param (
    [switch]$SkipTests = $false
)

$ErrorActionPreference = "Stop"

# Repository-Wurzelverzeichnis ermitteln
$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$ProjectRoot = Split-Path -Parent $ScriptDir
Set-Location $ProjectRoot

# Toolchain-Pfade sicherstellen (WinLibs GCC + Cargo)
$env:PATH = "C:\Users\pansih\AppData\Local\Microsoft\WinGet\Packages\BrechtSanders.WinLibs.POSIX.UCRT_Microsoft.Winget.Source_8wekyb3d8bbwe\mingw64\bin;C:\Users\pansih\.cargo\bin;C:\Program Files\Git\cmd;C:\Users\pansih\AppData\Local\Microsoft\WinGet\Links;" + $env:PATH

# Version aus Cargo.toml auslesen
$CargoToml = Get-Content (Join-Path $ProjectRoot "Cargo.toml") -Raw
if ($CargoToml -match 'version\s*=\s*"([^"]+)"') {
    $Version = $matches[1]
} else {
    Write-Error "Konnte Versionsnummer nicht aus Cargo.toml ermitteln."
    exit 1
}

Write-Host "============================================================" -ForegroundColor Cyan
Write-Host " Sanctum Release Packaging v$Version (Windows x86_64)" -ForegroundColor Cyan
Write-Host "============================================================" -ForegroundColor Cyan

# 1. Tests ausfuehren
if (-not $SkipTests) {
    Write-Host "`n[1/4] Fuehre Testsuite aus (cargo test --all)..." -ForegroundColor Yellow
    cargo test --all
    if ($LASTEXITCODE -ne 0) {
        Write-Error "Tests fehlgeschlagen! Release-Erstellung abgebrochen."
        exit $LASTEXITCODE
    }
    Write-Host "[OK] Alle Tests erfolgreich bestanden." -ForegroundColor Green
} else {
    Write-Host "`n[1/4] Tests uebersprungen (-SkipTests)." -ForegroundColor DarkYellow
}

# 2. Release-Binary bauen
Write-Host "`n[2/4] Kompiliere Release-Binary mit LTO (cargo build --release)..." -ForegroundColor Yellow
cargo build --release
if ($LASTEXITCODE -ne 0) {
    Write-Error "Release-Build fehlgeschlagen!"
    exit $LASTEXITCODE
}
Write-Host "[OK] Release-Binary erfolgreich gebaut." -ForegroundColor Green

# 3. Release-Verzeichnisstruktur vorbereiten
Write-Host "`n[3/4] Erstelle Distributionspaket..." -ForegroundColor Yellow

$DistDir = Join-Path $ProjectRoot "dist"
$PackageName = "sanctum-v$Version-windows-x86_64"
$StagingDir = Join-Path $DistDir $PackageName
$ZipFile = Join-Path $DistDir "$PackageName.zip"

if (Test-Path $DistDir) {
    Remove-Item $DistDir -Recurse -Force
}
New-Item -ItemType Directory -Path $StagingDir -Force | Out-Null

$ExeSource = Join-Path $ProjectRoot "target\release\sanctum.exe"
Copy-Item $ExeSource (Join-Path $StagingDir "sanctum.exe")
Copy-Item (Join-Path $ProjectRoot "README.md") (Join-Path $StagingDir "README.md")
Copy-Item (Join-Path $ProjectRoot "QUICKSTART.md") (Join-Path $StagingDir "QUICKSTART.md")
Copy-Item (Join-Path $ProjectRoot "INSTALL.md") (Join-Path $StagingDir "INSTALL.md")
Copy-Item (Join-Path $ProjectRoot "LICENSE") (Join-Path $StagingDir "LICENSE")
Copy-Item (Join-Path $ProjectRoot "LEGAL.md") (Join-Path $StagingDir "LEGAL.md")
Copy-Item (Join-Path $ProjectRoot "THIRD_PARTY_LICENSES.md") (Join-Path $StagingDir "THIRD_PARTY_LICENSES.md")
Copy-Item (Join-Path $ProjectRoot "CHANGELOG.md") (Join-Path $StagingDir "CHANGELOG.md")
Copy-Item (Join-Path $ProjectRoot "assets") (Join-Path $StagingDir "assets") -Recurse

# ZIP-Archiv schnueren
Compress-Archive -Path "$StagingDir\*" -DestinationPath $ZipFile -Force
Remove-Item $StagingDir -Recurse -Force

Write-Host "[OK] Archiv erstellt: $ZipFile" -ForegroundColor Green

# 4. SHA-256 Pruefsummen generieren
Write-Host "`n[4/4] Generiere SHA-256 Pruefsummen..." -ForegroundColor Yellow

$ZipHash = (Get-FileHash -Path $ZipFile -Algorithm SHA256).Hash.ToLower()
$ExeHash = (Get-FileHash -Path $ExeSource -Algorithm SHA256).Hash.ToLower()

$ChecksumFile = Join-Path $DistDir "SHA256SUMS.txt"
@("$ZipHash  $PackageName.zip", "$ExeHash  sanctum.exe") | Set-Content -Path $ChecksumFile -Encoding utf8

Write-Host "[OK] Pruefsummen in SHA256SUMS.txt gespeichert." -ForegroundColor Green

# Abschluss-Zusammenfassung
$ZipSize = (Get-Item $ZipFile).Length / 1MB
Write-Host "`n============================================================" -ForegroundColor Green
Write-Host " Sanctum Release v$Version erfolgreich gepackt!" -ForegroundColor Green
Write-Host "============================================================" -ForegroundColor Green
Write-Host "  Archiv:        dist\$PackageName.zip ($([math]::Round($ZipSize, 2)) MB)"
Write-Host "  ZIP SHA-256:   $ZipHash"
Write-Host "  EXE SHA-256:   $ExeHash"
Write-Host "  Checksum-File: dist\SHA256SUMS.txt"
Write-Host "`nBereit fuer Gitea Release / Verteilung.`n"