package org.simantics.interop.test;

import java.util.List;
import java.util.Map.Entry;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.Statement;
import org.simantics.db.common.utils.NameUtils;
import org.simantics.db.exception.DatabaseException;
import org.simantics.utils.datastructures.BijectionMap;
import org.simantics.utils.datastructures.Pair;

public class GraphChanges {
	
	private Resource r1;
	private Resource r2;
	private List<Statement> deletions;
	private List<Statement> additions;
	private List<Pair<Statement,Statement>> modifications;
	
	private BijectionMap<Resource, Resource> comparable;
	
	public GraphChanges(Resource r1, Resource r2, List<Statement> deletions, List<Statement> additions,
			List<Pair<Statement, Statement>> modifications, BijectionMap<Resource, Resource> comparable) {
		super();
		this.r1 = r1;
		this.r2 = r2;
		this.deletions = deletions;
		this.additions = additions;
		this.modifications = modifications;
		this.comparable = comparable;
	}
	
	public Resource getResource1() {
		return r1;
	}
	
	public Resource getResource2() {
		return r2;
	}
	
	public List<Statement> getAdditions() {
		return additions;
	}
	
	public List<Statement> getDeletions() {
		return deletions;
	}
	
	public List<Pair<Statement, Statement>> getModifications() {
		return modifications;
	}
	
	public BijectionMap<Resource, Resource> getComparable() {
		return comparable;
	}
	
	public String toString(ReadGraph graph) throws DatabaseException {
		StringBuilder sb = new StringBuilder();
		sb.append("Del:\n");
		for (Statement stm : deletions) {
			sb.append(NameUtils.getSafeName(graph, stm.getSubject()) + " "+
    						   NameUtils.getSafeName(graph, stm.getPredicate()) + " " +
    						   NameUtils.getSafeName(graph, stm.getObject()) + " (" +
    						   stm.getSubject() + " " +stm.getPredicate() + " " + stm.getObject() + ")\n");
    	}
		sb.append("Add:\n");
		for (Statement stm : additions) {
			sb.append(NameUtils.getSafeName(graph, stm.getSubject()) + " "+
					   NameUtils.getSafeName(graph, stm.getPredicate()) + " " +
				   NameUtils.getSafeName(graph, stm.getObject()) + " (" +
				   stm.getSubject() + " " +stm.getPredicate() + " " + stm.getObject() + ")\n");
    	}
		sb.append("Mod:\n");
		for (Pair<Statement, Statement> mod :modifications) {
			{
				Statement stm = mod.first;
				sb.append(NameUtils.getSafeName(graph, stm.getSubject()) + " "+
						   NameUtils.getSafeName(graph, stm.getPredicate()) + " " +
					   NameUtils.getSafeName(graph, stm.getObject()) + " (" +
					   stm.getSubject() + " " +stm.getPredicate() + " " + stm.getObject() + ")\n");
			}
			{
				Statement stm = mod.second;
				sb.append(NameUtils.getSafeName(graph, stm.getSubject()) + " "+
						   NameUtils.getSafeName(graph, stm.getPredicate()) + " " +
					   NameUtils.getSafeName(graph, stm.getObject()) + " (" +
					   stm.getSubject() + " " +stm.getPredicate() + " " + stm.getObject() + ")\n");
			}
    	}
		return sb.toString();
	}
	
	public String comparableToString(ReadGraph graph) throws DatabaseException {
		StringBuilder sb = new StringBuilder();
		sb.append("Comparable:\n");
		for (Entry<Resource, Resource> entry : comparable.getEntries()) {
			sb.append(NameUtils.getSafeName(graph, entry.getKey()) + " "+
					   NameUtils.getSafeName(graph, entry.getValue()) + " (" +
					   entry.getKey() + " " +entry.getValue() + ")\n");
			
		}
		return sb.toString();
	}

}