/*
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If
 * not, see <http://www.gnu.org/licenses/>.
 */
package silentium.scripts.ai;

import silentium.commons.utils.Rnd;
import silentium.gameserver.ai.DefaultMonsterAI;
import silentium.gameserver.model.L2Effect;
import silentium.gameserver.model.L2Skill;
import silentium.gameserver.model.actor.L2Npc;
import silentium.gameserver.model.actor.instance.L2PcInstance;
import silentium.gameserver.scripting.ScriptFile;
import silentium.gameserver.tables.SkillTable;

/**
 * Hot Spring Disease AI
 *
 * @author devO, Sandro, Tryskell
 */
public class HotSpringDisease extends DefaultMonsterAI implements ScriptFile {
	static final int[] disease1mobs = { 21314, 21316, 21317, 21319, 21321, 21322 }; // Monsters which cast Hot Spring Malaria
	// (4554)
	static final int[] disease2mobs = { 21317, 21322 }; // Monsters which cast Hot Springs Flu (4553)
	static final int[] disease3mobs = { 21316, 21319 }; // Monsters which cast Hot Springs Cholera (4552)
	static final int[] disease4mobs = { 21314, 21321 }; // Monsters which cast Hot Springs Rheumatism (4551)

	// Chance to get infected by disease
	private static final int DISEASE_CHANCE = 1;

	public static void onLoad() {
		new HotSpringDisease(-1, "HotSpringDisease", "HotSpringDisease", "ai");
	}

	public HotSpringDisease(final int scriptId, final String name, final String dname, final String path) {
		super(scriptId, name, dname, path);
		registerMobs(disease1mobs, QuestEventType.ON_ATTACK_ACT);
	}

	@Override
	public String onAttackAct(final L2Npc npc, final L2PcInstance victim) {
		if (contains(disease1mobs, npc.getNpcId()))
			tryToApplyEffect(npc, victim, 4554);

		if (contains(disease2mobs, npc.getNpcId()))
			tryToApplyEffect(npc, victim, 4553);

		if (contains(disease3mobs, npc.getNpcId()))
			tryToApplyEffect(npc, victim, 4552);

		if (contains(disease4mobs, npc.getNpcId()))
			tryToApplyEffect(npc, victim, 4551);

		return super.onAttackAct(npc, victim);
	}

	private void tryToApplyEffect(final L2Npc npc, final L2PcInstance victim, final int skillId) {
		if (skillId != 0) {
			if (Rnd.get(100) < DISEASE_CHANCE) {
				int level = 0;
				final L2Effect[] effects = victim.getAllEffects();
				if (effects.length != 0 || effects != null) {
					for (final L2Effect e : effects) {
						if (e.getSkill().getId() == skillId) {
							level = e.getSkill().getLevel();
							e.exit();
						}
					}
				}

				// When skill level reaches 10, don't go further (avoid pointless spam).
				if (level == 10)
					return;

				++level;

				final L2Skill tempSkill = SkillTable.getInstance().getInfo(skillId, level);
				tempSkill.getEffects(npc, victim);
			}
		}
	}
}