From b837545df65a31ba5dac154644c359c2a55d1531 Mon Sep 17 00:00:00 2001
From: Christoph Schlosser <christoph@linux.com>
Date: Fri, 2 Mar 2018 21:34:02 +0100
Subject: Add config changed notification

---
 package.json     |  3 ++-
 src/extension.ts | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index cb5db10..0ba91da 100644
--- a/package.json
+++ b/package.json
@@ -193,7 +193,8 @@
     "test": "npm run compile && node ./node_modules/vscode/bin/test"
   },
   "dependencies": {
-    "moment": "^2.20.1"
+    "moment": "^2.20.1",
+    "opn": "^5.2.0"
   },
   "devDependencies": {
     "@types/mocha": "^2.2.48",
diff --git a/src/extension.ts b/src/extension.ts
index a5510dc..52ecbf8 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -1,13 +1,38 @@
 "use strict";
 // The module 'vscode' contains the VS Code extensibility API
 // Import the module and reference it with the alias vscode in your code below
+import * as opn from "opn";
 import * as vscode from "vscode";
 import CodeParserController from "./CodeParserController";
 
+enum ConfigChangedNotificationOptions {
+    CHANGED = "What's changed",
+    HIDE = "Don't show me again",
+    GLOBAL_STORAGE_KEY = "doxdocgen_hide_config_changed_notification",
+}
+
 // this method is called when your extension is activated
 // your extension is activated the very first time the command is executed
 export function activate(context: vscode.ExtensionContext) {
     const parser = new CodeParserController();
 
     context.subscriptions.push(parser);
+
+    let notificationHideThenable: Thenable<string>;
+    const active = context.globalState.get<string>(ConfigChangedNotificationOptions.GLOBAL_STORAGE_KEY);
+    if (active === undefined || active !== "false") {
+        // tslint:disable-next-line:max-line-length
+        notificationHideThenable = vscode.window.showWarningMessage("DoxDocGen: Config keys have changed. Please check your config!", ConfigChangedNotificationOptions.CHANGED, ConfigChangedNotificationOptions.HIDE);
+    }
+
+    if (notificationHideThenable !== undefined) {
+        notificationHideThenable.then((action) => {
+            if (action === ConfigChangedNotificationOptions.CHANGED) {
+                // tslint:disable-next-line:max-line-length
+                opn("https://github.com/christophschlosser/doxdocgen/commit/1c844758719d8dc7d538585bb4393565e5629e84#diff-b9cfc7f2cdf78a7f4b91a753d10865a2");
+            } else if (action === ConfigChangedNotificationOptions.HIDE) {
+                context.globalState.update(ConfigChangedNotificationOptions.GLOBAL_STORAGE_KEY, "false");
+            }
+        });
+    }
 }
-- 
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