import { createCounter } from "@scandic-hotels/common/telemetry"

import * as api from "../../../api"
import {
  badRequestError,
  extractResponseDetails,
  serverErrorByStatus,
} from "../../../errors"
import { toApiLang } from "../../../utils"
import { bookingConfirmationSchema } from "./schema"

import type { Lang } from "@scandic-hotels/common/constants/language"

export async function getBooking(
  { confirmationNumber, lang }: { confirmationNumber: string; lang: Lang },
  token: string
) {
  const getBookingCounter = createCounter("booking.get")
  const metricsGetBooking = getBookingCounter.init({ confirmationNumber })

  metricsGetBooking.start()

  const apiResponse = await api.get(
    api.endpoints.v1.Booking.booking(confirmationNumber),
    {
      headers: {
        Authorization: `Bearer ${token}`,
      },
    },
    { language: toApiLang(lang) }
  )

  if (!apiResponse.ok) {
    await metricsGetBooking.httpError(apiResponse)

    // If the booking is not found, return null.
    // This scenario is expected to happen when a logged in user trying to access a booking that doesn't belong to them.
    if (apiResponse.status === 404) {
      return null
    }

    throw serverErrorByStatus(
      apiResponse.status,
      await extractResponseDetails(apiResponse),
      "getBooking failed"
    )
  }

  const apiJson = await apiResponse.json()
  const booking = bookingConfirmationSchema.safeParse(apiJson)
  if (!booking.success) {
    metricsGetBooking.validationError(booking.error)
    throw badRequestError()
  }

  metricsGetBooking.success()

  return booking.data
}