import {google} from 'googleapis';
import { Booking } from '../db/booking';

const keyFile = process.env.GOOGLE_SERVICE_ACCOUNT_KEY_FILE;
const calendarId = process.env.GOOGLE_CALENDAR_ID;

const auth = new google.auth.GoogleAuth({
  keyFile,
  scopes: [
    'https://www.googleapis.com/auth/calendar',
    'https://www.googleapis.com/auth/calendar.readonly'
  ],
});

const calendar = google.calendar({
  version: 'v3',
  auth,
});

export async function getNewEvents() {
  const { data } = await calendar.events.list({
    calendarId,
    timeMin: new Date().toISOString()}
  );

  return data.items;
}

function getSummary(booking: Partial<Booking>) : string {
  let summary = "";

  if (booking.org) {
    summary += `${booking.org} - `;
  }

  summary += booking.name;

  return summary;
}

export async function createCalendarEvent(booking : Booking) : Promise<Booking> {

  const response = await calendar.events.insert({
    auth,
    calendarId,
    requestBody: {
      summary: getSummary(booking),
      // description,
      start: { date: booking.startDate },
      end: { date: booking.endDate },
    }
  });

  booking.calendarEventId = response.data.id;

  return booking;
}

export async function deleteCalendarEvent(booking: Booking) {
  await calendar.events.delete({
    auth,
    calendarId,
    eventId: booking.calendarEventId,
  });

  booking.calendarEventId = null;
}

//export async function patchCalendarEvent(booking: { calendarEventId: string } & Partial<Booking> ) : Promise<Booking> {
//  const response = await calendar.events.patch({
//    auth,
//    calendarId,
//    eventId: booking.calendarEventId,
//  });
//
//  return booking;
//}