const preact = require('preact');
const { Component } = require('preact');
const { connect } = require('preact-redux');
const anime = require('animejs').default;

const { TIMES, COLOURS } = require('../../constants');

const addState = connect(
    function receiveState(state) {
        const { animCb } = state;
        return { animCb };
    }
);

class Attack extends Component {
    constructor(props) {
        super();
        this.props = props;
        this.animations = [];
    }

    render() {
        return (
            <svg
                class='attack-anim'
                version="1.1"
                id="attack"
                xmlns="http://www.w3.org/2000/svg"
                viewBox="0 0 400 400">
                <g>
                    <rect x="0" y="400" transform="skewX(45)"
                        width="12" height="100" stroke-width="0" fill={COLOURS.RED}/>
                    <rect x="200"   y="400"
                        width="12" height="100" stroke-width="0" fill={COLOURS.RED}/>
                    <rect x="400" y="400" transform="skewX(-45)"
                        width="12" height="100" stroke-width="0" fill={COLOURS.RED}/>
                </g>
            </svg>
        );
    }

    componentDidMount() {
        this.animations.push(anime({
            targets: ['#attack rect'],
            easing: 'easeOutExpo',
            y: [400, 200],
            height: [100, 10, 0],
            width: [12, 5, 0],
            delay: () => anime.random(0, TIMES.TARGET_DURATION_MS / 4),
            duration: TIMES.TARGET_DURATION_MS * 5 / 4,
        }));
    }

    // this is necessary because
    // skipping / timing / unmounting race conditions
    // can cause the animations to cut short, this will ensure the values are reset
    // because preact will recycle all these components
    componentWillUnmount() {
        for (let i = this.animations.length - 1; i >= 0; i--) {
            this.animations[i].reset();
        }
    }
}

module.exports = addState(Attack);
