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udemy-react-course
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remove item

This commit is contained in:
Tyrel Souza 2022-09-26 13:37:48 -04:00
parent 701a9762cf
commit 5f88a979a7
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GPG Key ID: F3614B02ACBE438E
2 changed files with 30 additions and 5 deletions
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9
ordering/src/components/Cart/Cart.js
View File

@ -11,8 +11,13 @@ function Cart(props) {
const totalAmount = `$${cartCtx.totalAmount.toFixed(2)}`
const hasItems = cartCtx.items.length > 0
const cartItemRemoveHandler = id => {}
const cartItemAddHandler = items => {}
const cartItemRemoveHandler = (id) => {
cartCtx.removeItem(id)
}
const cartItemAddHandler = (item) => {
cartCtx.addItem({ ...item, amount: 1 })
}
const cartItems = (
<ul className={classes["cart-items"]}>

26
ordering/src/store/CartProvider.js
View File

@ -15,11 +15,10 @@ const cartReducer = (state, action) => {
)
const existingCartItem = state.items[existingCartItemIndex]
let updatedItems
if (existingCartItem)
{
if (existingCartItem) {
const updatedItem = {
...existingCartItem,
amount: existingCartItem.amount + action.item.amount
amount: existingCartItem.amount + action.item.amount,
}
updatedItems = [...state.items]
updatedItems[existingCartItemIndex] = updatedItem
@ -31,6 +30,27 @@ const cartReducer = (state, action) => {
items: updatedItems,
totalAmount: updatedTotalAmount,
}
} else if (action.type === "REMOVE") {
const existingCartItemIndex = state.items.findIndex(
(item) => item.id === action.id
)
const existingCartItem = state.items[existingCartItemIndex]
const updatedTotalAmount = state.totalAmount - existingCartItem.price
let updatedItems
if (existingCartItem.amount === 1) {
updatedItems = state.items.filter((item) => item.id !== action.id)
} else {
const updatedItem = {
...existingCartItem,
amount: existingCartItem.amount - 1,
}
updatedItems = [...state.items]
updatedItems[existingCartItemIndex] = updatedItem
}
return {
items: updatedItems,
totalAmount: updatedTotalAmount
}
}
return defaultCartState
}