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

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

export interface Props {
    className?: string
    style?: 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>
    )
}