import { apiError, apiJson, withApiHandler } from "@/lib/api-handler";
import { createEventForScope } from "@/modules/calendar/server/actions";
import { eventInput } from "@/modules/calendar/server/schemas";
import { listEventsForScope } from "@/modules/calendar/server/queries";

function parseCalendarIds(value: string | null): "all" | string[] {
  if (!value || value === "all") return "all";
  return value
    .split(",")
    .map((id) => id.trim())
    .filter(Boolean);
}

export async function GET(request: Request) {
  return withApiHandler(request, async (scope, req) => {
    const url = new URL(req.url);
    const from = url.searchParams.get("from");
    const to = url.searchParams.get("to");
    const calendarIds = parseCalendarIds(url.searchParams.get("calendarIds"));

    if (!from || !to) {
      return apiError("from and to query parameters are required", 400);
    }

    const events = await listEventsForScope(scope, { from, to, calendarIds });
    return apiJson(events);
  });
}

export async function POST(request: Request) {
  return withApiHandler(request, async (scope, req) => {
    const body: unknown = await req.json();
    const parsed = eventInput.parse(body);
    const event = await createEventForScope(scope, parsed);
    return apiJson(event, 201);
  });
}