My useReducer does not work

Question

I’m making a shopping cart with useReducer and I can’t change the inCard for true and the qty to add one more to each click.

What am I doing wrong?

import React, { useReducer } from 'react'
import CartContext from './CartContext'
import CartReducer from './CartReducer';
import { ADD_TO_CART, REMOVE_ITEM, SHOW_HIDE_CART } from '../Types'
export default function CartState({children}) {
    const initialValues={
        showCart:false,
        cartItems:[],
    }
    let [state, dispatch] = useReducer(CartReducer, initialValues);
    function addToCart(item){
        dispatch({type:ADD_TO_CART, payload:item, ...item.inCart===true})
        
    }
    function showHideCart(){
        dispatch({type:SHOW_HIDE_CART})
    }
    function removeItem(id){
        dispatch({type:REMOVE_ITEM, payload:id})
    }
    return (
        <CartContext.Provider value={{
            showCart:state.showCart,
            cartItems:state.cartItems,
            addToCart,
            showHideCart,
            removeItem,
        }}>{children}</CartContext.Provider>
    )
}

import { ADD_TO_CART, REMOVE_ITEM, SHOW_HIDE_CART } from '../Types'
export default function CartReducer(state, action) {
    switch(action.type){
        case SHOW_HIDE_CART:{
            return{
                ...state,
                showCart:!state.showCart
            }
        }
        case ADD_TO_CART:{
            let productsCopy=[...state.cartItems];
            productsCopy.forEach((item)=>{
                if(item._id===action.payload){
                     item.qty = item.qty + 1;
                     item.inCart = true;
                }
                })
            return{
                ...state,
                cartItems:[...productsCopy, action.payload],
            }
        }
        case REMOVE_ITEM:{
            return{
                ...state,
                cartItems:state.cartItems.filter((item)=>item._id!==action.payload)
            }
        }
        default:{
            return state
        }
    }
}

It’s like this in Context:

{
  "value": {
    "showCart": false,
    "cartItems": [
      {
        "id": "1",
        "name": "MOLETOM VERMELHO CABRAL",
        "image": "./assets/moletomVermelho.jpg",
        "zomImage": "./assets/moletomVermelhoZom.jpg",
        "previousPrice": 345.9,
        "currentPrice": 242.1,
        "inCart": false,
        "qty": 0,
        "colors": "[{…}, {…}]",
        "size": "{g: true, m: false, p: true, xg: true}"
      }
    ],
    "addToCart": "ƒ addToCart() {}",
    "showHideCart": "ƒ showHideCart() {}",
    "removeItem": "ƒ removeItem() {}"
  },
  "children": "<App />"
}