import {z} from 'zod'

export type RewardPurchaseCreateRequest = {reward_id: string, mode?: ('TRANSACTION' | 'DRY_RUN') | undefined};

export type CreateApiV2LoyaltiesProgramsProgramIdMembersMemberIdRewardsPurchasesArgs = {programId: string, memberId: string, body: RewardPurchaseCreateRequest};

export type CreateApiV2LoyaltiesProgramsProgramIdMembersMemberIdRewardsPurchasesOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const rewardPurchaseRejection = z.object({reason: z.string().optional(), details: z.string().optional()});

export const rewardPurchasePoints = z.object({total: z.number().optional()});

export const rewardPurchaseResultReward = z.object({id: z.string().optional(), type: z.enum(["MATERIAL", "DIGITAL"]).optional()});

export const rewardPurchaseResultMaterial = z.object({type: z.enum(["PRODUCT", "SKU"]).optional(), product: z.record(z.string(), z.unknown()).optional(), sku: z.record(z.string(), z.unknown()).optional()});

export const rewardPurchaseDigitalCoupon = z.object({id: z.string().optional(), code: z.string().optional(), result: z.enum(["SKIPPED", "DELETED", "CREDITS_SUBTRACTED"]).optional()});

export const rewardPurchaseDigitalGiftVoucher = z.object({id: z.string().optional(), code: z.string().optional(), amount: z.number().optional(), balance: z.number().optional(), result: z.enum(["SKIPPED", "DELETED", "CREDITS_SUBTRACTED"]).optional()});

export const rewardPurchaseDigitalLoyaltyCardPoints = z.object({points: z.number().optional(), card_definition_id: z.string().optional(), card_id: z.string().optional()});

export const rewardPurchaseResultDigital = z.object({type: z.enum(["DISCOUNT_COUPONS", "GIFT_VOUCHERS", "LOYALTY_CARD_POINTS"]).optional(), discount_coupons: z.array(rewardPurchaseDigitalCoupon).optional(), gift_vouchers: z.array(rewardPurchaseDigitalGiftVoucher).optional(), loyalty_card_points: rewardPurchaseDigitalLoyaltyCardPoints.optional()});

export const rewardPurchaseResult = z.object({reward: rewardPurchaseResultReward.optional(), quantity: z.unknown(), material: rewardPurchaseResultMaterial.optional(), digital: rewardPurchaseResultDigital.optional()});

export const rewardPurchaseTransactionDetailsPurchase = z.object({reason: z.string().optional(), rejection: rewardPurchaseRejection.optional(), metadata: z.record(z.string(), z.unknown()).optional(), points: rewardPurchasePoints.optional(), result: rewardPurchaseResult.optional()});

export const rewardPurchaseRefundPurchaseReference = z.object({card_transaction: z.object({id: z.string().optional()}).optional(), reward_transaction: z.object({id: z.string().optional()}).optional()});

export const rewardPurchaseTransactionDetailsRefund = z.object({reason: z.string().optional(), rejection: rewardPurchaseRejection.optional(), metadata: z.record(z.string(), z.unknown()).optional(), points: rewardPurchasePoints.optional(), result: rewardPurchaseResult.optional(), purchase: rewardPurchaseRefundPurchaseReference.optional()});

export const rewardPurchaseTransaction = z.object({id: z.string().optional(), card_id: z.string().optional(), card_transaction_id: z.unknown(), program_id: z.string().optional(), member_id: z.string().optional(), reward_id: z.string().optional(), status: z.enum(["PENDING", "PROCESSING", "APPROVED", "REJECTED", "SIMULATED", "REFUNDED"]).optional(), type: z.enum(["PURCHASE", "REFUND"]).optional(), details: z.union([rewardPurchaseTransactionDetailsPurchase, rewardPurchaseTransactionDetailsRefund]).optional(), created_at: z.string().optional(), updated_at: z.string().optional(), object: z.string().optional()});

export const rewardPurchaseCreateResponse = z.object({transaction: rewardPurchaseTransaction.optional(), status: z.enum(["TRANSACTION_CREATED", "DRY_RUN"]).optional(), message: z.string().optional()});

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
};

/**
 * Purchase a reward with points
 * 
 * POST /v2/loyalties/programs/{programId}/members/{memberId}/rewards/purchases
 */
export const createApiV2LoyaltiesProgramsProgramIdMembersMemberIdRewardsPurchases = async (args: CreateApiV2LoyaltiesProgramsProgramIdMembersMemberIdRewardsPurchasesArgs, options?: CreateApiV2LoyaltiesProgramsProgramIdMembersMemberIdRewardsPurchasesOptions) => {
const {baseUrl = "https://api.voucherify.io", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v2/loyalties/programs/${encodeURIComponent(String(args.programId))}/members/${encodeURIComponent(String(args.memberId))}/rewards/purchases${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

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