import { BookingStatus, Booking, PrismaClient, Prisma } from '@prisma/client'

import { getBookedDays as calendarGetBookedDays } from '../lib/googlecalendar'
import { uniqueFilter } from '../helpers/array'
import { dateFormatBackend, getDays, nowInTz } from '../helpers/date'

import { prisma } from './client'

export async function getBookedDays(
  uuidsToIngore?: string[]
) {
  const [bookingsInDbRaw, bookingsInCalendar] = await Promise.all([
    prisma.booking.findMany({
      where: {
        uuid: { notIn: uuidsToIngore },
        startDate: { gte: dateFormatBackend(nowInTz()) },
        status: { notIn: [BookingStatus.REJECTED, BookingStatus.CANCELED] }
      },
      select: {
        startDate: true,
        endDate: true,
      },
    }),
    calendarGetBookedDays(),
  ])

  const bookingsInDb = bookingsInDbRaw.map(booking => getDays(booking)).flat();

  return [...bookingsInDb, ...bookingsInCalendar].filter(uniqueFilter).sort()
}

export function getBookingByUUID(uuid: string) {
  // TODO: can we ignore canceled and rejected ones ?
  return prisma.booking.findUniqueOrThrow({
    where: {
      uuid,
    },
    include: {
      bill: true
    }
  })
}

export function getBookings({
  status = [
    BookingStatus.REQUESTED,
    BookingStatus.CONFIRMED,
  ],
  startDateGreaterThan = '2000-01-01T00:00:00Z',
}
  : { status?: BookingStatus[]; startDateGreaterThan?: string } = {}) {
  return prisma.booking.findMany({
    where: {
      startDate: { gte: startDateGreaterThan },
      status: { notIn: status }
    },
  });
}

export function createBooking(data: Prisma.BookingCreateInput) {
  return prisma.booking.create({
    data
  });
}

export async function patchBooking(
  uuid: string,
  data: Prisma.BookingCreateInput
) {
  const current = await prisma.booking.update({
    where: { uuid },
    data
  });
  const previous = { ...current, ...data }
  return { current, previous }

}

export function createBill(
  bookingUUID: string,
  data: Prisma.BillCreateInput,
) {
  return prisma.bill.create({
    data: {
      ...data,
      booking: {
        connect: { uuid: bookingUUID }
      }
    }
  });
}

export function patchBill(
  bookingUUID: string,
  data: Prisma.BillUpdateInput,
) {
  return prisma.bill.update({
    where: {
    },
    data: {
      ...data,
      booking: {
        connect: { uuid: bookingUUID }
      }
    }
  });
}

export async function getMilageMax() {
  const { milageEnd } = await prisma.bill.findFirst({
    select: { milageEnd: true },
    orderBy: [
      {
        milageEnd: 'desc',
      },
    ],
  });

  return milageEnd || 0;
}