Backup Launchbox

@echo off
setlocal enabledelayedexpansion

:: === Configuration ===
set "ZIP_PATH=C:\Program Files\7-Zip\7z.exe"
set "BACKUP_SOURCE=C:\LaunchBox"
set "BACKUP_DEST=C:\Backups"
set "LOG_DIR=C:\Backups\backup_launchbox"
set "LOG_FILE=%LOG_DIR%\backup_launchbox.log"
set "LOG_MAX_SIZE=102400"

:: === Generate Reliable Date/Time ===
for /f %%A in ('wmic os get LocalDateTime ^| find "."') do set DATETIME=%%A
set "DATESTAMP=%DATETIME:~0,8%"
set "TIMESTAMP=%DATETIME:~8,6%"
set "ARCHIVE_NAME=launchbox_backup_%DATESTAMP%.7z"

:: Format timestamp for logs
set "YYYY=%DATESTAMP:~0,4%"
set "MM=%DATESTAMP:~4,2%"
set "DD=%DATESTAMP:~6,2%"
set "HH=%TIMESTAMP:~0,2%"
set "MI=%TIMESTAMP:~2,2%"
set "SS=%TIMESTAMP:~4,2%"
set "LOG_TS=%YYYY%-%MM%-%DD% %HH%:%MI%:%SS%"

:: === Ensure Folders Exist ===
if not exist "%BACKUP_DEST%" mkdir "%BACKUP_DEST%"
if not exist "%LOG_DIR%" mkdir "%LOG_DIR%"

:: === Rotate Log if Too Big ===
if exist "%LOG_FILE%" (
    for %%A in ("%LOG_FILE%") do set LOG_SIZE=%%~zA
    if !LOG_SIZE! GEQ %LOG_MAX_SIZE% (
        ren "%LOG_FILE%" "backup_launchbox_%DATESTAMP%_%TIMESTAMP%.log"
    )
)

:: === Delete Existing Backup(s) and Log Each Deletion ===
for %%F in ("%BACKUP_DEST%\launchbox_backup_*.7z") do (
    echo [%LOG_TS%] Deleted: %%~nxF >> "%LOG_FILE%"
    del "%%F"
)

:: === Log Backup Start ===
echo [%LOG_TS%] Backup START: %ARCHIVE_NAME% >> "%LOG_FILE%"

:: === Run 7-Zip Backup ===
"%ZIP_PATH%" a -t7z "%BACKUP_DEST%\%ARCHIVE_NAME%" "%BACKUP_SOURCE%" -mx=9 >nul

:: === Generate New Timestamp for Completion Log ===
for /f %%A in ('wmic os get LocalDateTime ^| find "."') do set ENDTIME=%%A
set "END_DATESTAMP=%ENDTIME:~0,8%"
set "END_TIMESTAMP=%ENDTIME:~8,6%"
set "YYYY=%END_DATESTAMP:~0,4%"
set "MM=%END_DATESTAMP:~4,2%"
set "DD=%END_DATESTAMP:~6,2%"
set "HH=%END_TIMESTAMP:~0,2%"
set "MI=%END_TIMESTAMP:~2,2%"
set "SS=%END_TIMESTAMP:~4,2%"
set "LOG_TS_END=%YYYY%-%MM%-%DD% %HH%:%MI%:%SS%"

:: === Log Result ===
if !ERRORLEVEL! EQU 0 (
    echo [!LOG_TS_END!] Backup SUCCESS: %ARCHIVE_NAME% >> "%LOG_FILE%"
) else (
    echo [!LOG_TS_END!] Backup FAILED: %ARCHIVE_NAME% >> "%LOG_FILE%"
)

endlocal