Welcome to TripLoom

export async function POST(request: Request) {
  const apiKey = getSerpApiKey()
  if (!apiKey) {
    return NextResponse.json(
      { ok: false, error: "SerpAPI flight search unavailable. Set SERPAPI_API_KEY in env." },
      { status: 503 }
    )
  }

  // Parse request body with slices, adults, cabin_class
  const body = await request.json()
  const slices = body.slices // [{ origin, destination, departure_date }]
  
  // Call SerpAPI
  const params = new URLSearchParams({
    engine: "google_flights",
    api_key: apiKey,
    departure_id: slices[0].origin,
    arrival_id: slices[0].destination,
    outbound_date: slices[0].departure_date,
  })
  
  const res = await fetch(`${SERPAPI_BASE}?${params.toString()}`)
  const data = await res.json()
  
  return NextResponse.json({ ok: true, offers: data?.best_flights ?? [] })
}

export type TripItineraryItem = {
  id: string
  tripId: string
  dayIndex: number
  timeBlock: ItineraryTimeBlock // "morning" | "afternoon" | "evening"
  status: ItineraryStatus // "planned" | "todo" | "finished"
  category: ItineraryCategory // "sightseeing" | "food" | "commute" | etc.
  title: string
  locationLabel: string
  startTimeLocal?: string
  endTimeLocal?: string
  notes?: string
  sortOrder: number
}

export type TripFinance = {
  budgetTotal: number
  currency: string
  groupModeEnabled: boolean
  groupSize: number
  exchangeRates: Record<string, number>
  expenses: TripExpense[]
  automation: TripFinanceAutomation
}