Cart store module.

frontend/modules/cartModule.js

@@ -0,0 +1,44 @@
+
+const updateLocalStorage = (key, value) => {
+  localStorage.setItem(key, JSON.stringify(value));
+}
+const getParsedFromLocalStorage = key => {
+  const value = localStorage.getItem(key);
+  try {
+    return JSON.parse(value)
+  } catch {
+    return null 
+  }
+}
+
+export default {
+  namespaced: true,
+  state: {
+    inventory: getParsedFromLocalStorage('inventory') || [],
+  },
+  getters: {
+    inventory: state => {
+      return state.inventory;
+    }
+  },
+  mutations: {
+    ADD_ITEM_TO_CART: (state, item) => {
+      state.inventory.push(item);
+
+      updateLocalStorage('inventory', state.inventory)
+    },
+    REMOVE_ITEM_FROM_CART: (state, item) => {
+      state.inventory = state.inventory.filter(i => i !== item)
+
+      updateLocalStorage('inventory', state.inventory)
+    }
+  },
+  actions: {
+    addItemToCart({ commit }, item) {
+      commit("ADD_ITEM_TO_CART", item);
+    },
+    removeItemFromCart({ commit }, item) {
+      commit('REMOVE_ITEM_FROM_CART', item)
+    }
+  }
+};