param(
    [string]$Runtime = '',
    [ValidateSet('before','after','full')][string]$Phase = 'before'
)
$ErrorActionPreference = 'Stop'
$repo = (Resolve-Path (Join-Path $PSScriptRoot '..')).Path
$source = Join-Path $repo 'V2rayNG'
$tempRoot = [IO.Path]::GetFullPath([IO.Path]::GetTempPath())
if (-not $Runtime) { $Runtime = Join-Path $tempRoot ('ucvl-auth-20260917-' + [guid]::NewGuid().ToString('N')) }
$Runtime = [IO.Path]::GetFullPath($Runtime)
if (-not $Runtime.StartsWith($tempRoot, [StringComparison]::OrdinalIgnoreCase) -or (Split-Path $Runtime -Leaf) -notmatch '^ucvl-auth-20260917-[a-f0-9]{32}$') {
    throw 'Only a dedicated temporary ASCII build directory is allowed'
}
New-Item -ItemType Directory -Path $Runtime -Force | Out-Null
foreach ($name in @('gradlew','gradlew.bat','gradle.properties','settings.gradle.kts','build.gradle.kts')) {
    Copy-Item -LiteralPath (Join-Path $source $name) -Destination $Runtime -Force
}
Copy-Item -LiteralPath (Join-Path $source 'gradle') -Destination $Runtime -Recurse -Force
$appTarget = Join-Path $Runtime 'app'
New-Item -ItemType Directory -Path $appTarget -Force | Out-Null
foreach ($name in @('src','libs','build.gradle.kts','proguard-rules.pro')) {
    Copy-Item -LiteralPath (Join-Path $source ('app/' + $name)) -Destination $appTarget -Recurse -Force
}
$env:JAVA_HOME = Join-Path $repo '.tools/jdk-staging/jdk-21.0.12.1+1'
$env:ANDROID_HOME = Join-Path $repo '.tools/android-sdk'
if (-not (Test-Path (Join-Path $env:JAVA_HOME 'bin/java.exe'))) { throw 'Expected JDK 21 is missing' }
$log = Join-Path $repo ('acceptance/android-auth-' + $Phase + '-20260917.log')
$started = Get-Date
Push-Location $Runtime
try {
    $gradleArgs = @('--offline','--no-daemon','--max-workers=2',':app:testPlaystoreReleaseUnitTest')
    if ($Phase -ne 'full') { $gradleArgs += @('--tests','com.v2ray.ang.ucvl.UcvlAuthorizationGuardTest') }
    & .\gradlew.bat @gradleArgs *> $log
    $testExit = $LASTEXITCODE
} finally { Pop-Location }
$suites = @()
$resultDir = Join-Path $Runtime 'app/build/test-results/testPlaystoreReleaseUnitTest'
if (Test-Path $resultDir) {
    foreach ($file in Get-ChildItem $resultDir -Filter 'TEST-*.xml' -File) {
        if ($file.LastWriteTime -lt $started) { continue }
        [xml]$xml = Get-Content -LiteralPath $file.FullName -Raw
        $suites += [ordered]@{name=$xml.testsuite.name; tests=[int]$xml.testsuite.tests; failures=[int]$xml.testsuite.failures; errors=[int]$xml.testsuite.errors; skipped=[int]$xml.testsuite.skipped}
    }
}
$report = [ordered]@{phase=$Phase; started_at=$started.ToString('o'); runtime=$Runtime; offline=$true; exit_code=$testExit; suites=$suites; source_copied=$true; emulator_started=$false; device_installed=$false; apk_published=$false; network_modified=$false}
$report | ConvertTo-Json -Depth 5 | Set-Content -Encoding utf8 (Join-Path $repo ('acceptance/android-auth-' + $Phase + '-20260917.json'))
$report | ConvertTo-Json -Depth 5
exit $testExit