# Start FastAPI with hot reload (requires Python 3.11+).
# Usage: .\scripts\start-local-backend.ps1
Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'
$env:ENV_FILE_PATH = 'C:\Users\dream\.secrets\shared.env'
$root = Split-Path -Parent $PSScriptRoot
$backend = Join-Path $root 'backend'
Set-Location $backend

$pythonExe = $null
if (Get-Command py -ErrorAction SilentlyContinue) {
  try {
    $pythonExe = (& py -3 -c "import sys; print(sys.executable)").Trim()
  } catch { }
}
if (-not $pythonExe -and (Get-Command python -ErrorAction SilentlyContinue)) {
  $pythonExe = (Get-Command python).Source
}
if (-not $pythonExe) {
  Write-Error 'Python not found. Install from https://www.python.org/downloads/ or: winget install Python.Python.3.12'
}

Write-Host "Using Python: $pythonExe"
$venvPy = Join-Path $backend '.venv\Scripts\python.exe'
if (-not (Test-Path $venvPy)) {
  Write-Host 'Creating .venv ...'
  & $pythonExe -m venv .venv
}
& (Join-Path $backend '.venv\Scripts\pip.exe') install -q -r requirements.txt
Write-Host 'Starting uvicorn on http://127.0.0.1:8000 (API docs: /docs) ...'
& (Join-Path $backend '.venv\Scripts\uvicorn.exe') app.main:app --reload --host 0.0.0.0 --port 8000