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/* eslint no-console: 0 */

import { axisBottom, axisRight } from 'd3-axis';

import { scaleLinear } from 'd3-scale';

import { select } from 'd3-selection';

import createScatterplot from '../src';

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

const parentWrapper = document.querySelector('#parent-wrapper');

const canvasWrapper = document.querySelector('#canvas-wrapper');

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 exampleBg = document.querySelector('#example-axes');

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

exampleBg.removeAttribute('href');

const xDomain = [0, 42];

const yDomain = [0, 4.2];

const xScale = scaleLinear().domain(xDomain);

const yScale = scaleLinear().domain(yDomain);

const xAxis = axisBottom(xScale);

const yAxis = axisRight(yScale);

const axisContainer = select(parentWrapper).append('svg');

const xAxisContainer = axisContainer.append('g');

const yAxisContainer = axisContainer.append('g');

const xAxisPadding = 20;

const yAxisPadding = 40;

axisContainer.node().style.position = 'absolute';

axisContainer.node().style.top = 0;

axisContainer.node().style.left = 0;

axisContainer.node().style.width = '100%';

axisContainer.node().style.height = '100%';

axisContainer.node().style.pointerEvents = 'none';

canvasWrapper.style.right = `${yAxisPadding}px`;

canvasWrapper.style.bottom = `${xAxisPadding}px`;

let { width, height } = canvasWrapper.getBoundingClientRect();

xAxisContainer.attr('transform', `translate(0, ${height})`).call(xAxis);

yAxisContainer.attr('transform', `translate(${width}, 0)`).call(yAxis);

// Render grid

xAxis.tickSizeInner(-height);

yAxis.tickSizeInner(-width);

let points = [];

let numPoints = 100000;

let pointSize = 2;

let opacity = 0.5;

let selection = [];

const selectHandler = ({ points: selectedPoints }) => {

console.log('Selected:', selectedPoints);

selection = selectedPoints;

if (selection.length === 1) {

const point = points[selection[0]];

console.log(

`X: ${point[0]}\nY: ${point[1]}\nCategory: ${point[2]}\nValue: ${point[3]}`

);

}

};

const deselectHandler = () => {

console.log('Deselected:', selection);

selection = [];

};

const scatterplot = createScatterplot({

canvas,

pointSize,

xScale,

yScale,

showReticle: true,

lassoInitiator: true,

});

checkSupport(scatterplot);

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

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

scatterplot.subscribe('select', selectHandler);

scatterplot.subscribe('deselect', deselectHandler);

scatterplot.subscribe('view', (event) => {

xAxisContainer.call(xAxis.scale(event.xScale));

yAxisContainer.call(yAxis.scale(event.yScale));

});

scatterplot.subscribe(

'init',

() => {

xAxisContainer.call(xAxis.scale(scatterplot.get('xScale')));

yAxisContainer.call(yAxis.scale(scatterplot.get('yScale')));

},

1

);

const resizeHandler = () => {

({ width, height } = canvasWrapper.getBoundingClientRect());

xAxisContainer.attr('transform', `translate(0, ${height})`).call(xAxis);

yAxisContainer.attr('transform', `translate(${width}, 0)`).call(yAxis);

// Render grid

xAxis.tickSizeInner(-height);

yAxis.tickSizeInner(-width);

};

window.addEventListener('resize', resizeHandler);

window.addEventListener('orientationchange', resizeHandler);

const generatePoints = (num) =>

new Array(num).fill().map(() => [

-1 + Math.random() * 2, // x

-1 + Math.random() * 2, // y

Math.round(Math.random() * 9), // category

Math.random(), // value

]);

const setNumPoint = (newNumPoints) => {

numPoints = newNumPoints;

numPointsEl.value = numPoints;

numPointsValEl.innerHTML = numPoints;

points = generatePoints(numPoints);

scatterplot.draw(points);

};

const numPointsInputHandler = (event) => {

numPointsValEl.innerHTML = `${+event.target

.value} <em>release to redraw</em>`;

};

numPointsEl.addEventListener('input', numPointsInputHandler);

const numPointsChangeHandler = (event) => setNumPoint(+event.target.value);

numPointsEl.addEventListener('change', numPointsChangeHandler);

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 setOpacity = (newOpacity) => {

opacity = newOpacity;

opacityEl.value = opacity;

opacityValEl.innerHTML = opacity;

scatterplot.set({ opacity });

};

const opacityInputHandler = (event) => setOpacity(+event.target.value);

opacityEl.addEventListener('input', opacityInputHandler);

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);

scatterplot.set({

colorBy: 'category',

pointColor: [

'#d192b7',

'#6fb2e4',

'#eecb62',

'#56bf92',

'#dca237',

'#3a84cc',

'#c76526',

],

});

setPointSize(pointSize);

setOpacity(opacity);

setNumPoint(numPoints);