import {z} from 'zod'

export type Customer = {id?: string | undefined, source_id?: string | undefined, name?: string | undefined, description?: string | undefined, email?: string | undefined, phone?: string | undefined, birthday?: string | undefined, birthdate?: string | undefined, address?: ({city?: string | undefined, state?: string | undefined, line_1?: string | undefined, line_2?: string | undefined, country?: string | undefined, postal_code?: string | undefined} | null) | undefined, metadata?: Record<string, never> | undefined};

export type CustomerId = {id: string, object: 'customer'};

export type ReferrerId = {id: string, object: 'customer'};

export type LoyaltiesQualificationsCheckEligibilityRequestBody = {customer: Customer, order: {id?: string | undefined, source_id?: string | undefined, status?: ('CREATED' | 'PAID' | 'CANCELED' | 'FULFILLED') | undefined, amount?: number | undefined, initial_amount?: number | undefined, discount_amount?: number | undefined, items?: (Array<{id?: string | undefined, sku_id?: string | undefined, product_id?: string | undefined, related_object?: ('product' | 'sku') | undefined, source_id?: string | undefined, quantity?: number | undefined, discount_quantity?: number | undefined, initial_quantity?: number | undefined, amount?: number | undefined, discount_amount?: number | undefined, applied_discount_amount?: number | undefined, applied_discount_quantity?: number | undefined, applied_quantity?: number | undefined, applied_quantity_amount?: number | undefined, initial_amount?: number | undefined, price?: number | undefined, subtotal_amount?: number | undefined, product?: ({id?: string | undefined, source_id?: string | undefined, override?: boolean | undefined, name?: string | undefined, metadata?: Record<string, never> | undefined, price?: number | undefined}) | undefined, sku?: ({id?: string | undefined, source_id?: string | undefined, override?: boolean | undefined, sku?: string | undefined, price?: number | undefined, metadata?: Record<string, never> | undefined}) | undefined, object: 'order_item', metadata?: Record<string, never> | undefined}>) | undefined, customer_id?: (string | null) | undefined, referrer_id?: (string | null) | undefined, customer?: CustomerId | undefined, referrer?: ReferrerId | undefined, metadata?: Record<string, never> | undefined}};

export type CreateApiV1LoyaltiesCampaignIdQualificationsArgs = {body: LoyaltiesQualificationsCheckEligibilityRequestBody};

export type CreateApiV1LoyaltiesCampaignIdQualificationsOptions = {baseUrl?: string | undefined, XAppId?: string | undefined, XAppToken?: string | undefined, fetch?: typeof fetch | undefined};

export const loyaltiesQualificationsCheckEligibilityResponseBody = z.object({campaign: z.object({id: z.string(), name: z.string(), object: z.literal("campaign")}), points_estimation: z.number().int()});

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
};

/**
 * Estimate loyalty points
 * 
 * POST /v1/loyalties/{campaignId}/qualifications
 * 
 * Also accepts auth: X-Voucherify-OAuth
 */
export const createApiV1LoyaltiesCampaignIdQualifications = async (args: CreateApiV1LoyaltiesCampaignIdQualificationsArgs, options?: CreateApiV1LoyaltiesCampaignIdQualificationsOptions) => {
const {baseUrl = "https://api.voucherify.io", fetch: fetchFn = fetch, XAppId, XAppToken} = options ?? {}

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

if (XAppId !== undefined) headers.set("X-App-Id", XAppId)
if (XAppToken !== undefined) headers.set("X-App-Token", XAppToken)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/loyalties/${encodeURIComponent(String(args.campaignId))}/qualifications${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(loyaltiesQualificationsCheckEligibilityResponseBody, await res.json())
};