import {
  GetLoyaltyPageBreadcrumbs,
  GetLoyaltyPageBreadcrumbsRefs,
} from "@/lib/graphql/Query/BreadcrumbsLoyaltyPage.graphql"
import {
  GetMyPagesBreadcrumbs,
  GetMyPagesBreadcrumbsRefs,
} from "@/lib/graphql/Query/BreadcrumbsMyPages.graphql"
import { internalServerError } from "@/server/errors/trpc"
import { contentstackProcedure, router } from "@/server/trpc"

import {
  validateLoyaltyPageBreadcrumbsContentstackSchema,
  validateLoyaltyPageBreadcrumbsRefsContentstackSchema,
  validateMyPagesBreadcrumbsContentstackSchema,
  validateMyPagesBreadcrumbsRefsContentstackSchema,
} from "./output"
import {
  getBreadcrumbs,
  getRefsResponse,
  getResponse,
  getTags,
  Variables,
} from "./utils"

import type {
  GetLoyaltyPageBreadcrumbsData,
  GetLoyaltyPageBreadcrumbsRefsData,
  GetMyPagesBreadcrumbsData,
  GetMyPagesBreadcrumbsRefsData,
} from "@/types/requests/myPages/breadcrumbs"
import { PageTypeEnum } from "@/types/requests/pageType"

async function getLoyaltyPageBreadcrumbs(variables: Variables) {
  const refsResponse = await getRefsResponse<GetLoyaltyPageBreadcrumbsRefsData>(
    GetLoyaltyPageBreadcrumbsRefs,
    variables
  )

  const validatedRefsData =
    validateLoyaltyPageBreadcrumbsRefsContentstackSchema.safeParse(
      refsResponse.data
    )

  if (!validatedRefsData.success) {
    throw internalServerError(validatedRefsData.error)
  }

  const tags = getTags(validatedRefsData.data.all_loyalty_page, variables)

  const response = await getResponse<GetLoyaltyPageBreadcrumbsData>(
    GetLoyaltyPageBreadcrumbs,
    variables,
    tags
  )

  const validatedBreadcrumbsData =
    validateLoyaltyPageBreadcrumbsContentstackSchema.safeParse(response.data)

  if (!validatedBreadcrumbsData.success) {
    throw internalServerError(validatedBreadcrumbsData.error)
  }

  return getBreadcrumbs(
    validatedBreadcrumbsData.data.all_loyalty_page.items[0],
    variables.locale
  )
}

async function getMyPagesBreadcrumbs(variables: Variables) {
  const refsResponse = await getRefsResponse<GetMyPagesBreadcrumbsRefsData>(
    GetMyPagesBreadcrumbsRefs,
    variables
  )

  const validatedRefsData =
    validateMyPagesBreadcrumbsRefsContentstackSchema.safeParse(
      refsResponse.data
    )
  if (!validatedRefsData.success) {
    throw internalServerError(validatedRefsData.error)
  }

  const tags = getTags(validatedRefsData.data.all_account_page, variables)
  const response = await getResponse<GetMyPagesBreadcrumbsData>(
    GetMyPagesBreadcrumbs,
    variables,
    tags
  )

  const validatedBreadcrumbsData =
    validateMyPagesBreadcrumbsContentstackSchema.safeParse(response.data)

  if (!validatedBreadcrumbsData.success) {
    throw internalServerError(validatedBreadcrumbsData.error)
  }

  return getBreadcrumbs(
    validatedBreadcrumbsData.data.all_account_page.items[0],
    variables.locale
  )
}

export const breadcrumbsQueryRouter = router({
  get: contentstackProcedure.query(async ({ ctx }) => {
    const variables = {
      locale: ctx.lang,
      url: ctx.pathname,
    }

    switch (ctx.contentType) {
      case PageTypeEnum.accountPage:
        return await getMyPagesBreadcrumbs(variables)
      case PageTypeEnum.loyaltyPage:
        return await getLoyaltyPageBreadcrumbs(variables)
      default:
        return []
    }
  }),
})