# AetherForge Android Agent APK — compile embedded agent + assembleDebug
param(
    [string]$ServerUrl = $(if ($env:AETHERFORGE_SERVER_URL) { $env:AETHERFORGE_SERVER_URL } else { "http://127.0.0.1:8989" }),
    [string]$WorkerName = $(if ($env:AETHERFORGE_WORKER_NAME) { $env:AETHERFORGE_WORKER_NAME } else { "android-fleet-node" }),
    [string]$FleetSecret = $env:AETHERFORGE_FLEET_SECRET,
    [string]$BuildId = "android-$(Get-Date -Format 'yyyyMMdd-HHmmss')"
)

$ErrorActionPreference = "Stop"
$Root = Split-Path -Parent $MyInvocation.MyCommand.Path
$RepoRoot = Split-Path -Parent $Root
$AgentDir = Join-Path $RepoRoot "agent"
$AppDir = Join-Path $Root "agent-app"
$AssetsDir = Join-Path $AppDir "src\main\assets"
$AgentAsset = Join-Path $AssetsDir "agent"
$ConfigAsset = Join-Path $AssetsDir "config.json"
$BuiltinPath = Join-Path $AgentDir "config\builtin.go"
$BuiltinBackup = Join-Path $AgentDir "config\builtin.go.android-bak"
$ApkOut = Join-Path $AppDir "build\outputs\apk\debug\aetherforge-agent.apk"

function Restore-Builtin {
    if (Test-Path $BuiltinBackup) {
        Move-Item -Force $BuiltinBackup $BuiltinPath
    }
}

try {
    if (-not (Get-Command go -ErrorAction SilentlyContinue)) {
        throw "go compiler not found in PATH"
    }

    Write-Host "==> Baking config (server=$ServerUrl worker=$WorkerName)" -ForegroundColor Cyan
    Push-Location (Join-Path $Root "forge")
    $bakeArgs = @(
        "run", "./cmd/bake",
        "-server", $ServerUrl,
        "-worker", $WorkerName,
        "-build-id", $BuildId,
        "-config-out", $ConfigAsset,
        "-builtin-out", $BuiltinPath
    )
    if ($FleetSecret) { $bakeArgs += @("-fleet-secret", $FleetSecret) }
    & go @bakeArgs
    if ($LASTEXITCODE -ne 0) { throw "bake failed" }
    Pop-Location

    if (Test-Path $BuiltinPath) {
        Copy-Item -Force $BuiltinPath $BuiltinBackup
    }

    Write-Host "==> Compiling linux/arm64 agent binary" -ForegroundColor Cyan
    $env:GOOS = "linux"
    $env:GOARCH = "arm64"
    $env:CGO_ENABLED = "0"
    Push-Location $AgentDir
    & go build -trimpath -ldflags "-s -w" -o $AgentAsset .
    if ($LASTEXITCODE -ne 0) { throw "go build failed" }
    Pop-Location

    $size = (Get-Item $AgentAsset).Length
    Write-Host "    agent binary: $size bytes -> $AgentAsset"

    if (-not $env:ANDROID_HOME -and $env:ANDROID_SDK_ROOT) {
        $env:ANDROID_HOME = $env:ANDROID_SDK_ROOT
    }
    if (-not $env:ANDROID_HOME) {
        throw "ANDROID_HOME (or ANDROID_SDK_ROOT) is required for Gradle assembleDebug"
    }

    $gradlew = Join-Path $AppDir "gradlew.bat"
    if (-not (Test-Path $gradlew)) {
        throw "Gradle wrapper missing. Run: cd android/agent-app && gradle wrapper"
    }

    Write-Host "==> Gradle assembleDebug" -ForegroundColor Cyan
    Push-Location $AppDir
    & $gradlew assembleDebug --no-daemon
    if ($LASTEXITCODE -ne 0) { throw "gradle assembleDebug failed" }
    Pop-Location

    if (-not (Test-Path $ApkOut)) {
        throw "APK not found at $ApkOut"
    }
    Write-Host "==> APK ready: $ApkOut" -ForegroundColor Green
}
finally {
    Restore-Builtin
}