import {z} from 'zod'

export type PromotionDiscounts = Array<{unit: 'PERCENTAGE_OFF' | 'AMOUNT_OFF' | 'FIXED', amount: number, type: 'SKU' | 'CART' | 'SERVICE' | 'SERVICE_CART', values?: (string | null | Array<Record<string, never>>) | undefined, maximumQuantity?: number | undefined, includeOperator?: ('AND' | 'OR') | undefined, excludeOperator?: ('AND' | 'OR') | undefined, discountId?: string | undefined, isAutoAdd?: boolean | undefined, sets?: (Array<'A' | 'B' | 'C' | 'D' | 'E' | 'F' | 'G' | 'H' | 'I' | 'J' | 'K' | 'L' | 'M' | 'N' | 'O' | 'P' | 'Q' | 'R' | 'S' | 'T' | 'U' | 'V' | 'W' | 'X' | 'Y' | 'Z'>) | undefined}>;

export type PromotionTargetProduct = Array<{type: 'SKU' | 'CATEGORY' | 'ATTRIBUTE' | 'PRICE_TYPE' | 'COLLECTION' | 'PREVIOUS_DISCOUNTS', values: string | Array<number | string | {name: string, value: string | boolean | number}> | number, operator: 'IN' | 'NOT_IN' | 'EQUAL' | 'GREATER_THAN', discountId?: string | undefined}>;

export type PromotionSegment = {id?: number | undefined, name?: string | undefined, defaultValue?: Array<string> | undefined, value?: (Array<string> | string) | undefined};

export type PromotionConditionDetail = {type: 'SKU' | 'QUANTITY' | 'CATEGORY' | 'ATTRIBUTE' | 'PRICE_TYPE' | 'CHANEL' | 'ORDER_VALUE' | 'USER_SEGMENT' | 'USER_TYPE' | 'DATE' | 'SKU_QUANTITY' | 'COLLECTION' | 'PRICE' | 'ORDER_LINE_ITEMS' | 'REGION' | 'PREVIOUS_DISCOUNTS', values: string | number | Array<number | string | {name: string, value: string | boolean | number} | PromotionSegment>, operator: 'NOT_EQUAL' | 'EQUAL' | 'GREATER_THAN' | 'LESS_THAN' | 'GREATER_THAN_OR_EQUAL_TO' | 'LESS_THAN_OR_EQUAL_TO' | 'NOT_IN' | 'IN'};

export type PromotionCondition = Array<{id?: (string | null) | undefined, operator: 'AND' | 'OR', includeOperator?: ('AND' | 'OR') | undefined, excludeOperator?: ('AND' | 'OR') | undefined, conditions: Array<PromotionConditionDetail>, set?: ('A' | 'B' | 'C' | 'D' | 'E' | 'F' | 'G' | 'H' | 'I' | 'J' | 'K' | 'L' | 'M' | 'N' | 'O' | 'P' | 'Q' | 'R' | 'S' | 'T' | 'U' | 'V' | 'W' | 'X' | 'Y' | 'Z') | undefined}>;

export type CouponLimits = Array<{type?: ('SITE_WIDE' | 'PER_USER' | 'ORDER') | undefined, quantity?: number | undefined}>;

export type PromotionTermsAndConditions = Array<{name?: string | undefined, description?: string | undefined}>;

export type PromotionMessages = Array<{title?: string | undefined, message?: string | undefined, pages?: Array<string> | undefined, locales?: Array<string> | undefined}>;

export type ProximityMessages = {threshold?: number | undefined, localizedMessages?: (Array<{locales?: Array<string> | undefined, message?: string | undefined}>) | undefined};

export type PromotionShipmentMethods = Array<string>;

export type PromotionPriceLists = Array<number>;

export type CouponAdditionalAttributes = Array<{name: string, values: string | Array<string>}>;

export type CreateCouponRequest = {name: string, startAt: string, endAt: string, type: 'PRODUCT' | 'CART' | 'QUANTITY' | 'SHIPPING' | 'BUYGET' | 'SPEND_GET', buyOperator?: ('AND' | 'OR') | undefined, isExclusive?: boolean | undefined, couponCodes: Array<string>, details: Array<{discounts: PromotionDiscounts, targetProducts: PromotionTargetProduct, conditions: PromotionCondition}>, limits?: CouponLimits | undefined, termsAndConditions?: PromotionTermsAndConditions | undefined, promotionMessages?: PromotionMessages | undefined, proximityMessages?: ProximityMessages | undefined, shipmentMethodIds?: PromotionShipmentMethods | undefined, eligiblePriceLists?: PromotionPriceLists | undefined, additionalAttributes?: CouponAdditionalAttributes | undefined, note?: string | undefined, level?: number | undefined, stackingType?: ('STACKABLE' | 'EXCLUSIVE' | 'TYPE_EXCLUSIVE' | 'UNIVERSAL') | undefined, isStackable?: boolean | undefined, isAlwaysApplied?: boolean | undefined, singleMultiUse?: ('SINGLE_USE' | 'MULTI_USE') | undefined};

export type CreateApiCouponsArgs = {'x-fabric-tenant-id': string, 'x-fabric-channel-id'?: string | undefined, 'x-client-id'?: string | undefined, 'x-fabric-request-id'?: string | undefined, body: CreateCouponRequest};

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

export const createdAt = z.string();

export const updatedAt = z.string();

export const promotionMessages = z.array(z.object({title: z.string().optional(), message: z.string().optional(), pages: z.array(z.string()).optional(), locales: z.array(z.string()).optional()}));

export const createCouponResponse = z.object({id: z.string(), name: z.string(), status: z.enum(["ACTIVE", "SCHEDULED", "DISABLED", "EXPIRED"]), startAt: z.string(), endAt: z.string(), type: z.enum(["PRODUCT", "CART", "QUANTITY", "SHIPPING", "BUYGET", "SPEND_GET"]), couponCodesCount: z.number().int().optional(), createdAt: createdAt, updatedAt: updatedAt, level: z.number().int().gte(0).lte(5).optional(), stackingType: z.enum(["STACKABLE", "EXCLUSIVE", "TYPE_EXCLUSIVE", "UNIVERSAL"]).optional(), isStackable: z.boolean().optional(), isAlwaysApplied: z.boolean().optional(), singleMultiUse: z.enum(["MULTI_USE", "SINGLE_USE"]).optional(), couponCodes: z.array(z.string()).optional(), promotionMessages: promotionMessages.optional(), additionalAttributes: z.array(z.object({name: z.string(), values: z.union([z.string(), z.array(z.string())]), attributeId: z.number().optional()})).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
};

/**
 * Create coupon
 * 
 * POST /coupons
 */
export const createApiCoupons = async (args: CreateApiCouponsArgs, options?: CreateApiCouponsOptions) => {
const {baseUrl = "https://api.fabric.inc/v3", fetch: fetchFn = fetch, AuthorizationToken} = options ?? {}

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

if (args['x-fabric-tenant-id'] != null) headers.set("x-fabric-tenant-id", String(args['x-fabric-tenant-id']))
if (args['x-fabric-channel-id'] != null) headers.set("x-fabric-channel-id", String(args['x-fabric-channel-id']))
if (args['x-client-id'] != null) headers.set("x-client-id", String(args['x-client-id']))
if (args['x-fabric-request-id'] != null) headers.set("x-fabric-request-id", String(args['x-fabric-request-id']))
if (AuthorizationToken !== undefined) headers.set('authorization', `Bearer ${AuthorizationToken}`)

const url = `${baseUrl.replace(/\/+$/, '')}/coupons${query.size > 0 ? `?${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(createCouponResponse, await res.json())
};