const needle = require("needle");



class UPSdisplay {
	constructor(slaveConfig, msgInterface){
		this.config = slaveConfig;
		this.messageInterface = msgInterface;
		this.historicalTicks = [];
		setInterval(() => {
			this.messageInterface("/silent-command game.write_file('UPSdisplay.txt', game.tick, true, 0)");
		},1000);
		setInterval(() => {
			if(this.historicalTicks && this.historicalTicks[0]){
				let timePeriod = this.historicalTicks[this.historicalTicks.length-1].timestamp - this.historicalTicks[0].timestamp;
				let ticksInPeriod = this.historicalTicks[this.historicalTicks.length-1].tick - this.historicalTicks[0].tick;
				let UPS = Math.round(ticksInPeriod / (timePeriod/1000));
				// console.log("UPS: " + UPS);
				try{
					needle.post(this.config.masterIP+':'+this.config.masterPort+'/api/editSlaveMeta', {instanceID: this.config.unique, password: this.config.clientPassword, meta: {UPS:UPS}}, function(err, resp) {
						// success?
					});
				} catch (err){
					console.log(err);
				}
			}
		}, 10000);
		this.messageInterface("/silent-command game.print('UPSdisplay enabled')");
	}
	scriptOutput(data){
		if (data !== null && !isNaN(data)){
			// console.log("Tick: " + data);
			this.historicalTicks[this.historicalTicks.length] = {tick:Number(data), timestamp:Date.now()};
			if(this.historicalTicks.length > 30){
				this.historicalTicks.shift(); // delete last element in array (position 0);
			}
		}
	}
}
module.exports = UPSdisplay;