@echo off
REM myTool
::  A standalone command-line tool template with argument parsing.
::
::  usage: myTool [options] [1] [2]
::   [1]  =  input file path or value
::   [2]  =  output file path (optional)
::
::  options:
::   /?        Show this help message
::   -h        Show this help message
::   --help    Show this help message
::   -v        Show version information
::   --verbose Enable verbose output
::
::  examples:
::   > myTool "C:\data\input.txt"
::   > myTool "C:\data\input.txt" "C:\data\output.txt"
::   > myTool --verbose "C:\data\input.txt"
::
set "_helpLinesMyTool=19"

:: ========================================================================
:: TEMPLATE INSTRUCTIONS
:: 1. Find/Replace "myTool" with your executable name (camelCase).
:: 2. Find/Replace "MyTool" with your executable name (PascalCase).
:: 3. Update the help block above (lines 2-19) for your tool.
:: 4. Implement your logic in :_runMyTool.
:: 5. Add any new variables to :_removeBatchVariablesMyTool.
:: ========================================================================

:: Config variables.
set "_versionMyTool=1.0.0"
set "_verboseMyTool=0"

:: Define paths.
set "_scriptDirMyTool=%~dp0"
set "_scriptNameMyTool=%~n0"

:: Parse arguments into variables.
set "_parOneMyTool=%~1"
set "_checkParOneMyTool=-%_parOneMyTool%-"
set "_parTwoMyTool=%~2"
set "_checkParTwoMyTool=-%_parTwoMyTool%-"
set "_parThreeMyTool=%~3"
set "_checkParThreeMyTool=-%_parThreeMyTool%-"

:: -----------------------------------------------------------------------
:: Handle help and version flags.
:: -----------------------------------------------------------------------
if "%_parOneMyTool%"=="/?" call :_showHelpMyTool & goto _removeBatchVariablesMyTool
if /i "%_parOneMyTool%"=="-h" call :_showHelpMyTool & goto _removeBatchVariablesMyTool
if /i "%_parOneMyTool%"=="--help" call :_showHelpMyTool & goto _removeBatchVariablesMyTool
if /i "%_parOneMyTool%"=="-v" (
    echo %_scriptNameMyTool% version %_versionMyTool%
    goto _removeBatchVariablesMyTool
)

:: -----------------------------------------------------------------------
:: Handle --verbose flag (shift arguments if present).
:: -----------------------------------------------------------------------
if /i "%_parOneMyTool%"=="--verbose" (
    set "_verboseMyTool=1"
    set "_parOneMyTool=%~2"
    set "_checkParOneMyTool=-%~2-"
    set "_parTwoMyTool=%~3"
    set "_checkParTwoMyTool=-%~3-"
)

:: Create temp directory for intermediate files.
call :_makeTempDirMyTool

:: -----------------------------------------------------------------------
:: Validate required input and start execution.
:: -----------------------------------------------------------------------
if "%_checkParOneMyTool%"=="--" (
    echo ERROR: No input specified. Run "%_scriptNameMyTool% /?" for usage. 1>&2
    goto _removeBatchVariablesMyTool
)

call :_startMyTool
goto _removeBatchVariablesMyTool

:: ========================================================================
:: MAIN LOGIC
:: ========================================================================

:_startMyTool
    if "%_verboseMyTool%"=="1" (
        echo [VERBOSE] Input:  %_parOneMyTool%
        echo [VERBOSE] Output: %_parTwoMyTool%
    )

    REM Validate input file exists.
    if NOT EXIST "%_parOneMyTool%" (
        echo ERROR: Input file not found: %_parOneMyTool% 1>&2
        goto :eof
    )

    call :_runMyTool
goto :eof

:_runMyTool
    REM ===================================================================
    REM TODO: Replace this section with your tool's logic.
    REM ===================================================================
    echo Processing: %_parOneMyTool%

    if NOT "%_checkParTwoMyTool%"=="--" (
        echo Output to:  %_parTwoMyTool%
        REM Example: copy input to output.
        REM copy /Y "%_parOneMyTool%" "%_parTwoMyTool%" >nul
    )

    echo Done.
goto :eof

:: ========================================================================
:: SUPPORT FUNCTIONS
:: ========================================================================

:_showHelpMyTool
    echo:
    for /f "skip=1 delims=" %%a in ('findstr /n "^" "%~f0"') do (
        set "_line=%%a"
        setlocal EnableDelayedExpansion
        for /f "delims=:" %%n in ("!_line!") do set "_lineNum=%%n"
        if !_lineNum! GTR %_helpLinesMyTool% (
            endlocal
            goto :eof
        )
        set "_text=!_line:*:=!"
        if defined _text (
            echo !_text:~4!
        ) else (
            echo:
        )
        endlocal
    )
goto :eof

:_makeTempDirMyTool
    set "_tmpDirMyTool=%TEMP%\%~n0_%RANDOM%%RANDOM%"
    set "_tmpDirCreatedMyTool=0"
    if NOT EXIST "%_tmpDirMyTool%" (
        mkdir "%_tmpDirMyTool%" >nul 2>nul
        set "_tmpDirCreatedMyTool=1"
    )
goto :eof

:: ========================================================================
:: CLEANUP — Remove all batch variables.
:: ========================================================================
:_removeBatchVariablesMyTool
    set _helpLinesMyTool=
    set _versionMyTool=
    set _verboseMyTool=
    set _scriptDirMyTool=
    set _scriptNameMyTool=
    set _parOneMyTool=
    set _checkParOneMyTool=
    set _parTwoMyTool=
    set _checkParTwoMyTool=
    set _parThreeMyTool=
    set _checkParThreeMyTool=
    REM Append new variables above this line.

    if "%_tmpDirCreatedMyTool%"=="1" if EXIST "%_tmpDirMyTool%" rmdir /S /Q "%_tmpDirMyTool%" >nul 2>nul
    set _tmpDirMyTool=
    set _tmpDirCreatedMyTool=
    exit /b