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src/automats/navigationAutomat.js

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+import { Automat } from 'react-automat';
+
+/**
+ * Navigation automat to store last visited delivery and article paths.
+ * Used to return users to their previous context when clicking main menu items.
+ * 
+ * State shape:
+ * {
+ *   lastDeliveryPath: string | null,  // Last visited delivery path (e.g., '/lieferung/19' or '/lieferung/neu')
+ *   lastArticleSku: string | null,   // Last visited article SKU
+ * }
+ */
+const initialState = {
+  lastDeliveryPath: null,
+  lastArticleSku: null,
+};
+
+const navigationAutomat = new Automat(
+  initialState,
+  {
+    /**
+     * Set the last visited delivery path.
+     * @param {string|null} path - Full path like '/lieferung/19' or '/lieferung/neu'
+     */
+    setLastDeliveryPath(path) {
+      navigationAutomat.setState({ lastDeliveryPath: path });
+    },
+
+    /**
+     * Set the last visited article SKU.
+     * @param {string|null} sku
+     */
+    setLastArticleSku(sku) {
+      navigationAutomat.setState({ lastArticleSku: sku });
+    },
+
+    /**
+     * Clear all navigation history.
+     */
+    clearNavigation() {
+      navigationAutomat.setState({
+        lastDeliveryPath: null,
+        lastArticleSku: null,
+      });
+    },
+  },
+  {
+    name: 'navigation',
+    persist: false,
+  }
+);
+
+export default navigationAutomat;
+export const { setLastDeliveryPath, setLastArticleSku, clearNavigation } = navigationAutomat.actions;