import { cache } from "react"

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

import { router } from "../../.."
import { notFoundError } from "../../../errors"
import { GetContactConfig } from "../../../graphql/Query/ContactConfig.graphql"
import { GetFooter } from "../../../graphql/Query/Footer.graphql"
import { GetHeader } from "../../../graphql/Query/Header.graphql"
import { GetSiteConfig } from "../../../graphql/Query/SiteConfig.graphql"
import { GetSitewideCampaignBanner } from "../../../graphql/Query/SitewideCampaignBanner.graphql"
import { request } from "../../../graphql/request"
import { contentstackBaseProcedure } from "../../../procedures"
import { langInput } from "../../../utils"
import { generateTag } from "../../../utils/generateTag"
import {
  type ContactConfigData,
  headerSchema,
  siteConfigSchema,
  sitewideCampaignBannerSchema,
  validateContactConfigSchema,
  validateFooterConfigSchema,
} from "./output"
import { getAlertPhoneContactData } from "./utils"

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

import type { FooterDataRaw } from "../../../types/footer"
import type { GetHeader as GetHeaderData } from "../../../types/header"
import type {
  GetSiteConfigData,
  GetSitewideCampaignBannerData,
} from "../../../types/siteConfig"

const getContactConfig = cache(async (lang: Lang) => {
  const getContactConfigCounter = createCounter(
    "trpc.contentstack.contactConfig.get"
  )
  const metricsGetContactConfig = getContactConfigCounter.init({ lang })

  metricsGetContactConfig.start()
  const variables = {
    locale: lang,
  }
  const response = await request<ContactConfigData>(
    GetContactConfig,
    variables,
    {
      key: `${lang}:contact_config`,
      ttl: "max",
    }
  )

  if (!response.data) {
    metricsGetContactConfig.noDataError()
    throw notFoundError({
      message: "GetContactConfig returned no data",
      errorDetails: variables,
    })
  }

  const verifiedData = validateContactConfigSchema.safeParse(response.data)

  if (!verifiedData.success) {
    metricsGetContactConfig.validationError(verifiedData.error)
    return null
  }

  metricsGetContactConfig.success()

  return verifiedData.data.all_contact_config.items[0]
})

export const baseQueryRouter = router({
  contact: contentstackBaseProcedure.query(async ({ ctx }) => {
    return await getContactConfig(ctx.lang)
  }),
  header: contentstackBaseProcedure.query(async ({ ctx }) => {
    const { lang } = ctx
    const getHeaderCounter = createCounter("trpc.contentstack.header.get")
    const metricsGetHeader = getHeaderCounter.init({ lang })
    metricsGetHeader.start()

    const variables = { locale: lang }
    const response = await request<GetHeaderData>(GetHeader, variables, {
      key: generateTag(lang, "header"),
      ttl: "max",
    })

    if (!response.data) {
      metricsGetHeader.noDataError()
      throw notFoundError({
        message: "GetHeader returned no data",
        errorDetails: variables,
      })
    }

    const validatedHeaderConfig = headerSchema.safeParse(response.data)

    if (!validatedHeaderConfig.success) {
      metricsGetHeader.validationError(validatedHeaderConfig.error)
      return null
    }

    metricsGetHeader.success()

    return { data: validatedHeaderConfig.data.header }
  }),
  footer: contentstackBaseProcedure.query(async ({ ctx }) => {
    const { lang } = ctx
    const getFooterCounter = createCounter("trpc.contentstack.footer.get")
    const metricsGetFooter = getFooterCounter.init({ lang })
    metricsGetFooter.start()

    const variables = { locale: lang }
    const response = await request<FooterDataRaw>(GetFooter, variables, {
      key: generateTag(lang, "footer"),
      ttl: "max",
    })

    if (!response.data) {
      metricsGetFooter.noDataError()
      throw notFoundError({
        message: "GetFooter returned no data",
        errorDetails: variables,
      })
    }

    const validatedFooterConfig = validateFooterConfigSchema.safeParse(
      response.data
    )

    if (!validatedFooterConfig.success) {
      metricsGetFooter.validationError(validatedFooterConfig.error)
      return null
    }

    metricsGetFooter.success()

    return validatedFooterConfig.data
  }),
  sitewideCampaignBanner: router({
    get: contentstackBaseProcedure
      .input(langInput)
      .query(async ({ input, ctx }) => {
        const lang = input.lang ?? ctx.lang

        const getSitewideCampaignBannerCounter = createCounter(
          "trpc.contentstack.sitewideCampaignBanner.get"
        )
        const metricsGetSitewideCampaignBanner =
          getSitewideCampaignBannerCounter.init({
            lang,
          })

        metricsGetSitewideCampaignBanner.start()

        const variables = { locale: lang }
        const sitewideCampaignBannerResponse =
          await request<GetSitewideCampaignBannerData>(
            GetSitewideCampaignBanner,
            variables,
            { key: generateTag(lang, "sitewide_campaign_banner"), ttl: "max" }
          )

        if (!sitewideCampaignBannerResponse.data) {
          metricsGetSitewideCampaignBanner.noDataError()

          throw notFoundError({
            message: "GetSitewideCampaignBanner returned no data",
            errorDetails: variables,
          })
        }

        const validatedSitewideCampaignBanner =
          sitewideCampaignBannerSchema.safeParse(
            sitewideCampaignBannerResponse.data
          )

        if (!validatedSitewideCampaignBanner.success) {
          metricsGetSitewideCampaignBanner.validationError(
            validatedSitewideCampaignBanner.error
          )
          return null
        }

        metricsGetSitewideCampaignBanner.success()

        return validatedSitewideCampaignBanner.data
      }),
  }),
  siteConfig: contentstackBaseProcedure
    .input(langInput)
    .query(async ({ input, ctx }) => {
      const lang = input.lang ?? ctx.lang

      const getSiteConfigCounter = createCounter(
        "trpc.contentstack.siteConfig.get"
      )
      const metricsGetSiteConfig = getSiteConfigCounter.init({ lang })

      metricsGetSiteConfig.start()

      const variables = { locale: lang }
      const [siteConfigResponse, contactConfig] = await Promise.all([
        request<GetSiteConfigData>(GetSiteConfig, variables, {
          key: generateTag(lang, "site_config"),
          ttl: "max",
        }),
        getContactConfig(lang),
      ])

      if (!siteConfigResponse.data) {
        metricsGetSiteConfig.noDataError()
        throw notFoundError({
          message: "SiteConfig returned no data",
          errorDetails: variables,
        })
      }

      const validatedSiteConfig = siteConfigSchema.safeParse(
        siteConfigResponse.data
      )

      if (!validatedSiteConfig.success) {
        metricsGetSiteConfig.validationError(validatedSiteConfig.error)
        return null
      }

      metricsGetSiteConfig.success()

      const { sitewideAlert } = validatedSiteConfig.data

      return {
        ...validatedSiteConfig.data,
        sitewideAlert: sitewideAlert
          ? {
              ...sitewideAlert,
              phoneContact: contactConfig
                ? getAlertPhoneContactData(sitewideAlert, contactConfig)
                : null,
            }
          : null,
      }
    }),
})