package foundation.action;

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

public class StateContext {

	private Map<String, StateContextItem> items;
	
	public StateContext() {
		items = new HashMap<String, StateContextItem>();
	}
	
	public void setState(String dataName, String stateCode) {
		if (dataName == null) {
			return;
		}
		
		String lower = dataName.toLowerCase();
		
		StateContextItem item = items.get(lower);
		if (item == null) {
			item = new StateContextItem(dataName);
			items.put(lower, item);
		}
		
		item.addOne(stateCode);
	}
	
	public StateContextItem getState(String dataName) {
		if (dataName == null) {
			return null;
		}
		
		dataName = dataName.toLowerCase();
		return items.get(dataName);
	}
	
	public boolean isState(String dataName, String stateCode) {
		if (dataName == null || stateCode == null) {
			return false;
		}
		
		dataName = dataName.toLowerCase();
		
		StateContextItem item = items.get(dataName);
		if (item == null) {
			return false;
		}
		
		return item.contains(stateCode);
	}
	
	public Map<String, StateContextItem> getItems() {
		return items;
	}
	
	public static boolean isEmpty(StateContext stateContext) {
		if (stateContext == null) {
			return true;
		}
		
		Map<String, StateContextItem> items = stateContext.getItems();
		return items == null || items.isEmpty() || items.size() == 0;
	}
}