import {z} from 'zod'

export type GetApiBillingSubscriptionsSubscriptionIdPaymentMethodsArgs = {subscription_id: string};

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

export const paddleBillingPaymentMethodType = z.enum(["card", "paypal"]);

export const paddleBillingPaymentMethodCard = z.object({type: z.string(), last4: z.string(), expiry_month: z.number().int(), expiry_year: z.number().int()});

export const paddleBillingPaymentMethodPaypal = z.object({email: z.string(), reference: z.string()});

export const billingPaymentMethod = z.object({id: z.string(), customer_id: z.string(), address_id: z.string(), type: paddleBillingPaymentMethodType, card: paddleBillingPaymentMethodCard.optional(), paypal: paddleBillingPaymentMethodPaypal.optional(), saved_at: z.string(), updated_at: z.string()});

export const getApiBillingSubscriptionsSubscriptionIdPaymentMethodsResponse = z.array(billingPaymentMethod);

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
};

/**
 * List payment methods for a subscription
 * 
 * GET /billing/subscriptions/{subscription_id}/payment-methods
 * 
 * Also accepts auth: APIKeyAuth
 */
export const getApiBillingSubscriptionsSubscriptionIdPaymentMethods = async (args: GetApiBillingSubscriptionsSubscriptionIdPaymentMethodsArgs, options: GetApiBillingSubscriptionsSubscriptionIdPaymentMethodsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, JWTAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/billing/subscriptions/${encodeURIComponent(String(args.subscription_id))}/payment-methods${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(getApiBillingSubscriptionsSubscriptionIdPaymentMethodsResponse, await res.json())
};