param(
    [string]$OriginUrl = "http://127.0.0.1:8080",
    [string]$NodeId = "",
    [string]$Region = "default",
    [int]$HlsPort = 8889,
    [int]$ApiPort = 9997,
    [int]$Weight = 100,
    [string]$DataDir = "",
    [string]$ExePath = "",
    [switch]$Build,
    [switch]$NoWait
)

$ErrorActionPreference = "Stop"

$Base = Split-Path -Parent $MyInvocation.MyCommand.Path
if (-not $NodeId) { $NodeId = $env:COMPUTERNAME }
if (-not $NodeId) { $NodeId = "windows-edge" }
if (-not $DataDir) { $DataDir = Join-Path $env:ProgramData ("StreamCore\edge\" + $NodeId) }
$LogDir = Join-Path $DataDir "logs"

New-Item -ItemType Directory -Force -Path $DataDir, $LogDir | Out-Null

function Assert-Command($Name, $Hint) {
    if (-not (Get-Command $Name -ErrorAction SilentlyContinue)) {
        throw "$Name not found. $Hint"
    }
}

if ($Build) {
    Assert-Command "go" "Install Go 1.19+ and make go.exe available in PATH."
    Write-Host "[StreamCore Edge] Building Windows edge agent..."
    & (Join-Path $Base "build.ps1")
}

$exeCandidates = @()
if ($ExePath) { $exeCandidates += $ExePath }
$exeCandidates += (Join-Path $Base "dist\streamcore-edge-windows-amd64.exe")
$exeCandidates += (Join-Path $Base "streamcore-edge.exe")

$ResolvedExe = $null
foreach ($candidate in $exeCandidates) {
    if ($candidate -and (Test-Path $candidate)) {
        $ResolvedExe = (Resolve-Path $candidate).Path
        break
    }
}

if (-not $ResolvedExe) {
    throw "Windows edge agent executable not found. Run: powershell -ExecutionPolicy Bypass -File .\edge-agent\start-edge.ps1 -Build"
}

$env:STREAMCORE_ORIGIN_URL = $OriginUrl
$env:STREAMCORE_NODE_ID = $NodeId
$env:STREAMCORE_REGION = $Region
$env:STREAMCORE_HLS_PORT = "$HlsPort"
$env:STREAMCORE_API_PORT = "$ApiPort"
$env:STREAMCORE_WEIGHT = "$Weight"
$env:STREAMCORE_DATA_DIR = $DataDir

Write-Host "[StreamCore Edge] Starting Windows edge node..."
Write-Host "  Node ID:  $NodeId"
Write-Host "  Region:   $Region"
Write-Host "  Origin:   $OriginUrl"
Write-Host "  HLS:      http://127.0.0.1:$HlsPort/"
Write-Host "  API:      http://127.0.0.1:$ApiPort/"
Write-Host "  Data dir: $DataDir"
Write-Host "  Logs:     $LogDir"

$process = Start-Process -FilePath $ResolvedExe -WorkingDirectory $Base -PassThru -RedirectStandardOutput (Join-Path $LogDir "edge-agent.out.log") -RedirectStandardError (Join-Path $LogDir "edge-agent.err.log")

Write-Host "[StreamCore Edge] Process started with PID $($process.Id)."
if ($NoWait) { return }

Write-Host "Press Ctrl+C to stop the edge node."
try {
    while (-not $process.HasExited) { Start-Sleep -Seconds 2 }
    exit $process.ExitCode
} finally {
    if (-not $process.HasExited) {
        Write-Host "[StreamCore Edge] Stopping edge node..."
        Stop-Process -Id $process.Id -Force -ErrorAction SilentlyContinue
    }
}