Add enum message parsing

src/app/model/proto-message.model.ts

@@ -6,6 +6,7 @@ export enum MessageTypeEnum {
   Map = 'map',
   Object = 'object',
   Raw = 'raw',
+  Enum = 'enum',
 }
 
 export interface StringMessage extends MessageConfiguration {
@@ -34,6 +35,10 @@ export interface ObjectMessage extends MessageConfiguration {
 
 export interface RawMessage extends MessageConfiguration {}
 
+export interface EnumMessage extends MessageConfiguration {
+  options: string[];
+}
+
 export interface MessageConfiguration {
   type: MessageTypeEnum;
 }
@@ -76,17 +81,29 @@ export const ObjectMessage = (messageDefinition: ProtoMessage) => ({
 
 export const RawMessage = (): RawMessage => ({ type: MessageTypeEnum.Raw });
 
+export const EnumMessage = (options: string[]) => ({
+  type: MessageTypeEnum.Enum,
+  options,
+});
+
 export interface ProtoMessageField {
   name: string;
   configuration: MessageConfiguration;
   value: any;
 }
 
-export interface ProtoMessage {
+export interface ProtoBase {
   name: string;
+}
+
+export interface ProtoMessage extends ProtoBase {
   values: ProtoMessageField[];
 }
 
+export interface ProtoEnum extends ProtoBase {
+  options: string[];
+}
+
 export const UnknownProto = (name: string): ProtoMessage => ({
   name,
   values: [{ name: 'Raw JSON', configuration: RawMessage(), value: '' }],