/*!
 * VERSION: 1.6.0
 * DATE: 2018-08-27
 * UPDATES AND DOCS AT: http://greensock.com
 *
 * @license Copyright (c) 2008-2019, GreenSock. All rights reserved.
 * This work is subject to the terms at http://greensock.com/standard-license or for
 * Club GreenSock members, the software agreement that was issued with your membership.
 * 
 * @author: Jack Doyle, jack@greensock.com
 **/
/* eslint-disable */

import { _gsScope } from "./TweenLite.js";

export var RoundPropsPlugin = _gsScope._gsDefine.plugin({
				propName: "roundProps",
				version: "1.7.0",
				priority: -1,
				API: 2,

				//called when the tween renders for the first time. This is where initial values should be recorded and any setup routines should run.
				init: function(target, value, tween) {
					this._tween = tween;
					return true;
				}

			}),
			_getRoundFunc = function(v) { //pass in 0.1 get a function that'll round to the nearest tenth, or 5 to round to the closest 5, or 0.001 to the closest 1000th, etc.
				var p = v < 1 ? Math.pow(10, (v + "").length - 2) : 1; //to avoid floating point math errors (like 24 * 0.1 == 2.4000000000000004), we chop off at a specific number of decimal places (much faster than toFixed()
				return function(n) {
					return ((Math.round(n / v) * v * p) | 0) / p;
				};
			},
			_roundLinkedList = function(node, mod) {
				while (node) {
					if (!node.f && !node.blob) {
						node.m = mod || Math.round;
					}
					node = node._next;
				}
			},
			p = RoundPropsPlugin.prototype;

		p._onInitAllProps = function() {
			var tween = this._tween,
				rp = tween.vars.roundProps,
				lookup = {},
				rpt = tween._propLookup.roundProps,
				pt, next, i, p;
			if (typeof(rp) === "object" && !rp.push) {
				for (p in rp) {
					lookup[p] = _getRoundFunc(rp[p]);
				}
			} else {
				if (typeof(rp) === "string") {
					rp = rp.split(",");
				}
				i = rp.length;
				while (--i > -1) {
					lookup[rp[i]] = Math.round;
				}
			}

			for (p in lookup) {
				pt = tween._firstPT;
				while (pt) {
					next = pt._next; //record here, because it may get removed
					if (pt.pg) {
						pt.t._mod(lookup);
					} else if (pt.n === p) {
						if (pt.f === 2 && pt.t) { //a blob (text containing multiple numeric values)
							_roundLinkedList(pt.t._firstPT, lookup[p]);
						} else {
							this._add(pt.t, p, pt.s, pt.c, lookup[p]);
							//remove from linked list
							if (next) {
								next._prev = pt._prev;
							}
							if (pt._prev) {
								pt._prev._next = next;
							} else if (tween._firstPT === pt) {
								tween._firstPT = next;
							}
							pt._next = pt._prev = null;
							tween._propLookup[p] = rpt;
						}
					}
					pt = next;
				}
			}
			return false;
		};

		p._add = function(target, p, s, c, mod) {
			this._addTween(target, p, s, s + c, p, mod || Math.round);
			this._overwriteProps.push(p);
		};

export { RoundPropsPlugin as default };