LibsDisguises/src/me/libraryaddict/disguise/BaseDisguiseCommand.java

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package me.libraryaddict.disguise;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import me.libraryaddict.disguise.disguisetypes.AnimalColor;
import me.libraryaddict.disguise.disguisetypes.Disguise;
import me.libraryaddict.disguise.disguisetypes.DisguiseType;
import me.libraryaddict.disguise.disguisetypes.MiscDisguise;
import me.libraryaddict.disguise.disguisetypes.MobDisguise;
import me.libraryaddict.disguise.disguisetypes.PlayerDisguise;
import org.bukkit.ChatColor;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Horse.Color;
import org.bukkit.entity.Horse.Style;
import org.bukkit.entity.Ocelot.Type;
import org.bukkit.entity.Villager.Profession;
import org.bukkit.inventory.ItemStack;
import org.bukkit.potion.PotionEffectType;
public abstract class BaseDisguiseCommand implements CommandExecutor {
protected ArrayList<String> getAllowedDisguises(CommandSender sender, String permissionNode) {
ArrayList<String> names = new ArrayList<String>();
for (DisguiseType type : DisguiseType.values()) {
String name = type.name().toLowerCase();
if (sender.hasPermission("libsdisguises." + permissionNode + ".*")
|| sender.hasPermission("libsdisguises." + permissionNode + "." + name))
names.add(name);
}
Collections.sort(names, String.CASE_INSENSITIVE_ORDER);
return names;
}
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protected boolean isDouble(String string) {
try {
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Float.parseFloat(string);
return true;
} catch (Exception ex) {
return false;
}
}
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protected boolean isNumeric(String string) {
try {
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Integer.parseInt(string);
return true;
} catch (Exception ex) {
return false;
}
}
/**
* Returns the disguise if it all parsed correctly. Returns a exception with a complete message if it didn't. The
* commandsender is purely used for checking permissions. Would defeat the purpose otherwise. To reach this point, the
* disguise has been feed a proper disguisetype.
*/
protected Disguise parseDisguise(CommandSender sender, String[] args) throws Exception {
String permissionNode = getClass().getSimpleName().replace("Command", "").toLowerCase();
ArrayList<String> allowedDisguises = getAllowedDisguises(sender, permissionNode);
if (allowedDisguises.isEmpty()) {
throw new Exception(ChatColor.RED + "You are forbidden to use this command.");
}
if (args.length == 0) {
sendCommandUsage(sender);
throw new Exception();
}
DisguiseType disguiseType = null;
for (DisguiseType type : DisguiseType.values()) {
if (args[0].equalsIgnoreCase(type.name()) || type.name().replace("_", "").equalsIgnoreCase(args[0])) {
disguiseType = type;
break;
}
}
if (disguiseType == null) {
throw new Exception(ChatColor.RED + "Error! The disguise " + ChatColor.GREEN + args[0] + ChatColor.RED
+ " doesn't exist!");
}
if (!allowedDisguises.contains(disguiseType.name().toLowerCase())) {
throw new Exception(ChatColor.RED + "You are forbidden to use this disguise!");
}
Disguise disguise = null;
// How many args to skip due to the disugise being constructed
int toSkip = 1;
// Time to start constructing the disguise.
// We will need to check between all 3 kinds of disguises
if (disguiseType.isPlayer()) {// If he is doing a player disguise
if (args.length == 1) {
// He needs to give the player name
throw new Exception(ChatColor.RED + "Error! You need to give a player name!");
} else {
// Construct the player disguise
disguise = new PlayerDisguise(ChatColor.translateAlternateColorCodes('&', args[1]));
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toSkip++;
}
} else {
if (disguiseType.isMob()) { // Its a mob, use the mob constructor
boolean adult = true;
if (args.length > 1) {
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if (args[1].equalsIgnoreCase("true") || args[1].equalsIgnoreCase("false")) {
adult = "false".equalsIgnoreCase(args[1]);
toSkip++;
}
}
disguise = new MobDisguise(disguiseType, adult);
} else if (disguiseType.isMisc()) {
// Its a misc, we are going to use the MiscDisguise constructor.
int miscId = -1;
int miscData = -1;
if (args.length > 1) {
// They have defined more arguements!
// If the first arg is a number
if (isNumeric(args[1])) {
miscId = Integer.parseInt(args[1]);
toSkip++;
// If they also defined a data value
if (args.length > 2) {
if (isNumeric(args[2])) {
miscData = Integer.parseInt(args[2]);
toSkip++;
}
}
}
}
// Construct the disguise
disguise = new MiscDisguise(disguiseType, true, miscId, miscData);
}
}
// Copy strings to their new range
String[] newArgs = new String[args.length - toSkip];
for (int i = toSkip; i < args.length; i++) {
newArgs[i - toSkip] = args[i];
}
args = newArgs;
// Don't throw a error about uneven methods names and values so we can throw the error about what is unknown later.
for (int i = 0; i < args.length; i += 2) {
String methodName = args[i];
if (i + 1 >= args.length) {
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throw new Exception(ChatColor.RED + "No value was given for the option " + methodName);
}
String valueString = args[i + 1];
Method methodToUse = null;
Object value = null;
for (Method method : disguise.getWatcher().getClass().getMethods()) {
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if (!method.getName().startsWith("get") && method.getName().equalsIgnoreCase(methodName)) {
methodToUse = method;
methodName = method.getName();
Class<?>[] types = method.getParameterTypes();
if (types.length == 1) {
Class param = types[0];
// Parse to number
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if (float.class == param || double.class == param || int.class == param) {
if (isDouble(valueString)) {
float obj = Float.parseFloat(valueString);
if (param == float.class) {
value = (float) obj;
} else if (param == int.class) {
value = (int) obj;
} else if (param == double.class) {
value = (double) obj;
}
} else {
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throw parseToException("number", valueString, methodName);
}
// Parse to boolean
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} else if (boolean.class == param) {
if (!("true".equalsIgnoreCase(valueString) || "false".equalsIgnoreCase(valueString)))
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throw parseToException("true/false", valueString, methodName);
value = (boolean) "true".equalsIgnoreCase(valueString);
// Parse to string
} else if (param == String.class) {
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value = ChatColor.translateAlternateColorCodes('&', valueString);
// Parse to animal color
} else if (param == AnimalColor.class) {
try {
value = AnimalColor.valueOf(valueString.toUpperCase());
} catch (Exception ex) {
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throw parseToException("animal color", valueString, methodName);
}
// Parse to itemstack
} else if (param == ItemStack.class) {
try {
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value = parseToItemstack(valueString);
} catch (Exception ex) {
throw new Exception(String.format(ex.getMessage(), methodName));
}
// Parse to itemstack array
} else if (param == ItemStack[].class) {
ItemStack[] items = new ItemStack[4];
String[] split = valueString.split(",");
if (split.length == 4) {
for (int a = 0; a < 4; a++) {
try {
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ItemStack item = parseToItemstack(split[a]);
items[a] = item;
} catch (Exception ex) {
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throw parseToException("item ID,ID,ID,ID" + ChatColor.RED + " or " + ChatColor.GREEN
+ "ID:Data,ID:Data,ID:Data,ID:Data combo", valueString, methodName);
}
}
} else {
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throw parseToException("item ID,ID,ID,ID" + ChatColor.RED + " or " + ChatColor.GREEN
+ "ID:Data,ID:Data,ID:Data,ID:Data combo", valueString, methodName);
}
value = items;
// Parse to horse color
} else if (param == Color.class) {
try {
value = Color.valueOf(valueString.toUpperCase());
} catch (Exception ex) {
throw parseToException("horse color", valueString, methodName);
}
// Parse to horse style
} else if (param == Style.class) {
try {
value = Style.valueOf(valueString.toUpperCase());
} catch (Exception ex) {
throw parseToException("horse style", valueString, methodName);
}
// Parse to villager profession
} else if (param == Profession.class) {
try {
value = Profession.valueOf(valueString.toUpperCase());
} catch (Exception ex) {
throw parseToException("villager profession", valueString, methodName);
}
// Parse to ocelot type
} else if (param == Type.class) {
try {
value = Type.valueOf(valueString.toUpperCase());
} catch (Exception ex) {
throw parseToException("ocelot type", valueString, methodName);
}
// Parse to potion effect
} else if (param == PotionEffectType.class) {
try {
PotionEffectType potionType = PotionEffectType.getByName(valueString.toUpperCase());
if (potionType == null && isNumeric(valueString)) {
potionType = PotionEffectType.getById(Integer.parseInt(valueString));
}
if (potionType == null)
throw new Exception();
value = potionType;
} catch (Exception ex) {
throw parseToException("potioneffect type", valueString, methodName);
}
}
}
break;
}
}
if (methodToUse == null) {
throw new Exception(ChatColor.RED + "Cannot find the option " + methodName);
}
methodToUse.invoke(disguise.getWatcher(), value);
}
// Alright. We've constructed our disguise.
return disguise;
}
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private Exception parseToException(String expectedValue, String receivedInstead, String methodName) {
return new Exception(ChatColor.RED + "Expected " + ChatColor.GREEN + expectedValue + ChatColor.RED + ", received "
+ ChatColor.GREEN + receivedInstead + ChatColor.RED + " instead for " + ChatColor.GREEN + methodName);
}
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private ItemStack parseToItemstack(String string) throws Exception {
String[] split = string.split(":", -1);
if (isNumeric(split[0])) {
int itemId = Integer.parseInt(split[0]);
short itemDura = 0;
if (split.length > 1) {
if (isNumeric(split[1])) {
itemDura = Short.parseShort(split[1]);
} else {
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throw parseToException("item ID:Durability combo", string, "%s");
}
}
return new ItemStack(itemId, 1, itemDura);
} else {
if (split.length == 1) {
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throw parseToException("item ID", string, "%s");
} else {
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throw parseToException("item ID:Durability combo", string, "%s");
}
}
}
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protected abstract void sendCommandUsage(CommandSender sender);
}