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updated toggleCartItemQuantity function #68

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updated toggleCartItemQuantity function #68

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101 changes: 65 additions & 36 deletions context/StateContext.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import React, { createContext, useContext, useState, useEffect } from 'react';
import { toast } from 'react-hot-toast';
import React, { createContext, useContext, useState, useEffect } from "react";
import { toast } from "react-hot-toast";

const Context = createContext();

Expand All @@ -14,67 +14,96 @@ export const StateContext = ({ children }) => {
let index;

const onAdd = (product, quantity) => {
const checkProductInCart = cartItems.find((item) => item._id === product._id);

setTotalPrice((prevTotalPrice) => prevTotalPrice + product.price * quantity);
const checkProductInCart = cartItems.find(
(item) => item._id === product._id
);

setTotalPrice(
(prevTotalPrice) => prevTotalPrice + product.price * quantity
);
setTotalQuantities((prevTotalQuantities) => prevTotalQuantities + quantity);
if(checkProductInCart) {

if (checkProductInCart) {
const updatedCartItems = cartItems.map((cartProduct) => {
if(cartProduct._id === product._id) return {
...cartProduct,
quantity: cartProduct.quantity + quantity
}
})
if (cartProduct._id === product._id)
return {
...cartProduct,
quantity: cartProduct.quantity + quantity,
};
});

setCartItems(updatedCartItems);
} else {
product.quantity = quantity;

setCartItems([...cartItems, { ...product }]);
}

toast.success(`${qty} ${product.name} added to the cart.`);
}
};

const onRemove = (product) => {
foundProduct = cartItems.find((item) => item._id === product._id);
const newCartItems = cartItems.filter((item) => item._id !== product._id);

setTotalPrice((prevTotalPrice) => prevTotalPrice -foundProduct.price * foundProduct.quantity);
setTotalQuantities(prevTotalQuantities => prevTotalQuantities - foundProduct.quantity);
setTotalPrice(
(prevTotalPrice) =>
prevTotalPrice - foundProduct.price * foundProduct.quantity
);
setTotalQuantities(
(prevTotalQuantities) => prevTotalQuantities - foundProduct.quantity
);
setCartItems(newCartItems);
}
};

const toggleCartItemQuanitity = (id, value) => {
foundProduct = cartItems.find((item) => item._id === id)
foundProduct = cartItems.find((item) => item._id === id);
index = cartItems.findIndex((product) => product._id === id);
const newCartItems = cartItems.filter((item) => item._id !== id)

if(value === 'inc') {
setCartItems([...newCartItems, { ...foundProduct, quantity: foundProduct.quantity + 1 } ]);
setTotalPrice((prevTotalPrice) => prevTotalPrice + foundProduct.price)
setTotalQuantities(prevTotalQuantities => prevTotalQuantities + 1)
} else if(value === 'dec') {
if (value === "inc") {
setCartItems((prev) =>
prev.map((item) => {
if (item._id === id) {
return {
...item,
quantity: item.quantity + 1,
};
}
return item;
})
);
setTotalPrice((prevTotalPrice) => prevTotalPrice + foundProduct.price);
setTotalQuantities((prevTotalQuantities) => prevTotalQuantities + 1);
} else if (value === "dec") {
if (foundProduct.quantity > 1) {
setCartItems([...newCartItems, { ...foundProduct, quantity: foundProduct.quantity - 1 } ]);
setTotalPrice((prevTotalPrice) => prevTotalPrice - foundProduct.price)
setTotalQuantities(prevTotalQuantities => prevTotalQuantities - 1)
setCartItems((prev) =>
prev.map((item) => {
if (item._id === id) {
return {
...item,
quantity: item.quantity - 1,
};
}
return item;
})
);
setTotalPrice((prevTotalPrice) => prevTotalPrice - foundProduct.price);
setTotalQuantities((prevTotalQuantities) => prevTotalQuantities - 1);
}
}
}
};

const incQty = () => {
setQty((prevQty) => prevQty + 1);
}
};

const decQty = () => {
setQty((prevQty) => {
if(prevQty - 1 < 1) return 1;
if (prevQty - 1 < 1) return 1;

return prevQty - 1;
});
}
};

return (
<Context.Provider
Expand All @@ -92,12 +121,12 @@ export const StateContext = ({ children }) => {
onRemove,
setCartItems,
setTotalPrice,
setTotalQuantities
setTotalQuantities,
}}
>
{children}
</Context.Provider>
)
}
);
};

export const useStateContext = () => useContext(Context);
export const useStateContext = () => useContext(Context);