var jsonfile = require('jsonfile')

var file = 'data/BTC_ETH.json';

var analyze = {
	averagePrice: function(prices){
		var totalPrice = 0;
		for(price of prices){
			totalPrice+=price;
		}
		return totalPrice / prices.length;
	},
	lowestPrice: function(prices){
		var lowest = 9999999;
		for(price of prices){
			if(price < lowest){
				lowest = price;
			}
		}
		return lowest;
	},
	highestPrice: function(prices){
		var highest = 0;
		for(price of prices){
			if(price > highest){
				highest = price;
			}
		}
		return highest;
	},
	support: function(prices){
		var termCounter = 0, supportPrice = prices[0], supportPrices = [];
		for(price of prices){
			if(price < supportPrice){
				supportPrice = price;
				termCounter = 0;
			} else{
				termCounter++;
				if(termCounter == 5000){
					supportPrices.push(supportPrice);
					termCounter = 0;
					supportPrice = price;
				}
			}
		}
		return supportPrices;
	},
	resistance: function(prices){
		var termCounter = 0, resistance = prices[0], reistancePrices = [];
		for(price of prices){
			if(price > resistancePrice){

			}
		}

	},
	all: function(prices){
		console.log("average price is " + analyze.averagePrice(prices));
		console.log("lowest price is " + analyze.lowestPrice(prices));
		console.log("highest price is " + analyze.highestPrice(prices));
		console.log("support prices are at " + analyze.support(prices));
	}
}


function readData(obj){
	console.log("file is " + obj.length + " candles long");

	var Xcandle = 0;
	var prices = [];
	var averagePrice;

	for(candle of obj){
		Xcandle++;
		prices.push(candle.c);
	}

	analyze.all(prices);
	console.log("done, modeled " + Xcandle + " candles.");
}

jsonfile.readFile(file, function(err, obj) {
	console.log(err);
	readData(obj);
})