<template>
  <div class="app-container">
    <!--课程预览-->
    <div class="ccInfo">
      <img :src="coursePublish.cover" alt="课程封面">
      <div class="main">
        <h2>{{ coursePublish.title }}</h2>
        <p class="gray"><span>共 {{ coursePublish.lessonNum }} 课时</span></p>
        <p><span>所属分类：{{ coursePublish.parentSubjectName }} — {{ coursePublish.subjectName }}</span></p>
        <p>课程讲师：{{ coursePublish.teacherName }}</p>
        <h3 class="red">￥{{ coursePublish.price }}</h3>
      </div>
    </div>
    <div style="text-align:center">
      <el-button type="primary" @click="prev()">上一步</el-button>
      <el-button :disabled="publishBtnDisabled" type="primary" @click="publish()">发布课程</el-button>
    </div>
  </div>
</template>

<script>
import courseApi from '@/api/vod/course'

export default {
  data() {
    return {
      publishBtnDisabled: false,
      coursePublish: {}
    }
  },
  created() {
    if (this.$parent.courseId) {
      this.fetchCoursePublishById(this.$parent.courseId)
    }
  },
  methods: {
    // 获取课程发布信息
    fetchCoursePublishById(id) {
      courseApi.getCourseInfoById(id).then(response => {
        this.coursePublish = response.data
      })
    },
    // 上一步
    prev() {
      this.$parent.active = 1
    },
    // 下一步
    publish() {
      this.publishBtnDisabled = true
      courseApi.publishCourseById(this.$parent.courseId).then(response => {
        this.$parent.active = 3
        this.$message.success(response.message)
        this.$router.push({ path: '/course/list' })
      })
    }
  }
}
</script>
<style scoped>
.ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #DDD;
  margin-bottom: 40px;
  position: relative;
}

.ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
}

.ccInfo .main {
  margin-left: 520px;
}

.ccInfo .main h2 {
  font-size: 28px;
  margin-bottom: 30px;
  line-height: 1;
  font-weight: normal;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main h3 {
  left: 540px;
  bottom: 20px;
  line-height: 1;
  font-size: 28px;
  color: #d32f24;
  font-weight: normal;
  position: absolute;
}
</style>
