import {z} from 'zod'

export type EmailAddress = string;

export type BillingEntityCode = string;

export type Address = {line1?: string | undefined, line2?: string | undefined, city?: string | undefined, state?: string | undefined, postal_code?: string | undefined, country?: string | undefined};

export type PaymentMethodToken = string;

export type TaxCodes = Array<string>;

export type CustomerMetadata = {key: string, value: string, display_in_invoice: boolean};

export type CustomerUpdateRequest = {name?: string | undefined, email?: EmailAddress | undefined, billing_entity_code?: BillingEntityCode | undefined, address?: Address | undefined, phone?: unknown | undefined, payment_method_token?: PaymentMethodToken | undefined, tax_codes?: TaxCodes | undefined, metadata?: Array<CustomerMetadata> | undefined};

export type UpdateApiCustomersExternalCustomerIdArgs = {external_customer_id: string, body: CustomerUpdateRequest};

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

export const emailAddress = z.string().min(3).max(254);

export const billingEntityCode = z.string();

export const address = z.object({line1: z.string().min(1).max(254).optional(), line2: z.string().min(1).max(512).optional(), city: z.string().min(1).max(512).optional(), state: z.string().min(1).max(512).optional(), postal_code: z.string().min(1).max(512).optional(), country: z.string().min(2).max(2).optional()});

export const paymentMethodToken = z.string().min(1).max(36);

export const paymentMethodType = z.enum(["CARD", "PAYPAL", "ACH_DEBIT", "APPLE_PAY"]);

export const taxCode = z.string();

export const taxResponse = z.object({name: z.string(), rate: z.string().optional(), description: z.string().optional(), code: taxCode.optional(), id: z.string().optional(), created_at: z.string().optional()});

export const customerMetadata = z.object({key: z.string().max(20), value: z.string().max(100), display_in_invoice: z.boolean()});

export const customerWithId = z.object({name: z.string().min(1).max(512), external_id: z.string().min(1).max(64), email: emailAddress, billing_entity_code: billingEntityCode.optional(), address: address.optional(), phone: z.string().optional(), payment_method_token: paymentMethodToken.optional(), payment_method_type: paymentMethodType.optional(), taxes: z.array(taxResponse).optional(), metadata: z.array(customerMetadata).optional(), id: z.string().optional()});

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
};

/**
 * Update a customer by ID
 * 
 * PUT /customers/{external_customer_id}
 */
export const updateApiCustomersExternalCustomerId = async (args: UpdateApiCustomersExternalCustomerIdArgs, options?: UpdateApiCustomersExternalCustomerIdOptions) => {
const {baseUrl = "https://api-m.sandbox.paypal.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/customers/${encodeURIComponent(String(args.external_customer_id))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", 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(customerWithId, await res.json())
};