[CmdletBinding()]
param(
    [ValidateRange(1,65535)][int]$Port = 15888,
    [string]$ListenAddress = '127.0.0.1',
    [string]$DatabasePath = ''
)
$ErrorActionPreference = 'Stop'
$serverRoot = $PSScriptRoot
$executable = Join-Path $serverRoot 'aiserver.exe'
if (-not (Test-Path -LiteralPath $executable)) { throw "Missing $executable" }
if (-not $DatabasePath) { $DatabasePath = Join-Path $serverRoot 'data/aiserver.db' }
$DatabasePath = [IO.Path]::GetFullPath($DatabasePath)
$dataDirectory = Split-Path -Parent $DatabasePath
$logs = Join-Path $serverRoot 'logs'
New-Item -ItemType Directory -Path $dataDirectory,$logs -Force | Out-Null
$log = Join-Path $logs ("aiserver-{0}.log" -f (Get-Date -Format yyyyMMdd))
Push-Location $serverRoot
try {
    "$(Get-Date -Format o) Starting AIServer on ${ListenAddress}:$Port" | Add-Content -LiteralPath $log
    & $executable --host $ListenAddress --port $Port --db $DatabasePath --daemon 2>&1 |
        Tee-Object -FilePath $log -Append
    $serverExit = $LASTEXITCODE
    if ($serverExit -eq 0) { $serverExit = 1 } # A daemon exiting should trigger task recovery.
    exit $serverExit
} finally { Pop-Location }