package org.apache.tuscany.sca.impl.layout;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;

import org.apache.tuscany.sca.impl.artifacts.Component;
import org.apache.tuscany.sca.impl.artifacts.Property;
import org.apache.tuscany.sca.impl.artifacts.Reference;
import org.apache.tuscany.sca.impl.artifacts.Service;

/**
 * Represents an unit (a component including its references, services, properties
 * and adjacent units) in the diagram.
 *
 */
public class Entity {
	
	private String componentName;
	private int X, Y, level=-1, lane=-1, refHeight, serHeight, propLength;
	private final int height= Component.DEFAULT_HEIGHT, width= Component.DEFAULT_WIDTH;
	public static final int defaultNoOfSers= Component.DEFAULT_HEIGHT / (Service.MAXIMUM_HEIGHT+Service.SPACING);
	public static final int defaultNoOfRefs= Component.DEFAULT_HEIGHT / (Reference.MAXIMUM_HEIGHT+Reference.SPACING); //same value for defaultNoOfSers
	public static final int defaultNoOfProps= Component.DEFAULT_WIDTH / (Property.MAXIMUM_HEIGHT+Property.SPACING); 
	
	private HashMap<String, String> referenceToServiceMap = new HashMap<String, String>();
	
	private ArrayList<String> references = new ArrayList<String>();
	private ArrayList<String> refProperties = new ArrayList<String>();
	
	private ArrayList<String> services = new ArrayList<String>();
	private ArrayList<String> serProperties = new ArrayList<String>();
	
	private ArrayList<String> properties = new ArrayList<String>();
	private ArrayList<String> propProperties = new ArrayList<String>();
	
	private HashSet<String> adjacentEntities = new HashSet<String>();
	private HashSet<String> connectedEntities = new HashSet<String>();
	
	
	public Entity(){
		
		
	}
	
	public void referenceHeight(){
		if(Entity.defaultNoOfRefs < getNoOfRefs()){

			refHeight = (Component.DEFAULT_HEIGHT / getNoOfRefs()) - Reference.SPACING;
		}
		else
			refHeight = Reference.MAXIMUM_HEIGHT;
	}
	
	public void serviceHeight(){
		if(Entity.defaultNoOfSers < getNoOfSers()){

			serHeight = (Component.DEFAULT_HEIGHT / getNoOfSers()) - Service.SPACING;
		}
		else
			serHeight = Service.MAXIMUM_HEIGHT;
	}
	
	public void propertyLength(){
		if(Entity.defaultNoOfProps < getNoOfProps()){

			propLength = (Component.DEFAULT_WIDTH / getNoOfProps()) - Property.SPACING;
		}
		else
			propLength = Property.MAXIMUM_HEIGHT;
	}
	
	public int getNoOfRefs(){
		return references.size();
	}
	
	public int getNoOfSers(){
		return services.size();
	}
	
	public int getNoOfProps(){
		return properties.size();
	}
	
	public int getNoOfAdjacentUnits(){
		return adjacentEntities.size();
	}
	
	/**
	 * Put a value to referenceToServiceMap
	 * @param ref
	 * @param ser
	 * @return successfully added or not
	 */
	//assumption there can not be two services for the same reference
	public boolean addToRefToSerMap(String ref, String ser){
		//ref = ref.toLowerCase();
		//ser = ser.toLowerCase();
		
		if (referenceToServiceMap.containsKey(ref))
			return false;
		
		referenceToServiceMap.put(ref, ser);
		return true;
	}
	
	/**
	 * Retrieve a service name for a given reference
	 * @param ref
	 * @return service name
	 */
	public String getSerOfRef(String ref){
		//ref = ref.toLowerCase();
		
		if (!referenceToServiceMap.containsKey(ref))
			return null;
		
		return referenceToServiceMap.get(ref);
	}
	
	public void addAService(String serName){
		//serName = serName.toLowerCase();
		services.add(serName);
		
	}
	
	public void addAReference(String refName){
		//refName = refName.toLowerCase();
		references.add(refName);
		
	}
	
	public void addAProperty(String propName){
		//propName = propName.toLowerCase();
		properties.add(propName);
		
	}
	
	public void addAnAdjacentEntity(String x){
//		System.out.println("eee "+x);
		adjacentEntities.add(x);
		
	}
	
	public void addAnConnectedEntity(String x){
//		System.out.println("eee "+x);
		adjacentEntities.add(x);
		
	}
	
	public void setComponentName(String componentName) {
		this.componentName = componentName;
	}
	public String getComponentName() {
		return componentName;
	}
	
	public HashMap<String, String> getReferenceToServiceMap() {
		return referenceToServiceMap;
	}
	public void setReferenceToServiceMap(
			HashMap<String, String> referenceToServiceMap) {
		this.referenceToServiceMap = referenceToServiceMap;
	}
	public ArrayList<String> getProperties() {
		return properties;
	}
	public void setProperties(ArrayList<String> properties) {
		this.properties = properties;
	}
	public HashSet<String> getAdjacentEntities() {
		return adjacentEntities;
	}
	public void setAdjacentEntities(HashSet<String> adjacentEntities) {
		this.adjacentEntities = adjacentEntities;
	}
	public void setServices(ArrayList<String> services) {
		this.services = services;
	}
	
	public ArrayList<String> getServices() {
		return services;
	}

	public int getX() {
		return X;
	}

	public void setX(int x) {
		X = x;
	}

	public int getY() {
		return Y;
	}

	public void setY(int y) {
		Y = y;
	}

	public int getLevel() {
		return level;
	}

	public void setLevel(int level) {
		this.level = level;
	}

	public int getLane() {
		return lane;
	}

	public void setLane(int lane) {
		this.lane = lane;
	}

	public ArrayList<String> getRefProperties() {
		return refProperties;
	}
	
	public ArrayList<String> getReferences() {
		return references;
	}

	public void setRefProperties(ArrayList<String> refProperties) {
		this.refProperties = refProperties;
	}

	public ArrayList<String> getSerProperties() {
		return serProperties;
	}

	public void setSerProperties(ArrayList<String> serProperties) {
		this.serProperties = serProperties;
	}

	public ArrayList<String> getPropProperties() {
		return propProperties;
	}

	public void setPropProperties(ArrayList<String> propProperties) {
		this.propProperties = propProperties;
	}

	public int getRefHeight() {
		return refHeight;
	}

	public int getSerHeight() {
		return serHeight;
	}

	public int getPropLength() {
		return propLength;
	}

	public void setConnectedEntities(HashSet<String> connectedEntities) {
		this.connectedEntities = connectedEntities;
	}

	public HashSet<String> getConnectedEntities() {
		return connectedEntities;
	}

	public int getHeight() {
		return height;
	}

	public int getWidth() {
		return width;
	}

}