import {z} from 'zod'

export type CurrencyEnum = 'KES' | 'GHS' | 'NGN' | 'UGX' | 'TZS' | 'XAF' | 'XOF';

export type CardTarrifEnum = 'BUSINESS-PAYS' | 'CUSTOMER-PAYS';

export type AutosendRemiderEnum = 0 | 1 | 2 | 3 | 7;

export type PayRequestsCreateSer = {amount: unknown, first_name: string, last_name: string, reason: string, currency: CurrencyEnum, email: string, card_tarrif?: CardTarrifEnum | undefined, autosend_remider: AutosendRemiderEnum};

export type CreateApiApiV1PaymentRequestsArgs = {body: PayRequestsCreateSer};

export type CreateApiApiV1PaymentRequestsOptions = {baseUrl?: string | undefined, IntaSendBearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const currencyEnum = z.enum(["KES", "GHS", "NGN", "UGX", "TZS", "XAF", "XOF"]);

export const cardTarrifEnum = z.enum(["BUSINESS-PAYS", "CUSTOMER-PAYS"]);

export const autosendRemiderEnum = z.union([z.literal(0), z.literal(1), z.literal(2), z.literal(3), z.literal(7)]);

export const payRequestsCreateSer = z.object({amount: z.string(), first_name: z.string(), last_name: z.string(), reason: z.string(), currency: currencyEnum, email: z.string(), card_tarrif: cardTarrifEnum.optional(), autosend_remider: autosendRemiderEnum});

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 Payment requests
 * 
 * POST /api/v1/payment-requests/
 */
export const createApiApiV1PaymentRequests = async (args: CreateApiApiV1PaymentRequestsArgs, options?: CreateApiApiV1PaymentRequestsOptions) => {
const {baseUrl = "https://api.intasend.com", fetch: fetchFn = fetch, IntaSendBearerAuth} = options ?? {}

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

if (IntaSendBearerAuth !== undefined) headers.set('authorization', `Bearer ${IntaSendBearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/payment-requests/${query.size > 0 ? `?${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(payRequestsCreateSer, await res.json())
};