Cart Redux Slice

Redux slice managing cart state: addToCart, removeFromCart, clearCart, totals calculation, qty increment/decrement.

import { createSlice } from "@reduxjs/toolkit"
import { addLocalStorageCart, getLocalStorageCart } from '../../utils/localStorage'

const cartItems = getLocalStorageCart()

const initialState = {
    cartItems: cartItems ? cartItems : [],
    totalCount: 0,
    totalAmount: 0,
    subTotal: 0,
    tax: 0
}

export const cartSlice = createSlice({
    name: 'cart',
    initialState,
    reducers: {
        clearCart: (state) => {
            state.cartItems = []
        },
        addToCart: (state, action) => {
            let cartIndex = state.cartItems.findIndex((item) => item.id === action.payload.id)
            // Increasing the quantity of the product
            if (cartIndex >= 0) {
                if (state.cartItems[cartIndex].quantity < state.cartItems[cartIndex].stock) {
       

... (truncated -- full source via MCP)