param(
    [string]$PythonBin = "$PSScriptRoot\..\tools\python-bin",
    [string]$VenvDir = "$PSScriptRoot\..\tools\python-venv"
)

$ErrorActionPreference = "Stop"

$PythonBin = [System.IO.Path]::GetFullPath($PythonBin)
$VenvDir = [System.IO.Path]::GetFullPath($VenvDir)
$PythonExe = Join-Path $PythonBin "python.exe"

if (!(Test-Path $PythonExe)) {
    throw "未找到项目内 Python 二进制：$PythonExe"
}

# Windows embeddable Python 不一定带 venv 模块。优先尝试 venv；失败则使用同目录作为隔离 Python 环境安装 pip。
try {
    & $PythonExe -m venv $VenvDir
    $VenvPython = Join-Path $VenvDir "Scripts\python.exe"
    & $VenvPython -m pip install --upgrade pip setuptools wheel
    & $VenvPython -m pip install aqtinstall
    Write-Host "已创建虚拟环境：$VenvDir"
} catch {
    Write-Warning "venv 创建失败，改用项目内 embeddable Python 自身作为隔离环境。"
    & $PythonExe (Join-Path $PythonBin "get-pip.py")
    & $PythonExe -m pip install --upgrade pip setuptools wheel
    & $PythonExe -m pip install aqtinstall
    Write-Host "已在项目内 Python 二进制目录安装 pip/aqtinstall：$PythonBin"
}