package jcircus.complementaryenvs;

import java.util.HashMap;
import java.util.LinkedHashMap;

public class ActStackVarEnv {
	private HashMap <String, StackVarEnv> map;
	public HashMap <String, StackVarEnv> getMap () {
		return this.map;
	}
	public ActStackVarEnv () {
		map = new LinkedHashMap <String, StackVarEnv> ();
	}
	public ActStackVarEnv (ActStackVarEnv asve) {
		map = new LinkedHashMap <String, StackVarEnv> (asve.getMap());
	}
	private boolean containsKeySubstring (String substring) {
		Object [] o = this.map.keySet().toArray();
		boolean aux = false;
		for (int i = 0; i < o.length; i++) {
			if (((String)o [i]).contains(substring)) {
				aux = true;
			}
		}
		return aux;
	}
	private String getKeyFromSubstring (String substring) {
		Object [] o = this.map.keySet().toArray();
		String aux = "";
		for (int i = 0; i < o.length; i++) {
			if (((String)o [i]).contains(substring)) {
				aux = (String) o[i];
			}
		}
		return aux;
	}
	public void update (String act, StackVarEnv sve) {
		if (!this.map.containsKey(act)) {
			if (act.contains("$$") && containsKeySubstring (act)) {
				String key = getKeyFromSubstring (act);
				this.map.put(key, sve);
			}
			this.map.put(act, sve);
		}
		else {
			this.map.remove(act);
			this.map.put(act, sve);
		}
	}
	public StackVarEnv get (String act) {
		if (this.map.containsKey(act))
			return this.map.get(act);
		/*else if (this.containsKeySubstring ("$$mainAction")) {
			return this.map.get(this.getKeyFromSubstring("$$mainAction"));
		}*/
		return new StackVarEnv ();
	}
	public void push (String act, String var) {
		StackVarEnv sve = new StackVarEnv (this.get(act));
		sve.push(var);
		this.update(act, sve);
	}
	public void pop (String act, String var) {
		StackVarEnv sve = new StackVarEnv (this.get(act));
		sve.pop(var);
		this.update(act, sve);
	}
}