import {z} from 'zod'

export type GetApiOcapiV1MembersCurrentRewardsArgs = {loyaltySessionToken?: string | undefined, 'Connect-Region-Code'?: string | undefined};

export type GetApiOcapiV1MembersCurrentRewardsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const ocapiV1Quantity = z.object({isUnlimited: z.boolean(), value: z.number().int().nullable().optional()});

export const ocapiV1LoyaltyMembersRewardsMemberReward = z.object({rewardId: z.number().int(), instanceNumber: z.number().int(), availableQuantity: ocapiV1Quantity, expiresAt: z.string().nullable().optional()});

export const ocapiV1Translation = z.object({languageTag: z.string().min(1), text: z.string().min(1)});

export const ocapiV1Translatable = z.object({text: z.string().min(1), translations: z.array(ocapiV1Translation)});

export const ocapiV1LoyaltyMasterDataRewardsRewardBalanceCost = z.object({balanceTypeId: z.number().int(), units: z.number()});

export const ocapiV1LoyaltyMasterDataRewardsRewardType = z.object({name: ocapiV1Translatable});

export const ocapiV1DiscountCalculationsDiscountCalculationType = z.enum(["SpecialPrice", "PercentageOff", "PriceOff"]);

export const ocapiV1DiscountCalculationsPercentageOffDiscountCalculation = z.object({percentageOff: z.number(), type: ocapiV1DiscountCalculationsDiscountCalculationType});

export const ocapiV1DiscountCalculationsPriceOffDiscountCalculation = z.object({priceOff: z.number(), type: ocapiV1DiscountCalculationsDiscountCalculationType});

export const ocapiV1DiscountCalculationsSpecialPriceDiscountCalculation = z.object({specialPrice: z.number(), type: ocapiV1DiscountCalculationsDiscountCalculationType});

export const ocapiV1LoyaltyMasterDataRewardsRewardRestriction = z.literal("MemberRewardAvailability");

export const ocapiV1LoyaltyMasterDataRewardsReward = z.object({id: z.number().int(), name: ocapiV1Translatable, description: ocapiV1Translatable.optional(), balanceCost: ocapiV1LoyaltyMasterDataRewardsRewardBalanceCost.optional(), type: ocapiV1LoyaltyMasterDataRewardsRewardType, itemId: z.string().nullable().optional(), limitPerOrder: z.number().int().nullable().optional(), limitPerShowtime: z.number().int().nullable().optional(), discountCalculation: z.union([ocapiV1DiscountCalculationsPercentageOffDiscountCalculation, ocapiV1DiscountCalculationsPriceOffDiscountCalculation, ocapiV1DiscountCalculationsSpecialPriceDiscountCalculation]).optional(), restrictions: z.array(ocapiV1LoyaltyMasterDataRewardsRewardRestriction)});

export const ocapiV1LoyaltyMasterDataItemsLoyaltyItemGroupType = z.enum(["Custom", "Ticket", "Item", "Discount"]);

export const ocapiV1LoyaltyItemsLoyaltyItemGroup = z.object({name: ocapiV1Translatable, type: ocapiV1LoyaltyMasterDataItemsLoyaltyItemGroupType});

export const ocapiV1LoyaltyItemsLoyaltyItemClass = z.object({name: ocapiV1Translatable, group: ocapiV1LoyaltyItemsLoyaltyItemGroup.optional()});

export const ocapiV1LoyaltyItemsLoyaltyItem = z.object({id: z.string().min(1), name: ocapiV1Translatable, itemClass: ocapiV1LoyaltyItemsLoyaltyItemClass.optional()});

export const ocapiV1LoyaltyMembersRewardsMemberRewardListRelatedData = z.object({rewards: z.array(ocapiV1LoyaltyMasterDataRewardsReward), items: z.array(ocapiV1LoyaltyItemsLoyaltyItem)});

export const ocapiV1LoyaltyMembersRewardsMemberRewardListDetails = z.object({memberRewards: z.array(ocapiV1LoyaltyMembersRewardsMemberReward), relatedData: ocapiV1LoyaltyMembersRewardsMemberRewardListRelatedData});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Gets the list of member reward entities for the currently authenticated member
 * 
 * GET /ocapi/v1/members/current/rewards
 */
export const getApiOcapiV1MembersCurrentRewards = async (args: GetApiOcapiV1MembersCurrentRewardsArgs, options: GetApiOcapiV1MembersCurrentRewardsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.loyaltySessionToken != null) headers.set("loyaltySessionToken", String(args.loyaltySessionToken))
if (args['Connect-Region-Code'] != null) headers.set("Connect-Region-Code", String(args['Connect-Region-Code']))

const url = `${baseUrl.replace(/\/+$/, '')}/ocapi/v1/members/current/rewards${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(ocapiV1LoyaltyMembersRewardsMemberRewardListDetails, await res.json())
};