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

    render() {
        return (
            <svg
                class='skill-animation'
                version="1.1"
                id="intercept"
                xmlns="http://www.w3.org/2000/svg"
                viewBox="0 0 128 128">
                <filter id='interceptFilter'>
                    <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(#interceptFilter)" stroke="none" fill={COLOURS.RED} >
                    <rect x='32' y="64" width="64" height="2" />
                    <rect x='48' y="32" width="32" height="2" />
                    <rect x='56' y="16" width="16" height="2" />
                </g>
            </svg>
        );
    }

    componentDidMount() {
        this.animations.push(anime({
            targets: ['#intercept'],
            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: ['#intercept'],
            transform: [
                `scale(1 1) ${this.props.player ? 'rotate(180)' : ''}`,
                `scale(5 5) ${this.props.player ? 'rotate(180)' : ''}`,
            ],
            strokeWidth: 0,

            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS,
            easing: 'easeInCubic',
            // direction: 'reverse',
        }));

        this.animations.push(anime({
            targets: ['#intercept rect'],
            y: 96,
            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS,
            easing: 'easeInCubic',
            // direction: 'reverse',
        }));

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

            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(Intercept);