新增資料庫架構

scripts/clear-all-data.sql

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+-- 心願星河 - 清空所有數據
+-- ⚠️ 警告：此腳本將永久刪除所有數據，請謹慎使用！
+-- 建議：在生產環境執行前請備份重要數據
+
+-- 開始事務
+BEGIN;
+
+-- 0. 修復 migration_log 表約束問題
+DO $$
+BEGIN
+    -- 移除舊的約束
+    ALTER TABLE migration_log DROP CONSTRAINT IF EXISTS migration_log_migration_type_check;
+    
+    -- 添加新的約束，包含所有需要的類型
+    ALTER TABLE migration_log ADD CONSTRAINT migration_log_migration_type_check 
+    CHECK (migration_type IN ('wishes', 'likes', 'settings', 'storage_cleanup', 'data_cleanup', 'image_cleanup'));
+    
+    RAISE NOTICE '🔧 migration_log 表約束已修復';
+EXCEPTION
+    WHEN OTHERS THEN
+        RAISE NOTICE '⚠️ 修復約束時發生錯誤，但繼續執行: %', SQLERRM;
+END $$;
+
+-- 顯示警告訊息
+DO $$
+BEGIN
+    RAISE NOTICE '';
+    RAISE NOTICE '🚨 準備清空所有數據...';
+    RAISE NOTICE '⚠️  這將永久刪除：';
+    RAISE NOTICE '   - 所有困擾案例 (wishes)';
+    RAISE NOTICE '   - 所有點讚記錄 (wish_likes)';
+    RAISE NOTICE '   - 所有用戶設定 (user_settings)';
+    RAISE NOTICE '   - 遷移記錄 (migration_log)';
+    RAISE NOTICE '   - 系統統計 (system_stats)';
+    RAISE NOTICE '   - 存儲使用記錄 (storage_usage)';
+    RAISE NOTICE '   - 存儲清理記錄 (storage_cleanup_log)';
+    RAISE NOTICE '';
+END $$;
+
+-- 1. 清空所有數據表（按依賴關係順序）
+DO $$
+DECLARE
+    table_count INTEGER;
+BEGIN
+    -- 清空有外鍵關係的表格
+    DELETE FROM wish_likes;
+    GET DIAGNOSTICS table_count = ROW_COUNT;
+    RAISE NOTICE '🗑️ 已清空 wish_likes 表，刪除 % 條記錄', table_count;
+    
+    DELETE FROM wishes;
+    GET DIAGNOSTICS table_count = ROW_COUNT;
+    RAISE NOTICE '🗑️ 已清空 wishes 表，刪除 % 條記錄', table_count;
+    
+    DELETE FROM user_settings;
+    GET DIAGNOSTICS table_count = ROW_COUNT;
+    RAISE NOTICE '🗑️ 已清空 user_settings 表，刪除 % 條記錄', table_count;
+    
+    DELETE FROM migration_log;
+    GET DIAGNOSTICS table_count = ROW_COUNT;
+    RAISE NOTICE '🗑️ 已清空 migration_log 表，刪除 % 條記錄', table_count;
+    
+    DELETE FROM system_stats;
+    GET DIAGNOSTICS table_count = ROW_COUNT;
+    RAISE NOTICE '🗑️ 已清空 system_stats 表，刪除 % 條記錄', table_count;
+    
+    DELETE FROM storage_usage;
+    GET DIAGNOSTICS table_count = ROW_COUNT;
+    RAISE NOTICE '🗑️ 已清空 storage_usage 表，刪除 % 條記錄', table_count;
+    
+    DELETE FROM storage_cleanup_log;
+    GET DIAGNOSTICS table_count = ROW_COUNT;
+    RAISE NOTICE '🗑️ 已清空 storage_cleanup_log 表，刪除 % 條記錄', table_count;
+END $$;
+
+-- 2. 重置自增序列
+DO $$
+BEGIN
+    RAISE NOTICE '';
+    RAISE NOTICE '🔄 重置自增序列...';
+    
+    -- 重置所有表格的序列
+    ALTER SEQUENCE wishes_id_seq RESTART WITH 1;
+    ALTER SEQUENCE wish_likes_id_seq RESTART WITH 1;
+    ALTER SEQUENCE user_settings_id_seq RESTART WITH 1;
+    ALTER SEQUENCE migration_log_id_seq RESTART WITH 1;
+    ALTER SEQUENCE system_stats_id_seq RESTART WITH 1;
+    ALTER SEQUENCE storage_usage_id_seq RESTART WITH 1;
+    ALTER SEQUENCE storage_cleanup_log_id_seq RESTART WITH 1;
+    
+    RAISE NOTICE '✅ 所有序列已重置為 1';
+END $$;
+
+-- 3. 重新插入初始統計記錄
+INSERT INTO storage_usage (bucket_name, total_files, total_size_bytes)
+VALUES 
+    ('wish-images', 0, 0),
+    ('wish-thumbnails', 0, 0);
+
+INSERT INTO system_stats (stat_date, total_wishes, public_wishes, private_wishes, total_likes, active_users, storage_used_mb)
+VALUES (CURRENT_DATE, 0, 0, 0, 0, 0, 0);
+
+-- 4. 記錄清空操作
+INSERT INTO migration_log (
+    user_session,
+    migration_type,
+    target_records,
+    success,
+    error_message
+) VALUES (
+    'system-admin',
+    'data_cleanup',
+    0,
+    true,
+    'All data cleared by admin request at ' || NOW()
+);
+
+-- 提交事務
+COMMIT;
+
+-- 顯示完成訊息
+DO $$
+BEGIN
+    RAISE NOTICE '';
+    RAISE NOTICE '✅ 資料庫清空完成！';
+    RAISE NOTICE '📊 重置統計：';
+    RAISE NOTICE '   - 所有表格已清空';
+    RAISE NOTICE '   - 自增序列已重置';
+    RAISE NOTICE '   - 初始統計記錄已重新建立';
+    RAISE NOTICE '';
+    RAISE NOTICE '⚠️  注意：';
+    RAISE NOTICE '   - Storage 中的檔案需要手動清空';
+    RAISE NOTICE '   - 可以使用 clear-storage.js 腳本清空圖片';
+    RAISE NOTICE '';
+END $$;