fix(v4.1.1): 待办事务功能优化

- 修复完成状态切换问题（可来回切换完成/未完成）
- 添加全部/未完成/已完成过滤按钮
- 翻页时保持弹窗滚动位置

xian_favor/api.py

@@ -2846,11 +2846,19 @@ async function deleteItem(id) {
 let currentDetailId = null;
 
 // 显示详情
-async function showDetail(id, todoPage = 1) {
+async function showDetail(id, todoPage = 1, todoFilter = 'all') {
     currentDetailId = id;
+    currentTodoPage = todoPage;
+    currentTodoFilter = todoFilter;
     
-    // 增加阅读数
-    await fetch(`${API_BASE}/items/${id}/view`, { method: 'POST' });
+    // 记录当前弹窗滚动位置
+    const detailContent = document.getElementById('detailContent');
+    const scrollTop = detailContent.scrollTop;
+    
+    // 增加阅读数（首次加载时才增加）
+    if (todoPage === 1 && todoFilter === 'all') {
+        await fetch(`${API_BASE}/items/${id}/view`, { method: 'POST' });
+    }
     
     const res = await fetch(`${API_BASE}/items/${id}`);
     const data = await res.json();
@@ -2915,21 +2923,46 @@ async function showDetail(id, todoPage = 1) {
     // 文本类型显示待办事务
     if (item.type === 'text') {
         const todoOffset = (todoPage - 1) * 10;
-        const todoRes = await fetch(`${API_BASE}/items/${id}/todo-events?limit=10&offset=${todoOffset}`);
-        const todoData = await todoRes.json();
+        
+        // 根据过滤状态获取数据
+        let todoRes = await fetch(`${API_BASE}/items/${id}/todo-events?limit=10&offset=${todoOffset}`);
+        let todoData = await todoRes.json();
+        
+        // 客户端过滤（因为API返回全部数据）
+        let filteredEvents = todoData.data;
+        let totalTodo = todoData.total;
+        
+        if (todoFilter === 'completed') {
+            filteredEvents = filteredEvents.filter(e => e.is_completed);
+            // 需要重新计算总数
+            const allRes = await fetch(`${API_BASE}/items/${id}/todo-events?limit=1000&offset=0`);
+            const allData = await allRes.json();
+            totalTodo = allData.data.filter(e => e.is_completed).length;
+        } else if (todoFilter === 'pending') {
+            filteredEvents = filteredEvents.filter(e => !e.is_completed);
+            const allRes = await fetch(`${API_BASE}/items/${id}/todo-events?limit=1000&offset=0`);
+            const allData = await allRes.json();
+            totalTodo = allData.data.filter(e => !e.is_completed).length;
+        }
         
         html += `<hr><div class="mb-3">
-            <div class="d-flex justify-content-between align-items-center">
+            <div class="d-flex justify-content-between align-items-center mb-2">
                 <strong><i class="bi bi-list-check"></i> 待办事务</strong>
                 <button class="btn btn-sm btn-outline-primary" onclick="showAddTodoEventModal(${item.id})">
                     <i class="bi bi-plus"></i> 添加事务
                 </button>
             </div>
+            <!-- 过滤按钮 -->
+            <div class="btn-group btn-group-sm mb-2" role="group">
+                <button class="btn ${todoFilter === 'all' ? 'btn-primary' : 'btn-outline-secondary'}" onclick="showDetail(${id}, 1, 'all')">全部</button>
+                <button class="btn ${todoFilter === 'pending' ? 'btn-warning' : 'btn-outline-warning'}" onclick="showDetail(${id}, 1, 'pending')">未完成</button>
+                <button class="btn ${todoFilter === 'completed' ? 'btn-success' : 'btn-outline-success'}" onclick="showDetail(${id}, 1, 'completed')">已完成</button>
+            </div>
         </div>`;
         
-        if (todoData.success && todoData.data.length > 0) {
+        if (filteredEvents.length > 0) {
             html += `<div class="border rounded p-2 bg-light" id="todoEventsList">`;
-            todoData.data.forEach(event => {
+            filteredEvents.forEach(event => {
                 const completedClass = event.is_completed ? 'text-muted' : '';
                 const checkIcon = event.is_completed ? '✅' : '⏳';
                 const remainingText = event.remaining_days > 0 ? `${event.remaining_days}天` : '已过期';
@@ -2938,7 +2971,7 @@ async function showDetail(id, todoPage = 1) {
                 html += `<div class="d-flex justify-content-between align-items-start py-2 border-bottom todo-event-item ${completedClass}">
                     <div class="flex-grow-1">
                         <div class="d-flex align-items-center gap-2">
-                            <span onclick="toggleTodoEventComplete(${event.id}, ${item.id})" style="cursor:pointer;" title="点击切换完成状态">${checkIcon}</span>
+                            <span onclick="toggleTodoEventComplete(${event.id}, ${item.id}, ${event.is_completed})" style="cursor:pointer;" title="点击切换完成状态">${checkIcon}</span>
                             <span class="${event.is_completed ? 'text-decoration-line-through' : ''}">${escapeHtml(event.content)}</span>
                             <small class="${remainingClass}">(${remainingText})</small>
                         </div>
@@ -2959,26 +2992,25 @@ async function showDetail(id, todoPage = 1) {
             html += `</div>`;
             
             // 分页
-            const totalTodo = todoData.total;
             const totalPagesTodo = Math.ceil(totalTodo / 10);
             if (totalPagesTodo > 1) {
                 html += `<div class="d-flex justify-content-center mt-2">
                     <nav><ul class="pagination pagination-sm">`;
                 for (let p = 1; p <= Math.min(totalPagesTodo, 5); p++) {
                     html += `<li class="page-item ${p === todoPage ? 'active' : ''}">
-                        <a class="page-link" href="#" onclick="showDetail(${id}, ${p}); return false;">${p}</a>
+                        <a class="page-link" href="#" onclick="showDetail(${id}, ${p}, '${todoFilter}'); return false;">${p}</a>
                     </li>`;
                 }
                 if (totalPagesTodo > 5) {
                     html += `<li class="page-item disabled"><span class="page-link">...</span></li>`;
-                    html += `<li class="page-item"><a class="page-link" href="#" onclick="showDetail(${id}, ${totalPagesTodo}); return false;">${totalPagesTodo}</a></li>`;
+                    html += `<li class="page-item"><a class="page-link" href="#" onclick="showDetail(${id}, ${totalPagesTodo}, '${todoFilter}'); return false;">${totalPagesTodo}</a></li>`;
                 }
                 html += `</ul></nav>
                     <small class="text-muted ms-2">共 ${totalTodo} 条事务</small>
                 </div>`;
             }
         } else {
-            html += `<div class="text-center text-muted py-3">暂无待办事务</div>`;
+            html += `<div class="text-center text-muted py-3">${todoFilter === 'all' ? '暂无待办事务' : (todoFilter === 'completed' ? '暂无已完成事务' : '暂无未完成事务')}</div>`;
         }
     }
     
@@ -3020,7 +3052,17 @@ async function showDetail(id, todoPage = 1) {
     
     document.getElementById('detailContent').innerHTML = html;
     
-    new bootstrap.Modal(document.getElementById('detailModal')).show();
+    // 如果弹窗已经打开，保持滚动位置
+    const modal = bootstrap.Modal.getInstance(document.getElementById('detailModal'));
+    if (modal && modal._isShown) {
+        // 弹窗已打开，恢复滚动位置
+        setTimeout(() => {
+            document.getElementById('detailContent').scrollTop = scrollTop;
+        }, 10);
+    } else {
+        // 弹窗未打开，打开弹窗
+        new bootstrap.Modal(document.getElementById('detailModal')).show();
+    }
 }
 
 // ============ 待办事务功能 ============
@@ -3085,7 +3127,7 @@ async function saveTodoEvent() {
         
         if (data.success) {
             bootstrap.Modal.getInstance(document.getElementById('todoEventModal')).hide();
-            showDetail(itemId, 1);  // 刷新详情，回到第一页
+            showDetail(itemId, currentTodoPage, currentTodoFilter);  // 刷新详情，保持页面和过滤状态
         } else {
             alert('更新失败: ' + data.error);
         }
@@ -3100,30 +3142,40 @@ async function saveTodoEvent() {
         
         if (data.success) {
             bootstrap.Modal.getInstance(document.getElementById('todoEventModal')).hide();
-            showDetail(itemId, 1);  // 刷新详情，回到第一页
+            showDetail(itemId, 1, currentTodoFilter);  // 创建新事务后回到第一页
         } else {
             alert('创建失败: ' + data.error);
         }
     }
 }
 
-// 切换待办事务完成状态
-async function toggleTodoEventComplete(eventId, itemId) {
+// 切换待办事务完成状态（可切换为完成或未完成）
+async function toggleTodoEventComplete(eventId, itemId, currentCompleted) {
     // 离线检查
     if (!checkOnlineBeforeAction('切换完成状态')) return;
     
-    const res = await fetch(`${API_BASE}/todo-events/${eventId}/complete`, {
-        method: 'POST'
+    // 切换状态：已完成->未完成，未完成->已完成
+    const newCompleted = !currentCompleted;
+    
+    const res = await fetch(`${API_BASE}/todo-events/${eventId}`, {
+        method: 'PUT',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ is_completed: newCompleted })
     });
     const data = await res.json();
     
     if (data.success) {
-        showDetail(itemId, 1);  // 刷新详情
+        // 保持当前页面和过滤状态
+        showDetail(itemId, currentTodoPage, currentTodoFilter);
     } else {
         alert('操作失败: ' + data.error);
     }
 }
 
+// 当前待办事务的页面和过滤状态
+let currentTodoPage = 1;
+let currentTodoFilter = 'all';  // all, completed, pending
+
 // 删除待办事务
 async function deleteTodoEvent(eventId, itemId) {
     // 离线检查
@@ -3137,7 +3189,7 @@ async function deleteTodoEvent(eventId, itemId) {
     const data = await res.json();
     
     if (data.success) {
-        showDetail(itemId, 1);  // 刷新详情
+        showDetail(itemId, currentTodoPage, currentTodoFilter);  // 刷新详情，保持页面和过滤状态
     } else {
         alert('删除失败: ' + data.error);
     }