[CmdletBinding()]
param(
    [string]$OutputPath = ".\dist\MrTrust.exe"
)

$ErrorActionPreference = "Stop"

function Resolve-FullPath {
    param([Parameter(Mandatory)][string]$Path)

    $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($Path)
}

$root = Split-Path -Parent (Split-Path -Parent $MyInvocation.MyCommand.Path)
$sourcePath = Join-Path $root "src\MrTrustLauncher.cs"
$resolvedOutputPath = Resolve-FullPath $OutputPath
$outputDirectory = Split-Path -Parent $resolvedOutputPath

if (-not (Test-Path -LiteralPath $sourcePath)) {
    throw "Launcher source not found: $sourcePath"
}

New-Item -ItemType Directory -Force -Path $outputDirectory | Out-Null

$compilerCandidates = @(
    "$env:WINDIR\Microsoft.NET\Framework64\v4.0.30319\csc.exe",
    "$env:WINDIR\Microsoft.NET\Framework\v4.0.30319\csc.exe"
)

$compiler = $compilerCandidates | Where-Object { Test-Path -LiteralPath $_ } | Select-Object -First 1
if (-not $compiler) {
    throw "csc.exe was not found. Run this build on a Windows Gitea runner with .NET Framework installed."
}

& $compiler `
    /nologo `
    /target:winexe `
    /optimize+ `
    /platform:anycpu `
    /out:$resolvedOutputPath `
    /reference:System.Windows.Forms.dll `
    /reference:System.Drawing.dll `
    $sourcePath

if ($LASTEXITCODE -ne 0) {
    throw "csc.exe failed with exit code $LASTEXITCODE."
}

Write-Host "Created EXE:"
Write-Host "  $resolvedOutputPath"