param(
  [string]$EnvPath = (Join-Path $PSScriptRoot ".env"),
  [int]$Port = 8000,
  [string]$Renderer = "auto", # Options: auto, canvaskit, html
  [switch]$NoWasmDryRun
)

function Parse-Env($path) {
  $vals = @{}
  if (-not (Test-Path $path)) {
    Write-Host "No .env file found at ${path}. Falling back to defaults." -ForegroundColor Yellow
    return $vals
  }
  Get-Content $path | ForEach-Object {
    $line = $_.Trim()
    if ($line.Length -eq 0 -or $line.StartsWith('#')) { return }
    $parts = $line -split '=', 2
    if ($parts.Count -lt 2) { return }
    $key = $parts[0].Trim()
    $value = $parts[1].Trim()
    if ($value.StartsWith('"') -and $value.EndsWith('"')) {
      $value = $value.Substring(1, $value.Length - 2)
    }
    $vals[$key] = $value
  }
  return $vals
}

$values = Parse-Env $EnvPath

# Collect dart-defines we actually use on web.
$defineArgs = @()
$keysOfInterest = @('API_BASE_URL', 'FIREBASE_WEB_VAPID_KEY')
foreach ($k in $keysOfInterest) {
  if ($values.ContainsKey($k) -and -not [string]::IsNullOrWhiteSpace($values[$k])) {
    $defineArgs += "--dart-define=$k=$($values[$k])"
  }
}

# Ensure API_BASE_URL always points to the public https endpoint.
if (-not $values.ContainsKey('API_BASE_URL') -or [string]::IsNullOrWhiteSpace($values['API_BASE_URL'])) {
  $defineArgs += "--dart-define=API_BASE_URL=https://api.gosojorn.com/api/v1"
  $currentApi = 'https://api.gosojorn.com/api/v1'
} else {
  $currentApi = $values['API_BASE_URL']
  if ($currentApi.StartsWith('http://api.gosojorn.com:8080')) {
    $currentApi = $currentApi.Replace('http://api.gosojorn.com:8080', 'https://api.gosojorn.com')
    $defineArgs = $defineArgs | Where-Object { -not ($_ -like '--dart-define=API_BASE_URL=*') }
    $defineArgs += "--dart-define=API_BASE_URL=$currentApi"
  }
}

Write-Host "Launching Sojorn Web..." -ForegroundColor Cyan
Write-Host "Port: $Port"
Write-Host "Renderer: $Renderer"
Write-Host "API: $currentApi"

Push-Location (Join-Path $PSScriptRoot -ChildPath "sojorn_app")
try {
  $cmdArgs = @(
    'run',
    '-d',
    'chrome',
    '--web-hostname',
    'localhost',
    '--web-port',
    "$Port"
  )
  $cmdArgs += $defineArgs

  if ($NoWasmDryRun) {
    $cmdArgs += '--no-wasm-dry-run'
  }

  Write-Host "Running: flutter $($cmdArgs -join ' ')" -ForegroundColor DarkGray
  & flutter $cmdArgs
}
finally {
  Pop-Location
}