/*
 * Bolo - A stable and beautiful blogging system based in Solo.
 * Copyright (c) 2020, https://github.com/adlered
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
!function(t){t.fn.circleMagic=function(i){var n,o,s,e,h=!0,a=[],r=t.extend({color:"rgba(255,255,255,.5)",radius:10,density:.3,clearOffset:.2},i),l=this[0];function c(){n=l.clientWidth,o=l.clientHeight,l.height=o+"px",s.width=n,s.height=o}function d(){if(h)for(var t in e.clearRect(0,0,n,o),a)a[t].draw();requestAnimationFrame(d)}function p(){var t=this;function i(){t.pos.x=Math.random()*n,t.pos.y=o+100*Math.random(),t.alpha=.1+Math.random()*r.clearOffset,t.scale=.1+.3*Math.random(),t.speed=Math.random(),"random"===r.color?t.color="rgba("+Math.floor(255*Math.random())+", "+Math.floor(255*Math.random())+", "+Math.floor(255*Math.random())+", "+Math.random().toPrecision(2)+")":t.color=r.color}t.pos={},i(),this.draw=function(){t.alpha<=0&&i(),t.pos.y-=t.speed,t.alpha-=5e-4,e.beginPath(),e.arc(t.pos.x,t.pos.y,t.scale*r.radius,0,2*Math.PI,!1),e.fillStyle=t.color,e.fill(),e.closePath()}}!function(){n=l.offsetWidth,o=l.offsetHeight,t=document.createElement("canvas"),t.id="canvas",l.appendChild(t),t.parentElement.style.overflow="hidden",(s=document.getElementById("canvas")).width=n,s.height=o,s.style.position="absolute",s.style.left="0",s.style.bottom="0",e=s.getContext("2d");var t;for(var i=0;i<n*r.density;i++){var h=new p;a.push(h)}d()}(),window.addEventListener("resize",c,!1)}}($),"object"==typeof window&&(window.Ribbons=function(){var t=window,i=document.body,n=document.documentElement,o=function(){if(1===arguments.length){if(Array.isArray(arguments[0])){var t=Math.round(o(0,arguments[0].length-1));return arguments[0][t]}return o(0,arguments[0])}return 2===arguments.length?Math.random()*(arguments[1]-arguments[0])+arguments[0]:0},s=function(o){var s=Math.max(0,t.innerWidth||n.clientWidth||i.clientWidth||0),e=Math.max(0,t.innerHeight||n.clientHeight||i.clientHeight||0);return{width:s,height:e,ratio:s/e,centerx:s/2,centery:e/2,scrollx:Math.max(0,t.pageXOffset||n.scrollLeft||i.scrollLeft||0)-(n.clientLeft||0),scrolly:Math.max(0,t.pageYOffset||n.scrollTop||i.scrollTop||0)-(n.clientTop||0)}},e=function(t,i){this.x=0,this.y=0,this.set(t,i)};e.prototype={constructor:e,set:function(t,i){this.x=t||0,this.y=i||0},copy:function(t){return this.x=t.x||0,this.y=t.y||0,this},multiply:function(t,i){return this.x*=t||1,this.y*=i||1,this},divide:function(t,i){return this.x/=t||1,this.y/=i||1,this},add:function(t,i){return this.x+=t||0,this.y+=i||0,this},subtract:function(t,i){return this.x-=t||0,this.y-=i||0,this},clampX:function(t,i){return this.x=Math.max(t,Math.min(this.x,i)),this},clampY:function(t,i){return this.y=Math.max(t,Math.min(this.y,i)),this},flipX:function(){return this.x*=-1,this},flipY:function(){return this.y*=-1,this}};var h=function(t){this._canvas=null,this._context=null,this._sto=null,this._width=0,this._height=0,this._scroll=0,this._ribbons=[],this._options={colorSaturation:"80%",colorBrightness:"60%",colorAlpha:.65,colorCycleSpeed:6,verticalPosition:"center",horizontalSpeed:150,ribbonCount:3,strokeSize:0,parallaxAmount:-.5,animateSections:!0},this._onDraw=this._onDraw.bind(this),this._onResize=this._onResize.bind(this),this._onScroll=this._onScroll.bind(this),this.setOptions(t),this.init()};return h.prototype={constructor:h,setOptions:function(t){if("object"==typeof t)for(var i in t)t.hasOwnProperty(i)&&(this._options[i]=t[i])},init:function(){try{this._canvas=document.createElement("canvas"),this._canvas.style.display="block",this._canvas.style.position="fixed",this._canvas.style.margin="0",this._canvas.style.padding="0",this._canvas.style.border="0",this._canvas.style.outline="0",this._canvas.style.left="0",this._canvas.style.top="0",this._canvas.style.width="100%",this._canvas.style.height="100%",this._canvas.style["z-index"]="-1",this._onResize(),this._context=this._canvas.getContext("2d"),this._context.clearRect(0,0,this._width,this._height),this._context.globalAlpha=this._options.colorAlpha,window.addEventListener("resize",this._onResize),document.body.appendChild(this._canvas)}catch(t){return void console.warn("Canvas Context Error: "+t.toString())}this._onDraw()},addRibbon:function(){var t=Math.round(o(1,9))>5?"right":"left",i=1e3,n=this._width+200,s=0,h=0,a="right"===t?-200:n,r=Math.round(o(0,this._height));/^(top|min)$/i.test(this._options.verticalPosition)?r=200:/^(middle|center)$/i.test(this._options.verticalPosition)?r=this._height/2:/^(bottom|max)$/i.test(this._options.verticalPosition)&&(r=this._height-200);for(var l=[],c=new e(a,r),d=new e(a,r),p=null,_=Math.round(o(0,360)),u=0;!(i<=0);){if(i--,s=Math.round((1*Math.random()-.2)*this._options.horizontalSpeed),h=Math.round((1*Math.random()-.5)*(.25*this._height)),(p=new e).copy(d),"right"===t){if(p.add(s,h),d.x>=n)break}else if("left"===t&&(p.subtract(s,h),d.x<=-200))break;l.push({point1:new e(c.x,c.y),point2:new e(d.x,d.y),point3:p,color:_,delay:u,dir:t,alpha:0,phase:0}),c.copy(d),d.copy(p),u+=4,_+=this._options.colorCycleSpeed}this._ribbons.push(l)},_drawRibbonSection:function(t){if(t){if(t.phase>=1&&t.alpha<=0)return!0;if(t.delay<=0){if(t.phase+=.02,t.alpha=1*Math.sin(t.phase),t.alpha=t.alpha<=0?0:t.alpha,t.alpha=t.alpha>=1?1:t.alpha,this._options.animateSections){var i=.1*Math.sin(1+t.phase*Math.PI/2);"right"===t.dir?(t.point1.add(i,0),t.point2.add(i,0),t.point3.add(i,0)):(t.point1.subtract(i,0),t.point2.subtract(i,0),t.point3.subtract(i,0)),t.point1.add(0,i),t.point2.add(0,i),t.point3.add(0,i)}}else t.delay-=.5;var n=this._options.colorSaturation,o=this._options.colorBrightness,s="hsla("+t.color+", "+n+", "+o+", "+t.alpha+" )";this._context.save(),0!==this._options.parallaxAmount&&this._context.translate(0,this._scroll*this._options.parallaxAmount),this._context.beginPath(),this._context.moveTo(t.point1.x,t.point1.y),this._context.lineTo(t.point2.x,t.point2.y),this._context.lineTo(t.point3.x,t.point3.y),this._context.fillStyle=s,this._context.fill(),this._options.strokeSize>0&&(this._context.lineWidth=this._options.strokeSize,this._context.strokeStyle=s,this._context.lineCap="round",this._context.stroke()),this._context.restore()}return!1},_onDraw:function(){for(var t=0,i=this._ribbons.length;t<i;++t)this._ribbons[t]||this._ribbons.splice(t,1);this._context.clearRect(0,0,this._width,this._height);for(var n=0;n<this._ribbons.length;++n){for(var o=this._ribbons[n],s=o.length,e=0,h=0;h<s;++h)this._drawRibbonSection(o[h])&&e++;e>=s&&(this._ribbons[n]=null)}this._ribbons.length<this._options.ribbonCount&&this.addRibbon(),requestAnimationFrame(this._onDraw)},_onResize:function(t){var i=s();this._width=i.width,this._height=i.height,this._canvas&&(this._canvas.width=this._width,this._canvas.height=this._height,this._context&&(this._context.globalAlpha=this._options.colorAlpha))},_onScroll:function(t){var i=s();this._scroll=i.scrolly}},h}());
