Pregen config & cmd perm fixes

Added perm group check
Needs testing

ButtonCore/src/main/java/buttondevteam/lib/architecture/ButtonPlugin.java

@@ -9,6 +9,11 @@ import lombok.Getter;
 import lombok.experimental.var;
 import org.bukkit.plugin.java.JavaPlugin;
 
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.Optional;
 import java.util.Stack;
 
 @HasConfig
@@ -42,12 +47,13 @@ public abstract class ButtonPlugin extends JavaPlugin {
 	@Override
 	public final void onEnable() {
 		loadConfig();
-		IHaveConfig.pregenConfig(this, null);
 		try {
 			pluginEnable();
 		} catch (Exception e) {
 			TBMCCoreAPI.SendException("Error while enabling plugin " + getName() + "!", e);
 		}
+		if (configGenAllowed(this)) //If it's not disabled (by default it's not)
+			IHaveConfig.pregenConfig(this, null);
 	}
 
 	private void loadConfig() {
@@ -91,4 +97,15 @@ public abstract class ButtonPlugin extends JavaPlugin {
 		loaded = true; //Needed because for the first time it uses reloadConfig() to load it
 		return true;
 	}
+
+	@Retention(RetentionPolicy.RUNTIME)
+	@Target(ElementType.TYPE)
+	public @interface ConfigOpts {
+		boolean disableConfigGen() default false;
+	}
+
+	public static boolean configGenAllowed(Object obj) {
+		return !Optional.ofNullable(obj.getClass().getAnnotation(ConfigOpts.class))
+			.map(ConfigOpts::disableConfigGen).orElse(false);
+	}
 }

ButtonCore/src/main/java/buttondevteam/lib/architecture/Component.java

@@ -85,7 +85,6 @@ public abstract class Component<TP extends JavaPlugin> {
 				}
 				component.plugin = plugin;
 				updateConfig(plugin, component);
-				IHaveConfig.pregenConfig(component, null);
 				component.register(plugin);
 				components.put(component.getClass(), component);
 				if (plugin instanceof ButtonPlugin)
@@ -134,6 +133,8 @@ public abstract class Component<TP extends JavaPlugin> {
 		if (component.enabled = enabled) {
 			updateConfig(component.getPlugin(), component);
 			component.enable();
+			if (ButtonPlugin.configGenAllowed(component))
+				IHaveConfig.pregenConfig(component, null);
 		} else {
 			component.disable();
 			component.plugin.saveConfig();
@@ -229,6 +230,7 @@ public abstract class Component<TP extends JavaPlugin> {
 
 	/**
 	 * Returns a map of configs that are under the given key.
+	 *
 	 * @param key             The key to use
 	 * @param defaultProvider A mapping between config paths and config generators
 	 * @return A map containing configs

ButtonCore/src/main/java/buttondevteam/lib/chat/Command2.java

@@ -105,7 +105,7 @@ public abstract class Command2<TC extends ICommand2, TP extends Command2Sender>
 				sender.sendMessage(sd.helpText);
 				return true;
 			}
-			if (!hasPermission(sender, sd.command)) {
+			if (!hasPermission(sender, sd.command, sd.method)) {
 				sender.sendMessage("§cYou don't have permission to use this command");
 				return true;
 			}
@@ -283,7 +283,7 @@ public abstract class Command2<TC extends ICommand2, TP extends Command2Sender>
 		return ht;
 	}
 
-	public abstract boolean hasPermission(TP sender, TC command);
+	public abstract boolean hasPermission(TP sender, TC command, Method subcommand);
 
 	public String[] getCommandsText() {
 		return commandHelp.toArray(new String[0]);

ButtonCore/src/main/java/buttondevteam/lib/chat/Command2MC.java

@@ -6,21 +6,27 @@ import org.bukkit.Bukkit;
 import org.bukkit.permissions.Permission;
 import org.bukkit.permissions.PermissionDefault;
 
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
 import java.util.function.Function;
 
 public class Command2MC extends Command2<ICommand2MC, Command2MCSender> {
 	@Override
 	public void registerCommand(ICommand2MC command) {
 		super.registerCommand(command, '/');
-		Bukkit.getPluginManager().addPermission(new Permission("thorpe.command." + command.getCommandPath().replace(' ', '.'),
+		val perm = "thorpe.command." + command.getCommandPath().replace(' ', '.');
+		if (Bukkit.getPluginManager().getPermission(perm) == null) //Check needed for plugin reset
+			Bukkit.getPluginManager().addPermission(new Permission(perm,
 				modOnly(command) ? PermissionDefault.OP : PermissionDefault.TRUE)); //Allow commands by default, unless it's mod only - TODO: Test
 	}
 
 	@Override
-	public boolean hasPermission(Command2MCSender sender, ICommand2MC command) {
+	public boolean hasPermission(Command2MCSender sender, ICommand2MC command, Method method) {
+		String pg;
 		return modOnly(command)
-			? MainPlugin.permission.has(sender.getSender(), "tbmc.admin") //TODO: Change when groups are implemented
-			//: MainPlugin.permission.has(sender.getSender(), permGroup()) - TODO: Check for subcommands (permGroup)
+			? MainPlugin.permission.has(sender.getSender(), "tbmc.admin")
+			: (pg = permGroup(command, method)) != null
+			? MainPlugin.permission.has(sender.getSender(), pg)
 			: MainPlugin.permission.has(sender.getSender(), "thorpe.command." + command.getCommandPath().replace(' ', '.'));
 	}
 
@@ -31,11 +37,39 @@ public class Command2MC extends Command2<ICommand2MC, Command2MCSender> {
 	 * @return Whether the command is mod only
 	 */
 	private boolean modOnly(ICommand2MC command) {
-		for (Class<?> cl = command.getClass(); cl != null; cl = cl.getSuperclass()) {
-			val cc = command.getClass().getAnnotation(CommandClass.class);
-			if (cc != null && cc.modOnly()) return true;
+		return getAnnForValue(command.getClass(), CommandClass.class, CommandClass::modOnly, false);
 	}
-		return false;
+
+	/**
+	 * Returns true if this class or <u>any</u> of the superclasses are mod only.
+	 *
+	 * @param method The subcommand to check
+	 * @return The permission group for the subcommand or null
+	 */
+	private String permGroup(ICommand2MC command, Method method) {
+		val sc = method.getAnnotation(Subcommand.class);
+		if (sc != null && sc.permGroup().length() > 0) return sc.permGroup();
+		return getAnnForValue(command.getClass(), CommandClass.class, CommandClass::permGroup, null);
+	}
+
+	/**
+	 * Loops until it finds a value that is <b>not</b> the same as def
+	 *
+	 * @param sourceCl  The class which has the annotation
+	 * @param annCl     The annotation to get
+	 * @param annMethod The annotation method to check
+	 * @param def       The value to ignore when looking for the result
+	 * @param <T>       The annotation type
+	 * @param <V>       The type of the value
+	 * @return The value returned by the first superclass or def
+	 */
+	private <T extends Annotation, V> V getAnnForValue(Class<?> sourceCl, Class<T> annCl, Function<T, V> annMethod, V def) {
+		for (Class<?> cl = sourceCl; cl != null; cl = cl.getSuperclass()) {
+			val cc = cl.getAnnotation(annCl);
+			V r;
+			if (cc != null && (r = annMethod.apply(cc)) != def) return r;
+		}
+		return def;
 	}
 
 	/**