import Group from 'zrender/src/container/Group';
import Line from 'zrender/src/graphic/shape/Line';
import BezierCurve from 'zrender/src/graphic/shape/BezierCurve';

/** 创建区段线集合*/
export default class ELines extends Group {
	constructor(model) {
		super();
		this.model = model;
		this.zlevel = model.zlevel;
		this.z = model.z;
		this._create(model);
	}

	_create(model) {
		/** 创建区段*/
		if (model && model.points.length > 1) {
			if (model.isCurve) {
				const shape = {};
				for (let i = 1; i < (model.points.length - 1); i++) {
					shape[`cpx${i}`] = model.points[i].x;
					shape[`cpy${i}`] = model.points[i].y;
				}

				shape[`x1`] = model.points[0].x;
				shape[`y1`] = model.points[0].y;
				shape[`x2`] = model.points[model.points.length - 1].x;
				shape[`y2`] = model.points[model.points.length - 1].y;

				this.add(new BezierCurve({
					isLine: true,
					zlevel: this.zlevel,
					progressive: model.progressive,
					z: this.z + 1,
					culling: true,
					shape: shape,
					style: {
						lineWidth: model.style.Section.sectionWidth,
						stroke: model.style.Section.sectionSpareColor,
						fillOpacity: 0
					}
				}));
			} else {
				for (let i = 0; i < (model.points.length - 1); i++) {
					this.add(new Line({
						isLine: true,
						zlevel: this.zlevel,
						progressive: model.progressive,
						z: this.z,
						shape: {
							x1: model.points[i].x,
							y1: model.points[i].y,
							x2: model.points[i + 1].x,
							y2: model.points[i + 1].y
						},
						style: {
							lineWidth: model.style.Section.sectionWidth,
							stroke: model.style.Section.sectionSpareColor
						}
					}));
				}
			}
		}
	}

	setStyle(styles) {
		this.eachChild((child) => {
			if (child.setStyle && child.isLine) {
				child.setStyle(styles);
			}
		});
	}

	animateStyle(loop, animates) {
		if (animates && animates.length) {
			this.eachChild((child) => {
				if (child.animateStyle && child.isLine) {
					let an = child.animateStyle(loop);
					animates.forEach(elem => {
						an = an.when(elem.time, elem.styles);
					});
					an.start();
				}
			});
		}
	}

	stopAnimation(flag) {
		this.eachChild((child) => {
			if (child.stopAnimation && child.isLine) {
				child.stopAnimation(flag);
			}
		});
	}

	setBorderVisible(isVisible) {
		this.lineBorder && this.lineBorder.hide();
		if (isVisible) {
			this.lineBorder && this.lineBorder.show();
		}
	}
}