From fa578fb37c0c3d80fd236d18bda9114dcca0343c Mon Sep 17 00:00:00 2001
From: Yuya Ochiai <yuya0321@gmail.com>
Date: Tue, 7 Nov 2017 22:32:23 +0900
Subject: [PATCH] Show error dialog when wrong buildConfig is used

---
 src/common/config/buildConfig.js | 1 +
 src/main.js                      | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/src/common/config/buildConfig.js b/src/common/config/buildConfig.js
index 141c82f4..c9df6342 100644
--- a/src/common/config/buildConfig.js
+++ b/src/common/config/buildConfig.js
@@ -6,6 +6,7 @@
  * @prop {string} helpLink - The URL for "Help->Learn More..." menu item.
  *                           If null is specified, the menu disappears.
  * @prop {boolean} enableServerManagement - Whether users can edit servers configuration.
+ *                                          If false is specified, defaultTeams must have a team at least.
  */
 const buildConfig = {
   defaultTeams: [/*
diff --git a/src/main.js b/src/main.js
index e8feed53..76d7e1de 100644
--- a/src/main.js
+++ b/src/main.js
@@ -31,6 +31,7 @@ if (squirrelStartup()) {
 }
 
 var settings = require('./common/settings');
+const buildConfig = require('./common/config/buildConfig');
 var certificateStore = require('./main/certificateStore').load(path.resolve(app.getPath('userData'), 'certificate.json'));
 const {createMainWindow} = require('./main/mainWindow');
 const appMenu = require('./main/menus/app');
@@ -367,6 +368,14 @@ app.on('ready', () => {
   if (global.willAppQuit) {
     return;
   }
+  if (buildConfig.enableServerManagement === false && buildConfig.defaultTeams.length === 0) {
+    dialog.showMessageBox({
+      type: 'error',
+      title: 'Mattermost',
+      message: 'When "enableServerManagement: false" is specified in buildConfig.js,\n"defaultTeams" must have one team at least.'
+    });
+    app.exit();
+  }
   if (global.isDev) {
     installExtension.default(installExtension.REACT_DEVELOPER_TOOLS).
       then((name) => console.log(`Added Extension:  ${name}`)).