nicer flow for disconnections, adding socket initialization and such

packages/api/index.ts

@@ -1,7 +1,9 @@
 import express, { Application, Request, Response } from "express";
 
 import GetAllSocketClients from "@nirvana/core/sockets/getAllActiveSocketClients";
+import InitializeWs from "./sockets";
 import { NextFunction } from "express";
+import NirvanaResponse from "@nirvana/core/responses/nirvanaResponse";
 import ReceiveSignal from "../core/sockets/receiveSignal";
 import SendSignal from "@nirvana/core/sockets/sendSignal";
 import SocketChannels from "@nirvana/core/sockets/channels";
@@ -26,14 +28,16 @@ app.get("/", (req: Request, res: Response) => {
   res.send("hello world.");
 });
 
+app.use("/api", (req: Request, res: Response) => {
+  res.json(new NirvanaResponse("wohoo, server is healthy"));
+});
+
 app.use("/api/user", getUserRoutes());
 app.use("/api/search", getSearchRoutes());
 app.use("/api/lines", getLineRoutes());
 
 const PORT = 5000;
-var server = app.listen(PORT, () => console.log("express running"));
-
-// socket IO stuff
+const server = app.listen(PORT, () => console.log("express running"));
 
 const io = require("socket.io")(server, {
   // todo: add authentication
@@ -42,118 +46,4 @@ const io = require("socket.io")(server, {
   },
 });
 
-io.on("connection", function (socket: any) {
-  // add to map between between googleUserIds and socketId
-
-  console.log("a user connected");
-
-  // ===== JOIN ====
-  /** User wants to subscribe to live emissions of a conversation */
-  socket.on(SocketChannels.JOIN_ROOM, (relationshipId: string) => {
-    // add this user to the room
-
-    console.log(
-      `${socket.id} user joined room for relationship ${relationshipId}`
-    );
-
-    socket.join(relationshipId);
-
-    console.log(`${socket.id} now in rooms ${socket.rooms}`);
-  });
-
-  // ==== UPDATES ====
-  // can be a change of:
-  // 1. status...later...do short polling for this instead
-  // 2. new content: audio clip or link
-  // 3. someone is starting to speak
-  // send message to everyone in room except sender...
-
-  /** User wants to send some update to a particular room */
-  socket.on(
-    SocketChannels.SEND_AUDIO_CLIP,
-    (relationshipId: string, audioChunks: any) => {
-      console.log(`new audio chunks received..routing to appropriate room!`);
-      console.log(relationshipId);
-      console.log(audioChunks);
-
-      io.in(relationshipId).emit(
-        SocketChannels.SEND_AUDIO_CLIP,
-        relationshipId,
-        audioChunks
-      );
-    }
-  );
-
-  // tell everyone in a room when someone is starting to speak
-  socket.on(SocketChannels.SEND_STARTED_SPEAKING, (relationshipId: string) => {
-    console.log(`started speaking in ${relationshipId}`);
-    io.in(relationshipId).emit(
-      SocketChannels.SEND_STARTED_SPEAKING,
-      relationshipId
-    );
-  });
-
-  // tell everyone in a room when someone is stopping to speak
-  socket.on(SocketChannels.SEND_STOPPED_SPEAKING, (relationshipId: string) => {
-    console.log(`stopped speaking in ${relationshipId}`);
-    io.in(relationshipId).emit(
-      SocketChannels.SEND_STOPPED_SPEAKING,
-      relationshipId
-    );
-  });
-
-  // change of user status to all of users' rooms and db update
-  socket.on(
-    SocketChannels.SEND_USER_STATUS_UPDATE,
-    async (userGoogleId: string, newStatus: UserStatus) => {
-      console.log("new status for user");
-
-      const resultUpdate = await UserService.updateUserStatus(
-        userGoogleId,
-        newStatus
-      );
-
-      // tell all rooms that the user is part of
-      // that this user has updated their status
-      if (resultUpdate?.modifiedCount) {
-        socket.rooms.forEach((roomId: string) => {
-          io.in(roomId).emit(
-            SocketChannels.SEND_USER_STATUS_UPDATE,
-            userGoogleId,
-            newStatus
-          );
-        });
-      }
-    }
-  );
-
-  socket.on(SocketChannels.JOIN_LIVE_ROOM, async () => {
-    // TODO: only get the socket ids of the relevant rooms for this user
-    // return all Socket instances
-    const allConnectedSockets = Array.from(await io.of("/").sockets.keys());
-
-    io.to(socket.id).emit(SocketChannels.GET_ALL_ACTIVE_SOCKET_IDS, {
-      socketIds: allConnectedSockets,
-    } as GetAllSocketClients);
-  });
-
-  socket.on(SocketChannels.SEND_SIGNAL, async (payload: SendSignal) => {
-    console.log(payload);
-
-    const sendingBackData: ReceiveSignal = {
-      simplePeerSignal: payload.simplePeerSignal,
-      senderUserSocketId: socket.id,
-      isGoingBackToInitiator: payload.isAnswerer ? true : false,
-    };
-
-    io.to(payload.userSocketIdToSignal).emit(
-      SocketChannels.RECEIVE_SIGNAL,
-      sendingBackData
-    );
-  });
-
-  // ==== DISCONNECT ====
-  socket.on("disconnect", () => {
-    console.log("user disconnected");
-  });
-});
+InitializeWs(io);