为各类别添加数据导入导出功能

modules/routes/api_items.py

@@ -2,8 +2,9 @@
 动态分类数据 API
 """
 import uuid
+import json
 from datetime import datetime
-from flask import Blueprint, request, jsonify
+from flask import Blueprint, request, jsonify, Response
 from config import DATA_DIR
 from utils import load_data, save_data, parse_date_to_timestamp
 
@@ -95,3 +96,66 @@ def api_toggle_item_visible(category_id, item_id):
     item['visible'] = not item.get('visible', True)
     save_data(items_file, items)
     return jsonify({'success': True, 'visible': item['visible']})
+
+
+# ─── 导出导入 ───────────────────────────────────────────────────────
+
+@items_bp.route('/api/items/<category_id>/export', methods=['GET'])
+def api_export_items(category_id):
+    """导出指定分类的所有数据"""
+    try:
+        items_file = DATA_DIR / f'items_{category_id}.json'
+        items = load_data(items_file)
+        export_data = {
+            'type': 'items',
+            'category_id': category_id,
+            'items': items,
+            'count': len(items),
+            'export_time': datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
+            'version': '1.0'
+        }
+        json_str = json.dumps(export_data, ensure_ascii=False, indent=2)
+        response = Response(
+            json_str,
+            mimetype='application/json',
+            headers={'Content-Disposition': f'attachment; filename={category_id}-export-{datetime.now().strftime("%Y%m%d%H%M%S")}.json'}
+        )
+        return response
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500
+
+
+@items_bp.route('/api/items/<category_id>/import', methods=['GET', 'POST'])
+def api_import_items(category_id):
+    """导入指定分类的数据"""
+    try:
+        if request.method == 'GET':
+            return jsonify({'endpoint': f'/api/items/{category_id}/import', 'method': 'POST', 'params': {'mode': 'merge 或 replace'}})
+        
+        import_data = request.get_json()
+        if not import_data or 'items' not in import_data:
+            return jsonify({'error': '缺少 items 字段'}), 400
+        
+        mode = request.args.get('mode', 'merge')
+        items_file = DATA_DIR / f'items_{category_id}.json'
+        items = load_data(items_file)
+        imported_items = import_data['items']
+        
+        result = {'success': True, 'imported': 0, 'updated': 0, 'skipped': []}
+        
+        for item in imported_items:
+            existing = next((i for i in items if i['id'] == item['id']), None)
+            if existing:
+                if mode == 'replace':
+                    existing.update(item)
+                    result['updated'] += 1
+                else:
+                    result['skipped'].append(item['id'])
+            else:
+                items.append(item)
+                result['imported'] += 1
+        
+        save_data(items_file, items)
+        return jsonify(result)
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500