param(
    [string]$Version = "1.2.3",
    [int]$Port = 18080,
    [string]$JavaHome = $env:JAVA_HOME
)

$ErrorActionPreference = "Stop"
$root = Split-Path -Parent $PSScriptRoot
$buildRoot = Join-Path $root "build"
$jarPath = Join-Path $buildRoot "order-service-demo.jar"
$runtimeRoot = Join-Path $root "runtime"
$logsRoot = Join-Path $runtimeRoot "logs"
$pidFile = Join-Path $runtimeRoot "order-service.pid"
$logPath = Join-Path $logsRoot "order-service.log"

New-Item -ItemType Directory -Path $logsRoot -Force | Out-Null

if (-not (Test-Path $jarPath)) {
    & (Join-Path $PSScriptRoot "build.ps1") -JavaHome $JavaHome | Out-Null
}

if (Test-Path $pidFile) {
    try {
        $existingPid = Get-Content -LiteralPath $pidFile | Select-Object -First 1
        if ($existingPid) {
            Stop-Process -Id ([int]$existingPid) -Force -ErrorAction SilentlyContinue
        }
    } catch {}
}

$java = if ($JavaHome) { Join-Path $JavaHome "bin\\java.exe" } else { "java" }
$arguments = @(
    "-jar", $jarPath,
    "--app-name=order-service",
    "--version=$Version",
    "--port=$Port",
    "--log-path=$logPath"
)

$process = Start-Process -FilePath $java -ArgumentList $arguments -PassThru -WindowStyle Hidden
Set-Content -LiteralPath $pidFile -Value $process.Id -Encoding ASCII
Write-Output $process.Id