cob-product-card
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text/typescript
import { useEffect, useRef, useState } from "react"
import { InitialValues, onChangeArgs, Product } from '../interfaces/interfaces';
interface useProductArgs {
product: Product;
onChange?: (args: onChangeArgs) => void;
value?: number;
initialValues?: InitialValues
}
const useProduct = ({ onChange, product, value = 0, initialValues }: useProductArgs) => {
const [counter, setCounter] = useState<number>(initialValues?.count || value)
const isMounted = useRef(false)
const reset = () => {
setCounter(initialValues?.count || value)
}
const increaseBy = (value: number) => {
let newValue = Math.max(counter + value, 0)
// console.log(initialValues?.maxCount, newValue)
if (initialValues?.maxCount) {
newValue = Math.min(newValue, initialValues.maxCount)
}
setCounter(newValue)
onChange && onChange({ count: newValue, product });
}
useEffect(() => {
if (!isMounted.current) return
setCounter(value)
}, [value])
useEffect(() => {
isMounted.current = true
}, [])
return {
counter,
isMaxCountReached: !!initialValues?.count && initialValues.maxCount === counter,
maxCount: initialValues?.maxCount,
increaseBy,
reset
}
}
export default useProduct