add window emitters and stuff

src/background/run.ts

@@ -0,0 +1,83 @@
+import { createWindow } from './createWindow';
+import WebSocket from 'ws';
+import { Recorder } from './recorder';
+import { ipcMain, BrowserWindow } from "electron";
+import { windowEmitter } from './windowEmitter';
+
+/*
+ * The main function will be run after electron app is ready.
+ */
+export function main(): void {
+
+    // create main window.
+    let win: BrowserWindow | null;
+    win = createWindow({ width: 350, height: 525, resizable: false });
+
+    // Instantiate ws session with crimata-platorm.
+    const ws = new WebSocket('ws://localhost:8080');
+
+    // Instantiate portAudio recorder.
+    const recorder = new Recorder({
+        channelCount: 1,
+        sampleFormat: 16,
+        sampleRate: 16000,
+        deviceId: -1,
+        closeOnError: false,
+    }, 'binary');
+
+    const initSession = (): void => {
+        ws.send('hernandeze2@xavier.edu');
+    }
+
+    const sendMessage = (Event: any, payload: any): void => {
+        ws.send(JSON.stringify(payload));
+    }
+
+    const sendAudio = (data: string): void => {
+        ws.send(data);
+    }
+
+    const receiveMessage = (message: string): void => {
+      // NOTE assuming message is JSON string
+      const parsed = JSON.parse(message);
+      win.webContents.send('render-message', {
+        message: parsed
+      });
+    }
+
+    const updateRecorder = (Event: any, record: boolean): void => {
+      if (record) {
+          recorder.resume();
+      } else {
+          recorder.pause();
+          const data = recorder.getData();
+          sendAudio(data);
+      }
+    }
+
+    const windowMount = (): void => {
+        console.log('testing mount');
+        // ipc event handlers
+        windowEmitter.emit('window-active', true);
+        ipcMain.on('update-recorder', updateRecorder);
+        ipcMain.on('send-message', sendMessage);
+    }
+
+    const windowDismount = (): void => {
+        console.log('testing dismount');
+        // TODO: Gracefully close ws connection
+         win = null;
+         windowEmitter.emit('window-active', false);
+         ipcMain.removeListener('update-recorder', updateRecorder);
+         ipcMain.removeListener('send-message', sendMessage);
+    }
+
+    // ws handlers
+    ws.on('connect', initSession);
+    ws.on("message", receiveMessage);
+
+    // Handle window mount and dismount.
+    win.webContents.on('did-finish-load', windowMount);
+    win.on("closed", windowDismount);
+
+}