import { headers } from "next/headers"

import { PageContentTypeEnum } from "@scandic-hotels/trpc/enums/contentType"

import { env } from "@/env/server"

import { DEFAULT_THEME } from "./types"
import { getHotelTheme } from "./utils"

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

export async function getThemeClass(lang: Lang): Promise<string> {
  if (!env.HOTEL_BRANDING) {
    return DEFAULT_THEME
  }

  const headersList = await headers()
  const contentType = headersList.get("x-contenttype") || ""

  const isHotelPage =
    contentType && contentType === PageContentTypeEnum.hotelPage

  if (isHotelPage) {
    return await getHotelTheme(lang)
  }

  return DEFAULT_THEME
}