package com.esotericsoftware.reflectasm.benchmark;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map.Entry;

public class Benchmark {
	public boolean warmup = true;
	public HashMap<String, Long> testTimes = new HashMap();
	private long s;

	public void start () {
		s = System.nanoTime();
	}

	public void end (String name) {
		if (warmup) return;
		long e = System.nanoTime();
		long time = e - s;
		Long oldTime = testTimes.get(name);
		if (oldTime == null || time < oldTime) testTimes.put(name, time);
		System.out.println(name + ": " + time / 1000000f + " ms");
	}

	public void chart (String title) {
		Comparator<Entry> comparator = new Comparator<Entry>() {
			public int compare (Entry o1, Entry o2) {
				// return ((String)o1.getKey()).compareTo((String)o2.getKey());
				return (int)((Long)o1.getValue() - (Long)o2.getValue());
			}
		};
		ArrayList<Entry> list = new ArrayList(testTimes.entrySet());
		Collections.sort(list, comparator);

		StringBuilder names = new StringBuilder(512);
		StringBuilder times = new StringBuilder(512);
		long max = 0;
		int count = 0;
		for (Entry<String, Long> entry : list) {
			String name = entry.getKey();
			names.insert(0, '|');
			names.insert(0, name);
			long time = entry.getValue();
			times.append(time);
			times.append(',');
			max = Math.max(max, time);
			count++;
		}
		times.setLength(times.length() - 1);
		names.setLength(names.length() - 1);
		int height = count * 18 + 21;
		int width = Math.min(700, 300000 / height);
		System.out.println("[img]http://chart.apis.google.com/chart?chtt=" + title + "&" + "chs=" + width + "x" + height
			+ "&chd=t:" + times + "&chds=0," + max + "&chxl=0:|" + names + "&cht=bhg&chbh=10&chxt=y&"
			+ "chco=660000|660033|660066|660099|6600CC|6600FF|663300|663333|"
			+ "663366|663399|6633CC|6633FF|666600|666633|666666[/img]\n");
	}
}