@echo off
setlocal enabledelayedexpansion

:: ==============================================================================
:: PATHS
:: ==============================================================================
set "SCRIPT_DIR=%~dp0"
set "PROJECT_ROOT=%SCRIPT_DIR%.."
set "BUILD_DIR=%PROJECT_ROOT%\build_windows\x64"
set "QT_X64_BIN=C:\Qt\6.8.3\msvc2022_64\bin"
set "QT_X64_PLUGINS=C:\Qt\6.8.3\msvc2022_64\plugins"
set "VCPKG_BIN=%PROJECT_ROOT%\vcpkg_installed\x64-windows\bin"

:: ==============================================================================
:: ENVIRONMENT SETUP (VS Discovery)
:: ==============================================================================
if defined VSINSTALLDIR (
    set "VS_INSTALL_DIR=!VSINSTALLDIR!"
) else (
    if exist "C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Auxiliary\Build\vcvarsall.bat" (
        set "VS_INSTALL_DIR=C:\Program Files\Microsoft Visual Studio\2022\Preview"
    ) else if exist "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" (
        set "VS_INSTALL_DIR=C:\Program Files\Microsoft Visual Studio\2022\Enterprise"
    ) else if exist "C:\Program Files\Microsoft Visual Studio\18\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" (
        set "VS_INSTALL_DIR=C:\Program Files\Microsoft Visual Studio\18\Enterprise"
    )
)

if "!VS_INSTALL_DIR:~-1!"=="\" set "VS_INSTALL_DIR=!VS_INSTALL_DIR:~0,-1!"
set "VCVARSALL=!VS_INSTALL_DIR!\VC\Auxiliary\Build\vcvarsall.bat"
set "VCPKG_EXE=!VS_INSTALL_DIR!\VC\vcpkg\vcpkg.exe"
set "VCPKG_CMAKE=!VS_INSTALL_DIR!\VC\vcpkg\scripts\buildsystems\vcpkg.cmake"

:: ==============================================================================
:: 0. DYNAMIC BASELINE DISCOVERY
:: ==============================================================================
echo [INFO] Probing for latest vcpkg baseline...

:: 1. Create temporary manifest with empty baseline to provoke the "suggestion" error
(
    echo {
    echo     "name": "yrcrystals",
    echo     "version-string": "1.0.0",
    echo     "dependencies": [ "fftw3" ],
    echo     "builtin-baseline": ""
    echo }
) > "%PROJECT_ROOT%\vcpkg.json"

:: 2. Run dry-run and capture output (stderr included)
"!VCPKG_EXE!" install --triplet x64-windows --dry-run > "%PROJECT_ROOT%\vcpkg_probe.log" 2>&1

:: 3. Extract the hash using PowerShell regex
::    Matches pattern: "builtin-baseline": "HEX_HASH"
set "DETECTED_HASH="
for /f "usebackq tokens=*" %%H in (`powershell -NoProfile -Command "$content = Get-Content '%PROJECT_ROOT%\vcpkg_probe.log' -Raw; if ($content -match 'builtin-baseline.: .([a-f0-9]+).') { $matches[1] }"`) do (
    set "DETECTED_HASH=%%H"
)

if "!DETECTED_HASH!"=="" (
    echo [WARNING] Could not auto-detect baseline. Defaulting to standard hash.
    set "DETECTED_HASH=b1b19307e2d2ec1eefbdb7ea069de7d4bcd31f01"
) else (
    echo [INFO] Detected Baseline: !DETECTED_HASH!
)

:: Clean up log
del "%PROJECT_ROOT%\vcpkg_probe.log" 2>nul

:: 4. Generate Final Manifest with discovered hash
echo [INFO] Writing vcpkg.json...
(
    echo {
    echo     "name": "yrcrystals",
    echo     "version-string": "1.0.0",
    echo     "builtin-baseline": "!DETECTED_HASH!",
    echo     "dependencies": [
    echo         "fftw3"
    echo     ]
    echo }
) > "%PROJECT_ROOT%\vcpkg.json"

:: ==============================================================================
:: 1. INSTALL DEPENDENCIES (Targeting x64-windows)
:: ==============================================================================
echo [INFO] Verifying dependencies for x64...
cd "%PROJECT_ROOT%"
"!VCPKG_EXE!" install --triplet x64-windows

if %errorlevel% neq 0 (
    echo [ERROR] VCPKG install failed.
    pause
    exit /b %errorlevel%
)

:: ==============================================================================
:: 2. AUTO-DETECT MAGICK
:: ==============================================================================
set "MAGICK_PATH="
where magick >nul 2>nul
if %errorlevel% equ 0 (
    for /f "delims=" %%i in ('where magick') do set "MAGICK_PATH=%%i"
    echo [INFO] Found Magick in PATH.
)
if not defined MAGICK_PATH (
    for /d %%d in ("C:\Program Files\ImageMagick*") do (
        if exist "%%d\magick.exe" set "MAGICK_PATH=%%d\magick.exe"
    )
)
if defined MAGICK_PATH (
    echo [INFO] Using ImageMagick: !MAGICK_PATH!
    set "CMAKE_MAGICK_ARG=-DMAGICK_EXECUTABLE="!MAGICK_PATH!""
) else (
    echo [WARNING] ImageMagick not found. Icons will be skipped.
    set "CMAKE_MAGICK_ARG="
)

:: ==============================================================================
:: 3. CONFIGURE & BUILD
:: ==============================================================================
echo [INFO] Setting up Environment for x64 Build...
:: CRITICAL: arm64_x64 means "Use ARM64 host to build x64 binaries"
call "!VCVARSALL!" arm64_x64

if not exist "%BUILD_DIR%" mkdir "%BUILD_DIR%"
cd "%BUILD_DIR%"

set "NEED_CONFIG=0"
if not exist "build.ninja" set "NEED_CONFIG=1"
if not exist "CMakeCache.txt" set "NEED_CONFIG=1"

if "!NEED_CONFIG!"=="1" (
    echo [INFO] Build configuration missing. Running CMake Configure...
    cmake -G "Ninja" ^
        -DCMAKE_BUILD_TYPE=Release ^
        -DCMAKE_PREFIX_PATH="%QT_X64_BIN%\..;%PROJECT_ROOT%\vcpkg_installed\x64-windows" ^
        -DCMAKE_TOOLCHAIN_FILE="!VCPKG_CMAKE!" ^
        -DVCPKG_TARGET_TRIPLET=x64-windows ^
        !CMAKE_MAGICK_ARG! ^
        "%PROJECT_ROOT%"
    
    if !errorlevel! neq 0 (
        echo [ERROR] Configuration Failed.
        pause
        exit /b !errorlevel!
    )
)

echo [INFO] Building...
cmake --build .

if %errorlevel% neq 0 (
    echo [ERROR] Build Failed.
    pause
    exit /b %errorlevel%
)

:: ==============================================================================
:: 4. THE NUKE (Clean Slate)
:: ==============================================================================
echo.
echo [CLEAN] Removing old DLLs and Plugins...
del /f /q *.dll 2>nul
if exist "platforms" rmdir /s /q "platforms"
if exist "styles" rmdir /s /q "styles"
if exist "multimedia" rmdir /s /q "multimedia"
if exist "audio" rmdir /s /q "audio"
if exist "imageformats" rmdir /s /q "imageformats"
if exist "iconengines" rmdir /s /q "iconengines"
if exist "tls" rmdir /s /q "tls"

:: ==============================================================================
:: 5. COPY DEPENDENCIES (x64 Source)
:: ==============================================================================
echo.
echo [COPY] Copying DLLs...

:: Core & Helpers
copy /Y "%QT_X64_BIN%\Qt6Core.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6Gui.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6Widgets.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6Multimedia.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6OpenGL.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6OpenGLWidgets.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6Network.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6Svg.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6ShaderTools.dll" . >nul
copy /Y "%QT_X64_BIN%\Qt6Concurrent.dll" . >nul
copy /Y "%QT_X64_BIN%\d3dcompiler_47.dll" . >nul
copy /Y "%QT_X64_BIN%\opengl32sw.dll" . >nul

:: FFmpeg
copy /Y "%QT_X64_BIN%\avcodec*.dll" . >nul
copy /Y "%QT_X64_BIN%\avformat*.dll" . >nul
copy /Y "%QT_X64_BIN%\avutil*.dll" . >nul
copy /Y "%QT_X64_BIN%\swresample*.dll" . >nul
copy /Y "%QT_X64_BIN%\swscale*.dll" . >nul

:: Plugins
if not exist "platforms" mkdir "platforms"
copy /Y "%QT_X64_PLUGINS%\platforms\qwindows.dll" "platforms\" >nul

if not exist "styles" mkdir "styles"
copy /Y "%QT_X64_PLUGINS%\styles\qwindowsvistastyle.dll" "styles\" >nul

if not exist "imageformats" mkdir "imageformats"
copy /Y "%QT_X64_PLUGINS%\imageformats\*.dll" "imageformats\" >nul

if not exist "multimedia" mkdir "multimedia"
copy /Y "%QT_X64_PLUGINS%\multimedia\*.dll" "multimedia\" >nul

if not exist "iconengines" mkdir "iconengines"
copy /Y "%QT_X64_PLUGINS%\iconengines\*.dll" "iconengines\" >nul

if not exist "tls" mkdir "tls"
copy /Y "%QT_X64_PLUGINS%\tls\*.dll" "tls\" >nul

:: FFTW3 (x64)
if exist "%VCPKG_BIN%\fftw3.dll" (
    copy /Y "%VCPKG_BIN%\fftw3.dll" . >nul
)

echo.
echo [SUCCESS] x64 Build Complete.
pause