<template>
  <div class="container">
    <div class="book-content-inner">
      <div
        id="content-tree"
        :class="[fullTree ? 'content-tree-full' : 'content-tree']"
      >
        <h2 class="catelog">目录</h2>
        <div style="padding-left: 8px">
          <TreeView
            ref="treeView"
            :book-id="bookId"
            :change-id="changeId"
            :changeTreeData="changeTreeData"
          />
        </div>
      </div>
      <div id="data-screen" class="inner">
        <!-- 显示答案按钮 -->
        <!-- <a v-if="chapterId" :class="['answerShow',isAnswerShow?'answerShowTrue':'']" @click="handleAnswerShow">显示答案</a> -->
        <!-- <a class="edit-btn" @click="handleEdit">编辑</a> -->
        <div v-if="chapterId" class="title-box">
          <img
            v-if="!treeFlag"
            src="../assets/common/icon-view-back.png"
            @click="treeShow"
          />
          <img
            v-if="!treeFlag"
            :src="
              fullTree
                ? require('../assets/common/icon-treelist-gray.png')
                : require('../assets/common/icon-treelist.png')
            "
            @click="chooseCourseware"
          />
          <h2 class="title">{{ chapterName }}</h2>
          <!-- <el-switch
            v-if="!treeFlag"
            v-model="switchvalue"
            active-color="#FF9900"
            active-text
            inactive-text="生词模式"
          /> -->
        </div>
        <template v-if="category == 'oc' || !category">
          <Preview
            v-if="chapterId && context"
            ref="previewAnswer"
            :context="context"
            :bookAnswerContent="bookAnswerContent"
            bookclientwidth="900"
            :TaskModel="TaskModel"
            @handleBookUserAnswer="handleBookUserAnswer"
          />
        </template>
        <template v-if="category == 'NPC'">
          <Booknpc
            v-if="chapterId && context"
            ref="previewAnswer"
            :context="context"
            :currentTreeID="chapterId"
            :FatherTreeData="FatherTreeData"
            :change-id="changeId"
          />
        </template>
      </div>
      <a
        v-if="chapterId && treeFlag"
        class="screen-full"
        @click="fullScreen()"
      />
    </div>
    <!-- <Preview :context="context" :queIndex="queIndex" /> -->
  </div>
</template>

<script>
import TreeView from "@/components/inputModules/common/TreeView";
import { getContent } from "@/api/ajax";
import Cookies from "js-cookie";
// import Preview from '@/componentsAnswer/PreviewAnswer.vue'
import Preview from "@/components/Preview";
export default {
  name: "CourseView",
  components: {
    TreeView,
    Preview,
  },
  props: ["bookId", "bookIsBuy"],
  data() {
    return {
      chapterId: "",
      chapterName: "",
      fullscreen: false, // 控制全屏
      context: null,
      question: null, // 选择的模板题型
      queIndex: "",
      treeFlag: true, // tree是否显示
      switchvalue: true, // 生词模式
      isAnswerShow: false, // 是否显示答案
      bookAnswerContent: "[]",
      TaskModel: "",
      fullTree: false, // 全屏模式下树是否显示
      category: "",
      FatherTreeData: null,
    };
  },
  mounted() {
    // const _this = this
    // _this.bookId = this.$route.query.bookId
  },
  methods: {
    changeTreeData(val) {
      this.FatherTreeData = JSON.parse(JSON.stringify(val));
    },
    changeId(id, name, free) {
      // if (
      //   this.bookIsBuy == "true" ||
      //   (this.bookIsBuy == "false" && free == "true")
      // ) {
      const _this = this;
      _this.chapterId = id;
      _this.chapterName = name;
      _this.isAnswerShow = false;
      _this.onGetData();
      if (!_this.treeFlag) {
        _this.fullTree = false;
        document.getElementById("content-tree").style.display = "none";
      }
      // } else {
      //   this.chapterId = "";
      //   this.chapterName = "";
      //   this.context = null;
      //   this.$message(
      //     {
      //       type: "warning",
      //       message: "您还没有购买此教材，请购买后查看!",
      //     },
      //     2000
      //   );
      // }
    },
    // 点击全屏展示 隐藏tree
    fullScreen() {
      this.treeFlag = false;
      document.getElementById("content-tree").style.display = "none";
      this.$emit("bookdetailShow", false);
    },
    treeShow() {
      this.treeFlag = true;
      this.fullTree = false;
      document.getElementById("content-tree").style.display = "block";
      this.$emit("bookdetailShow", true);
    },
    // 获取预览数据
    onGetData() {
      const _this = this;
      const MethodName = "book-courseware_manager-GetCoursewareContent_View";
      const data = {
        id: _this.chapterId,
      };
      getContent(MethodName, data).then((res) => {
        console.log(res);
        this.category = res.category;
        if (res.content) {
          const _this = this;
          if (!this.category || this.category == "oc") {
            _this.context = {
              id: _this.chapterId,
              ui_type: JSON.parse(res.content).question
                ? JSON.parse(res.content).question.ui_type
                : "",
              sort_number: 1,
              content: JSON.parse(res.content),
            };
          } else if (this.category == "NPC") {
            _this.context = JSON.parse(res.content);
          }
        } else {
          const _this = this;
          _this.context = null;
        }
      });
    },
    // 显示或隐藏答案
    handleAnswerShow() {
      this.isAnswerShow = !this.isAnswerShow;
      this.$refs.previewAnswer.bookAnswerShow(this.isAnswerShow);
    },
    // 得到用户答题答案
    handleBookUserAnswer(data) {
      console.log(data);
    },
    // 悬浮树隐藏显示
    chooseCourseware() {
      this.fullTree = !this.fullTree;
      if (this.fullTree) {
        document.getElementById("content-tree").style.display = "block";
      } else {
        document.getElementById("content-tree").style.display = "none";
      }
    },
  },
};
</script>
<style lang="scss" scoped>
.container {
  width: 100%;
  height: auto;

  .catelog {
    padding: 24px 40px 16px 40px;
    font-weight: 600;
    font-size: 24px;
    line-height: 150%;
    color: #000000;
    margin: 0;
  }
  .book-content-inner {
    background: #fff;
    width: 100%;
    height: 700px;
    overflow: auto;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    position: relative;
    &-tree {
      width: 340px;
      height: 100%;
      overflow: auto;
      padding: 20px 0px;
      border-right: 1px solid #d9d9d9;
    }
    .content-tree {
      width: 320px;
      border-right: 1px solid #d9d9d9;
      max-height: 700px;
      overflow: auto;
    }
    .content-tree-full {
      position: fixed;
      top: 100px;
      left: 152px;
      max-height: 588px;
      overflow: auto;
      z-index: 999;
      background: #fff;
      box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.25);
      border-radius: 4px;
    }
    .inner {
      width: 1000px;
      max-height: 700px;
      overflow: auto;
      flex: 1;
      margin: 0 auto;
      box-sizing: border-box;
      padding: 20px;
      position: relative;
      background: #fff;
      .title-box {
        display: flex;
        align-items: center;
        margin-bottom: 12px;
        padding-right: 160px;
        position: relative;
        > img {
          width: 40px;
          margin-right: 16px;
          cursor: pointer;
        }
      }
      .title {
        font-size: 24px;
        margin-bottom: 20px;
        line-height: 40px;
        margin: 0;
      }
      .has-module {
        display: flex;
        justify-content: flex-start;
        align-items: flex-start;
        &-tree {
          width: 340px;
          height: 100%;
          overflow: auto;
          padding: 20px 0px;
          border-right: 1px solid #d9d9d9;
        }
        .inner {
          // border-left: 1px solid #d9d9d9;
          width: 1000px;
          flex: 1;
          margin: 0 auto;
          box-sizing: border-box;
          padding: 20px;
          position: relative;
          background: #fff;
          .title-box {
            display: flex;
            align-items: center;
            margin-bottom: 12px;
            padding-right: 160px;
            position: relative;
            > img {
              width: 40px;
              margin-right: 16px;
              cursor: pointer;
            }
          }
          .title {
            font-size: 24px;
            margin-bottom: 20px;
            line-height: 40px;
            margin: 0;
          }
          .has-module {
            display: flex;
            justify-content: flex-start;
            align-items: flex-start;
          }
          .edit-btn {
            display: inline-block;
            font-size: 14px;
            background: #ff9900;
            float: right;
            line-height: 36px;
            color: #fff;
            width: 60px;
            text-align: center;
            border-radius: 4px;
          }
        }
      }
    }

    .nav-list {
      width: 200px;
      height: 40px;
      background: rgba(49, 212, 134, 0.2);
      border-radius: 240px;
      display: flex;
      justify-content: flex-start;
      align-items: center;
      padding: 0;
      margin: 0;
      margin-bottom: 10px;
      list-style: none;
      > li {
        height: 40px;
        width: 100px;
        text-align: center;
        font-style: normal;
        font-weight: bold;
        font-size: 14px;
        line-height: 40px;
        color: #19b068;
        cursor: pointer;
        &.active {
          background: #19b068;
          border-radius: 240px;
          color: #ffffff;
        }
      }
    }
  }
  .screen-full {
    position: absolute;
    right: 30px;
    bottom: 30px;
    width: 48px;
    height: 48px;
    background: rgba(0, 0, 0, 0.4) url("../assets/common/icon-screenFull.png")
      center no-repeat;
    background-size: 32px;
  }
  .answerShow {
    position: absolute;
    right: 20px;
    top: 20px;
    width: 112px;
    height: 40px;
    background: #ffffff url("../assets/common/icon-eye-close.png") 16px center
      no-repeat;
    background-size: 16px;
    border: 1px solid rgba(44, 44, 44, 0.15);
    box-sizing: border-box;
    border-radius: 4px;
    font-size: 14px;
    line-height: 150%;
    color: #000000;
    padding: 9px 16px 9px 36px;
    cursor: pointer;
    z-index: 2;
    &.answerShowTrue {
      background: #f5f5f5 url("../assets/common/icon-eye-open.png") 16px center
        no-repeat;
      background-size: 16px;
    }
  }
}
</style>
<style lang="scss">
.title-box {
  .el-switch {
    position: absolute;
    top: 0;
    right: 0px;
    border: 1px solid rgba(44, 44, 44, 0.15);
    border-radius: 40px;
    height: 40px;
    padding: 6px 6px 6px 16px;
  }
  .el-switch__label.is-active {
    color: #000000;
    font-size: 16px;
  }
}
</style>
