NSIS installer id for analytics (n-air-app#310)

* NSIS installer id for analytics

* remove pjson edit

app/services/usage-statistics.ts

@@ -2,6 +2,9 @@ import { Service } from './service';
 import { Inject } from '../util/injector';
 import { UserService } from './user';
 import { HostsService } from './hosts';
+import fs from 'fs';
+import path from 'path';
+import electron from 'electron';
 
 export type TUsageEvent =
   'stream_start' |
@@ -11,6 +14,7 @@ export type TUsageEvent =
 
 interface IUsageApiData {
   token?: string;
+  installer_id?: string;
   slobs_user_id: string;
   event: TUsageEvent;
   data: object;
@@ -32,18 +36,46 @@ export function track(event: TUsageEvent) {
 
 
 export class UsageStatisticsService extends Service {
+  @Inject() userService: UserService;
+  @Inject() hostsService: HostsService;
 
-  @Inject()
-  userService: UserService;
+  installerId: string;
 
-  @Inject()
-  hostsService: HostsService;
+  init() {
+    this.loadInstallerId();
+  }
+
+  loadInstallerId() {
+    let installerId = localStorage.getItem('installerId');
+
+    if (!installerId) {
+      const exePath = electron.remote.app.getPath('exe');
+      const installerNamePath = path.join(path.dirname(exePath), 'installername');
+
+      if (fs.existsSync(installerNamePath)) {
+        try {
+          const installerName = fs.readFileSync(installerNamePath).toString();
+
+          if (installerName) {
+            const matches = installerName.match(/\-([A-Za-z0-9]+)\.exe/);
+            if (matches) {
+              installerId = matches[1];
+              localStorage.setItem('installerId', installerId);
+            }
+          }
+        } catch (e) {
+          console.error('Error loading installer id', e);
+        }
+      }
+    }
+
+    this.installerId = installerId;
+  }
 
   get isProduction() {
     return process.env.NODE_ENV === 'production';
   }
 
-
   /**
    * Record a usage event on our server.
    * @param event the event type to record
@@ -65,6 +97,10 @@ export class UsageStatisticsService extends Service {
       bodyData.token = this.userService.widgetToken;
     }
 
+    if (this.installerId) {
+      bodyData.installer_id = this.installerId;
+    }
+
     const request = new Request(`https://${this.hostsService.streamlabs}/api/v5/slobs/log`, {
       method: 'POST',
       headers,

installer.nsh

@@ -0,0 +1,5 @@
+!macro customInstall
+  FileOpen $0 "$INSTDIR\installername" w
+  FileWrite $0 $EXEFILE
+  FileClose $0
+!macroend

package.json

@@ -47,7 +47,8 @@
       "license": "AGREEMENT",
       "oneClick": false,
       "allowToChangeInstallationDirectory": true,
-      "perMachine": true
+      "perMachine": true,
+      "include": "installer.nsh"
     }
   },
   "ava": {