import { NextResponse } from "next/server"

import { hotelReservation } from "@/constants/routes/hotelReservation"

import { resolve as resolveEntry } from "@/utils/entry"
import { findLang } from "@/utils/languages"
import { removeTrailingSlash } from "@/utils/url"

import { getDefaultRequestHeaders } from "./utils"

import type { NextMiddleware } from "next/server"

import type { MiddlewareMatcher } from "@/types/middleware"

export const middleware: NextMiddleware = async (request) => {
  const { nextUrl } = request
  const lang = findLang(nextUrl.pathname)!

  const pathWithoutTrailingSlash = removeTrailingSlash(nextUrl.pathname)
  const pathNameWithoutLang = pathWithoutTrailingSlash.replace(`/${lang}`, "")
  const { contentType, uid } = await resolveEntry(pathNameWithoutLang, lang)

  const headers = getDefaultRequestHeaders(request)
  if (uid) {
    headers.set("x-uid", uid)
  }
  if (contentType) {
    headers.set("x-contenttype", contentType)
  }
  return NextResponse.next({
    request: {
      headers,
    },
  })
}

export const matcher: MiddlewareMatcher = (request) => {
  const lang = findLang(request.nextUrl.pathname)!
  return request.nextUrl.pathname.startsWith(hotelReservation[lang])
}