import {z} from 'zod'

export type ReferralCodeSchema = {billing_tier?: ('PAYGO' | 'PRO' | 'ENTERPRISE' | 'ENTERPRISE_LEGACY_2025' | 'PRO_LEGACY_2025' | null) | undefined, code: string, credit_expiry_days?: (number | null) | undefined, do_not_delete?: (boolean | null) | undefined, freeze_date?: (string | null) | undefined, is_plg?: (boolean | null) | undefined, manage_system_domain_id?: (string | null) | undefined, ordway_customer_id?: (string | null) | undefined, sales_force_id?: (string | null) | undefined, valid_to: string, value: number};

export type CreateApiV1ReferralCodesArgs = {'App-ID': string, 'Auth-Token': string, body: ReferralCodeSchema};

export type CreateApiV1ReferralCodesOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const referralCodeSchema = z.object({billing_tier: z.enum(["PAYGO", "PRO", "ENTERPRISE", "ENTERPRISE_LEGACY_2025", "PRO_LEGACY_2025"]).nullable().optional(), code: z.string(), credit_expiry_days: z.number().int().nullable().optional(), do_not_delete: z.boolean().nullable().optional(), freeze_date: z.string().nullable().optional(), is_plg: z.boolean().nullable().optional(), manage_system_domain_id: z.string().nullable().optional(), ordway_customer_id: z.string().nullable().optional(), sales_force_id: z.string().nullable().optional(), valid_to: z.string(), value: z.number()});

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 a new referral_code
 * 
 * POST /v1/referral_codes/
 */
export const createApiV1ReferralCodes = async (args: CreateApiV1ReferralCodesArgs, options: CreateApiV1ReferralCodesOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args['App-ID'] != null) headers.set("App-ID", String(args['App-ID']))
if (args['Auth-Token'] != null) headers.set("Auth-Token", String(args['Auth-Token']))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/referral_codes/${query.size > 0 ? `?${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(referralCodeSchema, await res.json())
};