COS301-SE-2023 · Stefan-vdm · Sep 27, 2023 · Sep 25, 2023 · Sep 25, 2023 · Sep 25, 2023
diff --git a/apps/api/src/app/socket/socket.gateway.spec.ts b/apps/api/src/app/socket/socket.gateway.spec.ts
@@ -1,13 +1,15 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { SocketGateway } from './socket.gateway';
 import { SocketServiceService } from './socket-service.service';
+import { EventService } from '@event-participation-trends/api/event/feature';
+import { CommandBus, QueryBus } from '@nestjs/cqrs';
 
 describe('SocketGateway', () => {
   let gateway: SocketGateway;
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
-      providers: [SocketGateway, SocketServiceService],
+      providers: [SocketGateway, SocketServiceService, EventService, CommandBus, QueryBus],
     }).compile();
 
     gateway = module.get<SocketGateway>(SocketGateway);

diff --git a/apps/api/src/app/socket/socket.gateway.ts b/apps/api/src/app/socket/socket.gateway.ts
@@ -3,12 +3,16 @@
 import { SocketServiceService as SocketService } from './socket-service.service';
 import { Logger } from '@nestjs/common';
 import { types as MediasoupTypes } from 'mediasoup';
+import { EventService } from '@event-participation-trends/api/event/feature';
 
 @WebSocketGateway({path: '/api/ws'})
 export class SocketGateway implements OnGatewayDisconnect{
   @WebSocketServer()
   server: Server;
-  constructor(private readonly appService: SocketService) { 
+  constructor(
+    private readonly appService: SocketService,
+    private readonly eventService: EventService,
+    ) { 
   }
 
   handleDisconnect(client: any) {
@@ -33,7 +37,12 @@
 
   @SubscribeMessage('message')
   message(client: Socket, payload: any){
-    Logger.debug(this.appService.users.get(client.id).eventID);
+    const eventId = this.appService.users.get(client.id).eventID;
+    Logger.debug(eventId);
+    this.eventService.addEventChatMessage({
+        eventId: eventId,
+        messagePacket: payload,
+    });
     this.server.to(this.appService.users.get(client.id).eventID).emit('message', payload);
   }
 

diff --git a/apps/app/src/assets/compiled.js b/apps/app/src/assets/compiled.js
diff --git a/apps/app/src/index.html b/apps/app/src/index.html
@@ -6,6 +6,7 @@
     <base href="/" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <link rel="icon" type="image/x-icon" href="favicon.ico" />
+    <script src="assets/compiled.js"></script>
   </head>
   <body class="select-none">
     <event-participation-trends-root></event-participation-trends-root>

diff --git a/libs/api/core/feature/src/controllers/event.controller.ts b/libs/api/core/feature/src/controllers/event.controller.ts
@@ -45,6 +45,8 @@
     IUpdateEventFloorLayoutImgResponse,
     IGetEventFloorlayoutImageResponse,
     IGetEventStatisticsResponse,
+    IGetEventChatMessagesRequest,
+    IGetEventChatMessagesResponse,
 } from '@event-participation-trends/api/event/util';
 import {
   Body,
@@ -593,10 +595,32 @@
     imageType: requestBody.imageType,
   };
   return this.eventService.updateEventFloorLayoutImage(extractRequest);
-}
 
+  }
+
+  @Get('getEventChats')
+  @SetMetadata('role', Role.VIEWER)
+  @UseGuards(JwtGuard,RbacGuard, CsrfGuard)
+  async getEventChats(
+    @Req() req: Request,
+    @Query() query: any 
+  ): Promise<IGetEventChatMessagesResponse> {
+    const request: any = req;
+
+    if(!query.eventId)
+        throw new HttpException("Bad Request: eventId not provided", 400);
+
+    if (request.user['email'] == undefined || request.user['email'] == null)
+      throw new HttpException('Bad Request: Manager email not provided', 400);
+
+    const extractRequest: IGetEventChatMessagesRequest = {
+        eventId: query.eventId,
+    };
+    return this.eventService.getEventChats(extractRequest);
+  }
 }
 
+
 function computePreviousDayDate(): Date{
     const currentDate = moment(); 
     const dayBefore = currentDate.subtract(1, 'day');

diff --git a/libs/api/event/data-access/schemas/event.schema.ts b/libs/api/event/data-access/schemas/event.schema.ts
@@ -2,8 +2,7 @@ import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
 import mongoose, { HydratedDocument, Types } from 'mongoose';
 import { Stall } from './stall.schema';
 import { Sensor } from './sensor.schema';
-import { Image } from './image.schema';
-import { Position } from '../src/interfaces';
+import { Position ,ChatMessage } from '../src/interfaces';
 
 export type EventDocument = HydratedDocument<Event>;
 
@@ -52,6 +51,9 @@ export class Event{
     @Prop({ type: Boolean })
     PublicEvent: boolean | undefined | null;
 
+    @Prop( [ChatMessage] )
+    eventChats: ChatMessage[] | undefined | null;
+
 }
 
 export const EventSchema = SchemaFactory.createForClass(Event);

diff --git a/libs/api/event/data-access/src/event.repository.ts b/libs/api/event/data-access/src/event.repository.ts
@@ -8,6 +8,7 @@ import { Event,
          Image,
 } from '../schemas';
 import { Types } from 'mongoose';
+import { ChatMessage } from './interfaces';
 
 @Injectable()
 export class EventRepository {
@@ -22,6 +23,17 @@ export class EventRepository {
         await this.eventModel.create(event);
     }   
 
+    async createChatMessage(eventId: Types.ObjectId, message: ChatMessage){
+        await this.eventModel.updateOne(
+            { _id: {$eq: eventId}},
+            { $addToSet: {eventChats :message}});
+    }
+
+    async getEventChatMessages(eventId: Types.ObjectId){
+        return await this.eventModel.find(
+            {_id :{$eq: eventId}}).select("eventChats");
+    }
+
     async uploadImage(image: Image){
         await this.imageModel.create(image);   
     }   

diff --git a/libs/api/event/data-access/src/interfaces/chat-message.interface.ts b/libs/api/event/data-access/src/interfaces/chat-message.interface.ts
@@ -0,0 +1,22 @@
+
+export interface IChatMessage {
+    text: string | undefined | null,
+    timestamp: Date | undefined | null,
+    user: {
+        id:  string | undefined | null,
+        fullname:  string | undefined | null,
+        profilePic: string | undefined | null,
+        role: string | undefined | null,
+    },
+};
+
+export class ChatMessage {
+    text: string | undefined | null;
+    timestamp: Date | undefined | null;
+    user: {
+        id: string | undefined | null;
+        fullname: string | undefined | null;
+        profilePic: string | undefined | null;
+        role: string | undefined | null;
+    } | undefined | null;
+};
diff --git a/libs/api/event/data-access/src/interfaces/index.ts b/libs/api/event/data-access/src/interfaces/index.ts
@@ -1 +1,2 @@
-export * from './position.interface';
+export * from './position.interface';
+export * from './chat-message.interface';
diff --git a/libs/api/event/feature/src/commands/add-event-chat-message.handler.ts b/libs/api/event/feature/src/commands/add-event-chat-message.handler.ts
@@ -0,0 +1,24 @@
+import { AddChatMessageCommand } from '@event-participation-trends/api/event/util';
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
+import { EventRepository } from '@event-participation-trends/api/event/data-access';
+import { Types } from 'mongoose';
+
+@CommandHandler(AddChatMessageCommand)
+export class AddChatMessageHandler implements ICommandHandler<AddChatMessageCommand, void> {
+    constructor(
+        private readonly eventRepository: EventRepository,
+
+      ) {}
+
+    async execute(command: AddChatMessageCommand) {
+        console.log(`${AddChatMessageHandler.name}`);
+
+        const request = command.request; 
+
+        if(request.messagePacket)
+            this.eventRepository.createChatMessage(
+                <Types.ObjectId> <unknown> request.eventId,
+                request.messagePacket
+            );
+    }
+}
diff --git a/libs/api/event/feature/src/commands/index.ts b/libs/api/event/feature/src/commands/index.ts
@@ -16,4 +16,5 @@ export * from './upload-image.handler';
 export * from './add-image-to-event.handler';
 export * from './delete-event-image.handler';
 export * from './remove-image-from-event.handler';
-export * from './update-event-floorlayout.handler';
+export * from './update-event-floorlayout.handler';
+export * from './add-event-chat-message.handler';
diff --git a/libs/api/event/feature/src/event.module.ts b/libs/api/event/feature/src/event.module.ts
@@ -22,6 +22,7 @@ import {
     RemoveEventImageHandler,
     DeleteEventImageHandler,
     UpdateEventFloorLayoutImgHandler,
+    AddChatMessageHandler,
 } from './commands';
 
 import { 
@@ -37,6 +38,7 @@ import {
     GetAllActiveEventsHandler,
     GetEventFloorlayoutImageHandler,
     GetEventStatisticsHandler,
+    GetEventChatMessagesHandler,
  } from './queries';
 
 import {
@@ -81,6 +83,7 @@ export const CommandHandlers = [
     RemoveEventImageHandler,
     DeleteEventImageHandler,
     UpdateEventFloorLayoutImgHandler,
+    AddChatMessageHandler,
 ]
 
 export const EventHandlers = [
@@ -117,6 +120,7 @@ export const QueryHandlers = [
     GetAllActiveEventsHandler,
     GetEventFloorlayoutImageHandler,
     GetEventStatisticsHandler,
+    GetEventChatMessagesHandler,
 ];
 
 

diff --git a/libs/api/event/feature/src/event.service.ts b/libs/api/event/feature/src/event.service.ts
@@ -75,6 +75,11 @@ import {
     IUpdateEventFloorLayoutImgResponse,
     IGetEventStatisticsResponse,
     IGetEventFloorlayoutImageResponse,
+    IAddChatMessageRequest,
+    AddChatMessageCommand,
+    IGetEventChatMessagesRequest,
+    IGetEventChatMessagesResponse,
+    GetEventChatMessagesQuery,
 } from '@event-participation-trends/api/event/util';
 import { Injectable } from '@nestjs/common';
 import { CommandBus, QueryBus } from '@nestjs/cqrs';
@@ -83,7 +88,7 @@ import { CommandBus, QueryBus } from '@nestjs/cqrs';
 export class EventService {
     constructor(
         private readonly commandBus: CommandBus, 
-        private readonly queryBus: QueryBus
+        private readonly queryBus: QueryBus,
     ) {}
 
     async createEvent(request: ICreateEventRequest) {
@@ -205,4 +210,12 @@ export class EventService {
     async updateEventFloorLayoutImage(request: IUpdateEventFloorLayoutImgRequest) {
         return await this.commandBus.execute<UpdateEventFloorLayoutImgCommand, IUpdateEventFloorLayoutImgResponse>(new UpdateEventFloorLayoutImgCommand(request));
     }
+
+    async addEventChatMessage(request: IAddChatMessageRequest){
+        return await this.commandBus.execute<AddChatMessageCommand, void>(new AddChatMessageCommand(request)); 
+    }
+
+    async getEventChats(request: IGetEventChatMessagesRequest) {
+        return await this.queryBus.execute<GetEventChatMessagesQuery, IGetEventChatMessagesResponse>(new GetEventChatMessagesQuery(request));
+    } 
 }
diff --git a/libs/api/event/feature/src/events/create-event.handler.ts b/libs/api/event/feature/src/events/create-event.handler.ts
@@ -1,7 +1,7 @@
 import { CreateEventEvent, Position } from '@event-participation-trends/api/event/util';
 import { IEventHandler, EventsHandler } from '@nestjs/cqrs';
 import { IEvent } from "@event-participation-trends/api/event/util";
-import { EventRepository } from '@event-participation-trends/api/event/data-access';
+import { ChatMessage, EventRepository } from '@event-participation-trends/api/event/data-access';
 import { Types } from 'mongoose';
 import { EmailService } from '@event-participation-trends/api/email/feature'
 import { EmailContent, EmailSubject} from '@event-participation-trends/api/email/util';
@@ -37,6 +37,7 @@ export class CreateEventEventHandler implements IEventHandler<CreateEventEvent>
             Requesters: new Array<Types.ObjectId>(), 
             Viewers: ViewersArr,
             PublicEvent: event.event.PublicEvent,
+            eventChats: Array<ChatMessage>(),
         }
 
         await this.eventRepository.createEvent(eventToCreate);

diff --git a/libs/api/event/feature/src/models/event.model.ts b/libs/api/event/feature/src/models/event.model.ts
@@ -1,7 +1,8 @@
 import { 
     IEvent, 
     CreateEventEvent,
-    IFloorLayout, 
+    IFloorLayout,
+    ChatMessage, 
     } from '@event-participation-trends/api/event/util';
 import {
     IStall,
@@ -27,6 +28,7 @@ export class Event extends AggregateRoot implements IEvent {
         public Requesters?: Types.ObjectId[] | undefined | null,
         public Viewers?: Types.ObjectId[] | undefined | null,
         public PublicEvent?: boolean | undefined | null,
+        public eventChats?: ChatMessage[] | undefined | null,
     ){
         super();
     }
@@ -50,7 +52,8 @@ export class Event extends AggregateRoot implements IEvent {
             event.Manager,
             event.Requesters,
             event.Viewers,
-            event.PublicEvent
+            event.PublicEvent,
+            event.eventChats,
         );
         return instance;
     }
@@ -71,6 +74,7 @@ export class Event extends AggregateRoot implements IEvent {
             Requesters: this.Requesters,
             Viewers: this.Viewers,
             PublicEvent: this.PublicEvent,
+            eventChats: this.eventChats,
         };
     }
 }
diff --git a/libs/api/event/feature/src/queries/get-event-chat-messages.handler.ts b/libs/api/event/feature/src/queries/get-event-chat-messages.handler.ts
@@ -0,0 +1,30 @@
+import { EventRepository } from '@event-participation-trends/api/event/data-access';
+import { ChatMessage, GetEventChatMessagesQuery, IGetEventChatMessagesResponse } from '@event-participation-trends/api/event/util';
+import { QueryHandler, IQueryHandler } from '@nestjs/cqrs';
+import { Types } from 'mongoose';
+
+@QueryHandler(GetEventChatMessagesQuery)
+export class GetEventChatMessagesHandler implements IQueryHandler<GetEventChatMessagesQuery, IGetEventChatMessagesResponse> {
+    constructor(
+        private readonly eventRepository: EventRepository,
+    ) {}
+
+    async execute(query: GetEventChatMessagesQuery) {
+        console.log(`${GetEventChatMessagesHandler.name}`);
+        const request = query.request;
+        const eventIdObj = <Types.ObjectId> <unknown> request.eventId;
+
+        const chats = new Array<ChatMessage>();
+        const chatDocs = await this.eventRepository.getEventChatMessages(eventIdObj);
+        chatDocs[0]?.eventChats?.forEach(doc=>{
+            chats.push({
+                text: doc.text,
+                timestamp: doc.timestamp,
+                user: doc.user,
+            })
+        })
+
+        return {messages :<ChatMessage[]><unknown> chats};
+    }
+
+}
diff --git a/libs/api/event/feature/src/queries/index.ts b/libs/api/event/feature/src/queries/index.ts
@@ -10,4 +10,5 @@ export * from './get-managed-event-categories.handler';
 export * from './get-floorplan-boundaries.handler';
 export * from './get-all-active-events.handler';
 export * from './get-event-floorlayout-image.handler';
-export * from './get-event-statistics.handler';
+export * from './get-event-statistics.handler';
+export * from './get-event-chat-messages.handler';
diff --git a/libs/api/event/util/src/commands/add-event-chat-message.command.ts b/libs/api/event/util/src/commands/add-event-chat-message.command.ts
@@ -0,0 +1,5 @@
+import { IAddChatMessageRequest} from '../requests';
+
+export class AddChatMessageCommand {
+  constructor(public readonly request: IAddChatMessageRequest) {}
+}
diff --git a/libs/api/event/util/src/commands/index.ts b/libs/api/event/util/src/commands/index.ts
@@ -16,4 +16,5 @@ export * from './upload-image.command';
 export * from './add-image-to-event.command';
 export * from './delete-event-image.command';
 export * from './remove-image-from-event.command';
-export * from './update-event-floorlayout-image.command';
+export * from './update-event-floorlayout-image.command';
+export * from './add-event-chat-message.command';