# 启动 PHP-CGI（FastCGI for nginx）
# 监听 127.0.0.1:9001-9004，4 个并发子进程
# 由 nginx upstream 负载均衡
# 用法：以管理员身份运行 powershell -ExecutionPolicy Bypass -File start-php.ps1

# 提权
if (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
    Start-Process powershell.exe "-ExecutionPolicy Bypass -File `"$PSCommandPath`"" -Verb RunAs
    exit
}

# 路径
$PhpDir = "D:\php"
$PhpCgi = Join-Path $PhpDir "php-cgi.exe"
$PhpIni = Join-Path $PhpDir "php.ini"
$LogDir = "D:\SMANAGE\logs"
if (!(Test-Path $LogDir)) { New-Item -ItemType Directory -Path $LogDir -Force | Out-Null }
$LogOut = Join-Path $LogDir "php-cgi.out.log"
$LogErr = Join-Path $LogDir "php-cgi.err.log"

# 配置
$StartPort   = 9001
$NumWorkers  = 4
$MaxRequests = 1000

# 杀掉残留 php-cgi
Get-Process -Name "php-cgi" -ErrorAction SilentlyContinue | Stop-Process -Force
Start-Sleep -Milliseconds 500

# 启动 N 个 worker（stdout/stderr 分开到不同文件）
for ($i = 0; $i -lt $NumWorkers; $i++) {
    $port = $StartPort + $i
    $env:PHP_FCGI_MAX_REQUESTS = $MaxRequests
    $argList = "-b 127.0.0.1:$port -c `"$PhpIni`""
    $p = Start-Process -FilePath $PhpCgi -ArgumentList $argList -WindowStyle Hidden -PassThru -RedirectStandardOutput $LogOut -RedirectStandardError $LogErr
    Write-Host "[php-cgi] worker $i on 127.0.0.1:$port  pid=$($p.Id)" -ForegroundColor Green
}

Start-Sleep -Seconds 1
$alive = @(Get-Process -Name "php-cgi" -ErrorAction SilentlyContinue)
Write-Host "[php-cgi] $($alive.Count) of $NumWorkers workers alive" -ForegroundColor Cyan

# 写 upstream 配置文件给 nginx include
$upstreamFile = "D:\SMANAGE\php\php-upstream.conf"
$portList = ($StartPort..($StartPort + $NumWorkers - 1)) | ForEach-Object { "    server 127.0.0.1:$_;" }
$upstreamContent = @"
# Auto-generated by start-php.ps1 — DO NOT EDIT
# Nextcloud FastCGI upstream pool
upstream php_fcgi_nextcloud {
$($portList -join "`n")
}
"@
$upstreamContent | Out-File -FilePath $upstreamFile -Encoding UTF8 -Force
Write-Host "[php-cgi] upstream config -> $upstreamFile" -ForegroundColor Green