Can open new conversations

src/controllers/ConversationsController.ts

@@ -3,6 +3,7 @@ import { ConversationsHelper } from "../helpers/ConversationsHelper";
 import { Conversation, BaseConversation } from "../entities/Conversation";
 import { UserHelper } from "../helpers/UserHelper";
 import { removeHTMLNodes } from "../utils/StringUtils";
+import { ConversationMessage } from "../entities/ConversationMessage";
 
 /**
  * Conversations controller
@@ -120,6 +121,33 @@ export class ConversationsController {
 		h.success("Conversation information successfully updated!");
 	}
 
+	/**
+	 * Refresh current user conversations
+	 * 
+	 * @param h Request handler
+	 */
+	public static async RefreshList(h: RequestHandler) {
+
+		const list = {};
+
+		// Check for new conversations
+		if(h.hasPostParameter("newConversations")) {
+			for(const convID of h.postNumbersSet("newConversations")) {
+				if(!ConversationsHelper.DoesUsersBelongsTo(h.getUserId(), convID))
+					h.error(401, "You are not allowed to fetch the messages of this conversation ("+convID+")!");
+				
+				list["conversation-" + convID] = (await ConversationsHelper.GetLastMessages(convID, 10))
+					.map(e => this.ConversationMessageToAPI(e));
+				
+				// TODO : mark the user has seen the messages
+			}
+		}
+
+		// TODO : Check for refresh on some conversations
+
+		h.send(list);
+	}
+
 	/**
 	 * Get and return safely a conversation ID specified in a $_POST Request
 	 * 
@@ -152,4 +180,19 @@ export class ConversationsController {
 			members: [...c.members]
 		};
 	}
+
+	/**
+	 * Turn a conversation message into an API object
+	 * 
+	 * @param c Information about the conversation
+	 */
+	private static ConversationMessageToAPI(c: ConversationMessage) : any {
+		return {
+			ID: c.id,
+			ID_user: c.userID,
+			time_insert: c.timeSent,
+			message: c.message,
+			image_path: c.hasImage ? c.imageURL : null
+		};
+	}
 }

src/controllers/Routes.ts

@@ -57,6 +57,9 @@ export const Routes : Route[] = [
 
 	{path: "/conversations/updateSettings", cb: (h) => ConversationsController.UpdateSettings(h)},
 
+	{path: "/conversations/refresh", cb: (h) => ConversationsController.RefreshList(h)},
+	
+
 	// Search controller
 	{path: "/search/user", cb: (h) => SearchController.SearchUser(h)},
 	{path: "/user/search", cb: (h) => SearchController.SearchUser(h)}, // Legacy

src/entities/ConversationMessage.ts

@@ -0,0 +1,42 @@
+import { pathUserData } from "../utils/UserDataUtils";
+
+/**
+ * Single conversation message
+ * 
+ * @author Pierre HUBERT
+ */
+
+export interface ConversationMessageInfo {
+	id: number,
+	convID: number,
+	userID: number,
+	timeSent: number,
+	imagePath: string,
+	message: string
+}
+
+export class ConversationMessage implements ConversationMessageInfo {
+	public id: number;
+	public convID: number;
+	public userID: number;
+	public timeSent: number;
+	public imagePath: string;
+	public message: string;
+
+	constructor(info: ConversationMessageInfo) {
+		this.id = info.id;
+		this.convID = info.convID;
+		this.userID = info.userID;
+		this.timeSent = info.timeSent;
+		this.imagePath = info.imagePath;
+		this.message = info.message;
+	}
+
+	get hasImage() : boolean {
+		return this.imagePath.length > 1;
+	}
+
+	get imageURL() : string {
+		return pathUserData(this.imagePath);
+	}
+}

src/helpers/ConversationsHelper.ts

@@ -1,6 +1,7 @@
 import { Conversation, BaseConversation } from "../entities/Conversation";
 import { DatabaseHelper } from "./DatabaseHelper";
 import { time } from "../utils/DateUtils";
+import { ConversationMessage } from "../entities/ConversationMessage";
 
 /**
  * Conversations helper
@@ -240,6 +241,23 @@ export class ConversationsHelper {
 		}) == 1;
 	}
 
+	/**
+	 * Get the last messages of a conversation
+	 * 
+	 * @param convID Target conversation ID
+	 * @param numberOfMessages The maximum number of messages to return
+	 */
+	public static async GetLastMessages(convID: number, numberOfMessages: number) : Promise<Array<ConversationMessage>> {
+		return (await DatabaseHelper.Query({
+			table: MESSAGES_TABLE,
+			where: {
+				conv_id: convID
+			},
+			limit: numberOfMessages,
+			order: "id DESC"
+		})).map(m => this.DBToConversationMessage(convID, m));
+	}
+
 	/**
 	 * Get the list of members of a conversation
 	 * 
@@ -274,4 +292,22 @@ export class ConversationsHelper {
 			members: await this.GetConversationMembers(row.id)
 		}
 	}
+
+	/**
+	 * Turn a database entry into a conversation message
+	 * 
+	 * @param convID The ID of the conversation the message belongs to
+	 * @param row Row to convert
+	 * @return Generated conversation message
+	 */
+	private static DBToConversationMessage(convID: number, row: any) : ConversationMessage {
+		return new ConversationMessage({
+			id: row.id,
+			convID: convID,
+			userID: row.user_id,
+			timeSent: row.time_insert,
+			imagePath: row.image_path ? row.image_path : "",
+			message: row.message ? row.message : ""
+		});
+	}
 }