<!--pages/chapters/chapters.wxml-->
<!--Soul创业实验 - 目录页 1:1还原Web版本-->
<view class="page page-transition">
  <!-- 自定义导航栏 -->
  <view class="nav-bar" style="padding-top: {{statusBarHeight}}px;">
    <view class="nav-content">
      <view class="nav-title brand-color">目录</view>
    </view>
  </view>
  
  <!-- 导航栏占位 -->
  <view class="nav-placeholder" style="height: {{statusBarHeight + 44}}px;"></view>

  <!-- 书籍信息卡 -->
  <view class="book-info-card card-gradient">
    <view class="book-icon">
      <view class="book-icon-inner">📚</view>
    </view>
    <view class="book-info">
      <text class="book-title">一场SOUL的创业实验场</text>
      <text class="book-subtitle">来自Soul派对房的真实商业故事</text>
    </view>
    <view class="book-count">
      <text class="count-value brand-color">{{totalSections}}</text>
      <text class="count-label">章节</text>
    </view>
  </view>

  <!-- 目录内容 -->
  <view class="chapters-content">
    <!-- 序言 -->
    <view class="chapter-item" bindtap="goToRead" data-id="preface">
      <view class="item-left">
        <view class="item-icon icon-brand">📖</view>
        <text class="item-title">序言｜为什么我每天早上6点在Soul开播?</text>
      </view>
      <view class="item-right">
        <text class="tag tag-free">免费</text>
        <text class="item-arrow">→</text>
      </view>
    </view>

    <!-- 篇章列表 -->
    <view class="part-list">
      <view class="part-item" wx:for="{{bookData}}" wx:key="id">
        <!-- 篇章标题 -->
        <view class="part-header" bindtap="togglePart" data-id="{{item.id}}">
          <view class="part-left">
            <view class="part-icon">{{item.number}}</view>
            <view class="part-info">
              <text class="part-title">{{item.title}}</text>
              <text class="part-subtitle">{{item.subtitle}}</text>
            </view>
          </view>
          <view class="part-right">
            <text class="part-count">{{item.chapters.length}}章</text>
            <text class="part-arrow {{expandedPart === item.id ? 'arrow-down' : ''}}">→</text>
          </view>
        </view>

        <!-- 章节列表 - 展开时显示 -->
        <block wx:if="{{expandedPart === item.id}}">
          <view class="chapters-list">
            <block wx:for="{{item.chapters}}" wx:key="id" wx:for-item="chapter">
              <view class="chapter-header">{{chapter.title}}</view>
              <view class="section-list">
                <block wx:for="{{chapter.sections}}" wx:key="id" wx:for-item="section">
                  <view class="section-item" bindtap="goToRead" data-id="{{section.id}}">
                    <view class="section-left">
                      <text class="section-lock {{section.isFree || hasFullBook || purchasedSections.indexOf(section.id) > -1 ? 'lock-open' : 'lock-closed'}}">{{section.isFree || hasFullBook || purchasedSections.indexOf(section.id) > -1 ? '○' : '●'}}</text>
                      <text class="section-title {{section.isFree || hasFullBook || purchasedSections.indexOf(section.id) > -1 ? '' : 'text-muted'}}">{{section.id}} {{section.title}}</text>
                    </view>
                    <view class="section-right">
                      <text wx:if="{{section.isFree}}" class="tag tag-free">免费</text>
                      <text wx:elif="{{hasFullBook || purchasedSections.indexOf(section.id) > -1}}" class="tag tag-purchased">已购</text>
                      <text wx:else class="section-price">¥{{section.price}}</text>
                      <text class="section-arrow">›</text>
                    </view>
                  </view>
                </block>
              </view>
            </block>
          </view>
        </block>
      </view>
    </view>

    <!-- 尾声 -->
    <view class="chapter-item" bindtap="goToRead" data-id="epilogue">
      <view class="item-left">
        <view class="item-icon icon-brand">📖</view>
        <text class="item-title">尾声｜这本书的真实目的</text>
      </view>
      <view class="item-right">
        <text class="tag tag-free">免费</text>
        <text class="item-arrow">→</text>
      </view>
    </view>

    <!-- 附录 -->
    <view class="appendix-card card">
      <text class="appendix-title">附录</text>
      <view class="appendix-list">
        <view 
          class="appendix-item" 
          wx:for="{{appendixList}}" 
          wx:key="id"
          bindtap="goToRead"
          data-id="{{item.id}}"
        >
          <text class="appendix-text">{{item.title}}</text>
          <text class="appendix-arrow">→</text>
        </view>
      </view>
    </view>
  </view>

  <!-- 底部留白 -->
  <view class="bottom-space"></view>
</view>
