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							- export default class Sparkline {
 
-   constructor(element, options = {}) {
 
-     this.element = element;
 
-     this.options = { ...Sparkline.options, ...options };
 
-     init: {
 
-       this.element.innerHTML = "<canvas></canvas>";
 
-       this.canvas = this.element.firstChild;
 
-       this.context = this.canvas.getContext("2d");
 
-       this.ratio = window.devicePixelRatio || 1;
 
-       if (this.options.tooltip) {
 
-         this.canvas.style.position = "relative";
 
-         this.canvas.addEventListener('mousemove', e => {
 
-           const x = e.offsetX || e.layerX || 0;
 
-           const delta = ((this.options.width - this.options.dotRadius * 2) / (this._points.length - 1));
 
-           const index = minmax(0, Math.round((x - this.options.dotRadius) / delta), this._points.length - 1);
 
-           this.canvas.title = this.options.tooltip(this._points[index], index, this._points);
 
-         }, false);
 
-       }
 
-     }
 
-   }
 
-   set points(points) {
 
-     this.draw(points);
 
-   }
 
-   get points() {
 
-     return this._points;
 
-   }
 
-   draw(points = []) {
 
-     this._points = points;
 
-     this.canvas.width = this.options.width * this.ratio;
 
-     this.canvas.style.width = `${this.options.width}px`;
 
-     const pxHeight = this.options.height || this.element.offsetHeight;
 
-     this.canvas.height = pxHeight * this.ratio;
 
-     this.canvas.style.height = `${pxHeight}px`;
 
-     const lineWidth = this.options.lineWidth * this.ratio;
 
-     const offsetX = Math.max(this.options.dotRadius * this.ratio, lineWidth / 2);
 
-     const offsetY = Math.max(this.options.dotRadius * this.ratio, lineWidth / 2);
 
-     const width = this.canvas.width - offsetX * 2;
 
-     const height = this.canvas.height - offsetY * 2;
 
-     const minValue = Math.min.apply(Math, points);
 
-     const maxValue = Math.max.apply(Math, points);
 
-     const bottomValue = this.options.minValue != undefined ? this.options.minValue : Math.min(minValue, this.options.maxMinValue != undefined ? this.options.maxMinValue : minValue);
 
-     const topValue = this.options.maxValue != undefined ? this.options.maxValue : Math.max(maxValue, this.options.minMaxValue != undefined ? this.options.minMaxValue : maxValue);
 
-     let minX = offsetX;
 
-     let maxX = offsetX;
 
-     let x = offsetX;
 
-     const y = index => (topValue === bottomValue)
 
-       ? offsetY + height / 2
 
-       : (offsetY + height) - ((points[index] - bottomValue) / (topValue - bottomValue)) * height;
 
-     const delta = width / (points.length - 1);
 
-     const line = (style, x, y) => {
 
-       if (!style) return;
 
-       this.context.save();
 
-       this.context.strokeStyle = style.color || 'black';
 
-       this.context.lineWidth = (style.width || 1) * this.ratio;
 
-       this.context.globalAlpha = style.alpha || 1;
 
-       this.context.beginPath();
 
-       this.context.moveTo(style.direction != 'right' ? offsetX : x, y);
 
-       this.context.lineTo(style.direction != 'left' ? width + offsetX : x, y);
 
-       this.context.stroke();
 
-       this.context.restore();
 
-     }
 
-     const dot = (color, lineStyle, x, y) => {
 
-       this.context.beginPath();
 
-       this.context.fillStyle = color;
 
-       this.context.arc(x, y, this.options.dotRadius * this.ratio, 0, Math.PI * 2, false);
 
-       this.context.fill();
 
-       line(lineStyle, x, y);
 
-     }
 
-     this.context.save();
 
-     this.context.strokeStyle = this.options.lineColor;
 
-     this.context.fillStyle = this.options.lineColor;
 
-     this.context.lineWidth = lineWidth;
 
-     this.context.lineCap = 'round';
 
-     this.context.lineJoin = 'round';
 
-     if (this.options.fillBelow && points.length > 1) {
 
-       this.context.save();
 
-       this.context.beginPath();
 
-       this.context.moveTo(x, y(0));
 
-       for (let i = 1; i < points.length; i++) {
 
-         x += delta;
 
-         minX = points[i] == minValue ? x : minX;
 
-         maxX = points[i] == maxValue ? x : maxX;
 
-         this.context.lineTo(x, y(i));
 
-       }
 
-       this.context.lineTo(width + offsetX, height + offsetY + lineWidth / 2);
 
-       this.context.lineTo(offsetX, height + offsetY + lineWidth / 2);
 
-       this.context.fill();
 
-       if (this.options.fillLighten > 0) {
 
-         this.context.fillStyle = 'white';
 
-         this.context.globalAlpha = this.options.fillLighten;
 
-         this.context.fill();
 
-         this.context.globalAlpha = 1;
 
-       } else if (this.options.fillLighten < 0) {
 
-         this.context.fillStyle = 'black';
 
-         this.context.globalAlpha = -this.options.fillLighten;
 
-         this.context.fill();
 
-       }
 
-       this.context.restore();
 
-     }
 
-     x = offsetX;
 
-     this.context.beginPath();
 
-     this.context.moveTo(x, y(0));
 
-     for (let i = 1; i < points.length; i++) {
 
-       x += delta;
 
-       this.context.lineTo(x, y(i));
 
-     }
 
-     this.context.stroke();
 
-     this.context.restore();
 
-     line(this.options.bottomLine, 0, offsetY);
 
-     line(this.options.topLine, 0, height + offsetY + lineWidth / 2);
 
-     dot(this.options.startColor, this.options.startLine, offsetX + (points.length == 1 ? width / 2 : 0), y(0));
 
-     dot(this.options.endColor, this.options.endLine, offsetX + (points.length == 1 ? width / 2 : width), y(points.length - 1));
 
-     dot(this.options.minColor, this.options.minLine, minX + (points.length == 1 ? width / 2 : 0), y(points.indexOf(minValue)));
 
-     dot(this.options.maxColor, this.options.maxLine, maxX + (points.length == 1 ? width / 2 : 0), y(points.indexOf(maxValue)));
 
-   }
 
-   static init(element, options) {
 
-     return new Sparkline(element, options);
 
-   }
 
-   static draw(element, points, options) {
 
-     const sparkline = new Sparkline(element, options);
 
-     sparkline.draw(points);
 
-     return sparkline;
 
-   }
 
- }
 
- Sparkline.options = {
 
-   width: 100,
 
-   height: null,
 
-   lineColor: "black",
 
-   lineWidth: 1.5,
 
-   startColor: "transparent",
 
-   endColor: "black",
 
-   maxColor: "transparent",
 
-   minColor: "transparent",
 
-   minValue: null,
 
-   maxValue: null,
 
-   minMaxValue: null,
 
-   maxMinValue: null,
 
-   dotRadius: 2.5,
 
-   tooltip: null,
 
-   fillBelow: true,
 
-   fillLighten: 0.5,
 
-   startLine: false,
 
-   endLine: false,
 
-   minLine: false,
 
-   maxLine: false,
 
-   bottomLine: false,
 
-   topLine: false,
 
-   averageLine: false
 
- };
 
- function minmax(a, b, c) {
 
-   return Math.max(a, Math.min(b, c));
 
- }
 
 
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