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

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

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

    render() {
        return (
            <svg
                id='buff'
                version="1.1"
                xmlns="http://www.w3.org/2000/svg"
                viewBox="0 0 300 300">
                <g>
                    <polygon class='buff-one' points='0,190    100,300   190,190'/>
                    <polygon class='buff-two' points='40,170    100,300   160,170'/>
                    <polygon class='buff-three' points='70,150    100,300   130,150'/>
                </g>
            </svg>
        );
    }

    componentDidMount() {
        this.animations.push(anime({
            targets: ['#buff .buff-one'],
            points: '0,190    100,10   190,190',
            easing: 'easeOutExpo',
            duration: TIMES.START_SKILL
        }));

        this.animations.push(anime({
            targets: ['#buff .buff-two'],
            points: '40,170    100,50   160,170',
            easing: 'easeOutExpo',
            duration: TIMES.START_SKILL,
        }));

        this.animations.push(anime({
            targets: ['#buff .buff-three'],
            points: '70,150    100,90   130,150',
            easing: 'easeOutExpo',
            duration: TIMES.START_SKILL,
        }));
    }

    // 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 = Buff;