[CmdletBinding()]
param(
    [string]$AdbPath = (Join-Path $env:ANDROID_HOME "platform-tools\adb.exe")
)

Set-StrictMode -Version Latest
$ErrorActionPreference = "Stop"

$repositoryRoot = Split-Path -Parent $PSScriptRoot
$gradleWrapper = Join-Path $repositoryRoot "gradlew.bat"
$mainApk = Join-Path $repositoryRoot "app\build\outputs\apk\debug\app-debug.apk"
$testApk = Join-Path $repositoryRoot "app\build\outputs\apk\androidTest\debug\app-debug-androidTest.apk"
$instrumentation = "net.opcapp.flash.test/androidx.test.runner.AndroidJUnitRunner"

if (-not (Test-Path -LiteralPath $AdbPath -PathType Leaf)) {
    throw "ADB executable not found: $AdbPath"
}

& $gradleWrapper :app:assembleDebug :app:assembleDebugAndroidTest --no-daemon --console=plain
if ($LASTEXITCODE -ne 0) {
    throw "Android app or test APK build failed."
}

$deviceState = (& $AdbPath get-state 2>$null)
if ($LASTEXITCODE -ne 0 -or $deviceState.Trim() -ne "device") {
    throw "No authorized Android device is available through: $AdbPath"
}

& $AdbPath install -r $mainApk
if ($LASTEXITCODE -ne 0) {
    throw "Main APK installation failed."
}

& $AdbPath install -r $testApk
if ($LASTEXITCODE -ne 0) {
    throw "Test APK installation failed."
}

$instrumentationOutput = & $AdbPath shell am instrument -w -r $instrumentation 2>&1
$instrumentationExitCode = $LASTEXITCODE
$instrumentationOutput | Write-Output
$joinedOutput = $instrumentationOutput -join "`n"

if (
    $instrumentationExitCode -ne 0 -or
    $joinedOutput -match "FAILURES!!!" -or
    $joinedOutput -notmatch "OK \(\d+ tests?\)"
) {
    throw "Connected Android instrumentation tests failed."
}

Write-Output "Connected Android instrumentation tests passed."