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cart.js
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cart.js
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import shop from "@/api/shop";
export default {
namespaced: true,
state: {
// {id, quantity}
items: [],
checkoutStatus: null
},
getters: {
cartProducts (state, getters, rootState, rootGetters) {
return state.items.map(cartItem => {
const product = rootState.products.items.find(product => product.id === cartItem.id)
return {
title: product.title,
price: product.price,
quantity: cartItem.quantity
}
})
},
cartTotal (state, getters) {
return getters.cartProducts.reduce((total, product) => total + product.price * product.quantity, 0)
},
},
mutations: {
pushProductToCart (state, productId) {
state.items.push({
id: productId,
quantity: 1
})
},
incrementItemQuantity (state, cartItem) {
cartItem.quantity++
},
setCheckoutStatus (state, status) {
state.checkoutStatus = status
},
emptyCart (state) {
state.items = []
}
},
actions: {
addProductToCart({state, getters, commit, rootState, rootGetters}, product) {
if (rootGetters['products/productIsInStock'](product)) {
const cartItem = state.items.find(item => item.id === product.id)
if (!cartItem) {
commit('pushProductToCart', product.id)
} else {
commit('incrementItemQuantity', cartItem)
}
commit('products/decrementProductInventory', product, {root: true})
}
},
checkout({state, commit}) {
shop.buyProducts(
state.items,
() => {
commit('emptyCart')
commit('setCheckoutStatus', 'success')
},
() => {
commit('setCheckoutStatus', 'fail')
}
)
}
}
}