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

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

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

    render({ team }) {
        return (
            <svg
                class='skill-animation green'
                version="1.1"
                id="sustain"
                xmlns="http://www.w3.org/2000/svg"
                style={{ transform: team ? 'rotate3d(1, 0, 0, 180deg)' : '' }}
                viewBox="0 0 300 300">
                <filter id='sustainFilter'>
                    <feTurbulence type="turbulence" baseFrequency="0" numOctaves="1" result="turbulence"></feTurbulence>
                    <feDisplacementMap in2="turbulence" in="SourceGraphic" scale="1" xChannelSelector="R" yChannelSelector="G"></feDisplacementMap>
                </filter>
                <polyline
                    id="stageOne"
                    points='0 0'
                    style={{ filter: 'url("#sustainFilter")' }}
                />
                <polyline
                    id="stageTwo"
                    points='0 0'
                    style={{ filter: 'url("#sustainFilter")' }}
                />
                <polyline
                    id="stageThree"
                    points='0 0'
                    style={{ filter: 'url("#sustainFilter")' }}
                />
            </svg>
        );
    }

    componentDidMount() {
        this.animations.push(anime({
            targets: ['#sustain'],
            opacity: [
                { value: 1, delay: TIMES.TARGET_DELAY_MS, duration: TIMES.TARGET_DURATION_MS * 0.2 },
                { value: 0, delay: TIMES.TARGET_DURATION_MS * 0.8, duration: TIMES.TARGET_DURATION_MS * 0.2 },
            ],
            easing: 'easeInOutSine',
        }));

        this.animations.push(anime({
            targets: ['#stageOne'],
            points: '128,168 80,240 176,240 128,168',
            keyframes: [
                {
                    stroke: [COLOURS.GREEN, COLOURS.RED],
                    fill: [null, COLOURS.RED],
                    delay: TIMES.TARGET_DELAY_MS + TIMES.TARGET_DURATION_MS * 0.2,
                    duration: TIMES.TARGET_DURATION_MS * 0.6,
                    easing: 'easeInOutSine',
                },
            ],
            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS,
        }));

        this.animations.push(anime({
            targets: ['#stageTwo'],
            keyframes: [
                {
                    stroke: [COLOURS.GREEN, COLOURS.RED],
                    fill: [null, COLOURS.RED],
                    delay: TIMES.TARGET_DELAY_MS + TIMES.TARGET_DURATION_MS * 0.5,
                    duration: TIMES.TARGET_DURATION_MS * 0.6,
                    easing: 'easeInOutSine',
                },
            ],
            points: '176,240 212,216 128,96 44,216 80,240',
            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS,
        }));

        this.animations.push(anime({
            targets: ['#stageThree'],
            keyframes: [
                {
                    stroke: [COLOURS.GREEN, COLOURS.RED],
                    fill: [null, COLOURS.RED],
                    delay: TIMES.TARGET_DELAY_MS + TIMES.TARGET_DURATION_MS * 0.8,
                    duration: TIMES.TARGET_DURATION_MS * 0.4,
                    easing: 'easeInOutSine',
                },
            ],
            points: '212,216 248,192 128,24 8,192 44,216',
            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS,
        }));

        this.animations.push(anime({
            targets: ['#sustainFilter feTurbulence', '#sustainFilter feDisplacementMap'],
            baseFrequency: 2,
            scale: 10,
            numOctaves: 5,
            easing: 'easeOutSine',
            delay: TIMES.TARGET_DELAY_MS + TIMES.TARGET_DURATION_MS * 0.4,
            duration: TIMES.TARGET_DURATION_MS * 0.3 + TIMES.POST_SKILL_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();
        }
    }
}

module.exports = Sustain;
