// $Id$
/*
 * 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.blocks;

import java.util.Map;
import java.util.HashMap;
import java.util.EnumSet;

/**
 * Block types.
 *
 * @author sk89q
 */
public enum BlockType {
    AIR(0, "Air", "air"),
    STONE(1, "Stone", new String[]{"stone", "rock"}),
    GRASS(2, "Grass", "grass"),
    DIRT(3, "Dirt", "dirt"),
    COBBLESTONE(4, "Cobblestone", new String[]{"cobblestone", "cobble"}),
    WOOD(5, "Wood", "wood"),
    SAPLING(6, "Sapling", "sapling"),
    BEDROCK(7, "Bedrock", new String[]{"adminium", "bedrock"}),
    WATER(8, "Water", "watermoving"),
    STATIONARY_WATER(9, "Water (stationary)", "water"),
    LAVA(10, "Lava", "lavamoving"),
    STATIONARY_LAVA(11, "Lava (stationary)", "lava"),
    SAND(12, "Sand", "sand"),
    GRAVEL(13, "Gravel", "gravel"),
    GOLD_ORE(14, "Gold ore", "goldore"),
    IRON_ORE(15, "Iron ore", "ironore"),
    COAL_ORE(16, "Coal ore", "coalore"),
    LOG(17, "Log", new String[]{"log", "tree", "pine", "oak", "birch"}),
    LEAVES(18, "Leaves", new String[]{"leaves", "leaf"}),
    SPONGE(19, "Sponge", "sponge"),
    GLASS(20, "Glass", "glass"),
    LAPIS_LAZULI_ORE(21, "Lapis lazuli ore", new String[]{"lapislazuliore", "blueore"}),
    LAPIS_LAZULI(22, "Lapis lazuli", new String[]{"lapislazuli", "lapislazuliblock", "blue", "bluerock"}),
    DISPENSER(23, "Dispenser", "dispenser"),
    SANDSTONE(24, "Sandstone", "sandstone"),
    NOTE_BLOCK(25, "Note block", new String[]{"musicblock", "noteblock", "note", "music", "instrument"}),
    CLOTH(35, "Cloth", "cloth"),
    YELLOW_FLOWER(37, "Yellow flower", "yellowflower"),
    RED_FLOWER(38, "Red rose", new String[]{"redflower", "redrose"}),
    BROWN_MUSHROOM(39, "Brown mushroom", new String[]{"brownmushroom", "mushroom"}),
    RED_MUSHROOM(40, "Red mushroom", "redmushroom"),
    GOLD_BLOCK(41, "Gold block", new String[]{"gold", "goldblock"}),
    IRON_BLOCK(42, "Iron block", new String[]{"iron", "ironblock"}),
    DOUBLE_STEP(43, "Double step", new String[]{"doubleslab", "doublestoneslab", "doublestep"}),
    STEP(44, "Step", new String[]{"slab", "stoneslab", "step"}),
    BRICK(45, "Brick", new String[]{"brick", "brickblock"}),
    TNT(46, "TNT", "tnt"),
    BOOKCASE(47, "Bookcase", new String[]{"bookshelf", "bookshelves"}),
    MOSSY_COBBLESTONE(48, "Cobblestone (mossy)", new String[]{"mossycobblestone", "mossstone", "mossystone", "mosscobble", "mossycobble"}),
    OBSIDIAN(49, "Obsidian", "obsidian"),
    TORCH(50, "Torch", "torch"),
    FIRE(51, "Fire", "fire"),
    MOB_SPAWNER(52, "Mob spawner", "mobspawner"),
    WOODEN_STAIRS(53, "Wooden stairs", new String[]{"woodstair", "woodstairs", "woodenstair", "woodenstairs"}),
    CHEST(54, "Chest", "chest"),
    REDSTONE_WIRE(55, "Redstone wire", "redstone"),
    DIAMOND_ORE(56, "Diamond ore", "diamondore"),
    DIAMOND_BLOCK(57, "Diamond block", new String[]{"diamond", "diamondblock"}),
    WORKBENCH(58, "Workbench", new String[]{"workbench", "table", "craftingtable"}),
    CROPS(59, "Crops", new String[]{"crops", "crop", "plant", "plants"}),
    SOIL(60, "Soil", "soil"),
    FURNACE(61, "Furnace", "furnace"),
    BURNING_FURNACE(62, "Furnace (burning)", "burningfurnace"),
    SIGN_POST(63, "Sign post", new String[]{"sign", "signpost"}),
    WOODEN_DOOR(64, "Wooden door", new String[]{"wooddoor", "woodendoor"}),
    LADDER(65, "Ladder", "ladder"),
    MINECART_TRACKS(66, "Minecart tracks", new String[]{"track", "tracks", "minecrattrack", "minecarttracks"}),
    COBBLESTONE_STAIRS(67, "Cobblestone stairs", new String[]{"cobblestonestair", "cobblestonestairs", "cobblestair", "cobblestairs"}),
    WALL_SIGN(68, "Wall sign", "wallsign"),
    LEVER(69, "Lever", "lever"),
    STONE_PRESSURE_PLATE(70, "Stone pressure plate", new String[]{"stonepressureplate", "stoneplate"}),
    IRON_DOOR(71, "Iron Door", "irondoor"),
    WOODEN_PRESSURE_PLATE(72, "Wooden pressure plate", new String[]{"woodpressureplate", "woodplate", "woodenpressureplate", "woodenplate"}),
    REDSTONE_ORE(73, "Redstone ore", "redstoneore"),
    GLOWING_REDSTONE_ORE(74, "Glowing redstone ore", "glowingredstoneore"),
    REDSTONE_TORCH_OFF(75, "Redstone torch (off)",
            new String[]{"redstonetorch"," redstonetorchoff", "rstorch"}),
    REDSTONE_TORCH_ON(76, "Redstone torch (on)", "redstonetorchon"),
    STONE_BUTTON(77, "Stone Button", "stonebutton"),
    SNOW(78, "Snow", "snow"),
    ICE(79, "Ice", "ice"),
    SNOW_BLOCK(80, "Snow block", "snowblock"),
    CACTUS(81, "Cactus", "cactus"),
    CLAY(82, "Clay", "clay"),
    SUGAR_CANE(83, "Reed", new String[]{"reed", "cane", "sugarcane", "sugarcanes"}),
    JUKEBOX(84, "Jukebox", "jukebox"),
    FENCE(85, "Fence", "fence"),
    PUMPKIN(86, "Pumpkin", "pumpkin"),
    NETHERRACK(87, "Netherrack", new String[]{"redmossycobblestone", "redcobblestone", "redmosstone", "redcobble", "netherstone", "netherrack", "nether"}),
    SOUL_SAND(88, "Soul sand", new String[]{"slowmud", "mud", "soulsand"}),
    GLOWSTONE(89, "Glowstone", new String[]{"brittlegold", "glowstone", "lightstone"}),
    PORTAL(90, "Portal", "portal"),
    JACK_O_LANTERN(91, "Pumpkin (on)", new String[]{"pumpkinlighted", "pumpkinon", "litpumpkin"}),
    CAKE(92, "Cake", "Cake");

    /**
     * Stores a list of dropped blocks for blocks.
     */
    private static final Map<Integer,Integer> blockDrops = new HashMap<Integer,Integer>();

    /**
     * Static constructor.
     */
    static {
        blockDrops.put(1, 4);
        blockDrops.put(2, 3);
        blockDrops.put(3, 3);
        blockDrops.put(4, 4);
        blockDrops.put(5, 5);
        blockDrops.put(6, 6);
        blockDrops.put(7, -1);
        blockDrops.put(12, 12);
        blockDrops.put(13, 13);
        blockDrops.put(14, 14);
        blockDrops.put(15, 15);
        blockDrops.put(16, 16);
        blockDrops.put(17, 17);
        blockDrops.put(18, 18);
        blockDrops.put(19, 19);
        blockDrops.put(20, 20); // Have to drop glass for //undo
        blockDrops.put(21, 21); // Block damage drops not implemented
        blockDrops.put(22, 22);
        blockDrops.put(23, 23);
        blockDrops.put(24, 24);
        blockDrops.put(25, 25);
        blockDrops.put(35, 35);
        blockDrops.put(37, 37);
        blockDrops.put(38, 38);
        blockDrops.put(39, 39);
        blockDrops.put(40, 40);
        blockDrops.put(41, 41);
        blockDrops.put(42, 42);
        blockDrops.put(43, 43);
        blockDrops.put(44, 44);
        blockDrops.put(45, 45);
        blockDrops.put(47, 47);
        blockDrops.put(48, 48);
        blockDrops.put(49, 49);
        blockDrops.put(50, 50);
        blockDrops.put(53, 53);
        blockDrops.put(54, 54);
        blockDrops.put(55, 331);
        blockDrops.put(56, 56);
        blockDrops.put(57, 57);
        blockDrops.put(58, 58);
        blockDrops.put(59, 295);
        blockDrops.put(60, 60);
        blockDrops.put(61, 61);
        blockDrops.put(62, 61);
        blockDrops.put(63, 323);
        blockDrops.put(64, 324);
        blockDrops.put(65, 65);
        blockDrops.put(66, 66);
        blockDrops.put(67, 67);
        blockDrops.put(68, 323);
        blockDrops.put(69, 69);
        blockDrops.put(70, 70);
        blockDrops.put(71, 330);
        blockDrops.put(72, 72);
        blockDrops.put(73, 331);
        blockDrops.put(74, 331);
        blockDrops.put(75, 76);
        blockDrops.put(76, 76);
        blockDrops.put(77, 77);
        blockDrops.put(80, 80);
        blockDrops.put(81, 81);
        blockDrops.put(82, 82);
        blockDrops.put(83, 83);
        blockDrops.put(84, 84);
        blockDrops.put(85, 85);
        blockDrops.put(86, 86);
        blockDrops.put(87, 87);
        blockDrops.put(88, 88);
        blockDrops.put(89, 248);
        blockDrops.put(91, 91);
    }

    /**
     * Stores a map of the IDs for fast access.
     */
    private static final Map<Integer,BlockType> ids = new HashMap<Integer,BlockType>();
    /**
     * Stores a map of the names for fast access.
     */
    private static final Map<String,BlockType> lookup = new HashMap<String,BlockType>();

    private final int id;
    private final String name;
    private final String[] lookupKeys;

    static {
        for(BlockType type : EnumSet.allOf(BlockType.class)) {
            ids.put(type.id, type);
            for (String key : type.lookupKeys) {
                lookup.put(key, type);
            }
        }
    }


    /**
     * Construct the type.
     *
     * @param id
     * @param name
     */
    BlockType(int id, String name, String lookupKey) {
        this.id = id;
        this.name = name;
        this.lookupKeys = new String[]{lookupKey};
    }

    /**
     * Construct the type.
     *
     * @param id
     * @param name
     */
    BlockType(int id, String name, String[] lookupKeys) {
        this.id = id;
        this.name = name;
        this.lookupKeys = lookupKeys;
    }

    /**
     * Return type from ID. May return null.
     *
     * @param id
     * @return
     */
    public static BlockType fromID(int id) {
        return ids.get(id);
    }

    /**
     * Return type from name. May return null.
     *
     * @param name
     * @return
     */
    public static BlockType lookup(String name) {
        return lookup.get(name.toLowerCase());
    }

    /**
     * Get block numeric ID.
     *
     * @return
     */
    public int getID() {
        return id;
    }

    /**
     * Get user-friendly block name.
     *
     * @return
     */
    public String getName() {
        return name;
    }

    /**
     * Checks to see whether a block should be placed last.
     *
     * @param id
     * @return
     */
    public boolean shouldPlaceLast() {
        return shouldPlaceLast(id);
    }

    /**
     * Checks to see whether a block should be placed last.
     * 
     * @param id
     * @return
     */
    public static boolean shouldPlaceLast(int id) {
        return id == 6 // Saplings
                || id == 37 // Yellow flower
                || id == 38 // Red flower
                || id == 39 // Brown mushroom
                || id == 40 // Red mush room
                || id == 50 // Torch
                || id == 51 // Fire
                || id == 55 // Redstone wire
                || id == 59 // Crops
                || id == 63 // Sign post
                || id == 64 // Wooden door
                || id == 65 // Ladder
                || id == 66 // Minecart tracks
                || id == 68 // Wall sign
                || id == 69 // Lever
                || id == 70 // Stone pressure plate
                || id == 71 // Iron door
                || id == 72 // Wooden pressure plate
                || id == 75 // Redstone torch (off)
                || id == 76 // Redstone torch (on)
                || id == 77 // Stone button
                || id == 78 // Snow
                || id == 81 // Cactus
                || id == 83 // Reed
                || id == 90; // Portal
    }

    /**
     * Checks whether a block can be passed through.
     *
     * @param id
     * @return
     */
    public static boolean canPassThrough(int id) {
        return id == 0 // Air
                || id == 8 // Water
                || id == 9 // Water
                || id == 6 // Saplings
                || id == 37 // Yellow flower
                || id == 38 // Red flower
                || id == 39 // Brown mushroom
                || id == 40 // Red mush room
                || id == 50 // Torch
                || id == 51 // Fire
                || id == 55 // Redstone wire
                || id == 59 // Crops
                || id == 63 // Sign post
                || id == 65 // Ladder
                || id == 66 // Minecart tracks
                || id == 68 // Wall sign
                || id == 69 // Lever
                || id == 70 // Stone pressure plate
                || id == 72 // Wooden pressure plate
                || id == 75 // Redstone torch (off)
                || id == 76 // Redstone torch (on)
                || id == 77 // Stone button
                || id == 78 // Snow
                || id == 83 // Reed
                || id == 90; // Portal
    }

    /**
     * Returns true if the block uses its data value.
     * 
     * @param id
     * @return
     */
    public static boolean usesData(int id) {
        return id == 6 // Saplings
                || id == 8 // Water
                || id == 9 // Water
                || id == 10 // Lava
                || id == 11 // Lava
                || id == 17 // Wood
                || id == 18 // Leaves
                || id == 23 // Dispenser
                || id == 35 // Wool
                || id == 50 // Torch
                || id == 53 // Wooden stairs
                || id == 55 // Redstone wire
                || id == 59 // Crops
                || id == 60 // Soil
                || id == 61 // Furnace
                || id == 62 // Furnace
                || id == 63 // Sign post
                || id == 64 // Wooden door
                || id == 65 // Ladder
                || id == 66 // Minecart track
                || id == 67 // Cobblestone stairs
                || id == 68 // Wall sign
                || id == 69 // Lever
                || id == 70 // Stone pressure plate
                || id == 71 // Iron door
                || id == 72 // Wooden pressure plate
                || id == 75 // Redstone torch (off)
                || id == 76 // Redstone torch (on)
                || id == 77 // Stone button
                || id == 81 // Cactus
                || id == 86 // Pumpkin
                || id == 91; // Jack-o-lantern
    }

    /**
     * Get the block or item that would have been dropped. If nothing is
     * dropped, 0 will be returned. If the block should not be destroyed
     * (i.e. bedrock), -1 will be returned.
     * 
     * @param id
     * @return
     */
    public static int getDroppedBlock(int id) {
        Integer dropped = blockDrops.get(id);
        if (dropped == null) {
            return 0;
        }
        return dropped;
    }
}