// $Id$
/*
 * WorldEdit
 * Copyright (C) 2010 sk89q <http://www.sk89q.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.sk89q.worldedit.commands;

import com.sk89q.minecraft.util.commands.Command;
import com.sk89q.minecraft.util.commands.CommandContext;
import com.sk89q.minecraft.util.commands.CommandPermissions;
import com.sk89q.minecraft.util.commands.NestedCommand;
import com.sk89q.worldedit.*;
import com.sk89q.worldedit.blocks.ItemType;

/**
 * General WorldEdit commands.
 * 
 * @author sk89q
 */
public class GeneralCommands {
    @Command(
        aliases = {"/limit"},
        usage = "<limit>",
        desc = "Modify block change limit",
        min = 1,
        max = 1
    )
    @CommandPermissions({"worldedit.limit"})
    public static void limit(CommandContext args, WorldEdit we,
            LocalSession session, LocalPlayer player, EditSession editSession)
            throws WorldEditException {
        
        LocalConfiguration config = we.getConfiguration();

        int limit = Math.max(-1, args.getInteger(0));
        if (!player.hasPermission("worldedit.limit.unrestricted")
                && config.maxChangeLimit > -1) {
            if (limit > config.maxChangeLimit) {
                player.printError("Your maximum allowable limit is "
                        + config.maxChangeLimit + ".");
                return;
            }
        }
        
        session.setBlockChangeLimit(limit);
        player.print("Block change limit set to " + limit + ".");
    }

    @Command(
        aliases = {"/fast"},
        usage = "",
        desc = "Toggle fast mode",
        min = 0,
        max = 0
    )
    @CommandPermissions({"worldedit.fast"})
    public static void fast(CommandContext args, WorldEdit we,
            LocalSession session, LocalPlayer player, EditSession editSession)
            throws WorldEditException {
        
        session.setFastMode(!session.hasFastMode());
        
        if (session.hasFastMode()) {
            player.print("Fast mode enabled. You may need to rejoin to see changes.");
        } else {
            player.print("Fast mode disabled.");
        }
    }

    @Command(
        aliases = {"toggleplace"},
        usage = "",
        desc = "",
        min = 0,
        max = 0
    )
    public static void togglePlace(CommandContext args, WorldEdit we,
            LocalSession session, LocalPlayer player, EditSession editSession)
            throws WorldEditException {

        if (session.togglePlacementPosition()) {
            player.print("Now placing at pos #1.");
        } else {
            player.print("Now placing at the block you stand in.");
        }
    }

    @Command(
        aliases = {"searchitem", "/l", "search"},
        usage = "<query>",
        flags = "bi",
        desc = "Search for an item",
        min = 1,
        max = 1
    )
    public static void searchItem(CommandContext args, WorldEdit we,
            LocalSession session, LocalPlayer player, EditSession editSession)
            throws WorldEditException {
        
        String query = args.getString(0).trim().toLowerCase();
        boolean blocksOnly = args.hasFlag('b');
        boolean itemsOnly = args.hasFlag('i');
        
        try {
            int id = Integer.parseInt(query);
            
            ItemType type = ItemType.fromID(id);
            
            if (type != null) {
                player.print("#" + type.getID() + " (" + type.getName() + ")");
            } else {
                player.printError("No item found by ID " + id);
            }
            
            return;
        } catch (NumberFormatException e) {
        }
        
        if (query.length() <= 2) {
            player.printError("Enter a longer search string (len > 2).");
            return;
        }
        
        if (!blocksOnly && !itemsOnly) {
            player.print("Searching for: " + query);
        } else if (blocksOnly && itemsOnly) {
            player.printError("You cannot use both the 'b' and 'i' flags simultaneously.");
            return;
        } else if (blocksOnly) {
            player.print("Searching for blocks: " + query);
        } else {
            player.print("Searching for items: " + query);
        }
        
        int found = 0;
        
        for (ItemType type : ItemType.values()) {
            if (found >= 15) {
                player.print("Too many results!");
                break;
            }
            
            if (blocksOnly && type.getID() > 255) {
                continue;
            }
            
            if (itemsOnly && type.getID() <= 255) {
                continue;
            }
            
            for (String alias : type.getAliases()) {
                if (alias.contains(query)) {
                    player.print("#" + type.getID() + " (" + type.getName() + ")");
                    found++;
                    break;
                }
            }
        }
        
        if (found == 0) {
            player.printError("No items found.");
        }
    }

    @Command(
        aliases = {"we", "worldedit"},
        desc = "WorldEdit commands"
    )
    @NestedCommand({WorldEditCommands.class})
    public static void we(CommandContext args, WorldEdit we,
            LocalSession session, LocalPlayer player, EditSession editSession)
            throws WorldEditException {
    }
}