@echo off
setlocal

rem Usage:
rem   build_windows.bat C:\Qt\6.6.0\msvc2019_64 C:\opencv\build\x64\vc16\lib "Visual Studio 17 2022"
rem   build_windows.bat C:\Qt\6.6.0\mingw_64 C:\opencv-mingw\install "MinGW Makefiles"

if "%~1"=="" (
    echo Usage: %~nx0 ^<QtDir^> ^<OpenCV_DIR^> [CMakeGenerator]
    echo Example MSVC : %~nx0 C:\Qt\6.6.0\msvc2019_64 C:\opencv\build\x64\vc16\lib "Visual Studio 17 2022"
    echo Example MinGW: %~nx0 C:\Qt\6.6.0\mingw_64 C:\opencv-mingw\install "MinGW Makefiles"
    exit /b 1
)

if "%~2"=="" (
    echo Missing OpenCV_DIR.
    exit /b 1
)

set QT_DIR=%~1
set OPENCV_DIR=%~2
set GENERATOR=%~3

if "%GENERATOR%"=="" (
    set GENERATOR=Visual Studio 17 2022
)

if not exist build-windows (
    mkdir build-windows
)

if /I "%GENERATOR%"=="MinGW Makefiles" (
    cmake -S . -B build-windows -G "%GENERATOR%" -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="%QT_DIR%" -DOpenCV_DIR="%OPENCV_DIR%"
) else (
    cmake -S . -B build-windows -G "%GENERATOR%" -A x64 -DCMAKE_PREFIX_PATH="%QT_DIR%" -DOpenCV_DIR="%OPENCV_DIR%"
)

if errorlevel 1 exit /b %errorlevel%

cmake --build build-windows --config Release
if errorlevel 1 exit /b %errorlevel%

echo.
echo Build finished.
echo For MSVC, check: build-windows\Release\QtOpenCVImageTool.exe
echo For MinGW, check: build-windows\QtOpenCVImageTool.exe