var RESPONSE = {
  success: function (data, message) {
    return {
      code: 0,
      message: message || 'success',
      data: data || null
    }
  },
  error: function (code, message) {
    return {
      code: code || -1,
      message: message || 'error',
      data: null
    }
  },
  paginate: function (list, total, page, pageSize) {
    return {
      code: 0,
      message: 'success',
      data: {
        total: total,
        page: page,
        page_size: pageSize,
        records: list
      }
    }
  }
}

var ERROR_CODES = {
  INVALID_TOKEN: { code: 1001, message: 'invalid_token' },
  TOKEN_EXPIRED: { code: 1002, message: 'token_expired' },
  PERMISSION_DENIED: { code: 1003, message: 'permission_denied' },
  USER_NOT_FOUND: { code: 1004, message: 'user_not_found' },
  DEVICE_NOT_FOUND: { code: 1005, message: 'device_not_found' },
  DEVICE_NOT_BOUND: { code: 1006, message: 'device_not_bound' },
  SUBSCRIPTION_REQUIRED: { code: 1007, message: 'subscription_required' },
  SUBSCRIPTION_EXPIRED: { code: 1008, message: 'subscription_expired' },
  PARAM_ERROR: { code: 2001, message: 'param_error' },
  NETWORK_ERROR: { code: 2002, message: 'network_error' },
  SERVER_ERROR: { code: 3001, message: 'server_error' }
}

module.exports = {
  RESPONSE: RESPONSE,
  ERROR_CODES: ERROR_CODES
}