/**
 * Jobs Plugin for Bukkit
 * Copyright (C) 2011 Zak Ford <zak.j.ford@gmail.com>
 * 
 * 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 com.gamingmesh.jobs;

import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.WeakHashMap;
import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.OfflinePlayer;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

import com.gamingmesh.jobs.config.ConfigManager;
import com.gamingmesh.jobs.container.ActionInfo;
import com.gamingmesh.jobs.container.Job;
import com.gamingmesh.jobs.container.JobItems;
import com.gamingmesh.jobs.container.JobProgression;
import com.gamingmesh.jobs.container.JobsPlayer;
import com.gamingmesh.jobs.dao.JobsDAO;
import com.gamingmesh.jobs.economy.BufferedEconomy;
import com.gamingmesh.jobs.economy.Economy;
import com.gamingmesh.jobs.economy.PaymentData;
import com.gamingmesh.jobs.i18n.Language;
import com.gamingmesh.jobs.stuff.ActionBar;
import com.gamingmesh.jobs.stuff.Debug;
import com.gamingmesh.jobs.stuff.JobsClassLoader;
import com.gamingmesh.jobs.stuff.Loging;
import com.gamingmesh.jobs.tasks.BufferedPaymentThread;
import com.gamingmesh.jobs.tasks.DatabaseSaveThread;

public class Jobs {
    public static Jobs instance = new Jobs();
    private static PlayerManager pManager = new PlayerManager();

    private static Logger pLogger;
    private static File dataFolder;
    private static JobsClassLoader classLoader = new JobsClassLoader(instance);
    private static JobsDAO dao = null;
    private static List<Job> jobs = null;
    private static Job noneJob = null;
    private static WeakHashMap<Job, Integer> usedSlots = new WeakHashMap<Job, Integer>();
    public static WeakHashMap<String, Boolean> actionbartoggle = new WeakHashMap<String, Boolean>();
//	public static WeakHashMap<String, Double> GlobalBoost = new WeakHashMap<String, Double>();
    private static BufferedEconomy economy;
    private static PermissionHandler permissionHandler;

    public static BufferedPaymentThread paymentThread = null;
    private static DatabaseSaveThread saveTask = null;

    public final static HashMap<String, PaymentData> paymentLimit = new HashMap<String, PaymentData>();
    public final static HashMap<String, PaymentData> ExpLimit = new HashMap<String, PaymentData>();

    private Jobs() {
    }

    /**
     * Returns player manager
     * @return the player manager
     */
    public static PlayerManager getPlayerManager() {
	return pManager;
    }

    /**
     * Sets the plugin logger
     */
    public static void setPluginLogger(Logger logger) {
	pLogger = logger;
    }

    /**
     * Retrieves the plugin logger
     * @return the plugin logger
     */
    public static Logger getPluginLogger() {
	return pLogger;
    }

    /**
     * Sets the data folder
     * @param dir - the data folder
     */
    public static void setDataFolder(File dir) {
	dataFolder = dir;
    }

    /**
     * Retrieves the data folder
     * @return data folder
     */
    public static File getDataFolder() {
	return dataFolder;
    }

    /**
     * Sets the Data Access Object
     * @param dao - the DAO
     */
    public static void setDAO(JobsDAO value) {
	dao = value;
    }

    /**
     * Get the Data Access Object
     * @return the DAO
     */
    public static JobsDAO getJobsDAO() {
	return dao;
    }

    /**
     * Sets the list of jobs
     * @param jobs - list of jobs
     */
    public static void setJobs(List<Job> list) {
	jobs = list;
    }

    /**
     * Retrieves the list of active jobs
     * @return list of jobs
     */
    public static List<Job> getJobs() {
	return Collections.unmodifiableList(jobs);
    }

    /**
     * Sets the none job
     * @param noneJob - the none job
     */
    public static void setNoneJob(Job job) {
	noneJob = job;
    }

    /**
     * Retrieves the "none" job
     * @return the none job
     */
    public static Job getNoneJob() {
	return noneJob;
    }

    /**
     * Function to return the job information that matches the jobName given
     * @param jobName - the ame of the job given
     * @return the job that matches the name
     */
    public static Job getJob(String jobName) {
	for (Job job : jobs) {
	    if (job.getName().equalsIgnoreCase(jobName))
		return job;
	}
	return null;
    }

    /**
     * Executes startup
     * @throws IOException 
     */
    public static void startup() throws IOException {
	reload();
	// add all online players
	for (Player online : Bukkit.getServer().getOnlinePlayers()) {
	    Jobs.getPlayerManager().playerJoin(online);
	}
    }

    /**
     * Reloads all data
     * @throws IOException 
     */
    public static void reload() throws IOException {
	if (saveTask != null) {
	    saveTask.shutdown();
	    saveTask = null;
	}

	if (paymentThread != null) {
	    paymentThread.shutdown();
	    paymentThread = null;
	}

	if (dao != null) {
	    dao.closeConnections();
	}

	ConfigManager.getJobsConfiguration().reload();
	Language.reload(ConfigManager.getJobsConfiguration().getLocale());
	ConfigManager.getJobConfig().reload();
	usedSlots.clear();
	for (Job job : jobs) {
	    usedSlots.put(job, getJobsDAO().getSlotsTaken(job));
	}
	pManager.reload();
	permissionHandler.registerPermissions();

	// set the system to auto save
	if (ConfigManager.getJobsConfiguration().getSavePeriod() > 0) {
	    saveTask = new DatabaseSaveThread(ConfigManager.getJobsConfiguration().getSavePeriod());
	    saveTask.start();
	}

	// schedule payouts to buffered payments
	paymentThread = new BufferedPaymentThread(ConfigManager.getJobsConfiguration().getEconomyBatchDelay());
	paymentThread.start();

	ConfigManager.getJobsConfiguration().loadScheduler();
    }

    /**
     * Executes clean shutdown
     */
    public static void shutdown() {
	if (saveTask != null)
	    saveTask.shutdown();

	if (paymentThread != null)
	    paymentThread.shutdown();

	pManager.saveAll();

	if (dao != null) {
	    dao.closeConnections();
	}
    }

    /**
     * Executes close connections
     */
    public static void ChangeDatabase() {
	if (dao != null) {
	    dao.closeConnections();
	}
	if (ConfigManager.getJobsConfiguration().storageMethod.equals("mysql"))
	    ConfigManager.getJobsConfiguration().startSqlite();
	else
	    ConfigManager.getJobsConfiguration().startMysql();
	pManager.reload();
    }

    /**
     * Function to get the number of slots used on the server for this job
     * @param job - the job
     * @return the number of slots
     */
    public static int getUsedSlots(Job job) {
	return usedSlots.get(job);
    }

    /**
     * Function to increase the number of used slots for a job
     * @param job - the job someone is taking
     */
    public static void takeSlot(Job job) {
	usedSlots.put(job, usedSlots.get(job) + 1);
    }

    /**
     * Function to decrease the number of used slots for a job
     * @param job - the job someone is leaving
     */
    public static void leaveSlot(Job job) {
	usedSlots.put(job, usedSlots.get(job) - 1);
    }

    /**
     * Returns the jobs classloader
     * @return the classloader
     */
    public static JobsClassLoader getJobsClassloader() {
	return classLoader;
    }

    /**
     * Sets the permission handler
     * @param h - the permission handler
     */
    public static void setPermissionHandler(PermissionHandler h) {
	permissionHandler = h;
    }

    /**
     * Gets the permission handler
     * @return the permission handler
     */
    public static PermissionHandler getPermissionHandler() {
	return permissionHandler;
    }

    /**
     * Sets the economy handler
     * @param eco - the economy handler
     */
    public static void setEconomy(JobsPlugin plugin, Economy eco) {
	economy = new BufferedEconomy(plugin, eco);
    }

    /**
     * Gets the economy handler
     * @return the economy handler
     */
    public static BufferedEconomy getEconomy() {
	return economy;
    }

    public static boolean isUnderMoneyLimit(OfflinePlayer player, Double amount) {

	if (player == null)
	    return true;

	String playername = player.getName();

	if (!ConfigManager.getJobsConfiguration().EconomyLimitUse)
	    return true;

	if (!paymentLimit.containsKey(playername)) {
	    PaymentData data = new PaymentData(System.currentTimeMillis(), amount, 0.0, 0L, false);
	    //data.AddNewAmount(amount);
	    paymentLimit.put(playername, data);
	} else {
	    PaymentData data = paymentLimit.get(playername);
	    if (data.IsReachedMoneyLimit(ConfigManager.getJobsConfiguration().EconomyLimitTimeLimit, ConfigManager.getJobsConfiguration().EconomyLimitMoneyLimit)) {
		if (player.isOnline() && !data.Informed && !data.isReseted()) {
		    ((Player) player).sendMessage(Language.getMessage("command.limit.output.reachedlimit"));
		    ((Player) player).sendMessage(Language.getMessage("command.limit.output.reachedlimit2"));
		    data.Setinformed();
		}
		if (data.IsAnnounceTime(ConfigManager.getJobsConfiguration().EconomyLimitAnnouncmentDelay) && player.isOnline()) {
		    String message = Language.getMessage("command.limit.output.lefttime").replace("%hour%", String.valueOf(data.GetLeftHour(ConfigManager
			.getJobsConfiguration().EconomyLimitTimeLimit)));
		    message = message.replace("%min%", String.valueOf(data.GetLeftMin(ConfigManager.getJobsConfiguration().EconomyLimitTimeLimit)));
		    message = message.replace("%sec%", String.valueOf(data.GetLeftsec(ConfigManager.getJobsConfiguration().EconomyLimitTimeLimit)));
		    ActionBar.send(((Player) player), ChatColor.RED + message);
		}
		if (data.isReseted())
		    data.setReseted(false);
		return false;
	    } else
		data.AddAmount(amount);
	    paymentLimit.put(playername, data);
	}
	return true;
    }

    public static boolean isUnderExpLimit(final OfflinePlayer player, Double amount) {
	if (player == null)
	    return false;

	String playername = player.getName();

	if (!ConfigManager.getJobsConfiguration().EconomyExpLimitUse)
	    return true;

	if (!ExpLimit.containsKey(playername)) {
	    PaymentData data = new PaymentData(System.currentTimeMillis(), 0.0, amount, 0L, false);
	    //data.AddNewAmount(amount);
	    ExpLimit.put(playername, data);
	} else {
	    PaymentData data = ExpLimit.get(playername);
	    if (data.IsReachedExpLimit(ConfigManager.getJobsConfiguration().EconomyExpTimeLimit, ConfigManager.getJobsConfiguration().EconomyExpLimit)) {
		if (player.isOnline() && !data.Informed && !data.isReseted()) {
		    ((Player) player).sendMessage(Language.getMessage("command.limit.output.reachedExplimit"));
		    ((Player) player).sendMessage(Language.getMessage("command.limit.output.reachedExplimit2"));
		    data.Setinformed();
		}
		if (data.IsAnnounceTime(ConfigManager.getJobsConfiguration().EconomyLimitAnnouncmentExpDelay) && player.isOnline()) {
		    String message = Language.getMessage("command.limit.output.lefttime").replace("%hour%", String.valueOf(data.GetLeftHour(ConfigManager
			.getJobsConfiguration().EconomyExpTimeLimit)));
		    message = message.replace("%min%", String.valueOf(data.GetLeftMin(ConfigManager.getJobsConfiguration().EconomyExpTimeLimit)));
		    message = message.replace("%sec%", String.valueOf(data.GetLeftsec(ConfigManager.getJobsConfiguration().EconomyExpTimeLimit)));
		    ActionBar.send(((Player) player), ChatColor.RED + message);
		}
		if (data.isReseted())
		    data.setReseted(false);
		return false;
	    } else
		data.AddExpAmount(amount);
	    ExpLimit.put(playername, data);
	}
	return true;
    }

    /**
     * Performed an action
     * 
     * Give correct experience and income
     * @param jPlayer - the player
     * @param action - the action
     * @param multiplier - the payment/xp multiplier
     */
    @SuppressWarnings("deprecation")
    public static void action(JobsPlayer jPlayer, ActionInfo info, double multiplier, ItemStack item, ItemStack[] armor) {

	if (jPlayer == null)
	    return;

	List<JobProgression> progression = jPlayer.getJobProgression();
	int numjobs = progression.size();
	// no job

	if (numjobs == 0) {
	    Job jobNone = Jobs.getNoneJob();
	    Player dude = Bukkit.getServer().getPlayer(jPlayer.getPlayerUUID());

	    if (jobNone != null) {
		Double income = jobNone.getIncome(info, 1, numjobs);
		if (income != null) {

		    Double amount = income + ((income * multiplier) - income) + ((income * 1.0) - income) + ((income * Jobs.getNoneJob().getMoneyBoost()) - income);

		    if (ConfigManager.getJobsConfiguration().useDynamicPayment) {
			double moneyBonus = (income * (jobNone.getBonus() / 100));
			amount += moneyBonus;
		    }

		    if (!isUnderMoneyLimit(dude, amount))
			return;

		    Jobs.getEconomy().pay(jPlayer, amount, 0.0);

		    if (ConfigManager.getJobsConfiguration().LoggingUse)
			Loging.recordToLog(jPlayer, info, amount, 0);
		}
	    }
	} else {

	    for (JobProgression prog : progression) {

		int level = prog.getLevel();
		Double income = prog.getJob().getIncome(info, level, numjobs);

		if (income != null) {
		    Double exp = prog.getJob().getExperience(info, level, numjobs);

		    if (ConfigManager.getJobsConfiguration().addXpPlayer()) {
			Player player = Bukkit.getServer().getPlayer(jPlayer.getPlayerUUID());
			if (player != null) {
			    /*
			     * Minecraft experience is calculated in whole numbers only.
			     * Calculate the fraction of an experience point and perform a dice roll.
			     * That way jobs that give fractions of experience points will slowly give
			     * experience in the aggregate
			     */
			    int expInt = exp.intValue();
			    double remainder = exp.doubleValue() - expInt;
			    if (Math.abs(remainder) > Math.random()) {
				if (exp.doubleValue() < 0) {
				    expInt--;
				} else {
				    expInt++;
				}
			    }
			    player.giveExp(expInt);
			}
		    }

		    // Item boost check
		    Double itemMoneyBoost = 0.0;
		    Double itemExpBoost = 0.0;
		    if (item != null)
			if (item.hasItemMeta()) {
			    ItemMeta meta = item.getItemMeta();
			    if (meta.hasDisplayName() && meta.hasLore())
				for (JobItems oneItem : prog.getJob().getItems()) {
				    if (oneItem.getId() != item.getTypeId())
					continue;
				    if (!ChatColor.translateAlternateColorCodes('&', oneItem.getName()).equalsIgnoreCase(meta.getDisplayName()))
					continue;
				    if (!oneItem.getLore().equals(meta.getLore()))
					continue;
				    itemMoneyBoost = ((income * oneItem.getMoneyBoost()) - income);
				    itemExpBoost = ((exp * oneItem.getExpBoost()) - exp);
				    break;
				}
			}

		    // Armor boost check
		    Double armorMoneyBoost = 0.0;
		    Double armorExpBoost = 0.0;
		    if (armor != null)
			for (ItemStack OneArmor : armor) {
			    if (OneArmor == null)
				continue;
			    if (!OneArmor.hasItemMeta())
				continue;
			    ItemMeta meta = OneArmor.getItemMeta();
			    if (!meta.hasDisplayName() || !meta.hasLore())
				continue;
			    for (JobItems oneItem : prog.getJob().getItems()) {
				if (oneItem.getId() != OneArmor.getTypeId())
				    continue;
				if (!ChatColor.translateAlternateColorCodes('&', oneItem.getName()).equalsIgnoreCase(meta.getDisplayName()))
				    continue;
				if (!oneItem.getLore().equals(meta.getLore()))
				    continue;
				armorMoneyBoost += ((income * oneItem.getMoneyBoost()) - income);
				armorExpBoost += ((exp * oneItem.getExpBoost()) - exp);
				break;

			    }

			}

		    OfflinePlayer dude = jPlayer.getPlayer();

		    // Calculate income
		    Double amount = income + ((income * multiplier) - income) + ((income * prog.getJob().getMoneyBoost()) - income) + ((income * prog.getMoneyBoost())
			- income) + itemMoneyBoost + armorMoneyBoost;

		    if (ConfigManager.getJobsConfiguration().useDynamicPayment) {
			double moneyBonus = (income * (prog.getJob().getBonus() / 100));
			amount += moneyBonus;
		    }

		    // Calculate exp
		    double expAmount = exp + ((exp * multiplier) - exp) + ((exp * prog.getJob().getExpBoost()) - exp) + ((exp * prog.getExpBoost()) - exp) + itemExpBoost
			+ armorExpBoost;

		    if (ConfigManager.getJobsConfiguration().useDynamicPayment) {
			double expBonus = (exp * (prog.getJob().getBonus() / 100));
			expAmount += expBonus;
		    }

		    if (!isUnderMoneyLimit(dude, amount)) {
			amount = 0.0000000001;
			if (ConfigManager.getJobsConfiguration().EconomyExpStop)
			    expAmount = 0.0;
		    }

		    if (!isUnderExpLimit(dude, expAmount)) {
			expAmount = 0.0;
			if (ConfigManager.getJobsConfiguration().EconomyMoneyStop)
			    expAmount = 0.0000000001;
		    }

		    if (amount == 0.0000000001 && expAmount == 0.0)
			continue;

		    Jobs.getEconomy().pay(jPlayer, amount, expAmount);
		    int oldLevel = prog.getLevel();

		    if (ConfigManager.getJobsConfiguration().LoggingUse)
			Loging.recordToLog(jPlayer, info, amount, expAmount);

		    if (prog.addExperience(expAmount))
			Jobs.getPlayerManager().performLevelUp(jPlayer, prog.getJob(), oldLevel);
		}
	    }
	}
    }

}