import {z} from 'zod'

export type PydanticObjectId = string;

export type GetApiV2GiftcardsProgramsProgramIdReportsExpirationWarningsArgs = {programId: PydanticObjectId | null, cardId?: (PydanticObjectId | null) | undefined, 'X-Eposn-Customer-Token'?: (string | null) | undefined, 'X-Eposn-Merchant-Token'?: (string | null) | undefined};

export type GetApiV2GiftcardsProgramsProgramIdReportsExpirationWarningsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const expirationWarningResponse = z.object({cardId: z.string(), cardNumber: z.string(), customerEmail: z.string().nullable(), customerName: z.string().nullable(), daysUntilExpiry: z.number().int(), warningLevel: z.string(), expiresAt: z.string(), balance: z.string()});

export const expirationWarningReportResponse = z.object({reportId: z.string(), generatedAt: z.string(), warnings: z.array(expirationWarningResponse), count30d: z.number().int(), count60d: z.number().int(), count90d: 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
};

/**
 * Getexpirationwarnings
 * 
 * GET /v2/giftcards/programs/{programId}/reports/expiration-warnings
 */
export const getApiV2GiftcardsProgramsProgramIdReportsExpirationWarnings = async (args: GetApiV2GiftcardsProgramsProgramIdReportsExpirationWarningsArgs, options?: GetApiV2GiftcardsProgramsProgramIdReportsExpirationWarningsOptions) => {
const {baseUrl = "https://api.loyalty.dog", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.cardId != null) query.append("cardId", String(args.cardId))
if (args['X-Eposn-Customer-Token'] != null) headers.set("X-Eposn-Customer-Token", String(args['X-Eposn-Customer-Token']))
if (args['X-Eposn-Merchant-Token'] != null) headers.set("X-Eposn-Merchant-Token", String(args['X-Eposn-Merchant-Token']))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/giftcards/programs/${encodeURIComponent(String(args.programId))}/reports/expiration-warnings${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(expirationWarningReportResponse, await res.json())
};