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

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

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

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

    render() {
        return (
            <svg
                id="haste"
                class="skill-animation"
                version="1.1"
                xmlns="http://www.w3.org/2000/svg"
                viewBox="0 0 200 200">
                <filter id='hasteFilter'>
                    <feTurbulence type="turbulence"
                        baseFrequency="0"
                        numOctaves="1"
                        result="turbulence">
                    </feTurbulence>
                    <feDisplacementMap in2="turbulence" in="SourceGraphic" scale="1" xChannelSelector="R" yChannelSelector="G"></feDisplacementMap>
                </filter>
                <g filter='url("#hasteFilter")'>
                    <polygon points="10,190    100,10   190,190"/>
                    <polygon points="40,170    100,50   160,170"/>
                    <polygon points="70,150    100,90   130,150"/>
                </g>
            </svg>
        );
    }

    // transform: ['translate(0 0)', 'translate(0 -100)']

    componentDidMount() {
        this.animations.push(anime({
            targets: ['#haste'],
            opacity: [
                { value: 1, delay: TIMES.TARGET_DELAY_MS, duration: TIMES.TARGET_DURATION_MS * 0.2 },
                { value: 0, delay: TIMES.TARGET_DURATION_MS * 0.6, duration: TIMES.TARGET_DURATION_MS * 0.2 },
            ],
            easing: 'easeInOutSine',
        }));

        this.animations.push(anime({
            targets: ['#haste g'],
            stroke: [COLOURS.GREEN, COLOURS.RED],
            easing: 'easeInOutSine',
            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS * 0.75,
        }));

        this.animations.push(anime({
            targets: ['#hasteFilter feTurbulence', '#hasteFilter feDisplacementMap'],
            baseFrequency: 2,
            scale: 10,
            numOctaves: 5,
            easing: 'easeInOutSine',

            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS,
        }));
    }

    // 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();
        }
        this.props.animCb && this.props.animCb();
    }
}

module.exports = addState(Haste);