# Local static JSON HTTP servers for AccountServer config fetch
# Run 静态服务启动.bat from repo root (admin recommended for port 80)

$root = Split-Path -Parent $PSScriptRoot
$port80Dir = Join-Path $root "local_static\port80"
$port8000Dir = Join-Path $root "local_static\port8000"
$logDir = Join-Path $root "local_static\logs"
$pidDir = Join-Path $root "local_static\pids"

New-Item -ItemType Directory -Force -Path $logDir, $pidDir, $port80Dir, $port8000Dir | Out-Null

function Get-PythonExe {
    $cmd = Get-Command python -ErrorAction SilentlyContinue
    if ($cmd) { return $cmd.Source }
    throw "python not found in PATH"
}

function Test-PortListening([int]$Port) {
    $conn = Get-NetTCPConnection -LocalPort $Port -State Listen -ErrorAction SilentlyContinue
    return $null -ne $conn
}

function Stop-StaticServer([int]$Port) {
    $pidFile = Join-Path $pidDir "http_$Port.pid"
    if (-not (Test-Path $pidFile)) { return }

    $oldPid = [int](Get-Content $pidFile -ErrorAction SilentlyContinue)
    if ($oldPid -gt 0) {
        $proc = Get-Process -Id $oldPid -ErrorAction SilentlyContinue
        if ($proc) {
            Write-Host "[stop] port $Port old pid $oldPid"
            Stop-Process -Id $oldPid -Force -ErrorAction SilentlyContinue
            Start-Sleep -Milliseconds 500
        }
    }
    Remove-Item $pidFile -Force -ErrorAction SilentlyContinue
}

function Start-StaticServer([int]$Port, [string]$Directory) {
    $python = Get-PythonExe
    $logFile = Join-Path $logDir "http_$Port.log"
    $errFile = Join-Path $logDir "http_$Port.err.log"
    $pidFile = Join-Path $pidDir "http_$Port.pid"

    if (Test-PortListening $Port) {
        if (Test-Path $pidFile) {
            $existingPid = [int](Get-Content $pidFile -ErrorAction SilentlyContinue)
            $proc = Get-Process -Id $existingPid -ErrorAction SilentlyContinue
            if ($proc) {
                Write-Host "[skip] port $Port already running (pid $existingPid)"
                return $true
            }
        }
        Write-Host "[warn] port $Port is used by another process, trying to restart managed service"
    }

    Stop-StaticServer $Port

    $argList = "-m http.server $Port --bind 127.0.0.1 --directory `"$Directory`""
    Write-Host "[start] port $Port -> $Directory"

    try {
        $proc = Start-Process -FilePath $python `
            -ArgumentList $argList `
            -WindowStyle Hidden `
            -RedirectStandardOutput $logFile `
            -RedirectStandardError $errFile `
            -PassThru
    } catch {
        Write-Host "[fail] port $Port start error: $($_.Exception.Message)"
        return $false
    }

    $proc.Id | Out-File -FilePath $pidFile -Encoding ascii -NoNewline
    Start-Sleep -Seconds 1

    if ($proc.HasExited) {
        Write-Host "[fail] port $Port exited immediately, see $logFile"
        return $false
    }

    if (-not (Test-PortListening $Port)) {
        Write-Host "[fail] port $Port not listening, see $logFile"
        return $false
    }

    Write-Host "[ok] port $Port pid $($proc.Id)"
    return $true
}

$ok80 = Start-StaticServer -Port 80 -Directory $port80Dir
$ok8000 = Start-StaticServer -Port 8000 -Directory $port8000Dir

Write-Host ""
Write-Host "verify:"
foreach ($item in @(
    @{ Url = "http://127.0.0.1/cjw_60000_stop_server.json"; Ok = $ok80 },
    @{ Url = "http://127.0.0.1:8000/serverlist.json"; Ok = $ok8000 }
)) {
    if (-not $item.Ok) {
        Write-Host "  FAIL $($item.Url)  (service not started)"
        continue
    }
    try {
        $r = Invoke-WebRequest -Uri $item.Url -UseBasicParsing -TimeoutSec 5
        Write-Host "  OK   $($item.Url)  HTTP $($r.StatusCode)"
    } catch {
        Write-Host "  FAIL $($item.Url)  $($_.Exception.Message)"
    }
}

if (-not $ok80 -or -not $ok8000) {
    Write-Host ""
    Write-Host "tips:"
    Write-Host "  - run bat as Administrator if port 80 fails"
    Write-Host "  - check logs in local_static\logs\"
    Write-Host "  - run 静态服务停止.bat then start again"
    exit 1
}