/*
 * FindBugs - Find Bugs in Java programs
 * Copyright (C) 2005, University of Maryland
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.umd.cs.findbugs.workflow;

import java.util.ArrayList;
import java.util.Map;

import edu.umd.cs.findbugs.BugCollection;
import edu.umd.cs.findbugs.BugInstance;
import edu.umd.cs.findbugs.DetectorFactoryCollection;
import edu.umd.cs.findbugs.ProjectPackagePrefixes;
import edu.umd.cs.findbugs.SortedBugCollection;
import edu.umd.cs.findbugs.util.Bag;

public class TestingGround {
	BugCollection bugCollection;

	public TestingGround() {
	}

	public TestingGround(BugCollection bugCollection) {
		this.bugCollection = bugCollection;
	}

	public void setBugCollection(BugCollection bugCollection) {
		this.bugCollection = bugCollection;
	}

	public TestingGround execute() {
		ProjectPackagePrefixes foo = new ProjectPackagePrefixes();

		for (BugInstance b : bugCollection.getCollection())
			foo.countBug(b);
		foo.report();

		return this;
	}

	static class CommandLine extends edu.umd.cs.findbugs.config.CommandLine {

		@Override
		public void handleOption(String option, String optionalExtraPart) {
			throw new IllegalArgumentException("unknown option: " + option);
		}

		@Override
		public void handleOptionWithArgument(String option, String argument) {
			throw new IllegalArgumentException("unknown option: " + option);
		}
	}

	public static void main(String[] args) throws Exception {
		DetectorFactoryCollection.instance(); // load plugins

		CommandLine commandLine = new CommandLine();
		int argCount = commandLine.parse(args, 0, 2, "Usage: " + TestingGround.class.getName() + " [options] [<xml results>] ");

		SortedBugCollection bugCollection = new SortedBugCollection();
		if (argCount < args.length)
			bugCollection.readXML(args[argCount++]);
		else
			bugCollection.readXML(System.in);
		ArrayList<Bag<String>> live = new ArrayList<Bag<String>>();
		ArrayList<Bag<String>> died = new ArrayList<Bag<String>>();
		Bag<String> allBugs = new Bag<String>();
		for (int i = 0; i <= bugCollection.getSequenceNumber(); i++) {
			live.add(new Bag<String>());
			died.add(new Bag<String>());
		}
		for (BugInstance b : bugCollection) {
			int first = (int) b.getFirstVersion();
			int buried = (int) b.getLastVersion() + 1;
			int finish = buried;
			if (finish == 0)
				finish = (int) bugCollection.getSequenceNumber();

			String bugPattern = b.getBugPattern().getType();
			allBugs.add(bugPattern);

			for (int i = first; i <= finish; i++)
				live.get(i).add(bugPattern);
			if (buried > 0)
				died.get(buried).add(bugPattern);
		}
		for (int i = 0; i < bugCollection.getSequenceNumber(); i++) {
			for (Map.Entry<String, Integer> e : died.get(i).entrySet()) {
				Integer buried = e.getValue();
				int total = live.get(i).getCount(e.getKey());
				if (buried > 30 && buried * 3 > total) {
					System.out.printf("%d/%d died at %d for %s%n", buried, total, i, e.getKey());
				}
			}

		}
		SortedBugCollection results = bugCollection.createEmptyCollectionWithMetadata();
		for (BugInstance b : bugCollection) {
			int buried = (int) b.getLastVersion() + 1;
			String bugPattern = b.getBugPattern().getType();

			if (buried > 0) {
				int buriedCount = died.get(buried).getCount(bugPattern);
				int total = live.get(buried).getCount(bugPattern);
				if (buriedCount > 30 && buriedCount * 3 > total) 
					continue;
			}
			int survied = live.get((int)bugCollection.getSequenceNumber()).getCount(bugPattern);
			if (survied == 0 && allBugs.getCount(bugPattern) > 100)
				continue;
			
			results.add(b, false);
		}
		if (argCount == args.length) {
			results.writeXML(System.out);
		}
		else {
			results.writeXML(args[argCount++]);

		}

			

	}
}