import { z } from "zod"

import { Lang } from "@/constants/languages"

import {
  JoinLoyaltyContactTypenameEnum,
  LoyaltyBlocksTypenameEnum,
  LoyaltyComponentEnum,
  SidebarTypenameEnum,
} from "@/types/components/loyalty/enums"
import { Embeds } from "@/types/requests/embeds"
import { PageLinkEnum } from "@/types/requests/pageLinks"
import { EdgesWithTotalCount } from "@/types/requests/utils/edges"
import { RTEDocument } from "@/types/rte/node"

const loyaltyPageDynamicContent = z.object({
  __typename: z.literal(
    LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksDynamicContent
  ),
  dynamic_content: z.object({
    title: z.string().nullable(),
    subtitle: z.string().nullable(),
    component: z.nativeEnum(LoyaltyComponentEnum),
    link: z
      .object({
        text: z.string(),
        href: z.string(),
      })
      .optional(),
  }),
})

const loyaltyPageShortcuts = z.object({
  __typename: z.literal(LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksShortcuts),
  shortcuts: z.object({
    title: z.string().nullable(),
    preamble: z.string().nullable(),
    shortcuts: z.array(
      z.object({
        text: z.string().optional(),
        openInNewTab: z.boolean(),
        url: z.string(),
        title: z.string(),
      })
    ),
  }),
})

const cardBlock = z.object({
  heading: z.string().nullable(),
  body_text: z.string().nullable(),
  background_image: z.any(),
  scripted_top_title: z.string().nullable(),
  primaryButton: z
    .object({
      openInNewTab: z.boolean(),
      title: z.string(),
      href: z.string(),
      isExternal: z.boolean(),
    })
    .optional(),
  secondaryButton: z
    .object({
      openInNewTab: z.boolean(),
      title: z.string(),
      href: z.string(),
      isExternal: z.boolean(),
    })
    .optional(),
  system: z.object({
    locale: z.nativeEnum(Lang),
    uid: z.string(),
  }),
})

const loyaltyPageCards = z.object({
  __typename: z.literal(LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksCardsGrid),
  cards_grid: z.object({
    title: z.string().nullable(),
    preamble: z.string().nullable(),
    layout: z.enum(["twoColumnGrid", "threeColumnGrid", "twoPlusOne"]),
    theme: z.enum(["one", "two", "three"]).nullable(),
    cards: z.array(cardBlock),
  }),
})

const loyaltyPageBlockTextContent = z.object({
  __typename: z.literal(LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksContent),
  content: z.object({
    content: z.object({
      embedded_itemsConnection: z.object({
        edges: z.array(z.any()),
        totalCount: z.number(),
      }),
      json: z.any(),
    }),
  }),
})

const loyaltyPageBlockItem = z.discriminatedUnion("__typename", [
  loyaltyPageDynamicContent,
  loyaltyPageBlockTextContent,
  loyaltyPageShortcuts,
  loyaltyPageCards,
])

const loyaltyPageSidebarTextContent = z.object({
  __typename: z.literal(SidebarTypenameEnum.LoyaltyPageSidebarContent),
  content: z.object({
    content: z.object({
      embedded_itemsConnection: z.object({
        edges: z.array(z.any()),
        totalCount: z.number(),
      }),
      json: z.any(),
    }),
  }),
})

const loyaltyPageJoinLoyaltyContact = z.object({
  __typename: z.literal(
    SidebarTypenameEnum.LoyaltyPageSidebarJoinLoyaltyContact
  ),
  join_loyalty_contact: z.object({
    title: z.string().nullable(),
    preamble: z.string().nullable(),
    contact: z.array(
      z.object({
        __typename: z.literal(
          JoinLoyaltyContactTypenameEnum.LoyaltyPageSidebarJoinLoyaltyContactBlockContactContact
        ),
        contact: z.object({
          display_text: z.string().nullable(),
          contact_field: z.string(),
        }),
      })
    ),
  }),
})

const loyaltyPageSidebarItem = z.discriminatedUnion("__typename", [
  loyaltyPageSidebarTextContent,
  loyaltyPageJoinLoyaltyContact,
])

export const validateLoyaltyPageSchema = z.object({
  heading: z.string().nullable(),
  blocks: z.array(loyaltyPageBlockItem).nullable(),
  sidebar: z.array(loyaltyPageSidebarItem).nullable(),
  system: z.object({ uid: z.string() }),
})

// Block types

export type DynamicContent = z.infer<typeof loyaltyPageDynamicContent>

type BlockContentRaw = z.infer<typeof loyaltyPageBlockTextContent>
export interface RteBlockContent extends BlockContentRaw {
  content: {
    content: {
      json: RTEDocument
      embedded_itemsConnection: EdgesWithTotalCount<Embeds>
    }
  }
}

type CardsGridRaw = z.infer<typeof loyaltyPageCards>

export type CardsRaw = CardsGridRaw["cards_grid"]["cards"][number]

export type CardsGrid = z.infer<typeof loyaltyPageCards>

export type Shortcuts = z.infer<typeof loyaltyPageShortcuts>

export type Block = RteBlockContent | DynamicContent | Shortcuts | CardsGrid

// Sidebar block types
type SidebarContentRaw = z.infer<typeof loyaltyPageSidebarTextContent>

export type RteSidebarContent = Omit<SidebarContentRaw, "content"> & {
  content: {
    content: {
      json: RTEDocument
      embedded_itemsConnection: EdgesWithTotalCount<Embeds>
    }
  }
}
export type JoinLoyaltyContact = z.infer<typeof loyaltyPageJoinLoyaltyContact>
export type Sidebar = JoinLoyaltyContact | RteSidebarContent
type LoyaltyPageDataRaw = z.infer<typeof validateLoyaltyPageSchema>

export type LoyaltyPage = Omit<LoyaltyPageDataRaw, "blocks" | "sidebar"> & {
  blocks: Block[]
  sidebar: Sidebar[]
}

// Refs types
const pageConnectionRefs = z.object({
  edges: z.array(
    z.object({
      node: z.object({
        __typename: z.nativeEnum(PageLinkEnum),
        system: z.object({
          content_type_uid: z.string(),
          uid: z.string(),
        }),
      }),
    })
  ),
})

const cardBlockRefs = z.object({
  primary_button: z
    .object({
      linkConnection: pageConnectionRefs,
    })
    .nullable(),
  secondary_button: z
    .object({
      linkConnection: pageConnectionRefs,
    })
    .nullable(),

  system: z.object({
    content_type_uid: z.string(),
    uid: z.string(),
  }),
})

const loyaltyPageCardsRefs = z.object({
  __typename: z.literal(LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksCardsGrid),
  cards_grid: z.object({
    cardConnection: z.object({
      edges: z.array(
        z.object({
          node: cardBlockRefs,
        })
      ),
    }),
  }),
})

const loyaltyPageDynamicContentRefs = z.object({
  __typename: z.literal(
    LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksDynamicContent
  ),
  dynamic_content: z.object({
    link: z.object({
      pageConnection: pageConnectionRefs,
    }),
  }),
})

const loyaltyPageShortcutsRefs = z.object({
  __typename: z.literal(LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksShortcuts),
  shortcuts: z.object({
    shortcuts: z.array(
      z.object({
        linkConnection: pageConnectionRefs,
      })
    ),
  }),
})

const loyaltyPageBlockTextContentRefs = z.object({
  __typename: z.literal(LoyaltyBlocksTypenameEnum.LoyaltyPageBlocksContent),
  content: z.object({
    content: z.object({
      embedded_itemsConnection: pageConnectionRefs,
    }),
  }),
})

const loyaltyPageBlocRefsItem = z.discriminatedUnion("__typename", [
  loyaltyPageDynamicContentRefs,
  loyaltyPageBlockTextContentRefs,
  loyaltyPageShortcutsRefs,
  loyaltyPageCardsRefs,
])

const loyaltyPageSidebarTextContentRef = z.object({
  __typename: z.literal(SidebarTypenameEnum.LoyaltyPageSidebarContent),
  content: z.object({
    content: z.object({
      embedded_itemsConnection: pageConnectionRefs,
    }),
  }),
})

const loyaltyPageSidebarRefsItem = z.discriminatedUnion("__typename", [
  loyaltyPageSidebarTextContentRef,
])

export const validateLoyaltyPageRefsSchema = z.object({
  loyalty_page: z.object({
    blocks: z.array(loyaltyPageBlocRefsItem).nullable(),
    sidebar: z.array(loyaltyPageSidebarRefsItem).nullable(),
    system: z.object({
      content_type_uid: z.string(),
      uid: z.string(),
    }),
  }),
})

export type LoyaltyPageRefsDataRaw = z.infer<
  typeof validateLoyaltyPageRefsSchema
>