package foundation.server;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class Container<T> implements Iterable<T> {

	protected static Logger logger;
	protected String name;
	protected Map<String, T> items; 
	protected T cached;
	protected String cachedKey;
	protected boolean dirty;
	
	static {
		logger = LogManager.getLogger(Container.class);
	}

	public Container(){
		name = this.getClass().getSimpleName();
		items = new HashMap<String, T>();
	}
	
	public void add(String name, T item) throws Exception {
		if (name != null) {
			items.put(name.toLowerCase(), item);
		}
	}

	public T get(String name) {
		if (name != null) {
			return items.get(name.toLowerCase());
		}
		else {
			return null;
		}
	}
	
	public T getCached(String key) {
		if (key.equals(cachedKey)) {
			return cached;
		}
		
		cached = get(key);
		cachedKey = key;
		
		return cached;
	}

	public Iterator<T> iterator() {
		return new ContainerIterator<T>(this);
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	public boolean contains(String name) {
		if (name == null) {
			return false;
		}
		
		name = name.toLowerCase();
		return items.containsKey(name);
	}
	
	public Map<String, T> getItemMap() {
		return items;
	}
	
	public boolean isDirty() {
		return dirty;
	}

	public void setDirty(boolean dirty) {
		this.dirty = dirty;
	}
	
	public void clear() {
		items.clear();
	}
}