import {z} from 'zod'

export type GetApiGatewayIntegrationsGatewayIntegrationIdArgs = {'Finix-Version'?: string | undefined};

export type GetApiGatewayIntegrationsGatewayIntegrationIdOptions = {baseUrl?: string | undefined, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const id = z.string().min(1);

export const createdAt = z.string();

export const updatedAt = z.string();

export const applicationId = z.string().min(1);

export const tags = z.record(z.string(), z.unknown()).nullable();

export const self = z.object({href: z.string().min(1).optional()});

export const gatewayIntegration = z.object({id: id.optional(), created_at: createdAt.optional(), updated_at: updatedAt.optional(), application_id: applicationId.optional(), linked_to: z.string().optional(), linked_type: z.literal("MERCHANT").optional(), email: z.string().optional(), state: z.enum(["FAILED", "PENDING", "SUCCEEDED"]).optional(), tags: tags.optional(), type: z.literal("CYBERSOURCE").optional(), _links: z.object({self: self.optional()}).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
};

/**
 * Fetch a Gateway Integration
 * 
 * GET /gateway_integrations/{gateway_integration_id}
 */
export const getApiGatewayIntegrationsGatewayIntegrationId = async (args: GetApiGatewayIntegrationsGatewayIntegrationIdArgs, options?: GetApiGatewayIntegrationsGatewayIntegrationIdOptions) => {
const {baseUrl = "https://finix.sandbox-payments-api.com", fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

if (args['Finix-Version'] != null) headers.set("Finix-Version", String(args['Finix-Version']))
if (BasicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuth.username}:${BasicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/gateway_integrations/${encodeURIComponent(String(args.gateway_integration_id))}${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(gatewayIntegration, await res.json())
};