                    .btn {
                      display: flex;
                      align-items: center;
                      width: 270px;
                      height: 40px;
                      cursor: pointer;
                      background: #fff;
                      border: 1px solid #dbdbdb;
                      border-radius: 4px;

                      img {
                        margin-right: 8px;
                        margin-left: 16px;
                      }
                    }

                    .btn:not(:nth-child(1)) {
                      margin-top: 8px;
                    }
                  }
                }
              }
            }
          }
        }
      }
    }

    .cutDownOrimg {
      width: 1200px;
      margin: 0 auto;
      margin-top: 24px;

      .sele {
        display: flex;
        align-items: center;
        width: 318px;
        height: 48px;
        font-size: 20px;
        color: #9f9f9f;
        background: #ebebeb;
        border-radius: 30px;

        > div {
          width: 158px;
          height: 48px;
          line-height: 48px;
          text-align: center;
          cursor: pointer;
          border-radius: 30px;
        }

        .select {
          color: #fff;
          background: $basicColor;
          box-shadow: 0 2px 8px rgba(255, 153, 0, 15%);
        }
      }
    }

    .Catalogue {
      display: flex;
      width: 1200px;
      height: 710px;
      margin: 24px auto;
      background: #fff;

      .left {
        width: 340px;
        height: 710px;
        border-right: 1px solid #d9d9d9;

        .title {
          width: 80%;
          margin: 29px auto;
          font-size: 24px;
          font-weight: 600;
          color: #000;
        }
      }

      .right {
        width: 860px;
        height: 710px;
      }
    }

    .Resources {
      display: flex;
      width: 1200px;
      height: 710px;
      margin: 24px auto;
      background: #fff;

      div {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 40px;
        padding: 0 10px;
        margin: 10px;
        cursor: pointer;
        border: 1px solid rgba(44, 44, 44, 15%);
        border-radius: 4px;

        img {
          width: 24px;
          margin: 0 10px;
        }

        span {
          width: 182px;
          overflow: hidden;
          text-overflow: ellipsis;
          white-space: nowrap;
        }
      }
    }
  }
}

.non-existent {
  margin-top: 15vh;
  text-align: center;
}
</style>

<style lang="scss">
.el-collapse {
  border-style: none;

  &-item + &-item {
    margin-top: 12px;
  }

  .el-collapse-item__header {
    border-style: none;

    .l-collapse-item__arrow,
    .el-icon-arrow-right {
      display: none;
    }
  }

  .el-collapse-item__wrap {
    border-style: none;
  }

  .el-collapse-item__content {
    padding-bottom: 0;
  }
}

.orderDialog {
  .el-dialog__header {
    padding: 32px 20px 24px 32px;

    .el-dialog__title {
      font-size: 20px;
      line-height: 150%;
      color: #000;
    }
  }

  .el-dialog__body {
    padding: 0 32px 32px;
  }
}
</style>
