import { z } from "zod"

import { logger } from "@scandic-hotels/common/logger"
import { BreakfastPackageEnum } from "@scandic-hotels/trpc/enums/breakfast"
import { RoomPackageCodeEnum } from "@scandic-hotels/trpc/enums/roomFilter"

import { type BookingWidgetSearchData } from "../components/BookingWidget"
import { type BookingSearchType, bookingSearchTypes } from "../misc/searchType"
import { parseSearchParams, serializeSearchParams } from "./searchParams"

import type { Child } from "@scandic-hotels/trpc/types/child"
import type { PackageEnum } from "@scandic-hotels/trpc/types/packages"

import type { NextSearchParams } from "../types"
import type { SelectRateBooking } from "../types/components/selectRate/selectRate"

type PartialRoom = { rooms?: Partial<Room>[] }

export type SelectHotelParams<T> = Omit<T, "hotel"> & {
  hotelId: string
} & PartialRoom

export function searchParamsToRecord(searchParams: URLSearchParams) {
  return Object.fromEntries(searchParams.entries())
}

const keyRenameMap = {
  room: "rooms",
  ratecode: "rateCode",
  counterratecode: "counterRateCode",
  roomtype: "roomTypeCode",
  fromdate: "fromDate",
  todate: "toDate",
  hotel: "hotelId",
  child: "childrenInRoom",
  searchtype: "searchType",
}
const typeHints = {
  filters: "COMMA_SEPARATED_ARRAY",
  packages: "COMMA_SEPARATED_ARRAY",
} as const
export const adultsSchema = z.coerce.number().min(1).max(6).catch(0)
export const childAgeSchema = z.coerce.number().catch(-1)
export const childBedSchema = z.coerce.number().catch(-1)
const searchTypeSchema = z.enum(bookingSearchTypes).optional().catch(undefined)

export function parseBookingWidgetSearchParams(
  searchParams: NextSearchParams
): BookingWidgetSearchData {
  try {
    const result = parseSearchParams(searchParams, {
      keyRenameMap,
      typeHints,
      schema: z.object({
        city: z.string().optional(),
        hotelId: z.string().optional(),
        fromDate: z.string().optional(),
        toDate: z.string().optional(),
        bookingCode: z.string().optional(),
        searchType: searchTypeSchema,
        rooms: z
          .array(
            z.object({
              adults: adultsSchema,
              childrenInRoom: z
                .array(
                  z.object({
                    bed: childBedSchema,
                    age: childAgeSchema,
                  })
                )
                .optional()
                .default([]),
            })
          )
          .optional(),
      }),
    })

    return result
  } catch (error) {
    logger.error(
      "[URL] Error parsing search params for booking widget:",
      error,
      searchParams
    )
    return {}
  }
}

export function parseSelectHotelSearchParams(
  searchParams: NextSearchParams
): SelectHotelBooking | null {
  try {
    const result = parseSearchParams(searchParams, {
      keyRenameMap,
      typeHints,
      schema: z.object({
        city: z.string().optional(),
        hotelId: z.string().optional(),
        fromDate: z.string(),
        toDate: z.string(),
        bookingCode: z.string().optional(),
        searchType: searchTypeSchema,
        rooms: z.array(
          z.object({
            adults: adultsSchema,
            childrenInRoom: z
              .array(
                z.object({
                  bed: childBedSchema,
                  age: childAgeSchema,
                })
              )
              .optional(),
          })
        ),
      }),
    })

    return result
  } catch (error) {
    logger.error("[URL] Error parsing search params for select hotel:", error)

    return null
  }
}

export function parseSelectRateSearchParams(
  searchParams: NextSearchParams
): SelectRateBooking | null {
  try {
    const result = parseSearchParams(searchParams, {
      keyRenameMap,
      typeHints,
      schema: z.object({
        city: z.string().optional(),
        hotelId: z.string(),
        fromDate: z.string(),
        toDate: z.string(),
        searchType: searchTypeSchema,
        bookingCode: z.string().optional(),
        rooms: z.array(
          z.object({
            adults: adultsSchema,
            bookingCode: z.string().optional(),
            counterRateCode: z.string().optional(),
            rateCode: z.string().optional(),
            roomTypeCode: z.string().optional(),
            packages: z
              .array(
                z.nativeEnum({
                  ...BreakfastPackageEnum,
                  ...RoomPackageCodeEnum,
                })
              )
              .optional(),
            childrenInRoom: z
              .array(
                z.object({
                  bed: childBedSchema,
                  age: childAgeSchema,
                })
              )
              .optional(),
          })
        ),
      }),
    })

    return result
  } catch (error) {
    logger.error("[URL] Error parsing search params for select rate:", error)

    return null
  }
}

export function parseDetailsSearchParams(
  searchParams: NextSearchParams
): DetailsBooking | null {
  const packageEnum = {
    ...BreakfastPackageEnum,
    ...RoomPackageCodeEnum,
  } as const

  try {
    const result = parseSearchParams(searchParams, {
      keyRenameMap,
      typeHints,
      schema: z.object({
        city: z.string().optional(),
        hotelId: z.string(),
        fromDate: z.string(),
        toDate: z.string(),
        searchType: searchTypeSchema,
        bookingCode: z.string().optional(),
        rooms: z.array(
          z.object({
            adults: adultsSchema,
            bookingCode: z.string().optional(),
            counterRateCode: z.string().optional(),
            rateCode: z.string(),
            roomTypeCode: z.string(),
            packages: z.array(z.nativeEnum(packageEnum)).optional(),
            childrenInRoom: z
              .array(
                z.object({
                  bed: childBedSchema,
                  age: childAgeSchema,
                })
              )
              .optional(),
          })
        ),
      }),
    })

    return result
  } catch (error) {
    logger.error("[URL] Error parsing search params for details:", error)

    return null
  }
}

const reversedKeyRenameMap = Object.fromEntries(
  Object.entries(keyRenameMap).map(([key, value]) => [value, key])
)
export function serializeBookingSearchParams(
  obj:
    | BookingWidgetSearchData
    | SelectHotelBooking
    | SelectRateBooking
    | DetailsBooking,
  { initialSearchParams }: { initialSearchParams?: URLSearchParams } = {}
) {
  return serializeSearchParams(obj, {
    keyRenameMap: reversedKeyRenameMap,
    initialSearchParams,
    typeHints,
  })
}

export type DetailsBooking = {
  hotelId: string
  fromDate: string
  toDate: string
  city?: string
  bookingCode?: string
  searchType?: BookingSearchType
  rooms: {
    adults: number
    rateCode: string
    roomTypeCode: string
    bookingCode?: string
    childrenInRoom?: Child[]
    counterRateCode?: string
    packages?: PackageEnum[]
  }[]
}
export type SelectHotelBooking = {
  hotelId?: string
  city?: string
  fromDate: string
  toDate: string
  rooms: {
    adults: number
    childrenInRoom?: Child[]
  }[]
  bookingCode?: string
  searchType?: BookingSearchType
}
export interface Room {
  adults: number
  childrenInRoom?: Child[]
  bookingCode?: string | null
  counterRateCode?: string | null
  packages?: PackageEnum[] | null
  rateCode?: string | null
  roomTypeCode?: string | null
}