$ErrorActionPreference = "Stop"
$Root = Split-Path -Parent $PSScriptRoot
$Venv = Join-Path $Root ".venv"
$Python = "python"

if (-not (Test-Path $Venv)) {
  & $Python -m venv $Venv
}

$VenvPython = Join-Path $Venv "Scripts\python.exe"
$WheelDir = Join-Path $Root "vendor\wheels"
$Req = Join-Path $Root "requirements.txt"

if (-not (Test-Path $WheelDir)) {
  throw "未找到离线依赖目录：$WheelDir。请先在联网环境运行 scripts\download_wheels.ps1。"
}

& $VenvPython -m pip install --no-index --find-links $WheelDir -r $Req
Write-Host "安装完成。运行 scripts\run.ps1 启动服务。"