add summary

Reviewed-on: #3

.gitignore

@@ -14,3 +14,4 @@ data/*.db
 **/.Spotlight-V100
 .Trashes
 **/.Trashes
+.codex

README.md

@@ -18,10 +18,29 @@
 - Box / Item / SubItem 基础 CRUD
 - Box / Item / SubItem 单图上传、替换、删除、展示
 - Box / Item / SubItem 全局搜索
+- 最小 PWA 安装支持（主屏幕 / 桌面安装）
 - Docker / Compose 长期运行
 - SQLite 数据持久化
 - 基础自动化测试
 
+## PWA 安装支持
+
+当前版本在不改变 FastAPI + Jinja2 SSR 结构的前提下，补充了最小可维护的 PWA 能力：
+
+- 提供根路径 `manifest.webmanifest`
+- 提供根路径 `service-worker.js`
+- 在基础模板中注入 `manifest`、`theme-color`、`apple-touch-icon` 和安装相关 meta
+- 支持 Android Chrome 添加到主屏幕
+- 支持 iPhone Safari 添加到主屏幕
+- 支持桌面 Chrome / Edge 安装为独立 app 窗口
+
+当前新增的安装图标尺寸：
+
+- `180x180`：Apple touch icon
+- `192x192`：Android / Chromium 安装图标
+- `512x512`：高分辨率安装图标
+- `512x512`：maskable 图标
+
 ## 当前数据模型
 
 这个项目不是无限树结构，而是固定最多 3 级：
@@ -110,6 +129,9 @@ Box
 
 这一阶段仍然没有实现以下内容：
 
+- 离线访问
+- 离线缓存策略
+- 离线数据同步
 - 多图上传
 - OCR
 - AI 识别物品
@@ -223,6 +245,22 @@ uvicorn app.main:app --reload --host 0.0.0.0 --port 10000
 http://localhost:10000
 ```
 
+本地开发验证 PWA 时，页面与安装元数据可以直接检查；如果要完整验证桌面安装体验，优先在 HTTPS 或受信任反向代理环境下测试。
+
+## PWA 部署注意事项
+
+- 生产环境应使用 HTTPS；Android Chrome 和桌面 Chrome / Edge 的安装能力通常要求安全上下文
+- `manifest.webmanifest` 需要返回 `application/manifest+json`
+- `service-worker.js` 需要从站点根路径返回，保证作用域覆盖整个应用
+- 如果前面有 nginx 或其他反向代理，不要拦截或改写这两个根路径资源
+- iPhone Safari 的“添加到主屏幕”主要依赖 meta 和 `apple-touch-icon`，不包含离线能力
+
+## PWA 简单验收
+
+1. Android Chrome：打开站点，确认浏览器菜单或地址栏出现“添加到主屏幕”或“安装应用”。
+2. iPhone Safari：打开站点，点击分享菜单，确认可见“添加到主屏幕”。
+3. Desktop Chrome / Edge：打开站点，确认地址栏或菜单中出现“安装应用”。
+
 本地默认数据库位置：
 
 ```text

app/main.py

@@ -1,7 +1,8 @@
 from contextlib import asynccontextmanager
+from pathlib import Path
 
 from fastapi import Depends, FastAPI, File, Form, HTTPException, Request, UploadFile, status
-from fastapi.responses import RedirectResponse, Response
+from fastapi.responses import FileResponse, RedirectResponse, Response
 from fastapi.staticfiles import StaticFiles
 from fastapi.templating import Jinja2Templates
 from sqlalchemy import func, or_
@@ -12,6 +13,7 @@ from app.images import process_upload
 from app.models import Box, Item, SubItem
 
 templates = Jinja2Templates(directory="app/templates")
+STATIC_DIR = Path("app/static")
 
 
 def _clean_text(value: str | None) -> str | None:
@@ -86,6 +88,35 @@ def _wants_add_next(submit_action: str | None) -> bool:
     return submit_action == "save_and_add_next"
 
 
+def _format_average(total: int, divisor: int) -> str:
+    if divisor == 0:
+        return "0.0"
+    return f"{total / divisor:.1f}"
+
+
+def _build_boxes_overview_summary(db: Session) -> dict[str, int | str]:
+    box_count = db.query(func.count(Box.id)).scalar() or 0
+    item_count = db.query(func.count(Item.id)).scalar() or 0
+    subitem_count = db.query(func.count(SubItem.id)).scalar() or 0
+    container_item_count = (
+        db.query(func.count(Item.id))
+        .filter(Item.is_container.is_(True))
+        .scalar()
+        or 0
+    )
+
+    return {
+        "box_count": box_count,
+        "item_count": item_count,
+        "item_and_subitem_count": item_count + subitem_count,
+        "avg_items_per_box": _format_average(item_count, box_count),
+        "avg_subitems_per_container_item": _format_average(
+            subitem_count,
+            container_item_count,
+        ),
+    }
+
+
 def _build_search_results(db: Session, query: str) -> list[dict]:
     keyword = f"%{query.lower()}%"
     results: list[dict] = []
@@ -193,6 +224,20 @@ def create_app() -> FastAPI:
     def root() -> RedirectResponse:
         return RedirectResponse(url="/boxes", status_code=status.HTTP_302_FOUND)
 
+    @app.get("/manifest.webmanifest", include_in_schema=False)
+    def manifest() -> FileResponse:
+        return FileResponse(
+            path=STATIC_DIR / "manifest.webmanifest",
+            media_type="application/manifest+json",
+        )
+
+    @app.get("/service-worker.js", include_in_schema=False)
+    def service_worker() -> FileResponse:
+        return FileResponse(
+            path=STATIC_DIR / "service-worker.js",
+            media_type="application/javascript",
+        )
+
     @app.get("/search")
     def search_page(
         request: Request,
@@ -215,10 +260,11 @@ def create_app() -> FastAPI:
     @app.get("/boxes")
     def list_boxes(request: Request, db: Session = Depends(get_db)):
         boxes = db.query(Box).order_by(Box.id.desc()).all()
+        summary = _build_boxes_overview_summary(db)
         return templates.TemplateResponse(
             request=request,
             name="boxes/index.html",
-            context={"page_title": "箱子", "boxes": boxes},
+            context={"page_title": "箱子", "boxes": boxes, "summary": summary},
         )
 
     @app.get("/boxes/new")

app/static/manifest.webmanifest

@@ -0,0 +1,31 @@
+{
+  "name": "搬家助手",
+  "short_name": "搬家助手",
+  "description": "用于记录搬家装箱内容并快速搜索的轻量工具。",
+  "start_url": "/boxes",
+  "scope": "/",
+  "display": "standalone",
+  "orientation": "portrait-primary",
+  "background_color": "#f4f4f4",
+  "theme_color": "#0b57d0",
+  "icons": [
+    {
+      "src": "/static/icons/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/static/icons/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/static/icons/icon-512-maskable.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ]
+}

app/static/service-worker.js

@@ -0,0 +1,7 @@
+self.addEventListener("install", function () {
+    self.skipWaiting();
+});
+
+self.addEventListener("activate", function (event) {
+    event.waitUntil(self.clients.claim());
+});

app/static/style.css

@@ -231,6 +231,25 @@ button:focus-visible {
     gap: 10px;
 }
 
+.summary-section {
+    margin-bottom: 18px;
+}
+
+.summary-block {
+    padding-top: 12px;
+    padding-bottom: 12px;
+}
+
+.summary-list {
+    margin: 0;
+    padding-left: 18px;
+    color: #333;
+}
+
+.summary-list li + li {
+    margin-top: 6px;
+}
+
 .compact-row {
     display: grid;
     grid-template-columns: auto 1fr auto;

app/templates/base.html

@@ -3,7 +3,15 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="theme-color" content="#0b57d0">
+    <meta name="mobile-web-app-capable" content="yes">
+    <meta name="apple-mobile-web-app-capable" content="yes">
+    <meta name="apple-mobile-web-app-title" content="搬家助手">
+    <meta name="apple-mobile-web-app-status-bar-style" content="default">
     <title>{{ page_title or "搬家助手" }}</title>
+    <link rel="manifest" href="/manifest.webmanifest">
+    <link rel="icon" href="/static/icons/icon-192.png" sizes="192x192" type="image/png">
+    <link rel="apple-touch-icon" href="/static/icons/apple-touch-icon.png" sizes="180x180">
     <link rel="stylesheet" href="/static/style.css">
 </head>
 <body>
@@ -15,6 +23,12 @@
         {% block content %}{% endblock %}
     </main>
     <script>
+        if ("serviceWorker" in navigator) {
+            window.addEventListener("load", function () {
+                navigator.serviceWorker.register("/service-worker.js");
+            });
+        }
+
         document.addEventListener("click", function (event) {
             const card = event.target.closest(".clickable-card[data-href]");
             if (!card) return;

app/templates/boxes/index.html

@@ -15,6 +15,22 @@
     <a class="button button-primary" href="/boxes/new">新建箱子</a>
 </div>
 
+<section class="stack summary-section">
+    <div class="section-heading">
+        <h2>当前概览</h2>
+        <p class="muted">快速查看当前装箱记录的核心统计。</p>
+    </div>
+    <section class="card summary-block">
+        <ul class="summary-list">
+            <li><strong>箱子总数：</strong>{{ summary.box_count }}</li>
+            <li><strong>物品总数（不含子物品）：</strong>{{ summary.item_count }}</li>
+            <li><strong>物品总数（含子物品）：</strong>{{ summary.item_and_subitem_count }}</li>
+            <li><strong>平均每箱物品数：</strong>{{ summary.avg_items_per_box }}</li>
+            <li><strong>平均每个容器型 Item 的子物品数：</strong>{{ summary.avg_subitems_per_container_item }}</li>
+        </ul>
+    </section>
+</section>
+
 {% if boxes %}
 <div class="overview-grid">
     {% for box in boxes %}

app/templates/items/form.html

@@ -44,21 +44,6 @@
         名称
         <input type="text" name="name" value="{{ item.name if item else '' }}" required autofocus>
     </label>
-    <label class="form-field">
-        数量
-        <input type="number" name="quantity" min="0" value="{{ item.quantity if item and item.quantity is not none else '1' }}">
-    </label>
-    <label class="checkbox-row">
-        <input type="checkbox" name="is_container" {% if item and item.is_container %}checked{% endif %}>
-        这个物品本身是一个小容器
-    </label>
-    <div class="checkbox-help">
-        勾选后，这个 Item 将作为“第二层容器”，后续可以继续往里面添加最后一级的 SubItem。
-    </div>
-    <label class="form-field">
-        备注
-        <textarea name="note" rows="4">{{ item.note if item and item.note else '' }}</textarea>
-    </label>
     <label class="form-field">
         图片
         <input type="file" name="image_file" accept="image/*">
@@ -77,6 +62,21 @@
         </button>
     </section>
     {% endif %}
+    <label class="form-field">
+        数量
+        <input type="number" name="quantity" min="0" value="{{ item.quantity if item and item.quantity is not none else '1' }}">
+    </label>
+    <label class="checkbox-row">
+        <input type="checkbox" name="is_container" {% if item and item.is_container %}checked{% endif %}>
+        这个物品本身是一个小容器
+    </label>
+    <div class="checkbox-help">
+        勾选后，这个 Item 将作为“第二层容器”，后续可以继续往里面添加最后一级的 SubItem。
+    </div>
+    <label class="form-field">
+        备注
+        <textarea name="note" rows="4">{{ item.note if item and item.note else '' }}</textarea>
+    </label>
     <div class="form-actions">
         <button type="submit" name="submit_action" value="save" class="button button-primary">{{ submit_label }}</button>
         {% if not item %}

app/templates/items/show.html

@@ -70,6 +70,11 @@
                     <span>上级容器：{{ item.name }}</span>
                 </div>
                 {% if subitem.note %}<p class="row-note">备注：{{ subitem.note }}</p>{% endif %}
+                <div class="actions">
+                    <form method="post" action="/subitems/{{ subitem.id }}/delete">
+                        <button type="submit" class="button button-danger button-small">删除子物品</button>
+                    </form>
+                </div>
             </div>
         </article>
         {% endfor %}

app/templates/subitems/form.html

@@ -46,14 +46,6 @@
         名称
         <input type="text" name="name" value="{{ subitem.name if subitem else '' }}" required autofocus>
     </label>
-    <label class="form-field">
-        数量
-        <input type="number" name="quantity" min="0" value="{{ subitem.quantity if subitem and subitem.quantity is not none else '1' }}">
-    </label>
-    <label class="form-field">
-        备注
-        <textarea name="note" rows="4">{{ subitem.note if subitem and subitem.note else '' }}</textarea>
-    </label>
     <label class="form-field">
         图片
         <input type="file" name="image_file" accept="image/*">
@@ -72,6 +64,14 @@
         </button>
     </section>
     {% endif %}
+    <label class="form-field">
+        数量
+        <input type="number" name="quantity" min="0" value="{{ subitem.quantity if subitem and subitem.quantity is not none else '1' }}">
+    </label>
+    <label class="form-field">
+        备注
+        <textarea name="note" rows="4">{{ subitem.note if subitem and subitem.note else '' }}</textarea>
+    </label>
     <div class="form-actions">
         <button type="submit" name="submit_action" value="save" class="button button-primary">{{ submit_label }}</button>
         {% if not subitem %}

tests/test_app.py

@@ -111,6 +111,39 @@ def test_boxes_page_uses_relative_stylesheet_path(client):
     assert "http://" not in response.text.split("/static/style.css")[0]
 
 
+def test_base_template_includes_pwa_metadata(client):
+    response = client.get("/boxes")
+
+    assert response.status_code == 200
+    assert 'rel="manifest" href="/manifest.webmanifest"' in response.text
+    assert 'name="theme-color" content="#0b57d0"' in response.text
+    assert 'rel="apple-touch-icon" href="/static/icons/apple-touch-icon.png"' in response.text
+    assert 'navigator.serviceWorker.register("/service-worker.js")' in response.text
+
+
+def test_manifest_is_served_with_pwa_fields(client):
+    response = client.get("/manifest.webmanifest")
+
+    assert response.status_code == 200
+    assert response.headers["content-type"].startswith("application/manifest+json")
+
+    manifest = response.json()
+    assert manifest["name"] == "搬家助手"
+    assert manifest["short_name"] == "搬家助手"
+    assert manifest["start_url"] == "/boxes"
+    assert manifest["display"] == "standalone"
+    assert any(icon["sizes"] == "192x192" for icon in manifest["icons"])
+    assert any(icon["purpose"] == "maskable" for icon in manifest["icons"])
+
+
+def test_service_worker_is_served_from_root(client):
+    response = client.get("/service-worker.js")
+
+    assert response.status_code == 200
+    assert response.headers["content-type"].startswith("application/javascript")
+    assert 'self.addEventListener("install"' in response.text
+
+
 def test_boxes_overview_card_shows_note_and_item_count_without_room_or_status(client, db_session):
     box = Box(
         name="Kitchen Box",
@@ -145,6 +178,53 @@ def test_boxes_overview_renders_cleanly_when_note_is_empty(client, db_session):
     assert "状态：" not in response.text
 
 
+def test_boxes_overview_summary_shows_expected_counts_and_averages(client, db_session):
+    first_box = Box(name="卧室箱")
+    second_box = Box(name="书房箱")
+    regular_item = Item(name="书", box=first_box, is_container=False)
+    container_item = Item(name="配件袋", box=first_box, is_container=True)
+    second_container_item = Item(name="文件袋", box=second_box, is_container=True)
+    db_session.add_all(
+        [
+            first_box,
+            second_box,
+            regular_item,
+            container_item,
+            second_container_item,
+            SubItem(name="转接头", parent_item=container_item),
+            SubItem(name="数据线", parent_item=container_item),
+        ]
+    )
+    db_session.commit()
+
+    response = client.get("/boxes")
+
+    assert response.status_code == 200
+    assert "当前概览" in response.text
+    assert "箱子总数" in response.text
+    assert "物品总数（不含子物品）" in response.text
+    assert "物品总数（含子物品）" in response.text
+    assert "平均每箱物品数" in response.text
+    assert "平均每个容器型 Item 的子物品数" in response.text
+    assert "箱子总数：</strong>2" in response.text
+    assert "物品总数（不含子物品）：</strong>3" in response.text
+    assert "物品总数（含子物品）：</strong>5" in response.text
+    assert "平均每箱物品数：</strong>1.5" in response.text
+    assert "平均每个容器型 Item 的子物品数：</strong>1.0" in response.text
+
+
+def test_boxes_overview_summary_handles_empty_data_safely(client):
+    response = client.get("/boxes")
+
+    assert response.status_code == 200
+    assert "当前概览" in response.text
+    assert "箱子总数：</strong>0" in response.text
+    assert "物品总数（不含子物品）：</strong>0" in response.text
+    assert "物品总数（含子物品）：</strong>0" in response.text
+    assert "平均每箱物品数：</strong>0.0" in response.text
+    assert "平均每个容器型 Item 的子物品数：</strong>0.0" in response.text
+
+
 def test_can_create_box(client, db_session):
     response = create_box(client, name="Kitchen Box")
 
@@ -842,6 +922,7 @@ def test_new_item_page_shows_clear_context_and_default_quantity(client, db_sessi
     assert "主卧箱" in response.text
     assert 'name="quantity"' in response.text
     assert 'value="1"' in response.text
+    assert response.text.index('name="name"') < response.text.index('name="image_file"') < response.text.index('name="quantity"')
     assert "这个物品本身是一个小容器" in response.text
     assert "保存并添加下一个" in response.text
 
@@ -860,6 +941,7 @@ def test_new_subitem_page_shows_clear_context_and_default_quantity(client, db_se
     assert "文件袋" in response.text
     assert 'name="quantity"' in response.text
     assert 'value="1"' in response.text
+    assert response.text.index('name="name"') < response.text.index('name="image_file"') < response.text.index('name="quantity"')
     assert "保存并添加下一个" in response.text
 
 
@@ -893,6 +975,7 @@ def test_item_detail_page_renders_clear_hierarchy(client, db_session):
     assert "书房箱" in response.text
     assert "SubItem" in response.text
     assert f'data-href="/subitems/{subitem.id}/edit"' in response.text
+    assert f'action="/subitems/{subitem.id}/delete"' in response.text
     assert "overview-grid" in response.text