import {z} from 'zod'

export type GetApiOcapiV1SubscriptionBillingOptionsArgs = {'Connect-Region-Code'?: string | undefined};

export type GetApiOcapiV1SubscriptionBillingOptionsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

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 ocapiV1MonetaryValue = z.object({valueIncludingTax: z.number(), valueExcludingTax: z.number(), tax: z.number()});

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 ocapiV1SalesMasterDataPricesPriceDiscount = z.object({calculation: z.union([ocapiV1DiscountCalculationsPercentageOffDiscountCalculation, ocapiV1DiscountCalculationsPriceOffDiscountCalculation, ocapiV1DiscountCalculationsSpecialPriceDiscountCalculation]), amountSaved: ocapiV1MonetaryValue});

export const ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionPriceRestriction = z.literal("Discount");

export const ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionPrice = z.object({price: ocapiV1MonetaryValue, isDefault: z.boolean(), discount: ocapiV1SalesMasterDataPricesPriceDiscount.optional(), restrictions: z.array(ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionPriceRestriction), discountId: z.string().nullable().optional()});

export const ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOption = z.object({id: z.string().min(1), name: ocapiV1Translatable, description: ocapiV1Translatable.optional(), shortName: ocapiV1Translatable, prices: z.array(ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionPrice), subscriptionId: z.number().int(), billingPeriodInMonths: z.number().int(), isRecurring: z.boolean()});

export const ocapiV1LoyaltyMasterDataSubscriptionsSubscription = z.object({id: z.number().int(), name: ocapiV1Translatable, clubId: z.number().int(), minimumTermInMonths: z.number().int(), minimumTermBeforeCanPurchaseFutureSubscriptionInMonths: z.number().int()});

export const ocapiV1SalesMasterDataDiscountsDiscountRestriction = z.enum(["None", "Multiple", "MemberReward", "Voucher", "Availability"]);

export const ocapiV1SalesMasterDataDiscountsDiscount = z.object({id: z.string().min(1), name: ocapiV1Translatable, restriction: ocapiV1SalesMasterDataDiscountsDiscountRestriction, restrictions: z.array(ocapiV1SalesMasterDataDiscountsDiscountRestriction), rewardIds: z.array(z.number().int()), voucherTypeCodes: z.array(z.string()), expiresAt: z.string()});

export const ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionListRelatedData = z.object({subscriptions: z.array(ocapiV1LoyaltyMasterDataSubscriptionsSubscription), discounts: z.array(ocapiV1SalesMasterDataDiscountsDiscount)});

export const ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionListDetails = z.object({billingOptions: z.array(ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOption), relatedData: ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionListRelatedData});

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 a list of subscription billing options and related data from active subscriptions
 * 
 * GET /ocapi/v1/subscription-billing-options
 */
export const getApiOcapiV1SubscriptionBillingOptions = async (args: GetApiOcapiV1SubscriptionBillingOptionsArgs, options: GetApiOcapiV1SubscriptionBillingOptionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/ocapi/v1/subscription-billing-options${query.size > 0 ? `?${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(ocapiV1SalesMasterDataSubscriptionBillingOptionsSubscriptionBillingOptionListDetails, await res.json())
};