import {z} from 'zod'

export type GetApiCouponsArgs = {'x-fabric-tenant-id': string, 'x-fabric-channel-id'?: string | undefined, 'x-client-id'?: string | undefined, 'x-fabric-request-id'?: string | undefined, size?: number | undefined, offset?: number | undefined, sort?: ('-updatedAt' | '+updatedAt' | '-couponCodes' | '+couponCodes' | '-startAt' | '+startAt' | '-endAt' | '+endAt' | '-name' | '+name') | undefined, search?: string | undefined};

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

export const offsetQuery = z.object({size: z.number().int().gte(1).lte(100).optional(), offset: z.number().int().gte(0).optional(), count: z.number().int().optional()});

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 couponResponse = 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 getCouponsResponse = z.object({query: offsetQuery.optional(), data: z.array(couponResponse).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
};

/**
 * Get all coupons
 * 
 * GET /coupons
 */
export const getApiCoupons = async (args: GetApiCouponsArgs, options?: GetApiCouponsOptions) => {
const {baseUrl = "https://api.fabric.inc/v3", fetch: fetchFn = fetch, AuthorizationToken} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
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 (args.size != null) query.append("size", String(args.size))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.search != null) query.append("search", String(args.search))
if (AuthorizationToken !== undefined) headers.set('authorization', `Bearer ${AuthorizationToken}`)

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