param([int]$FrontendPort=3220,[int]$BackendPort=8020)
$ErrorActionPreference='Stop'
$projectRoot=Split-Path $PSScriptRoot -Parent
$python=Join-Path $projectRoot 'backend/venv/Scripts/python.exe'
$next=Join-Path $projectRoot 'node_modules/next/dist/bin/next'
if(!(Test-Path -LiteralPath $python) -or !(Test-Path -LiteralPath $next)){throw '请先安装项目依赖，必须使用backend/venv。'}
if(!(Test-Path -LiteralPath (Join-Path $projectRoot '.next/BUILD_ID'))){throw '请先在项目根目录执行npm run build。'}
foreach($port in @($FrontendPort,$BackendPort)){
    if(Get-NetTCPConnection -State Listen -LocalPort $port -ErrorAction SilentlyContinue){throw "端口$port已占用；本脚本不会停止现有服务。"}
}
$evidence=Join-Path $projectRoot 'test-evidence'
New-Item -ItemType Directory -Path $evidence -Force | Out-Null
$stamp=Get-Date -Format 'yyyyMMdd-HHmmss'
$env:NO_PROXY='*';$env:HTTP_PROXY='';$env:HTTPS_PROXY='';$env:ALL_PROXY=''
$env:RISK_AGENT_BACKEND_URL="http://127.0.0.1:$BackendPort"
$env:XINGBANG_DEMO_ROLE_LOGIN='1'
$backend=Start-Process -FilePath $python -ArgumentList '-m','uvicorn','app:app','--host','127.0.0.1','--port',"$BackendPort" -WorkingDirectory (Join-Path $projectRoot 'backend') -WindowStyle Hidden -RedirectStandardOutput (Join-Path $evidence "$stamp-backend.out.log") -RedirectStandardError (Join-Path $evidence "$stamp-backend.err.log") -PassThru
$frontend=Start-Process -FilePath (Get-Command node).Source -ArgumentList $next,'start','--hostname','127.0.0.1','--port',"$FrontendPort" -WorkingDirectory $projectRoot -WindowStyle Hidden -RedirectStandardOutput (Join-Path $evidence "$stamp-frontend.out.log") -RedirectStandardError (Join-Path $evidence "$stamp-frontend.err.log") -PassThru
@{backend_launcher_pid=$backend.Id;frontend_pid=$frontend.Id;frontend_port=$FrontendPort;backend_port=$BackendPort;created_at=$stamp} | ConvertTo-Json | Set-Content -LiteralPath (Join-Path $evidence "$stamp-preview-processes.json")
Write-Output "新版入口：http://127.0.0.1:$FrontendPort/experience-center"
Write-Output '日志与本任务进程信息已保存到test-evidence；旧版服务没有停止。'