import { WebhookTriggerEvents } from "@prisma/client";
import type { NextApiRequest, NextApiResponse } from "next";
import { v4 as uuidv4 } from "uuid";

import { withMiddleware } from "@lib/helpers/withMiddleware";
import { BookingResponse, BookingsResponse } from "@lib/types";
import sendPayload from "@lib/utils/sendPayload";
import getWebhooks from "@lib/utils/webhookSubscriptions";
import { schemaBookingCreateBodyParams, schemaBookingReadPublic } from "@lib/validations/booking";
import { schemaEventTypeReadPublic } from "@lib/validations/event-type";

async function createOrlistAllBookings(
  { method, body, userId, isAdmin, prisma }: NextApiRequest,
  res: NextApiResponse<BookingsResponse | BookingResponse>
) {
  if (method === "GET") {
    /**
     * @swagger
     * /bookings:
     *   get:
     *     summary: Find all bookings
     *     operationId: listBookings
     *     tags:
     *     - bookings
     *     responses:
     *       200:
     *         description: OK
     *       401:
     *        description: Authorization information is missing or invalid.
     *       404:
     *         description: No bookings were found
     */
    if (!isAdmin) {
      const data = await prisma.booking.findMany({ where: { userId } });
      const bookings = data.map((booking) => schemaBookingReadPublic.parse(booking));
      if (bookings) res.status(200).json({ bookings });
      else {
        (error: Error) =>
          res.status(404).json({
            message: "No Bookings were found",
            error,
          });
      }
    } else {
      const data = await prisma.booking.findMany();
      const bookings = data.map((booking) => schemaBookingReadPublic.parse(booking));
      if (bookings) res.status(200).json({ bookings });
      else {
        (error: Error) =>
          res.status(404).json({
            message: "No Bookings were found",
            error,
          });
      }
    }
  } else if (method === "POST") {
    /**
     * @swagger
     * /bookings:
     *   post:
     *     summary: Creates a new booking
     *     operationId: addBooking
     *     requestBody:
     *       description: Edit an existing booking related to one of your event-types
     *       required: true
     *       content:
     *         application/json:
     *           schema:
     *             type: object
     *             properties:
     *               title:
     *                 type: string
     *                 example: 15min
     *               startTime:
     *                 type: string
     *                 example: 1970-01-01T17:00:00.000Z
     *               endTime:
     *                 type: string
     *                 example: 1970-01-01T17:00:00.000Z
     *     tags:
     *     - bookings
     *     responses:
     *       201:
     *         description: OK, booking created
     *       400:
     *        description: Bad request. Booking body is invalid.
     *       401:
     *        description: Authorization information is missing or invalid.
     */
    const safe = schemaBookingCreateBodyParams.safeParse(body);
    if (!safe.success) {
      console.log(safe.error);
      res.status(400).json({ message: "Bad request. Booking body is invalid." });
      return;
    }
    if (!isAdmin) {
      safe.data.userId = userId;
    }
    const data = await prisma.booking.create({ data: { uid: uuidv4(), ...safe.data } });
    const booking = schemaBookingReadPublic.parse(data);

    if (booking) {
      const eventType = await prisma.eventType
        .findUnique({ where: { id: booking.eventTypeId as number } })
        .then((data) => schemaEventTypeReadPublic.parse(data))
        .catch((e: Error) => {
          console.error(`Event type with ID: ${booking.eventTypeId} not found`, e);
        });
      console.log(`eventType: ${eventType}`);
      const evt = {
        type: eventType?.title || booking.title,
        title: booking.title,
        description: "",
        additionalNotes: "",
        customInputs: {},
        startTime: booking.startTime.toISOString(),
        endTime: booking.endTime.toISOString(),
        organizer: {
          name: "",
          email: "",
          timeZone: "",
          language: {
            locale: "en",
          },
        },
        attendees: [],
        location: "",
        destinationCalendar: null,
        hideCalendar: false,
        uid: booking.uid,
        metadata: {},
      };
      console.log(`evt: ${evt}`);

      // Send Webhook call if hooked to BOOKING_CREATED
      const triggerEvent = WebhookTriggerEvents.BOOKING_CREATED;
      console.log(`Trigger Event: ${triggerEvent}`);
      const subscriberOptions = {
        userId,
        eventTypeId: booking.eventTypeId as number,
        triggerEvent,
      };
      console.log(`subscriberOptions: ${subscriberOptions}`);

      const subscribers = await getWebhooks(subscriberOptions, prisma);
      console.log(`subscribers: ${subscribers}`);
      const bookingId = booking?.id;
      const promises = subscribers.map((sub) =>
        sendPayload(triggerEvent, new Date().toISOString(), sub, {
          ...evt,
          bookingId,
        }).catch((e) => {
          console.error(`Error executing webhook for event: ${triggerEvent}, URL: ${sub.subscriberUrl}`, e);
        })
      );
      await Promise.all(promises);
      console.log("All promises resolved! About to send the response");
      res.status(201).json({ booking, message: "Booking created successfully" });
    } else
      (error: Error) => {
        console.log(error);
        res.status(400).json({
          message: "Could not create new booking",
          error,
        });
      };
  } else res.status(405).json({ message: `Method ${method} not allowed` });
}

export default withMiddleware("HTTP_GET_OR_POST")(createOrlistAllBookings);