import { z } from "zod"

import { transformedImageVaultAssetSchema } from "@scandic-hotels/common/utils/imageVault"

import { scriptedCardThemeEnum } from "../../../../enums/scriptedCard"
import { BlocksEnums } from "../../../../types/blocksEnum"
import {
  CardsGridEnum,
  CardsGridLayoutEnum,
} from "../../../../types/cardsGridEnum"
import { systemSchema } from "../system"
import {
  infoCardWithImageBlockSchema,
  transformInfoCardWithImageBlock,
} from "./cards/infoCardWithImage"
import { loyaltyCardBlockSchema } from "./cards/loyaltyCard"
import {
  teaserCardBlockSchema,
  transformTeaserCardBlock,
} from "./cards/teaserCard"
import { buttonSchema } from "./utils/buttonLinkSchema"

export const infoCardBlockSchema = z.object({
  __typename: z.literal(CardsGridEnum.cards.InfoCard),
  // JSON - ImageVault Image
  background_image: transformedImageVaultAssetSchema,
  body_text: z.string().optional().default(""),
  has_primary_button: z.boolean().default(false),
  has_secondary_button: z.boolean().default(false),
  heading: z.string().optional().default(""),
  primary_button: buttonSchema,
  scripted_top_title: z.string().optional(),
  secondary_button: buttonSchema,
  system: systemSchema,
  title: z.string().optional(),
})

export function transformInfoCardBlock(card: typeof infoCardBlockSchema._type) {
  return {
    __typename: card.__typename,
    backgroundImage: card.background_image
      ? {
          src: card.background_image.url,
          alt: card.background_image.meta.alt ?? undefined,
          focalPoint: card.background_image.focalPoint,
          dimensions: card.background_image.dimensions,
        }
      : undefined,
    bodyText: card.body_text,
    heading: card.heading,
    primaryButton:
      card.has_primary_button && card.primary_button
        ? {
            href: card.primary_button.href,
            text: card.primary_button.title,
            openInNewTab: card.primary_button.openInNewTab,
          }
        : undefined,
    topTitle: card.scripted_top_title,
    secondaryButton:
      card.has_secondary_button && card.secondary_button
        ? {
            href: card.secondary_button.href,
            text: card.secondary_button.title,
            openInNewTab: card.secondary_button.openInNewTab,
          }
        : undefined,
    system: card.system,
    title: card.title,
  }
}

export const cardsGridSchema = z.object({
  typename: z
    .literal(BlocksEnums.block.CardsGrid)
    .optional()
    .default(BlocksEnums.block.CardsGrid),
  cards_grid: z
    .object({
      cardConnection: z.object({
        edges: z.array(
          z.object({
            node: z.discriminatedUnion("__typename", [
              infoCardBlockSchema,
              loyaltyCardBlockSchema,
              teaserCardBlockSchema,
              infoCardWithImageBlockSchema,
            ]),
          })
        ),
      }),
      link: buttonSchema.nullish(),

      layout: z.nativeEnum(CardsGridLayoutEnum),
      preamble: z.string().optional().default(""),
      theme: z
        .nativeEnum(scriptedCardThemeEnum)
        .nullable()
        .transform(getInfoCardThemeFromDeprecatedCardTheme),
      title: z.string().optional().default(""),
    })
    .transform((data) => {
      return {
        layout: data.layout,
        preamble: data.preamble,
        theme: data.theme,
        title: data.title,
        link:
          data.link?.href && data.link.title
            ? { href: data.link.href, text: data.link.title }
            : undefined,
        cards: data.cardConnection.edges.map((card) => {
          if (card.node.__typename === CardsGridEnum.cards.InfoCard) {
            return transformInfoCardBlock(card.node)
          } else if (card.node.__typename === CardsGridEnum.cards.TeaserCard) {
            return transformTeaserCardBlock(card.node)
          } else if (
            card.node.__typename === CardsGridEnum.cards.InfoCardWithImage
          ) {
            return transformInfoCardWithImageBlock(card.node)
          } else {
            return {
              __typename: card.node.__typename,
              body_text: card.node.body_text,
              heading: card.node.heading,
              image: card.node.image,
              link: card.node.link,
              system: card.node.system,
              title: card.node.title,
            }
          }
        }),
      }
    }),
})

export function getInfoCardThemeFromDeprecatedCardTheme(theme?: string | null) {
  if (!theme) {
    return null
  }

  switch (theme) {
    case "one":
      return "Primary 1"
    case "primaryDark":
      return "Primary 3"
    case "primaryDim":
      return "Accent"
    case "primaryInverted":
      return "White"
    case "primaryStrong":
      return "Primary 2"
    case "image":
      return "Image"
    case "two": // Doesn't exist anymore, map to Primary 1
    case "three": // Doesn't exist anymore, map to Primary 1
    default:
      return "Primary 1"
  }
}