@echo off
REM Multi-Household Migration Runner (Windows)
REM This script handles the complete migration process with safety checks

setlocal enabledelayedexpansion

REM Database configuration
set DB_USER=postgres
set DB_HOST=192.168.7.112
set DB_NAME=grocery
set PGPASSWORD=Asdwed123A.

set BACKUP_DIR=backend\migrations\backups
set TIMESTAMP=%date:~-4%%date:~-10,2%%date:~-7,2%_%time:~0,2%%time:~3,2%%time:~6,2%
set TIMESTAMP=%TIMESTAMP: =0%
set BACKUP_FILE=%BACKUP_DIR%\backup_%TIMESTAMP%.sql

echo ================================================
echo   Multi-Household Architecture Migration
echo ================================================
echo.

REM Create backup directory
if not exist "%BACKUP_DIR%" mkdir "%BACKUP_DIR%"

REM Step 1: Backup (SKIPPED - using database template copy)
echo [1/5] Backup: SKIPPED (using 'grocery' database copy)
echo.

REM Step 2: Show current stats
echo [2/5] Current database statistics:
psql -h %DB_HOST% -U %DB_USER% -d %DB_NAME% -c "SELECT 'Users' as table_name, COUNT(*) as count FROM users UNION ALL SELECT 'Grocery Items', COUNT(*) FROM grocery_list UNION ALL SELECT 'Classifications', COUNT(*) FROM item_classification UNION ALL SELECT 'History Records', COUNT(*) FROM grocery_history;"
echo.

REM Step 3: Confirm
echo [3/5] Ready to run migration
echo Database: %DB_NAME% on %DB_HOST%
echo Backup: %BACKUP_FILE%
echo.
set /p CONFIRM="Continue with migration? (yes/no): "
if /i not "%CONFIRM%"=="yes" (
    echo Migration cancelled.
    exit /b 0
)
echo.

REM Step 4: Run migration
echo [4/5] Running migration script...
psql -h %DB_HOST% -U %DB_USER% -d %DB_NAME% -f backend\migrations\multi_household_architecture.sql
if %errorlevel% neq 0 (
    echo [ERROR] Migration failed! Rolling back...
    echo Restoring from backup: %BACKUP_FILE%
    psql -h %DB_HOST% -U %DB_USER% -d %DB_NAME% < "%BACKUP_FILE%"
    exit /b 1
)
echo [OK] Migration completed successfully
echo.

REM Step 5: Verification
echo [5/5] Verifying migration...
psql -h %DB_HOST% -U %DB_USER% -d %DB_NAME% -c "SELECT id, name, invite_code FROM households;"
psql -h %DB_HOST% -U %DB_USER% -d %DB_NAME% -c "SELECT u.id, u.username, u.role as system_role, hm.role as household_role FROM users u LEFT JOIN household_members hm ON u.id = hm.user_id ORDER BY u.id LIMIT 10;"
psql -h %DB_HOST% -U %DB_USER% -d %DB_NAME% -c "SELECT 'Items' as metric, COUNT(*)::text as count FROM items UNION ALL SELECT 'Household Lists', COUNT(*)::text FROM household_lists UNION ALL SELECT 'Classifications', COUNT(*)::text FROM household_item_classifications UNION ALL SELECT 'History Records', COUNT(*)::text FROM household_list_history;"
echo.

echo ================================================
echo   Migration Complete!
echo ================================================
echo.
echo Next Steps:
echo 1. Review verification results above
echo 2. Test the application
echo 3. If issues found, rollback with:
echo    psql -h %DB_HOST% -U %DB_USER% -d %DB_NAME% ^< %BACKUP_FILE%
echo 4. If successful, proceed to Sprint 2 (Backend API)
echo.
echo Backup location: %BACKUP_FILE%
echo.

pause