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