param(
    [string]$MsysRoot = 'C:\msys64',
    [switch]$EnableCableMedia
)

$ErrorActionPreference = 'Stop'
$repo = (Get-Location).Path
$iconGenerator = Join-Path $repo 'tools\make_windows_icon.ps1'
$makeIcon = Join-Path $repo 'assets\dat-thang.ico'
$iconResourceCompiler = Join-Path $MsysRoot 'ucrt64\bin\windres.exe'
$bash = Join-Path $MsysRoot 'usr\bin\bash.exe'
$ucrtBin = Join-Path $MsysRoot 'ucrt64\bin'
if (!(Test-Path -LiteralPath $bash)) { throw "MSYS2 bash not found at $bash. Install MSYS2 with the UCRT64 environment." }
foreach ($tool in @('gcc.exe', 'mingw32-make.exe', 'pkg-config.exe', 'windres.exe')) {
    if (!(Test-Path -LiteralPath (Join-Path $ucrtBin $tool))) { throw "Required UCRT64 tool missing: $tool" }
}
if (!(Test-Path -LiteralPath $makeIcon) -or (Get-Item -LiteralPath $iconGenerator).LastWriteTimeUtc -gt (Get-Item -LiteralPath $makeIcon).LastWriteTimeUtc) {
    & powershell.exe -NoProfile -ExecutionPolicy Bypass -File $iconGenerator
    if ($LASTEXITCODE -ne 0) { throw "Windows icon generation failed with exit code $LASTEXITCODE" }
}

$repoUnix = $repo -replace '^([A-Za-z]):', '/$1' -replace '\\', '/'
$repoUnix = $repoUnix -replace '^/([A-Za-z])', '/$1'
$mediaFlag = if ($EnableCableMedia) { '1' } else { '0' }
$mediaCheck = if ($EnableCableMedia) { ' && pkg-config --exists libavformat libavcodec libavutil libswresample libswscale' } else { '' }
$command = "export PATH=/ucrt64/bin:`$PATH; cd '$repoUnix' && pkg-config --exists libsodium libcurl sdl2 SDL2_ttf$mediaCheck && mingw32-make -f Makefile.windows all ENABLE_CABLE_MEDIA=$mediaFlag"
& $bash -lc $command
if ($LASTEXITCODE -ne 0) { throw "Windows build failed with exit code $LASTEXITCODE" }

$objdump = Join-Path $ucrtBin 'objdump.exe'
$queue = [System.Collections.Generic.Queue[string]]::new()
Get-ChildItem -LiteralPath (Join-Path $repo 'build\windows') -Filter '*.exe' | ForEach-Object { $queue.Enqueue($_.FullName) }
$seen = [System.Collections.Generic.HashSet[string]]::new([System.StringComparer]::OrdinalIgnoreCase)
while ($queue.Count -gt 0) {
    $binary = $queue.Dequeue()
    $deps = & $objdump -p $binary 2>$null | Select-String 'DLL Name:'
    foreach ($depLine in $deps) {
        $dll = ($depLine.Line -replace '^.*DLL Name:\s*', '').Trim()
        if (!$dll -or $dll -match '^(api-ms-win-|ext-ms-win-)' -or !$seen.Add($dll)) { continue }
        $sourceDll = Join-Path $ucrtBin $dll
        if (Test-Path -LiteralPath $sourceDll) {
            $targetDll = Join-Path (Split-Path -Parent $binary) $dll
            Copy-Item -LiteralPath $sourceDll -Destination $targetDll -Force
            $queue.Enqueue($targetDll)
        }
    }
}

Write-Host "Windows development build: $repo\build\windows"
Write-Host "Windows portable package: $repo\dist\windows-x64"
Write-Host "Windows distributions: $repo\dist\installers"