digitalfabrik/integreat-app

import { DateTime } from 'luxon'

import CategoryModel from '../api/models/CategoryModel'
import { APPOINTMENT_BOOKING_OFFER_ALIAS, INTERNAL_OFFERS } from '../constants'
import TileModel from '../models/TileModel'

export const getSlugFromPath = (path: string): string => path.split('/').pop() ?? ''

export const formatDateICal = (date: DateTime): string => date.toFormat("yyyyMMdd'T'HHmm'00'")

export const safeParseInt = (value: string | number | undefined | null): number | undefined => {
  if (value === null || value === undefined || value === '') {
    return undefined
  }
  const parsed = Number(value)
  return Number.isSafeInteger(parsed) ? parsed : undefined
}

export const addSubdomain = ({ url, subdomain }: { url: string; subdomain: string }): string => {
  if (subdomain === '') {
    return url
  }
  const newUrl = new URL(url)
  newUrl.hostname = `${subdomain}.${newUrl.hostname}`
  return newUrl.toString()
}

export const getCategoryTiles = ({
  categories,
  cityCode,
}: {
  categories: CategoryModel[]
  cityCode: string
}): TileModel[] =>
  categories.map(category => {
    const externalOffer = category.embeddedOffers.find(it => !INTERNAL_OFFERS.includes(it.alias))
    const externalOfferUrl =
      externalOffer?.alias === APPOINTMENT_BOOKING_OFFER_ALIAS
        ? addSubdomain({ url: externalOffer.path, subdomain: cityCode })
        : externalOffer?.path
    return new TileModel({
      title: category.title,
      path: externalOfferUrl ?? category.path,
      thumbnail: category.thumbnail,
      isExternalUrl: externalOfferUrl !== undefined,
    })
  })