@echo off
REM RMAN Restore Database FROM ZERO - Clean State
REM Backups are on F:\ (NFS mount from Proxmox host)
REM This script:
REM   1. Cleans up any existing database (calls cleanup_database.cmd)
REM   2. Restores from F:\ backups
REM   3. Verifies database
REM Run this script as Administrator on DR VM (10.0.20.37)
REM Location: D:\oracle\scripts\rman_restore_from_zero.cmd

set ORACLE_HOME=C:\Users\Administrator\Downloads\WINDOWS.X64_193000_db_home
set ORACLE_SID=ROA
set PATH=%ORACLE_HOME%\bin;%PATH%

echo ============================================
echo RMAN Database Restore FROM ZERO
echo ============================================
echo.
echo Database:    ROA
echo DBID:        1363569330
echo Backups:     F:\ROA\autobackup (NFS mount from Proxmox)
echo.
echo This script will:
echo   1. CLEANUP: Delete any existing database files
echo   2. RESTORE: Restore from F:\ backups
echo   3. VERIFY: Check database is working
echo.

REM Verify F:\ mount is accessible
if not exist F:\ROA\autobackup (
    echo ERROR: F:\ROA\autobackup not accessible!
    echo.
    echo Please verify:
    echo   1. F:\ drive is mounted: dir F:\
    echo   2. NFS mount command: mount -o rw,nolock,mtype=hard,timeout=60 10.0.20.202:/mnt/pve/oracle-backups F:
    echo   3. Proxmox host is reachable: ping 10.0.20.202
    echo.
    exit /b 1
)

echo [OK] F:\ROA\autobackup is accessible
echo.

REM Create directories
if not exist D:\oracle\temp mkdir D:\oracle\temp
if not exist D:\oracle\logs mkdir D:\oracle\logs

echo ============================================
echo STEP 1: CLEANUP - Delete existing database
echo ============================================
echo.
echo Calling cleanup_database.cmd...
echo.

REM Call cleanup script (same directory)
call D:\oracle\scripts\cleanup_database.cmd
if %errorlevel% neq 0 (
    echo.
    echo ERROR: Cleanup failed!
    exit /b 1
)

echo.
echo [OK] Cleanup complete - VM is in clean state
echo.
echo Starting restore in 2 seconds...
timeout /t 2 /nobreak > nul

echo ============================================
echo STEP 2: RESTORE - Restore from F:\ backups
echo ============================================
echo.

REM Step 2.1: Create Oracle service (needed for sqlplus to connect)
echo [2.1] Creating Oracle service from PFILE...
if not exist C:\Users\oracle\admin\ROA\pfile\initROA.ora (
    echo ERROR: PFILE not found at C:\Users\oracle\admin\ROA\pfile\initROA.ora
    echo Cannot create Oracle service without PFILE!
    exit /b 1
)

oradim -new -sid ROA -startmode manual -pfile C:\Users\oracle\admin\ROA\pfile\initROA.ora
if %errorlevel% neq 0 (
    echo ERROR: Failed to create Oracle service
    exit /b 1
)
echo [OK] Oracle service created successfully
timeout /t 2 /nobreak > nul

REM Step 2.2: Startup NOMOUNT
echo [2.2] Starting database in NOMOUNT mode...
echo STARTUP NOMOUNT PFILE='C:\Users\oracle\admin\ROA\pfile\initROA.ora'; > D:\oracle\temp\nomount.sql
echo EXIT; >> D:\oracle\temp\nomount.sql
sqlplus / as sysdba @D:\oracle\temp\nomount.sql
if %errorlevel% neq 0 (
    echo ERROR: Failed to startup NOMOUNT
    exit /b 1
)
echo [OK] Database started in NOMOUNT mode
timeout /t 3 /nobreak > nul

REM Step 2.3: Create RMAN restore script
echo [2.3] Creating RMAN restore script...
set RMAN_SCRIPT=D:\oracle\temp\restore_from_zero.rman
set LOG_FILE=D:\oracle\logs\restore_from_zero.log

REM Copy ALL backups from F:\ to recovery area (RMAN works best with backups in recovery area)
if not exist C:\Users\oracle\recovery_area\ROA\autobackup mkdir C:\Users\oracle\recovery_area\ROA\autobackup
echo [INFO] Copying all backups from F:\ROA\autobackup to recovery area...
echo       This may take 1-2 minutes for ~6.7 GB of backups...
xcopy /Y /Q "F:\ROA\autobackup\*.BKP" "C:\Users\oracle\recovery_area\ROA\autobackup\" > nul
if %errorlevel% neq 0 (
    echo ERROR: Failed to copy backups from F:\
    exit /b 1
)
echo [OK] All backups copied to recovery area

echo SET DBID 1363569330; > %RMAN_SCRIPT%
echo. >> %RMAN_SCRIPT%
echo RUN { >> %RMAN_SCRIPT%
echo     ALLOCATE CHANNEL ch1 DEVICE TYPE DISK; >> %RMAN_SCRIPT%
echo     RESTORE CONTROLFILE FROM AUTOBACKUP; >> %RMAN_SCRIPT%
echo     RELEASE CHANNEL ch1; >> %RMAN_SCRIPT%
echo } >> %RMAN_SCRIPT%
echo. >> %RMAN_SCRIPT%
echo ALTER DATABASE MOUNT; >> %RMAN_SCRIPT%
echo. >> %RMAN_SCRIPT%
echo CATALOG START WITH 'F:/ROA/autobackup' NOPROMPT; >> %RMAN_SCRIPT%
echo. >> %RMAN_SCRIPT%
echo RUN { >> %RMAN_SCRIPT%
echo     ALLOCATE CHANNEL ch1 DEVICE TYPE DISK; >> %RMAN_SCRIPT%
echo     ALLOCATE CHANNEL ch2 DEVICE TYPE DISK; >> %RMAN_SCRIPT%
echo     RESTORE DATABASE; >> %RMAN_SCRIPT%
echo     RELEASE CHANNEL ch1; >> %RMAN_SCRIPT%
echo     RELEASE CHANNEL ch2; >> %RMAN_SCRIPT%
echo } >> %RMAN_SCRIPT%
echo. >> %RMAN_SCRIPT%
echo RUN { >> %RMAN_SCRIPT%
echo     ALLOCATE CHANNEL ch1 DEVICE TYPE DISK; >> %RMAN_SCRIPT%
echo     RECOVER DATABASE NOREDO; >> %RMAN_SCRIPT%
echo     RELEASE CHANNEL ch1; >> %RMAN_SCRIPT%
echo } >> %RMAN_SCRIPT%
echo. >> %RMAN_SCRIPT%
echo ALTER DATABASE OPEN RESETLOGS; >> %RMAN_SCRIPT%
echo. >> %RMAN_SCRIPT%
REM Note: TEMP tablespace is automatically restored - no need to add manually
echo EXIT; >> %RMAN_SCRIPT%

echo [OK] RMAN script created: %RMAN_SCRIPT%

REM Step 2.4: Run RMAN restore
echo [2.4] Running RMAN restore (this will take 10-20 minutes)...
echo       Log file: %LOG_FILE%
echo.
rman target / cmdfile=%RMAN_SCRIPT% log=%LOG_FILE%

if %errorlevel% neq 0 (
    echo.
    echo ERROR: RMAN restore failed!
    echo Check log: %LOG_FILE%
    exit /b 1
)

echo.
echo [OK] RMAN restore completed successfully!
echo.

echo ============================================
echo STEP 3: VERIFY - Check database status
echo ============================================
echo.
echo [3.1] Verifying database...

echo SET PAGESIZE 100 LINESIZE 200 > D:\oracle\temp\verify.sql
echo COLUMN info FORMAT A80 >> D:\oracle\temp\verify.sql
echo SELECT 'DB_NAME: ' ^|^| NAME ^|^| ', OPEN_MODE: ' ^|^| OPEN_MODE AS info FROM V$DATABASE; >> D:\oracle\temp\verify.sql
echo SELECT 'INSTANCE: ' ^|^| INSTANCE_NAME ^|^| ', STATUS: ' ^|^| STATUS AS info FROM V$INSTANCE; >> D:\oracle\temp\verify.sql
echo SELECT 'TABLESPACES: ' ^|^| COUNT(*) AS info FROM DBA_TABLESPACES; >> D:\oracle\temp\verify.sql
echo SELECT 'DATAFILES: ' ^|^| COUNT(*) AS info FROM DBA_DATA_FILES; >> D:\oracle\temp\verify.sql
echo SELECT 'TABLES: ' ^|^| COUNT(*) AS info FROM DBA_TABLES WHERE OWNER NOT IN ('SYS','SYSTEM'); >> D:\oracle\temp\verify.sql
echo EXIT; >> D:\oracle\temp\verify.sql

sqlplus -s / as sysdba @D:\oracle\temp\verify.sql

echo.
echo [3.2] Creating SPFILE for database persistence...
echo CREATE SPFILE FROM PFILE='C:\Users\oracle\admin\ROA\pfile\initROA.ora'; > D:\oracle\temp\create_spfile.sql
echo EXIT; >> D:\oracle\temp\create_spfile.sql
sqlplus / as sysdba @D:\oracle\temp\create_spfile.sql
if %errorlevel% neq 0 (
    echo WARNING: Failed to create SPFILE - database may not persist after connections close
) else (
    echo [OK] SPFILE created successfully

    REM Recreate service with auto-start and SPFILE
    echo [3.3] Recreating Oracle service with auto-start mode...
    oradim -delete -sid ROA 2>nul
    timeout /t 2 /nobreak > nul
    oradim -new -sid ROA -startmode auto -spfile
    if %errorlevel% neq 0 (
        echo WARNING: Failed to recreate service with auto-start
    ) else (
        echo [OK] Service recreated with auto-start mode
    )

    REM Register with listener
    echo ALTER SYSTEM REGISTER; > D:\oracle\temp\register.sql
    echo EXIT; >> D:\oracle\temp\register.sql
    sqlplus / as sysdba @D:\oracle\temp\register.sql
)

echo.
echo ============================================
echo Database Restore FROM ZERO Complete!
echo ============================================
echo.
echo Restore log: %LOG_FILE%
echo.
echo Database is OPEN and ready for testing!
echo.
echo Next steps:
echo   1. Test application connectivity
echo   2. Verify data integrity
echo   3. Run cleanup_database.cmd to remove database after test
echo   4. Shutdown DR VM to conserve resources
echo.