import { GetDestinationCityListData } from "@/lib/graphql/Query/DestinationCityPage/DestinationCityListData.graphql"
import { request } from "@/lib/graphql/request"

import { generateTag, generateTagsFromSystem } from "@/utils/generateTag"

import { destinationCityListDataSchema } from "../destinationCityPage/output"
import {
  getCityListDataCounter,
  getCityListDataFailCounter,
  getCityListDataSuccessCounter,
} from "./telemetry"

import type { System } from "@/types/requests/system"
import type { GetDestinationCityListDataResponse } from "@/types/trpc/routers/contentstack/destinationCityPage"
import type { GetDestinationCountryPageRefsSchema } from "@/types/trpc/routers/contentstack/destinationCountryPage"
import type { Lang } from "@/constants/languages"

export function generatePageTags(
  validatedData: GetDestinationCountryPageRefsSchema,
  lang: Lang
): string[] {
  const connections = getConnections(validatedData)
  return [
    generateTagsFromSystem(lang, connections),
    generateTag(lang, validatedData.destination_country_page.system.uid),
  ].flat()
}

export function getConnections({
  destination_country_page,
}: GetDestinationCountryPageRefsSchema) {
  const connections: System["system"][] = [destination_country_page.system]

  if (destination_country_page.sidepeek_content) {
    destination_country_page.sidepeek_content.content.embedded_itemsConnection.edges.forEach(
      ({ node }) => {
        connections.push(node.system)
      }
    )
  }

  return connections
}

export async function getCityListDataByCityIdentifier(
  lang: Lang,
  cityIdentifier: string
) {
  getCityListDataCounter.add(1, { lang, cityIdentifier })
  console.info(
    "contentstack.cityListData start",
    JSON.stringify({ query: { lang, cityIdentifier } })
  )
  const tag = `${lang}:city_list_data:${cityIdentifier}`
  const response = await request<GetDestinationCityListDataResponse>(
    GetDestinationCityListData,
    {
      locale: lang,
      cityIdentifier,
    },
    {
      cache: "force-cache",
      next: {
        tags: [tag],
      },
    }
  )

  if (!response.data) {
    getCityListDataFailCounter.add(1, {
      lang,
      cityIdentifier,
      error_type: "not_found",
      error: `Destination city page not found for cityIdentifier: ${cityIdentifier}`,
    })
    console.error(
      "contentstack.cityListData not found error",
      JSON.stringify({ query: { lang, cityIdentifier } })
    )
    return null
  }

  const validatedResponse = destinationCityListDataSchema.safeParse(
    response.data
  )

  if (!validatedResponse.success) {
    getCityListDataFailCounter.add(1, {
      lang,
      cityIdentifier,
      error_type: "validation_error",
      error: JSON.stringify(validatedResponse.error),
    })
    console.error(
      "contentstack.cityListData validation error",
      JSON.stringify({
        query: { lang, cityIdentifier },
        error: validatedResponse.error,
      })
    )
    return null
  }
  getCityListDataSuccessCounter.add(1, { lang, cityIdentifier })
  console.info(
    "contentstack.cityListData success",
    JSON.stringify({ query: { lang, cityIdentifier } })
  )

  return validatedResponse.data
}