import React, { useCallback, useContext } from 'react';
import { ProductContext } from './ProductCard';

import styles from '../styles/styles.module.css';

export interface Props {
    className?: string;
    style?: React.CSSProperties;
}

export const ProductButtons = ( { className, style }: Props ) => {

    const { increaseBy, counter, maxCount } = useContext( ProductContext );

    const isMaxReached = useCallback(
        () => !!maxCount && counter === maxCount,
        [ counter, maxCount ],
    );

    return (
        <div
            className={ `${ styles.buttonsContainer } ${ className }` }
            style={ style }
        >
            <button
                className={ styles.buttonMinus }
                onClick={ () => increaseBy( -1 ) }
            >
                -
            </button>

            <div className={ styles.countLabel }> { counter } </div>

            <button
                className={ `${ styles.buttonAdd } ${ isMaxReached() && styles.disabled }` }
                onClick={ () => increaseBy( 1 ) }
            >
                +
            </button>
        </div>
    );

};