$ErrorActionPreference = "Stop"

Write-Host "[1/6] 设置项目 Python 3.12.10"
pyenv local 3.12.10

Write-Host "[2/6] 通过 pyenv 获取项目 Python"
$Python312 = (pyenv which python | Select-Object -First 1).Trim()

if (-not $Python312) {
    throw "pyenv which python 未返回 Python 路径"
}
if (-not (Test-Path $Python312)) {
    throw "pyenv 返回的 Python 不存在: $Python312"
}

$Version = (& $Python312 --version 2>&1).Trim()
Write-Host "Python executable: $Python312"
Write-Host "Python version:    $Version"

if ($Version -ne "Python 3.12.10") {
    throw "项目要求 Python 3.12.10，但 pyenv 当前返回: $Version"
}

Write-Host "[3/6] 检查/创建虚拟环境"
if (Test-Path ".venv\Scripts\python.exe") {
    $ExistingVersion = (& ".\.venv\Scripts\python.exe" --version 2>&1).Trim()
    if ($ExistingVersion -ne "Python 3.12.10") {
        Write-Host "发现错误虚拟环境 ($ExistingVersion)，正在删除..."
        Remove-Item -Recurse -Force ".venv"
    }
}

if (-not (Test-Path ".venv\Scripts\python.exe")) {
    & $Python312 -m venv .venv
}

$VenvPython = (Resolve-Path ".\.venv\Scripts\python.exe").Path
$VenvVersion = (& $VenvPython --version 2>&1).Trim()
Write-Host "Venv Python: $VenvVersion"

if ($VenvVersion -ne "Python 3.12.10") {
    throw "虚拟环境 Python 版本错误: $VenvVersion"
}

Write-Host "[4/6] 升级 pip"
& $VenvPython -m pip install --upgrade pip

Write-Host "[5/6] 安装项目"
& $VenvPython -m pip install -e .

$Cm93Db = (Resolve-Path ".\.venv\Scripts\cm93db.exe").Path

Write-Host "[6/6] 基础命令检查"
& $Cm93Db --help

Write-Host ""
Write-Host "Python 3.12.10 虚拟环境已建立。"
Write-Host "下一步："
Write-Host "  1. Copy-Item .env.example .env"
Write-Host "  2. 修改 .env 中的 MySQL 5.7.34 参数"
Write-Host "  3. .\scripts\init_db.ps1"