package it.luckyb.demo;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;

import org.json.JSONObject;

public class LuckyStatsApp {
	public final static String API = "http://luckyb.it/api";
	protected enum Color { GREEN, YELLOW, RED };
	protected class Bet {		
		protected double amount, result, payout;
		protected Color color;
		protected boolean isValid;
		private String binary;
		
		public Bet(JSONObject txo) {
			if (!txo.getString("type").equals("VALID_BET")) {
				isValid = false;
				return;
			}
			isValid = true;
			binary = txo.getString("binary_string");
			amount = txo.getDouble("bet_amount");
			result = txo.getDouble("multiplier_obtained");
			payout = txo.getDouble("payout_amount");
			color = Color.valueOf(txo.getString("game_name").toUpperCase(Locale.US));
		}	
		public String mult() {
			return String.format((result < 2 && result != 1.0) ? "%-1.1f" : "%-1.0f", result);
		}
		public int slot() {
			int r = 0;
			for (char c : binary.toCharArray())
				if (c == '0') r -= 1; else r += 1;
			r/=2;
			return r<0?r*-1:r;
		}
	}

	private String address;

	private LuckyStatsApp(String address) { this.address = address; }
	private JSONObject getData() throws IOException {
		StringBuilder sb = new StringBuilder();
		HttpURLConnection conn = (HttpURLConnection)(new URL(API + "/getbetsbyaddress/" + address).openConnection());
		conn.connect();
		InputStream is = conn.getInputStream();
		try {
			BufferedReader reader = new BufferedReader(new InputStreamReader(is));
			String line = null;
			while ((line = reader.readLine()) != null) sb.append(line+"\n");
		} catch (IOException e) {
			is.close();
			conn.disconnect();
			throw e;
		}
		is.close();
		conn.disconnect();
		return new JSONObject(sb.toString());	
	}
	private void go() {
		List<Bet> bets = new LinkedList<Bet>();
		try {
			System.out.println("Fetching data... Please wait!");
			JSONObject o = getData();
			System.out.println();
			for (String txkey : o.keySet())
				bets.add(new Bet(o.getJSONObject(txkey)));
		} catch (IOException e) {
			System.out.println("Data retrieval failed. Is the Lucky Bit API down?");
			System.out.println("The actual error encountered was:");
			System.out.println(e.getLocalizedMessage());
			return;
		}
		if (bets.size() == 0) {
			System.out.println("No results received.");
			System.out.println("Either [" + address + "] has never played a bet,");
			System.out.println("or that isn't a valid bitcoin address.");
			return;
		}
		double betT, betG = 0, betY = 0, betR = 0;
		double wonT, wonG = 0, wonY = 0, wonR = 0;
		Bet topWin = null, topHit = null;
		int plays, playsG = 0, playsY = 0, playsR = 0;
		int slots[] = {0,0,0,0,0,0,0,0,0};
		int slotsG[] = {0,0,0,0,0,0,0,0,0};
		int slotsY[] = {0,0,0,0,0,0,0,0,0};
		int slotsR[] = {0,0,0,0,0,0,0,0,0};
		double slotsP[] = {0,0,0,0,0,0,0,0,0};
		for (Bet bet : bets) {
			if (bet.isValid) {
				switch (bet.color) {
				case GREEN:
					betG += bet.amount;
					wonG += bet.payout;
					playsG += 1;
					slotsG[bet.slot()] += 1;
					break;
				case YELLOW:
					betY += bet.amount;
					wonY += bet.payout;
					playsY += 1;
					slotsY[bet.slot()] += 1;
					break;
				case RED:
					betR += bet.amount;
					wonR += bet.payout;
					playsR += 1;
					slotsR[bet.slot()] += 1;
					break;
				default:
					break;
				}
				if (topWin == null || topWin.payout < bet.payout) topWin = bet;
				if (topHit == null || topHit.result < bet.result || (topHit.result == bet.result && topHit.payout < bet.payout)) topHit = bet;
			}
		}
		betT = betG + betY + betR;
		wonT = wonG + wonY + wonR;
		plays = playsG + playsY + playsR;
		for (int i = 0; i < 9; i++) {
			slots[i] += slotsG[i];
			slots[i] += slotsY[i];
			slots[i] += slotsR[i];
			slotsP[i] = slots[i]*100.0/plays;
		}
		System.out.println("Bet analysis for [" + address + "]");
		System.out.println(String.format(
			"Total bet %-1.3f BTC - Total won %-1.3f BTC - Net P/L %-1.3f BTC", betT, wonT, wonT - betT));
		System.out.println(String.format(
			"Biggest win was %-1.3f on %s, hitting x%s for %-1.3f BTC", topWin.amount, topWin.color.toString().toLowerCase(), topWin.mult(), topWin.payout));
		System.out.println(String.format(
				"Best win was %-1.3f on %s, hitting x%s for %-1.3f BTC", topHit.amount, topHit.color.toString().toLowerCase(), topHit.mult(), topHit.payout));
		System.out.println(String.format(
			"%6s %6s %6s %6s %6s",
			"", "Green", "Yellow", "Red", "Total"));
		for (int i = 0; i < 9; i++)
			System.out.println(String.format(
				"Mid +%1d %6d %6d %6d %6d %-2.2f%%",
				i, slotsG[i], slotsY[i], slotsR[i], slots[i], slotsP[i]));			
		System.out.println(String.format(
			"%6s %6d %6d %6d %6d",
			"Total", playsG, playsY, playsR, plays));
	}
	public static void main(String[] args) {
		if (args.length != 1) {
			System.out.println("Specify your address, please.");
			return;
		}
		LuckyStatsApp theApp = new LuckyStatsApp(args[0]);
		theApp.go();
	}
}