package com.graywolf336.jail;

import org.bukkit.GameMode;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;

import com.graywolf336.jail.beans.Cell;
import com.graywolf336.jail.beans.Jail;
import com.graywolf336.jail.beans.Prisoner;
import com.graywolf336.jail.enums.LangString;
import com.graywolf336.jail.enums.Settings;
import com.graywolf336.jail.events.PrePrisonerReleasedEvent;
import com.graywolf336.jail.events.PrisonerJailedEvent;
import com.graywolf336.jail.events.PrisonerReleasedEvent;
import com.graywolf336.jail.events.PrisonerTransferredEvent;

/**
 * Provides methods, non-statically, that do the preparing of jails and handle all the good stuff like that.
 * 
 * @author graywolf336
 * @since 2.x.x
 * @version 3.0.0
 */
public class PrisonerManager {
	private JailMain pl;
	
	public PrisonerManager(JailMain plugin) {
		this.pl = plugin;
	}
	
	/**
	 * Does everything preparing for the jailing of the provided prisoner, if they are online it forwards it to {@link #jailPrisoner(Jail, Cell, Player, Prisoner)}.
	 * 
	 * <p />
	 * 
	 * In this we do the following:
	 * <ol>
	 * 	<li>Checks if the jail is null, if so it throws an Exception</li>
	 * 	<li>Checks if the prisoner is null, if so it throws an Exception</li>
	 * 	<li>Sets the prisoner data to offline pending or not, player == null</li>
	 * 	<li>If the cell is null, add the prisoner data to the jail otherwise we set the cell's prisoner to this one. <em>Check before here if the cell already contains a prisoner.</em></li>
	 * 	<li>Saves the jail information, goes out to the {@link JailIO} to initate a save.</li>
	 * 	<li>If the prisoner is <em>not</em> offline, we will actually {@link #jailPrisoner(Jail, Cell, Player, Prisoner) jail} them now.</li>
	 * 	<li>Does checks to get the right message for the next two items.</li>
	 * 	<li>If we broadcast the jailing, then let's broadcast it.</li>
	 * 	<li>If we log the jailing to console <em>and</em> we haven't broadcasted it, then we log it to the console.</li>
	 * </ol>
	 * 
	 * @param jail The {@link Jail jail instance} we are sending this prisoner to
	 * @param cell The name of the {@link Cell cell} we are sending this prisoner to
	 * @param player The {@link Player player} we are preparing the jail for.
	 * @param prisoner The {@link Prisoner prisoner} file.
	 * @throws Exception if the jail or prisoner are null.
	 */
	public void prepareJail(Jail jail, Cell cell, Player player, Prisoner prisoner) throws Exception {
		//Do some checks of whether the passed params are null.
		if(jail == null)
			throw new Exception("The jail can not be null.");
		
		if(prisoner == null)
			throw new Exception("Prisoner data can not be null.");
		
		//Set whether the prisoner is offline or not.
		prisoner.setOfflinePending(player == null);
		
		//Now that we've got those checks out of the way, let's start preparing.
		if(cell == null) {
			jail.addPrisoner(prisoner);
		}else {
			cell.setPrisoner(prisoner);
		}
		
		//Save the jail after adding them to the jail
		pl.getJailIO().saveJail(jail);
		
		//If they are NOT offline, jail them
		if(!prisoner.isOfflinePending()) {
			jailPrisoner(jail, cell, player, prisoner);
		}
		
		//Get a message ready for broadcasting or logging.
		String msg = "";
		
		if(prisoner.getRemainingTime() < 0L)
			msg = pl.getJailIO().getLanguageString(LangString.BROADCASTMESSAGEFOREVER, new String[] { prisoner.getName() });
		else
			msg = pl.getJailIO().getLanguageString(LangString.BROADCASTMESSAGEFORMINUTES, new String[] { prisoner.getName(), String.valueOf(prisoner.getRemainingTimeInMinutes()) });
		
		boolean broadcasted = false;
		//Broadcast the message, if it is enabled
		if(pl.getConfig().getBoolean(Settings.BROADCASTJAILING.getPath(), false)) {
			pl.getServer().broadcastMessage(msg);
			broadcasted = true;
		}
		
		//Log the message, if it is enabled
		if(pl.getConfig().getBoolean(Settings.LOGJAILINGTOCONSOLE.getPath(), true) && !broadcasted) {
			pl.getServer().getConsoleSender().sendMessage(msg);
		}
	}
	
	/**
	 * Jails the prisoner with the given name.
	 * 
	 * @param name of the prisoner to jail.
	 */
	public void jailPrisoner(String name) {
		Jail j = pl.getJailManager().getJailPlayerIsIn(name);
		
		jailPrisoner(j, j.getCellPrisonerIsIn(name), pl.getServer().getPlayerExact(name), j.getPrisoner(name));
	}
	
	/**
	 * Jails the prisoner with the proper information given.
	 * 
	 * @param jail where they are going
	 * @param cell where they are being placed in, can be null
	 * @param player who is the prisoner
	 * @param prisoner data containing everything pertaining to them
	 */
	public void jailPrisoner(Jail jail, Cell cell, Player player, Prisoner prisoner) {
		//If they have handcuffs on them, then let's remove them before we continue
		//this way the handcuff listeners and this aren't battleing each other
		if(pl.getHandCuffManager().isHandCuffed(player.getName())) {
			pl.getHandCuffManager().removeHandCuffs(player.getName());
		}
		
		//They are no longer offline, so set that.
		prisoner.setOfflinePending(false);
		
		//We are getting ready to teleport them, so set it to true so that
		//the *future* move checkers won't be canceling our moving.
		prisoner.setTeleporting(true);
		
		//If their reason is empty send proper message, else send other proper message
		if(prisoner.getReason().isEmpty()) {
			player.sendMessage(pl.getJailIO().getLanguageString(LangString.JAILED));
		}else {
			player.sendMessage(pl.getJailIO().getLanguageString(LangString.JAILEDWITHREASON, new String[] { prisoner.getReason() }));
		}
		
		//If the config has inventory deletion, then let's delete it
		if(pl.getConfig().getBoolean(Settings.DELETEINVENTORY.getPath(), false)) {
			player.getInventory().setArmorContents(null);
			player.getInventory().clear();
		}
		
		//If the config has releasing them back to their previous position,
		//then let's set it in the prisoner data.
		if(pl.getConfig().getBoolean(Settings.RELEASETOPREVIOUSPOSITION.getPath(), false)) {
			prisoner.setPreviousPosition(player.getLocation());
		}
		
		//If the config has restoring their previous gamemode enabled,
		//then let's set it in their prisoner data.
		if(pl.getConfig().getBoolean(Settings.RESTOREPREVIOUSGAMEMODE.getPath(), false)) {
			prisoner.setPreviousGameMode(player.getGameMode());
		}
		
		//Set their gamemode to the one in the config, if we get a null value
		//from the parsing then we set theirs to adventure
		try {
			player.setGameMode(GameMode.valueOf(pl.getConfig().getString(Settings.JAILEDGAMEMODE.getPath(), "ADVENTURE").toUpperCase()));
		}catch(Exception e) {
			pl.getLogger().severe("Your jailedgamemode setting is incorrect, please fix.");
			player.setGameMode(GameMode.ADVENTURE);
		}
		
		//only eject them if they're inside a vehicle and also eject anyone else on top of them
    	if(player.isInsideVehicle()) {
    		player.getVehicle().eject();
    		player.getPassenger().eject();
    		player.eject();
    	}
    	
    	//If we are ignoring the sleeping state of prisoners,
    	//then let's set that
    	if(pl.getConfig().getBoolean(Settings.IGNORESLEEPINGSTATE.getPath(), true)) {
    		player.setSleepingIgnored(true);
    	}
    	
    	//Get the max and min food level in the config
    	int maxFood = pl.getConfig().getInt(Settings.FOODCONTROLMAX.getPath(), 20);
    	int minFood = pl.getConfig().getInt(Settings.FOODCONTROLMIN.getPath(), 10);
    	
    	//If their food level is less than the min food level, set it to the min
    	//but if it is higher than the max, set it to the max
    	if (player.getFoodLevel() <  minFood) {
			player.setFoodLevel(minFood);
		} else if (player.getFoodLevel() > maxFood) {
			player.setFoodLevel(maxFood);
		}
    	
    	//If the cell doesn't equal null, then let's put them in the jail
    	if(cell != null) {
    		//check if we store the inventory
    		if(pl.getConfig().getBoolean(Settings.JAILEDSTOREINVENTORY.getPath(), true)) {
    			//Check if there is a chest to store our items to and if it is a double chest, if not we will then serialize it
    			if(cell.hasChest()) {
    				//Get the chest's inventory and then clear it
    				Inventory chest = cell.getChest().getInventory();
    				chest.clear();
    				
    				//Get the separate inventory, so we can iterate of them
    				ItemStack[] inventory = player.getInventory().getContents();
    				ItemStack[] armor = player.getInventory().getArmorContents();
    				
    				for(ItemStack item : inventory) {
    					int i = chest.firstEmpty();
    					if(i != -1) {//Check that we have got a free spot, should never happen but just in case
    						chest.setItem(i, item);
    					}
    				}
    				
    				for(ItemStack item : armor) {
    					int i = chest.firstEmpty();
    					if(i != -1) {//Check that we have got a free spot, should never happen but just in case
    						chest.setItem(i, item);
    					}
    				}
    				
    				player.getInventory().setArmorContents(null);
    				player.getInventory().clear();
    				
    				//Here so we don't forget about it later as this method isn't finished, but
    				//Updates the cell's signs
    				cell.update();
    			}else {
    				String[] inv = Util.playerInventoryToBase64(player.getInventory());
    				prisoner.setInventory(inv[0]);
    				prisoner.setArmor(inv[1]);
    				
    				player.getInventory().setArmorContents(null);
    				player.getInventory().clear();
    			}
    		}
    		
    		//Teleport them to the cell's teleport location
    		//they will now be placed in jail.
    		player.teleport(cell.getTeleport());
    	}else {
    		//There is no cell we're jailing them to, so stick them in the jail
    		if(pl.getConfig().getBoolean(Settings.JAILEDSTOREINVENTORY.getPath(), true)) {
    			String[] inv = Util.playerInventoryToBase64(player.getInventory());
				prisoner.setInventory(inv[0]);
				prisoner.setArmor(inv[1]);
				
				player.getInventory().setArmorContents(null);
				player.getInventory().clear();
    		}
    		
    		//Teleport them to the jail's teleport in location
    		//They will now be placed in jail.
    		player.teleport(jail.getTeleportIn());
    	}
    	
    	//Set them to not allowing teleporting, as we are not going to be moving them anymore
    	//this way the move checkers will start checking this player.
    	prisoner.setTeleporting(false);
    	
    	//Get the commands to execute after they are jailed
    	//replace all of the %p% so that the commands can have a player name in them
    	for(String command : pl.getConfig().getStringList(Settings.COMMANDSONJAIL.getPath())) {
    		command = command.replaceAll("%p%", player.getName());
    		pl.getServer().dispatchCommand(pl.getServer().getConsoleSender(), command);
    	}
    	
    	//Add the scoreboard to them if it is enabled
		if(pl.getConfig().getBoolean(Settings.SCOREBOARDENABLED.getPath())) {
			pl.getScoreBoardManager().addScoreBoard(player, prisoner);
		}
    	
    	//Call our custom event for when a prisoner is actually jailed.
    	PrisonerJailedEvent event = new PrisonerJailedEvent(jail, cell, prisoner, player);
    	pl.getServer().getPluginManager().callEvent(event);
    	
    	//Save the data, as we have changed it
    	pl.getJailIO().saveJail(jail);
	}
	
	/**
	 * Release the given prisoner from jailing, does the checks if they are offline or not.
	 * 
	 * @param player we are releasing, can be null and if so they'll be treated as offline.
	 * @param prisoner data to handle.
	 */
	public void releasePrisoner(Player player, Prisoner prisoner) {
		if(player == null) {
			prisoner.setOfflinePending(true);
			prisoner.setRemainingTime(0);
		}else {
			Jail j = pl.getJailManager().getJailPlayerIsIn(player.getName());
			
			try {
				unJail(j, j.getCellPrisonerIsIn(player.getName()), player, prisoner);
			}catch(Exception e) {
				pl.getLogger().severe("Unable to unjail the prisoner " + player.getName() + " because '" + e.getMessage() + "'.");
			}
			
		}
	}
	
	/**
	 * Unjails a prisoner from jail, removing all their data.
	 * 
	 * <p />
	 * 
	 * Throws an exception if either the jail is null or the prisoner is null.
	 * 
	 * @param jail where the prisoner is located at
	 * @param cell which the prisoner is in, can be null
	 * @param player instance for the prisoner we're unjailing
	 * @param prisoner data where everything resides
	 * @throws Exception
	 */
	public void unJail(Jail jail, Cell cell, Player player, Prisoner prisoner) throws Exception {
		//Do some checks of whether the passed params are null.
		if(jail == null)
			throw new Exception("The jail can not be null.");
		
		if(prisoner == null)
			throw new Exception("Prisoner data can not be null.");
		
		//Throw the custom event which is called before we start releasing them
		PrePrisonerReleasedEvent preEvent = new PrePrisonerReleasedEvent(jail, cell, prisoner, player);
		pl.getServer().getPluginManager().callEvent(preEvent);
		
		//We are getting ready to teleport them, so set it to true so that
		//the *future* move checkers won't be canceling our moving.
		prisoner.setTeleporting(true);
		
		//In case they have somehow got on a vehicle, let's unmount
		//them so we can possibly teleport them
		if(player.isInsideVehicle()) {
    		player.getVehicle().eject();
    		player.getPassenger().eject();
    		player.eject();
    	}
		
		//In case we had set their sleeping state to be ignored
		//let's enable their sleeping state taking place again
		player.setSleepingIgnored(false);
		
		//If the config has us teleporting them back to their previous position
		//then let's do that, but if it doesn't yet it has the teleport on release
		//then let's teleport them to the free teleport location
		if(pl.getConfig().getBoolean(Settings.RELEASETOPREVIOUSPOSITION.getPath(), false)) {
			player.teleport(prisoner.getPreviousLocation());
		}else if(pl.getConfig().getBoolean(Settings.TELEPORTONRELEASE.getPath(), true)) {
			player.teleport(jail.getTeleportFree());
		}
		
		//If we are to restore their previous gamemode and we have it stored,
		//then by all means let's restore it
		if(pl.getConfig().getBoolean(Settings.RESTOREPREVIOUSGAMEMODE.getPath(), false)) {
			player.setGameMode(prisoner.getPreviousGameMode());
		}
		
		//Now, let's restore their inventory
		//if the cell isn't null, let's check if the cell has a chest and if so then try out best to restore
		//the prisoner's inventory from that
		if(cell != null) {
			if(cell.hasChest()) {
				Inventory chest = cell.getChest().getInventory();
				
				for (ItemStack item : chest.getContents()) {
					if (item == null || item.getType() == Material.AIR) continue;
					
					if(item.getType().toString().toLowerCase().contains("helmet") && (player.getInventory().getHelmet() == null || player.getInventory().getHelmet().getType() == Material.AIR)) {
						player.getInventory().setHelmet(item);
					} else if(item.getType().toString().toLowerCase().contains("chestplate") && (player.getInventory().getChestplate() == null || player.getInventory().getChestplate().getType() == Material.AIR)) {
						player.getInventory().setChestplate(item);
					} else if(item.getType().toString().toLowerCase().contains("leg") && (player.getInventory().getLeggings() == null || player.getInventory().getLeggings().getType() == Material.AIR)) {
						player.getInventory().setLeggings(item);
					} else if(item.getType().toString().toLowerCase().contains("boots") && (player.getInventory().getBoots() == null || player.getInventory().getBoots().getType() == Material.AIR)) {
						player.getInventory().setBoots(item);
					} else if (player.getInventory().firstEmpty() == -1) {
						player.getWorld().dropItem(player.getLocation(), item);
					} else {
						player.getInventory().addItem(item);
					}
				}
				
				chest.clear();
			}else {
				Util.restoreInventory(player, prisoner);
			}
			
			pl.getJailIO().removePrisoner(jail, cell, prisoner);
			cell.removePrisoner();
		}else {
			Util.restoreInventory(player, prisoner);
			
			pl.getJailIO().removePrisoner(jail, prisoner);
			jail.removePrisoner(prisoner);
		}
		
		//Get the commands to execute prisoners are unjailed
    	//replace all of the %p% so that the commands can have a player name in them
    	for(String command : pl.getConfig().getStringList(Settings.COMMANDSONRELEASE.getPath())) {
    		command = command.replaceAll("%p%", player.getName());
    		pl.getServer().dispatchCommand(pl.getServer().getConsoleSender(), command);
    	}
    	
    	//Remove the scoreboard to them if it is enabled
		if(pl.getConfig().getBoolean(Settings.SCOREBOARDENABLED.getPath())) {
			pl.getScoreBoardManager().removeScoreBoard(player);
		}
		
    	//Call the prisoner released event as we have released them.
    	PrisonerReleasedEvent event = new PrisonerReleasedEvent(jail, cell, prisoner, player);
    	pl.getServer().getPluginManager().callEvent(event);
    	
		player.sendMessage(pl.getJailIO().getLanguageString(LangString.UNJAILED));
	}
	
	/** Forcefully releases a {@link Prisoner prisoner} from {@link Jail}. */
	public void forceRelease(Prisoner prisoner) {
		Jail j = pl.getJailManager().getJailPrisonerIsIn(prisoner);
		forceUnJail(j, j.getCellPrisonerIsIn(prisoner.getName()), pl.getServer().getPlayerExact(prisoner.getName()), prisoner);
	}
	
	/** Forcefully unjails a {@link Prisoner prisoner} from {@link Jail}. */
	public void forceUnJail(Jail jail, Cell cell, Player player, Prisoner prisoner) {
		if(player == null) {
			//Player is offline, we just forcefully remove them from the database
			pl.getJailIO().removePrisoner(jail, cell, prisoner);
			
			if(cell == null) {
				jail.removePrisoner(prisoner);
			}else {
				cell.removePrisoner();
			}
		}else {
			try {
				unJail(jail, cell, player, prisoner);
			} catch (Exception e) {
				releasePrisoner(player, prisoner);
			}
		}
	}
	
	/**
	 * Transfers the prisoner from one jail, or cell, to another jail, and/or cell.
	 * 
	 * @param originJail The jail where they are coming from.
	 * @param originCell The cell where they are coming from.
	 * @param targetJail The jail we're transferring them from.
	 * @param targetCell The cell we're putting them into.
	 * @param prisoner The prisoner data we're handling.
	 */
	public void transferPrisoner(Jail originJail, Cell originCell, Jail targetJail, Cell targetCell, Prisoner prisoner) {
		Player player = pl.getServer().getPlayer(prisoner.getName());
		
		//If there is no origin cell, then we need to basically just put them to their targetJail
		if(originCell == null) {
			//But first thing is first, let's check if there is a targetCell we're putting them in
			if(targetCell == null) {
				//There is no cell, so we're just going to be putting them into
				//the target jail and that's it
				targetJail.addPrisoner(prisoner);
				//Now then let's remove them from their old jail
				originJail.removePrisoner(prisoner);
				
				//If the player is not online, trigger them to be teleported when they
				//come online again
				if(player == null) {
					//Set them to have an action on offline pending, so it gets triggered
					prisoner.setOfflinePending(true);
					//Now let's set them to be transferred when they come online next
					prisoner.setToBeTransferred(true);
				}else {
					prisoner.setTeleporting(true);
					player.teleport(targetJail.getTeleportIn());
					prisoner.setTeleporting(false);
					player.sendMessage(pl.getJailIO().getLanguageString(LangString.TRANSFERRED, targetJail.getName()));
				}
			}else {
				//They are set to go to the targetCell, so handle accordingly
				targetCell.setPrisoner(prisoner);
				
				//If the player is not online, trigger them to be teleported when they
				//come online again
				if(player == null) {
					//Set them to have an action on offline pending, so it gets triggered
					prisoner.setOfflinePending(true);
					//Now let's set them to be transferred when they come online next
					prisoner.setToBeTransferred(true);
				}else {
					prisoner.setTeleporting(true);
					player.teleport(targetCell.getTeleport());
					prisoner.setTeleporting(false);
					player.sendMessage(pl.getJailIO().getLanguageString(LangString.TRANSFERRED, targetJail.getName()));
				}
			}
		}else {
			//They are being transferred from a cell, so we need to handle getting the inventory
			//and all that sort of stuff from the old cell before we transfer them over to the new cell
			
			//If they're not being sent to a cell any more, handle that differently as well
			if(targetCell == null) {
				//Add them to the target jail
				targetJail.addPrisoner(prisoner);
				//Next, remove them from the cell
				originCell.removePrisoner();
				
				//If the cell they came from has any items from their inventory,
				//let's get it all and store it
				if(originCell.hasChest()) {
					//Convert the inventory to base64 string and store it in the prisoner's file 
					prisoner.setInventory(Util.toBase64(originCell.getChest().getInventory()));
					//Clear the origin cell's inventory so nothing is left behind
					originCell.getChest().getInventory().clear();
				}
			}else {
				//They are being transferred to a cell in another cell,
				//we aren't going to do any sanity checks as we hope the method that is
				//calling this one does those sanity checks for us.
				
				//Set the cell's prisoner to this one
				targetCell.setPrisoner(prisoner);
				//Remove the prisoner from the old one
				originCell.removePrisoner();
				
				//Check if the origin cell has a chest, put all the player's inventory into it
				if(originCell.hasChest()) {
					//If the targetCell has a chest
					if(targetCell.hasChest()) {
						//Loop through the origin's chest inventory and add it to the target cell's chest
						for(ItemStack i : originCell.getChest().getInventory().getContents()) {
							targetCell.getChest().getInventory().addItem(i);
						}
						
						//Clear the origin cell's chest as it is clear now
						originCell.getChest().getInventory().clear();
					}else {
						//targetCell has no chest so we aren't going to try and put anything into it
						
						//Convert the inventory to base64 string and store it in the prisoner's file 
						prisoner.setInventory(Util.toBase64(originCell.getChest().getInventory()));
						//Clear the origin cell's inventory so nothing is left behind
						originCell.getChest().getInventory().clear();
					}
				}
			}
		}
		
		//Throw our custom event PrisonerTransferredEvent to say it was successful
		PrisonerTransferredEvent event = new PrisonerTransferredEvent(originJail, originCell, targetJail, targetCell, prisoner, player);
		pl.getServer().getPluginManager().callEvent(event);
	}
}