feat: Use store to save user's recents between app runs

app/macos/main.js

@@ -8,6 +8,10 @@ const {
 } = require("electron");
 const { LRUMap } = require("lru_map");
 
+// Create store to save user's recents
+const Store = require('electron-store');
+const store = new Store();
+
 const robot = require("robotjs");
 
 // This is the npm package `open`, it is used here to open all links in an external browser
@@ -23,8 +27,15 @@ const emojis = require("./src/emojis");
 let tray = undefined;
 let window = undefined;
 
-// Let's preset our LRU Map that we'll use to keep track of recent uses
-let lruMap = new LRUMap(10);
+// Let's fetch our previous LRU Map, or set it
+let lruMap;
+if (store.has("lruMap")) {
+  lruMap = new LRUMap(10, store.get("lruMap").map(it => {
+    return [it.key, it.value];
+  }));
+} else {
+  lruMap = new LRUMap(10);
+}
 
 // Hide the menu and dev tools (for production build)
 Menu.setApplicationMenu(null);
@@ -140,6 +151,9 @@ ipcMain.handle("getEmojisForSearchString", (_event, arg) => {
 // When we get a signal to select an emoji, update our LRU Map
 ipcMain.on("selectEmoji", (_event, arg) => {
   lruMap.set(arg, "");
+
+  // Save our current lruMap's JSON representation to the store
+  store.set("lruMap", lruMap.toJSON());
 });
 
 const toggleWindow = () => {

app/macos/package.json

@@ -26,6 +26,7 @@
   "homepage": "https://github.com/virejdasani/Geniemoji#readme",
   "dependencies": {
     "electron": "^12.0.4",
+    "electron-store": "^8.0.0",
     "lru_map": "^0.4.1",
     "open": "^8.0.9",
     "robotjs": "^0.6.0"