# snapAna 一键启动脚本（PowerShell）
# 同时启动后端 (uvicorn @ 8765) 与前端 (vite @ 5173)
# 使用方式：在仓库根目录运行 .\start-dev.ps1

[CmdletBinding()]
param(
    [switch]$InstallDeps  # 传入此参数会重新安装依赖
)

$ErrorActionPreference = "Stop"
$root = Split-Path -Parent $MyInvocation.MyCommand.Definition
$backend = Join-Path $root "backend"
$frontend = Join-Path $root "frontend"

Write-Host "[snapAna] root = $root"

# 1. 后端虚拟环境
if (!(Test-Path (Join-Path $backend ".venv"))) {
    Write-Host "[snapAna] 创建 Python 虚拟环境..."
    & python -m venv (Join-Path $backend ".venv")
}
$venvPython = Join-Path $backend ".venv\Scripts\python.exe"

if ($InstallDeps -or !(Test-Path (Join-Path $backend ".venv\Lib\site-packages\fastapi"))) {
    Write-Host "[snapAna] 安装后端依赖..."
    & $venvPython -m pip install --upgrade pip
    & $venvPython -m pip install -r (Join-Path $backend "requirements.txt")
}

# 2. 前端依赖
if ($InstallDeps -or !(Test-Path (Join-Path $frontend "node_modules"))) {
    Write-Host "[snapAna] 安装前端依赖..."
    Push-Location $frontend
    npm install
    Pop-Location
}

# 3. 后台启动后端
Write-Host "[snapAna] 启动后端 http://127.0.0.1:8765 ..."
$backendProc = Start-Process -FilePath $venvPython `
    -ArgumentList "run.py" `
    -WorkingDirectory $backend `
    -PassThru `
    -WindowStyle Normal

# 4. 启动前端（占用当前控制台，便于查看日志）
Write-Host "[snapAna] 启动前端 http://127.0.0.1:5173 ..."
Push-Location $frontend
try {
    npm run dev
}
finally {
    Pop-Location
    Write-Host "[snapAna] 关闭后端 (PID $($backendProc.Id))..."
    Stop-Process -Id $backendProc.Id -Force -ErrorAction SilentlyContinue
}