/**
 * Copyright (c) <2012>, Oleg Romanovskiy <shedarhome@gmail.com> aka Shedar
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the author nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.modstats.reporter.v1;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.ForgeSubscribe;
import net.minecraftforge.event.world.WorldEvent;

import org.modstats.IModstatsReporter;
import org.modstats.ModVersionData;
import org.modstats.ModstatInfo;

import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.FMLLog;
import cpw.mods.fml.common.Mod;

public class Reporter implements IModstatsReporter
{

	public Map<String, ModVersionData> registeredMods;
	private DataSender sender;
	public Config config;

	/**
	 * At least one auto check was completed successfully
	 */
	private boolean checkedAuto;

	public Reporter()
	{
		checkedAuto = false;
		registeredMods = new ConcurrentHashMap<String, ModVersionData>(2, 0.9f, 1);
		MinecraftForge.EVENT_BUS.register(this);
		config = new Config();
	}

	private void startCheck(boolean manual)
	{
		if (!config.allowUpdates)
			return;
		// only manual check is allowed on servers
		if (!FMLCommonHandler.instance().getSide().isClient() && !manual)
			return;
		if (registeredMods.isEmpty())
			return;
		DataSender currentSender = sender;
		if (!manual && checkedAuto)
			return;
		if (currentSender != null && (currentSender.manual == false || manual))
			return;
		currentSender = new DataSender(this, manual);
		currentSender.start();
		sender = currentSender;

	}

	@ForgeSubscribe
	public void worldLoad(WorldEvent.Load event)
	{
		startCheck(false);
	}

	@Override
	public void registerMod(Object mod)
	{
		if (!config.allowUpdates)
			return;
		if (mod == null)
		{
			FMLLog.warning("[Modstats] Can't register null mod.");
			return;
		}
		ModstatInfo info = mod.getClass().getAnnotation(ModstatInfo.class);
		if (info == null)
		{
			FMLLog.warning("[Modstats] ModstatsInfo annotation not found for given mod.");
			return;
		}

		if (info.prefix() == null || info.prefix().equals(""))
		{
			FMLLog.warning("[Modstats] Mod prefix can't be empty.");
			return;
		}
		Mod modData = mod.getClass().getAnnotation(Mod.class);
		ModVersionData data;
		if (modData == null)
		{
			if (info.name() == null || info.name().equals(""))
			{
				FMLLog.warning("[Modstats] Mod name can't be empty.");
				return;
			}
			if (info.version() == null || info.version().equals(""))
			{
				FMLLog.warning("[Modstats] Mod version can't be empty.");
				return;
			}
			data = new ModVersionData(info.prefix(), info.name(), info.version());
		}
		else
		{
			data = new ModVersionData(info.prefix(), modData.name(), modData.version());
		}
		registeredMods.put(info.prefix(), data);
	}

	@Override
	public void doManualCheck()
	{
		startCheck(true);
	}

}