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/* eslint no-console: 0 */

import { tableFromIPC } from 'apache-arrow';

import createScatterplot from '../src';

import { saveAsPng, checkSupport, showModal, closeModal } from './utils';

const CLASS_COLORS = [

'#FFFF00', // bright yellow

'#1CFFD9', // turrtoise

'#FF34FF', // pink/purple

'#FF4A46', // pale red

'#008941', // forrest green

'#1966FF', // dark blue

'#C00069', // violette

'#FFDBE5', // almost white

'#FF9900', // yellow

'#8148D5', // grass green

];

/**

* Load Embedding Example

*/

const whenData = fetch(

'https://storage.googleapis.com/flekschas/regl-scatterplot/cities.arrow'

);

/**

* Modal

*/

showModal('Loading...');

/**

* Add info to footer

*/

const footer = document.querySelector('#footer');

footer.classList.remove('hidden');

const infoContent = document.querySelector('#info-content');

infoContent.innerHTML = `

<p><a href="https://www.geonames.org/about.html" target="_blank">GeoNames – Cities Dataset</a> visualized in three: by the cities' geographic location, by the total population across contintents, and by the citie's latitude distribution.</p>

`;

const canvas = document.querySelector('#canvas');

const numPointsEl = document.querySelector('#num-points');

const numPointsValEl = document.querySelector('#num-points-value');

const pointSizeEl = document.querySelector('#point-size');

const pointSizeValEl = document.querySelector('#point-size-value');

const opacityEl = document.querySelector('#opacity');

const opacityValEl = document.querySelector('#opacity-value');

const clickLassoInitiatorEl = document.querySelector('#click-lasso-initiator');

const resetEl = document.querySelector('#reset');

const exportEl = document.querySelector('#export');

const exampleEl = document.querySelector('#example-transition');

exampleEl.setAttribute('class', 'active');

exampleEl.removeAttribute('href');

let pointSize = 1.5;

const scatterplot = createScatterplot({

canvas,

pointSize,

lassoOnLongPress: true,

});

checkSupport(scatterplot);

exportEl.addEventListener('click', () => saveAsPng(scatterplot));

console.log(`Scatterplot v${scatterplot.get('version')}`);

/**

* Disable num points and opacity setter because we work with fixed data

*/

numPointsEl.disabled = true;

opacityEl.disabled = true;

const setPointSize = (newPointSize) => {

pointSize = newPointSize;

pointSizeEl.value = pointSize;

pointSizeValEl.innerHTML = pointSize;

scatterplot.set({ pointSize });

};

const pointSizeInputHandler = (event) => setPointSize(+event.target.value);

pointSizeEl.addEventListener('input', pointSizeInputHandler);

const clickLassoInitiatorChangeHandler = (event) => {

scatterplot.set({

lassoInitiator: event.target.checked,

});

};

clickLassoInitiatorEl.addEventListener(

'change',

clickLassoInitiatorChangeHandler

);

clickLassoInitiatorEl.checked = scatterplot.get('lassoInitiator');

const resetClickHandler = () => {

scatterplot.reset();

};

resetEl.addEventListener('click', resetClickHandler);

setPointSize(1.5);

whenData

.then((data) => tableFromIPC(data))

.then((table) => {

closeModal();

const columnValues = table.data[0].children.map((data) => data.values);

const population = columnValues[columnValues.length - 2];

const continents = columnValues[columnValues.length - 1];

const staticOpacity = new Float32Array(population.length);

for (let i = 0; i < population.length; i++) {

staticOpacity[i] = 1;

}

numPointsValEl.innerHTML = table.numRows;

opacityValEl.innerHTML = 'Automatic';

scatterplot.draw({

x: columnValues[0],

y: columnValues[1],

z: continents,

w: population,

});

scatterplot.set({

colorBy: 'z',

pointColor: CLASS_COLORS,

opacityBy: 'w',

opacity: Array.from({ length: 10 }, (_, i) => 0.33 + (i / 9) * 0.33),

});

let i = 0;

const transitionPoints = () => {

i++;

const startCol = (i % 3) * 2;

scatterplot

.draw(

{

x: columnValues[startCol],

y: columnValues[startCol + 1],

z: continents,

w: [population, staticOpacity, staticOpacity][i % 3],

},

{

transition: true,

transitionDuration: 750,

transitionEasing: 'quadInOut',

}

)

.then(() => {

setTimeout(transitionPoints, 2500);

});

};

setTimeout(transitionPoints, 2500);

});