const Cycle = require("./cycle").Cycle;
const logger = require("./logger");

class CycleBuffer {
	constructor(purgeTime, fixed=false) {
		this.time = purgeTime;
		this.buffer=[];
		var th = this;
		this.onclear = function(sp) {};
		
		if(fixed) {
			this.fixed=true;
		}
		else {
			this.inter = setInterval(function() {
				th.purge();
			}, this.time);
		}
	}
	
	purge()
	{
		this.onclear(this);
		this.buffer.length=0;
	}
	
	add(cycle) {
		this.buffer.push(cycle);
		if(this.fixed && this.buffer.length>=this.time)
			this.buffer.shift();
	}
	
	all() {
		var ret=[];
		for(var i=0;i<this.buffer.length;i++)
		{
			ret.push(this.buffer[i]);
		}
		return ret;
	}
	close() {
		if(this.inter)
			clearInterval(this.inter);
		this.buffer.length=0;
	}
}

module.exports = CycleBuffer;