$MobileDir = "D:\07-Logiciels\20-FIN65\fin65_mobile"
$Manifest = Join-Path $MobileDir "android\app\src\main\AndroidManifest.xml"
$AndroidDir = Join-Path $MobileDir "android\app\src\main"
$KotlinRoot = Join-Path $AndroidDir "kotlin"
$JavaRoot = Join-Path $AndroidDir "java"

Write-Host ""
Write-Host "=========================================="
Write-Host "  FIN65 - Patch Android biometrie"
Write-Host "=========================================="
Write-Host ""

if (!(Test-Path $MobileDir)) {
    Write-Host "[ERREUR] Dossier mobile introuvable : $MobileDir" -ForegroundColor Red
    Read-Host "Appuie sur Entree pour fermer"
    exit 1
}

if (!(Test-Path $Manifest)) {
    Write-Host "[ERREUR] AndroidManifest.xml introuvable : $Manifest" -ForegroundColor Red
    Read-Host "Appuie sur Entree pour fermer"
    exit 1
}

$Stamp = Get-Date -Format "yyyyMMdd_HHmmss"
Copy-Item $Manifest "$Manifest.before_biometric_$Stamp.bak" -Force

[xml]$xml = Get-Content $Manifest
$manifestNode = $xml.manifest
$androidNs = "http://schemas.android.com/apk/res/android"

function Ensure-Permission($name) {
    $existing = $manifestNode.'uses-permission' | Where-Object {
        $_.GetAttribute("name", $androidNs) -eq $name
    }
    if ($null -eq $existing) {
        $perm = $xml.CreateElement("uses-permission")
        $attr = $xml.CreateAttribute("android", "name", $androidNs)
        $attr.Value = $name
        [void]$perm.Attributes.Append($attr)
        [void]$manifestNode.InsertBefore($perm, $manifestNode.FirstChild)
        Write-Host "Permission ajoutee : $name"
    } else {
        Write-Host "Permission deja presente : $name"
    }
}

Ensure-Permission "android.permission.INTERNET"
Ensure-Permission "android.permission.USE_BIOMETRIC"

$app = $manifestNode.application
if ($app -ne $null) {
    $app.SetAttribute("label", $androidNs, "FIN65")
    $app.SetAttribute("icon", $androidNs, "@mipmap/ic_launcher")
    $app.SetAttribute("roundIcon", $androidNs, "@mipmap/ic_launcher_round")
    $app.SetAttribute("usesCleartextTraffic", $androidNs, "true")
}

$xml.Save($Manifest)
Write-Host "AndroidManifest.xml mis a jour."

# MainActivity: local_auth Android demande FlutterFragmentActivity.
$mainFiles = @()
if (Test-Path $KotlinRoot) {
    $mainFiles += Get-ChildItem $KotlinRoot -Recurse -Filter MainActivity.kt -ErrorAction SilentlyContinue
}
if (Test-Path $JavaRoot) {
    $mainFiles += Get-ChildItem $JavaRoot -Recurse -Filter MainActivity.java -ErrorAction SilentlyContinue
}

if ($mainFiles.Count -eq 0) {
    Write-Host "[ATTENTION] MainActivity introuvable. Aucun patch FragmentActivity applique." -ForegroundColor Yellow
} else {
    foreach ($file in $mainFiles) {
        Copy-Item $file.FullName "$($file.FullName).before_biometric_$Stamp.bak" -Force
        $text = Get-Content $file.FullName -Raw

        if ($file.Extension -eq ".kt") {
            $text = $text -replace "import io\.flutter\.embedding\.android\.FlutterActivity", "import io.flutter.embedding.android.FlutterFragmentActivity"
            if ($text -notmatch "FlutterFragmentActivity") {
                $text = $text -replace "package ([^\r\n]+)", "package `$1`n`nimport io.flutter.embedding.android.FlutterFragmentActivity"
            }
            $text = $text -replace ":\s*FlutterActivity\(\)", ": FlutterFragmentActivity()"
            $text = $text -replace "extends\s+FlutterActivity", "extends FlutterFragmentActivity"
            Set-Content $file.FullName $text -Encoding UTF8
            Write-Host "MainActivity.kt mis a jour : $($file.FullName)"
        }

        if ($file.Extension -eq ".java") {
            $text = $text -replace "import io\.flutter\.embedding\.android\.FlutterActivity;", "import io.flutter.embedding.android.FlutterFragmentActivity;"
            if ($text -notmatch "FlutterFragmentActivity") {
                $text = $text -replace "(package [^;]+;)", "`$1`n`nimport io.flutter.embedding.android.FlutterFragmentActivity;"
            }
            $text = $text -replace "extends\s+FlutterActivity", "extends FlutterFragmentActivity"
            Set-Content $file.FullName $text -Encoding UTF8
            Write-Host "MainActivity.java mis a jour : $($file.FullName)"
        }
    }
}

# Tente de relever minSdk a 24 si un fichier Gradle classique existe.
$gradleFiles = @(
    (Join-Path $MobileDir "android\app\build.gradle"),
    (Join-Path $MobileDir "android\app\build.gradle.kts")
)

foreach ($g in $gradleFiles) {
    if (Test-Path $g) {
        Copy-Item $g "$g.before_biometric_$Stamp.bak" -Force
        $text = Get-Content $g -Raw
        $text = $text -replace "minSdkVersion\s+flutter\.minSdkVersion", "minSdkVersion 24"
        $text = $text -replace "minSdk\s*=\s*flutter\.minSdkVersion", "minSdk = 24"
        $text = $text -replace "minSdkVersion\s+\d+", "minSdkVersion 24"
        $text = $text -replace "minSdk\s*=\s*\d+", "minSdk = 24"
        Set-Content $g $text -Encoding UTF8
        Write-Host "Gradle minSdk verifie : $g"
    }
}

Set-Location $MobileDir
flutter clean
flutter pub get

Write-Host ""
Write-Host "Patch Android biometrie termine."
Write-Host "Relance maintenant : flutter run"
Write-Host ""
Read-Host "Appuie sur Entree pour fermer"