import { JsonDecoder } from 'ts.data.json'

interface Error {
  error_code: number
  error_msg: string
}

export interface VkErrorResponse {
  success: false
  error: Error
}

const errorDecoder = JsonDecoder.object<Error>(
  {
    error_code: JsonDecoder.number,
    error_msg: JsonDecoder.string,
  },
  'Error decoder'
)

const vkErrorResponseDecoder = JsonDecoder.object<VkErrorResponse>(
  {
    success: JsonDecoder.constant(false),
    error: errorDecoder,
  },
  'VK error response decoder'
)

export default vkErrorResponseDecoder