package msc.gs.quest;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;

import msc.gs.event.SingleEvent;
import msc.gs.model.ActiveTile;
import msc.gs.model.ChatMessage;
import msc.gs.model.GameObject;
import msc.gs.model.InvItem;
import msc.gs.model.Item;
import msc.gs.model.MenuHandler;
import msc.gs.model.Npc;
import msc.gs.model.Player;
import msc.gs.model.Point;
import msc.gs.model.World;
import msc.gs.util.Logger;

/**
 * Defines a quest script
 * 
 * @author punKrockeR
 */
public abstract class Quest {
    /**
     * Empty constructor
     */
    public Quest() {
    }

    /**
     * The world instance
     */
    protected static final World world = World.getWorld();
    /**
     * The completed flag
     */
    public static final int COMPLETE = 0;
    /**
     * This quest's current thread
     */
    private Thread thread = null;
    /**
     * The list of npcs associated with this quest
     */
    private Set<Integer> associatedNpcs = new HashSet<Integer>();
    /**
     * The list of objects associated with this quest
     */
    private HashMap<java.awt.Point, Point> associatedObjects = new HashMap<java.awt.Point, Point>();
    /**
     * The list of items associated with this quest
     */
    private Set<Integer> associatedItems = new HashSet<Integer>();

    /**
     * Quest initialization
     */
    public void init() {
    }

    /**
     * Used for triggers
     */
    public abstract void handleAction(QuestAction action, Object[] args, Player player);

    /**
     * Sets this thread
     */
    public void setThread(Thread thread) {
	this.thread = thread;
    }

    /**
     * @return this quest's UNIQUE ID - >>MUST<< be unique.
     */
    public abstract int getUniqueID();

    /**
     * @return this quest's name
     */
    public abstract String getName();

    /**
     * The default sleep time
     */
    private static long DEFAULT_DELAY = 3200;

    /**
     * Adds the given npc id to the list of npc ids associated with this quest
     */
    public void associateNpc(int id) {
    	associatedNpcs.add(id);
    }

    /**
     * Adds the given item id to the list of item ids associated with this quest
     */
    public void associateItem(int id) {
    	associatedItems.add(id);
    }

    /**
     * Adds the given object id to the list of object ids associated with this
     * quest
     */
    public void associateObject(int id, int x, int y) {
    	associatedObjects.put(new java.awt.Point(id, associatedObjects.size()), Point.location(x, y));
    }

    /**
     * Adds the given object id to the list of object ids associated with this
     * quest
     */
    public void associateObject(int id) {
    	associatedObjects.put(new java.awt.Point(id, associatedObjects.size()), Point.location(0, 0));
    }

    /**
     * @return if the given npc id is associated with this quest
     */
    public boolean isNpcAssociated(int id, Player player) {
    	return associatedNpcs.contains(id);
    }

    /**
     * @return if the given item id is associated with this quest
     */
    public boolean isItemAssociated(int id, Player player) {
    	return associatedItems.contains(id);
    }

    /**
     * @return if the given object id is associated with this quest
     */
    public boolean isObjectAssociated(GameObject obj, Player player) {
		java.util.Set<java.awt.Point> set = associatedObjects.keySet();
		for (java.awt.Point p : set) {
		    int i = (int) p.getX();
		    if (i == obj.getID())
			if (Point.location(obj.getX(), obj.getY()).equals(associatedObjects.get(p)) || (associatedObjects.get(p).getX() == 0 && associatedObjects.get(p).getY() == 0)) {
				Logger.println("obj id " + i + " is associated with quest " + getName());
			    return true;
			} else
				Logger.println("obj id " + i + " is NOT associated with quest " + getName());
		}
		return false;
    }

    /**
     * Sends a quest message to the player
     */
    public void sendMessage(Player player, String message) {
    	player.getActionSender().sendMessage("@que@" + message);
    }

    /**
     * Inform of npc chat
     */
    public void sendChat(String msg, Npc npc, Player player) {
    	sendChat(msg, npc, player, DEFAULT_DELAY);
    }

    /**
     * Inform of npc chat
     */
    public void sendChat(String msg, Npc npc, Player player, long delay) {
	try {
	    if (player != null && npc != null)
		npc.blockedBy(player);
	} catch (java.util.ConcurrentModificationException cme) {
	} catch (Exception e) {
	    e.printStackTrace();
	}

	player.informOfNpcMessage(new ChatMessage(npc, msg, player));
	sleep(delay);
    }

    /**
     * Inform of player chat
     */
    public void sendChat(String msg, Player player, Npc npc) {
	sendChat(msg, player, npc, DEFAULT_DELAY);
    }

    /**
     * Inform of player chat
     */
    public void sendChat(String msg, Player player, Npc npc, long delay) {
	try {
	    if (player != null && npc != null)
		npc.blockedBy(player);
	} catch (java.util.ConcurrentModificationException cme) {
	} catch (Exception e) {
	    e.printStackTrace();
	}

	player.informOfChatMessage(new ChatMessage(player, msg, npc));
	sleep(delay);
    }

    /**
     * Adds the given short event
     */
    public void addSingleEvent(SingleEvent event) {
	world.getDelayedEventHandler().add(event);
    }

    /**
     * @return if the given NPC is visible to the player
     */
    public boolean isNpcVisible(Npc npc, Player player) {
	return true;
    }

    /**
     * @return if the given NPC is shootable
     */
    public boolean isNpcShootable(Npc npc, Player player) {
	return true;
    }

    /**
     * @return if the given Item is visible to the player
     */
    public boolean isItemVisible(Item item, Player player) {
	return true;
    }

    /**
     * @return if this quest is to be loaded or not (used for when a quest is
     *         not finished yet, and shouldn't be loaded)
     */
    public boolean loadQuest() {
	return true;
    }

    /**
     * Pauses the quest for 'ms' milliseconds
     */
    public void sleep(long ms) {
		if (ms <= 0)
		    return;
	
		try {
		    thread.sleep(ms);
		} catch (InterruptedException e) {}
    }

    /**
     * Sleeps for the DEFAULT time
     */
    public void sleep() {
	sleep(DEFAULT_DELAY);
    }

    /**
     * Sets the default delay
     */
    public void setDefaultDelay(long l) {
	DEFAULT_DELAY = l;
    }

    /**
     * @return which option the player chooses out of the given menu
     */
    public int getMenuOption(final Player player, long timeout, String... menu) {
	player.setLastQuestMenuReply(-1);
	player.getActionSender().sendMenu(menu);
	player.setMenuHandler(new MenuHandler(menu) {
	    public void handleReply(int option, String reply) {
		player.setLastQuestMenuReply(option);
		sendChat(reply, player, null, 0);
	    }
	});

	long start = System.currentTimeMillis();
	while (player.getLastQuestMenuReply() == -1 && (System.currentTimeMillis() - start) <= timeout) {
	    if (player.getLastQuestMenuReply() == -2)
		return -1;
	    sleep(10);
	}

	return player.getLastQuestMenuReply();
    }

    /**
     * @return which option the player chooses out of the given menu
     */
    public int getMenuOption(final Player player, String... menu) {
	return getMenuOption(player, 30000, menu); // 30 sec default timeout
    }

    /**
     * Queues the given player-to-npc chat
     */
    public void queueChat(Player player, Npc npc, long delay, String... chat) {
	int idx = 0;
	while (idx < chat.length)
	    sendChat(chat[idx++], player, npc);
    }

    /**
     * Queues the given player-to-npc chat
     */
    public void queueChat(Player player, Npc npc, String... chat) {
	queueChat(player, npc, DEFAULT_DELAY, chat);
    }

    /**
     * Queues the given npc-to-player chat
     */
    public void queueChat(Npc npc, Player player, long delay, String... chat) {
	int idx = 0;
	while (idx < chat.length)
	    sendChat(chat[idx++], npc, player);
    }

    /**
     * Queues the given player-to-npc chat
     */
    public void queueChat(Npc npc, Player player, String... chat) {
	queueChat(npc, player, DEFAULT_DELAY, chat);
    }

    /**
     * @return if the player is wielding the given item id
     */
    public boolean isWielding(Player player, int id) {
	return player.getInventory().wielding(id);
    }

    /**
     * Adds the given InvItems to the player's inventory
     */
    public void giveItem(Player player, InvItem... items) {
	boolean coins = false;

	for (InvItem i : items) {
	    player.getInventory().add(i);

	    if (i.getID() == 10)
		coins = true;
	}

	player.getActionSender().sendSound(coins ? "coins" : "click");
	player.getActionSender().sendInventory();
    }

    /**
     * Adds the given item ids to the player's inventory
     */
    public void giveItem(Player player, int... ids) {
	boolean coins = false;

	for (int i : ids) {
	    player.getInventory().add(new InvItem(i, 1));

	    if (i == 10)
		coins = true;
	}

	player.getActionSender().sendSound(coins ? "coins" : "click");
	player.getActionSender().sendInventory();
    }

    /**
     * Removes the given InvItems from the player's inventory
     */
    public void takeItem(Player player, InvItem... items) {
	boolean coins = false;

	for (InvItem i : items) {
	    player.getInventory().remove(i);

	    if (i.getID() == 10)
		coins = true;
	}

	player.getActionSender().sendSound(coins ? "coins" : "click");
	player.getActionSender().sendInventory();
    }

    /**
     * Removes the given item ids from the player's inventory
     */
    public void takeItem(Player player, int... ids) {
	boolean coins = false;

	for (int i : ids) {
	    player.getInventory().remove(new InvItem(i, 1));

	    if (i == 10)
		coins = true;
	}

	player.getActionSender().sendSound(coins ? "coins" : "click");
	player.getActionSender().sendInventory();
    }

    /**
     * @return if the player has the given InvItem
     */
    public boolean hasItem(Player player, InvItem... items) {
	boolean has = true;

	for (InvItem i : items) {
	    if (!player.getInventory().hasItemId(i.getID())) {
		has = false;
		break;
	    }
	}

	return has;
    }

    /**
     * @return if the player has the given item ids
     */
    public boolean hasItem(Player player, int... items) {
	boolean has = true;

	for (int i : items) {
	    if (!player.getInventory().hasItemId(i)) {
		has = false;
		break;
	    }
	}

	return has;
    }

    /**
     * @return the amount of the given item the player has
     */
    public int countItem(Player player, InvItem item) {
	return player.getInventory().countId(item.getID());
    }

    /**
     * @return the amount of the given item id the player has
     */
    public int countItem(Player player, int id) {
	return player.getInventory().countId(id);
    }

    /**
     * @return if the player has the given item in his inventory, bank or if
     *         it's on the ground somewhere
     */
    public boolean hasItemAbs(Player player, int id) {
	if (player.getInventory().hasItemId(id))
	    return true;

	if (player.getBank().hasItemId(id))
	    return true;

	ActiveTile[][] tiles = player.getViewArea().getViewedArea(20, 20, 20, 20);
	for (int x = 0; x < tiles.length; x++) {
	    for (int y = 0; y < tiles[x].length; y++) {
		ActiveTile t = tiles[x][y];
		if (t != null) {
		    for (Item i : t.getItems()) {
			if (i.getID() == id) {
			    if (i.getOwner().equals(player))
				return true;
			}
		    }
		}
	    }
	}

	return false;
    }

    /**
     * Sets this quest's stage
     */
    public void setStage(Player player, int stage) {
	player.setQuestStage(getUniqueID(), stage);
    }

    /**
     * @return this quest's stage
     */
    public int getQuestStage(Player player) {
	return player.getQuestStage(getUniqueID());
    }
}