Create state.js

state.js

@@ -0,0 +1,22 @@
+// state.js - Manages Application State
+
+import { MATERIALS_CONFIG, RECIPES_CONFIG } from './config.js';
+
+export let appState = {};
+
+export function saveState() {
+    localStorage.setItem('antennaTrackerState', JSON.stringify(appState));
+}
+
+export function loadState() {
+    const savedState = localStorage.getItem('antennaTrackerState');
+    if (savedState) {
+        Object.assign(appState, JSON.parse(savedState));
+        appState.productRecipes = RECIPES_CONFIG; // Always use latest recipes from config
+    } else {
+        // First time load: create a deep copy from config
+        appState.materials = JSON.parse(JSON.stringify(MATERIALS_CONFIG));
+        appState.productRecipes = RECIPES_CONFIG;
+        appState.productionLog = [];
+    }
+}