param(
    [string]$ServiceName = "MailPolicySyncWorker",
    [string]$PhpPath = "php",
    [string]$ProjectRoot = "D:\laragon\www\MailPolicy",
    [string]$QueueConnection = "database",
    [string]$QueueName = "exchange-sync",
    [string]$ServiceUser = "",
    [string]$ServicePassword = "",
    [switch]$StartService
)

function Resolve-NssmPath {
    param([string]$Root)

    $candidates = @(
        (Join-Path $Root "scripts\windows\tools\nssm\win64\nssm.exe"),
        (Join-Path $Root "scripts\windows\tools\nssm\nssm.exe"),
        (Join-Path $Root "tools\nssm\win64\nssm.exe"),
        (Join-Path $Root "tools\nssm\nssm.exe")
    )

    foreach ($candidate in $candidates) {
        if (Test-Path $candidate) {
            return $candidate
        }
    }

    $command = Get-Command nssm.exe -ErrorAction SilentlyContinue
    if ($command) {
        return $command.Source
    }

    throw "nssm.exe was not found. Put it under scripts\windows\tools\nssm\win64\nssm.exe or add it to PATH."
}

$nssm = Resolve-NssmPath -Root $ProjectRoot
$artisan = Join-Path $ProjectRoot "artisan"
$arguments = "queue:work $QueueConnection --queue=$QueueName --sleep=3 --tries=1 --timeout=900 --no-interaction"
$stdoutLog = Join-Path $ProjectRoot "storage\logs\nssm-sync-worker.log"
$stderrLog = Join-Path $ProjectRoot "storage\logs\nssm-sync-worker-error.log"

if (!(Test-Path $ProjectRoot)) {
    throw "Project root not found: $ProjectRoot"
}

if (!(Test-Path $artisan)) {
    throw "Laravel artisan file not found: $artisan"
}

$logDirectory = Split-Path $stdoutLog -Parent
if (!(Test-Path $logDirectory)) {
    New-Item -ItemType Directory -Path $logDirectory -Force | Out-Null
}

$existingService = Get-Service -Name $ServiceName -ErrorAction SilentlyContinue

if (-not $existingService) {
    & $nssm install $ServiceName $PhpPath $artisan $arguments
}

& $nssm set $ServiceName Application $PhpPath
& $nssm set $ServiceName AppParameters "$artisan $arguments"
& $nssm set $ServiceName AppDirectory $ProjectRoot
& $nssm set $ServiceName AppStdout $stdoutLog
& $nssm set $ServiceName AppStderr $stderrLog
& $nssm set $ServiceName AppRotateFiles 1
& $nssm set $ServiceName AppRotateOnline 1
& $nssm set $ServiceName Start SERVICE_AUTO_START
& $nssm set $ServiceName AppStopMethodSkip 6

if ($ServiceUser -ne "") {
    if ($ServicePassword -eq "") {
        throw "ServicePassword is required when ServiceUser is provided."
    }

    & $nssm set $ServiceName ObjectName $ServiceUser $ServicePassword
}

Write-Host "NSSM service '$ServiceName' configured."
Write-Host "NSSM path: $nssm"
Write-Host "Application: $PhpPath"
Write-Host "Arguments: $artisan $arguments"
Write-Host "Stdout log: $stdoutLog"
Write-Host "Stderr log: $stderrLog"

if ($ServiceUser -ne "") {
    Write-Host "Service account: $ServiceUser"
}

if ($StartService) {
    & $nssm start $ServiceName
    Write-Host "NSSM service '$ServiceName' started."
}