package com.genuineminecraft.bf;

public class BrainFuckeryTest {

	public static String test = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.";

	public static void main(String[] args) {
		if (args.length > 0)
			test = args[0];
		test = test.replaceAll("[^\\,\\.\\<\\>\\[\\]\\-\\+]", "");
		System.out.println("===================== Time Trials =====================");
		timeTrials();
	}

	public static void timeTrials() {
		long start, stop;
		int count = 100000;
		int dCount = 10;
		for (int j = 0; j < dCount; j++) {
			if (j == 0) {
				System.out.println("Info: Running " + count + " times x" + dCount + ".");
				System.out.println("Info: These are the pre-compile results!");
			} else
				System.out.println("Info: These are the post-compile results!");
			start = System.nanoTime();
			for (int i = 0; i < count; i++)
				encode_1(test);
			stop = System.nanoTime();
			System.out.println("Debug Encode 1: " + (stop - start) + " nanoseconds.");
			start = System.nanoTime();
			for (int i = 0; i < count; i++)
				encode_2(test);
			stop = System.nanoTime();
			System.out.println("Debug Encode 2: " + (stop - start) + " nanoseconds.");
		}
	}

	private static String encode_1(String in) {
		String out = "";
		int counter = 0;
		for (int place = 0; place < in.length(); place++) {
			char compare = in.charAt(place);
			if (in.length() > place + 1 && compare == in.charAt(place + 1)) {
				counter++;
				continue;
			}
			switch (counter) {
				case 1:
					out += Character.toString(compare);
					break;
				case 0:
					out += Character.toString(compare);
					break;
				default:
					out += Integer.toString(counter + 1);
					out += Character.toString(compare);
					break;
			}
			counter = 0;
		}
		return out;
	}

	private static String encode_2(String in) {
		StringBuilder out = new StringBuilder();
		int counter = 0;
		for (int place = 0; place < in.length(); place++) {
			char compare = in.charAt(place);
			if (in.length() > place + 1 && compare == in.charAt(place + 1)) {
				counter++;
				continue;
			}
			switch (counter) {
				case 1:
					out.append(Character.toString(compare));
				case 0:
					out.append(Character.toString(compare));
					break;
				default:
					out.append(Integer.toString(counter + 1));
					out.append(Character.toString(compare));
					break;
			}
			counter = 0;
		}
		return out.toString();
	}
}