{% extends "./layout.html" %}

{% block title %}内容管理{% endblock %}

{% block css %}
<link rel="stylesheet" href="/static/lib/wangeditor/css/style.css">
<style>
  .editor-toolbar { border: 1px solid #dcdfe6; border-bottom: none; border-radius: 4px 4px 0 0; }
  .editor-container { border: 1px solid #dcdfe6; border-radius: 0 0 4px 4px; min-height: 300px; }
  /* 手机模拟框 */
  .phone-frame {
    width: 375px; height: 720px; margin: 0 auto;
    border: 8px solid #1a1a1a; border-radius: 40px;
    background: #f5f5f5; position: relative; overflow: hidden;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  }
  .phone-notch {
    width: 120px; height: 24px; background: #1a1a1a;
    border-radius: 0 0 16px 16px; margin: 0 auto;
    position: relative; z-index: 2;
  }
  .phone-screen {
    height: calc(100% - 24px); overflow-y: auto; background: #fff;
  }
  .phone-screen::-webkit-scrollbar { width: 0; }
  /* 预览内容样式 */
  .preview-header {
    padding: 16px 16px 12px; border-bottom: 1px solid #f0f0f0;
  }
  .preview-title { font-size: 18px; font-weight: 600; color: #303133; line-height: 1.5; }
  .preview-body { padding: 16px; font-size: 14px; color: #606266; line-height: 1.8; }
  .preview-body img { max-width: 100% !important; height: auto !important; }
  .preview-body p { margin-bottom: 12px; }
  .preview-body p:last-child { margin-bottom: 0; }
</style>
{% endblock %}

{% block content %}
<div id="contentApp" v-cloak>
  <!-- 搜索栏 -->
  <el-card shadow="never" class="mb-4">
    <el-form :inline="true" @submit.prevent="loadList()" class="flex items-center flex-wrap gap-2">
      <el-form-item label="关键字" class="!mb-0">
        <el-input v-model="keyword" placeholder="标题/标识" clearable style="width:180px;" />
      </el-form-item>
      <el-form-item label="状态" class="!mb-0">
        <el-select v-model="statusFilter" placeholder="全部" clearable style="width:120px;">
          <el-option label="启用" :value="1"></el-option>
          <el-option label="禁用" :value="0"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item class="!mb-0">
        <el-button type="primary" @click="loadList()">搜索</el-button>
        <el-button @click="resetFilter">重置</el-button>
      </el-form-item>
    </el-form>
  </el-card>

  <!-- 列表 -->
  <el-card shadow="never">
    <template #header>
      <el-button v-if="canAdd" type="primary" @click="showAdd">+ 新增</el-button>
    </template>

    <el-table :data="tableData" v-loading="loading" stripe border>
      <el-table-column prop="content_key" label="内容标识" width="180"></el-table-column>
      <el-table-column prop="title" label="标题" min-width="200"></el-table-column>
      <el-table-column prop="remark" label="备注" min-width="160">
        <template #default="{ row }">${ row.remark || '-' }</template>
      </el-table-column>
      <el-table-column label="状态" width="80" align="center">
        <template #default="{ row }">
          <el-tag :type="row.status === 1 ? 'success' : 'info'" size="small">${ row.status === 1 ? '启用' : '禁用' }</el-tag>
        </template>
      </el-table-column>
      <el-table-column prop="sort" label="排序" width="80" align="center"></el-table-column>
      <el-table-column prop="update_time" label="更新时间" width="170">
        <template #default="{ row }">${ row.update_time || row.create_time || '-' }</template>
      </el-table-column>
      <el-table-column label="操作" width="200" align="center">
        <template #default="{ row }">
          <el-button type="primary" link @click="showPreview(row)">预览</el-button>
          <el-button v-if="canEdit" type="primary" link @click="showEdit(row)">编辑</el-button>
          <el-button v-if="canDelete" type="danger" link @click="handleDelete(row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <div class="flex justify-end mt-4">
      <el-pagination
        v-model:current-page="pagination.page"
        :page-size="pagination.pageSize"
        :total="pagination.total"
        layout="total, prev, pager, next"
        @current-change="loadList"
      />
    </div>
  </el-card>

  <!-- 新增/编辑弹窗 -->
  <el-dialog v-model="dialogVisible" :title="dialogTitle" width="1000px" top="5vh" destroy-on-close draggable :close-on-click-modal="false" @closed="onDialogClosed">
    <div style="max-height: calc(90vh - 160px); overflow-y: auto; padding-right: 24px;">
      <el-form :model="form" label-width="90px">
        <el-form-item label="内容标识" required>
          <el-input v-model="form.content_key" placeholder="如 index_content" :disabled="!!form.id" />
          <div v-if="!form.id" class="text-xs text-gray-400 mt-1">创建后不可修改</div>
        </el-form-item>
        <el-form-item label="标题" required>
          <el-input v-model="form.title" placeholder="请输入标题" />
        </el-form-item>
        <el-form-item label="备注">
          <el-input v-model="form.remark" placeholder="请输入备注" />
        </el-form-item>
        <el-form-item label="富文本内容">
          <div style="width:780px; max-width:100%;">
            <div id="toolbar-container" class="editor-toolbar"></div>
            <div id="editor-container" class="editor-container"></div>
          </div>
        </el-form-item>
        <el-form-item label="排序">
          <el-input-number v-model="form.sort" :min="0" :precision="0" :step="1" />
        </el-form-item>
        <el-form-item label="状态">
          <el-switch v-model="form.status" :active-value="1" :inactive-value="0" />
        </el-form-item>
      </el-form>
    </div>
    <template #footer>
      <el-button @click="dialogVisible = false">取消</el-button>
      <el-button type="primary" @click="handleSave" :loading="saving">确定</el-button>
    </template>
  </el-dialog>

  <!-- 预览抽屉 -->
  <el-drawer v-model="previewVisible" title="内容预览" size="480px" destroy-on-close>
    <div class="phone-frame">
      <div class="phone-notch"></div>
      <div class="phone-screen">
        <div class="preview-header">
          <div class="preview-title">${ previewData.title }</div>
        </div>
        <div class="preview-body" v-html="previewData.content"></div>
      </div>
    </div>
  </el-drawer>
</div>
{% endblock %}

{% block js %}
<script src="/static/lib/wangeditor/index.js"></script>
<script>
const canAdd = {{ canAdd | dump | safe }};
const canEdit = {{ canEdit | dump | safe }};
const canDelete = {{ canDelete | dump | safe }};

const { createApp, ref, reactive, onMounted, nextTick } = Vue;

const app = createApp({
  delimiters: ['${', '}'],
  setup() {
    const keyword = ref('');
    const statusFilter = ref('');
    const loading = ref(false);
    const tableData = ref([]);
    const pagination = reactive({ page: 1, pageSize: 10, total: 0 });

    const dialogVisible = ref(false);
    const dialogTitle = ref('新增内容');
    const saving = ref(false);
    const form = reactive({ id: null, content_key: '', title: '', remark: '', content: '', sort: 0, status: 1 });

    // 预览
    const previewVisible = ref(false);
    const previewData = reactive({ title: '', content: '' });

    let editorInstance = null;

    async function loadList(page) {
      if (typeof page === 'number') pagination.page = page;
      loading.value = true;
      try {
        const params = new URLSearchParams({
          page: pagination.page, pageSize: pagination.pageSize,
          keyword: keyword.value,
          status: statusFilter.value !== '' ? statusFilter.value : ''
        });
        const res = await fetch('/admin/content/list?' + params).then(r => r.json());
        if (res.code === 0) {
          tableData.value = res.data.data || [];
          pagination.total = res.data.count || 0;
        } else {
          ElementPlus.ElMessage.error(res.msg || '加载失败');
        }
      } finally { loading.value = false; }
    }

    function resetFilter() {
      keyword.value = ''; statusFilter.value = ''; pagination.page = 1; loadList();
    }

    function showAdd() {
      dialogTitle.value = '新增内容';
      Object.assign(form, { id: null, content_key: '', title: '', remark: '', content: '', sort: 0, status: 1 });
      dialogVisible.value = true;
      nextTick(() => initEditor(''));
    }

    async function showEdit(row) {
      dialogTitle.value = '编辑内容';
      const res = await fetch('/admin/content/detail?id=' + row.id).then(r => r.json());
      if (res.code !== 0) { ElementPlus.ElMessage.error(res.msg || '获取详情失败'); return; }
      const item = res.data;
      Object.assign(form, {
        id: item.id, content_key: item.content_key, title: item.title,
        remark: item.remark || '', content: item.content || '',
        sort: item.sort || 0, status: item.status
      });
      dialogVisible.value = true;
      nextTick(() => initEditor(form.content));
    }

    async function showPreview(row) {
      const res = await fetch('/admin/content/detail?id=' + row.id).then(r => r.json());
      if (res.code !== 0) { ElementPlus.ElMessage.error(res.msg || '获取详情失败'); return; }
      previewData.title = res.data.title || '';
      previewData.content = res.data.content || '';
      previewVisible.value = true;
    }

    function initEditor(html) {
      destroyEditor();
      const { createEditor, createToolbar } = window.wangEditor;
      editorInstance = createEditor({
        selector: '#editor-container',
        html: html || '',
        config: {
          placeholder: '请输入内容...',
          MENU_CONF: {
            uploadImage: {
              server: '/admin/upload', fieldName: 'file', maxFileSize: 5 * 1024 * 1024,
              customInsert(res, insertFn) {
                if (res.code === 0 && res.data && res.data.url) { insertFn(res.data.url, res.data.name || '', ''); }
                else { ElementPlus.ElMessage.error(res.msg || '上传失败'); }
              }
            }
          },
          onChange(editor) { form.content = editor.getHtml(); }
        }
      });
      createToolbar({ editor: editorInstance, selector: '#toolbar-container', config: {} });
    }

    function destroyEditor() {
      if (editorInstance) { try { editorInstance.destroy(); } catch (e) {} editorInstance = null; }
      var toolbar = document.getElementById('toolbar-container');
      var editor = document.getElementById('editor-container');
      if (toolbar) toolbar.innerHTML = '';
      if (editor) editor.innerHTML = '';
    }

    function onDialogClosed() { destroyEditor(); }

    async function handleSave() {
      if (!form.content_key.trim()) { ElementPlus.ElMessage.warning('内容标识不能为空'); return; }
      if (!form.title.trim()) { ElementPlus.ElMessage.warning('标题不能为空'); return; }
      saving.value = true;
      try {
        const url = form.id ? '/admin/content/edit' : '/admin/content/add';
        const body = { title: form.title, remark: form.remark, content: form.content, sort: form.sort, status: form.status };
        if (form.id) { body.id = form.id; } else { body.content_key = form.content_key; }
        const res = await fetch(url, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) }).then(r => r.json());
        if (res.code === 0) { ElementPlus.ElMessage.success('保存成功'); dialogVisible.value = false; loadList(); }
        else { ElementPlus.ElMessage.error(res.msg || '保存失败'); }
      } finally { saving.value = false; }
    }

    async function handleDelete(row) {
      try {
        await ElementPlus.ElMessageBox.confirm('确定要删除「' + row.title + '」吗？', '提示', { type: 'warning' });
        const res = await fetch('/admin/content/delete', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ id: row.id }) }).then(r => r.json());
        if (res.code === 0) { ElementPlus.ElMessage.success('删除成功'); loadList(); }
        else { ElementPlus.ElMessage.error(res.msg || '删除失败'); }
      } catch {}
    }

    onMounted(() => loadList());

    return {
      keyword, statusFilter, loading, tableData, pagination,
      dialogVisible, dialogTitle, saving, form,
      previewVisible, previewData,
      canAdd, canEdit, canDelete,
      loadList, resetFilter, showAdd, showEdit, showPreview, handleSave, handleDelete, onDialogClosed
    };
  }
});

app.use(ElementPlus, { locale: ElementPlusLocaleZhCn });
app.mount('#contentApp');
</script>
{% endblock %}