package org.simantics.interop.xmlio;

import java.util.List;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.exception.DatabaseException;
import org.simantics.interop.xmlio.LoadXML.Bundle;
import org.simantics.layer0.Layer0;

public class DefaultLoadRule implements LoadRule{
	
	private Layer0 l0;
	
	@Override
	public Resource getResource(ReadGraph graph, String uri)
			throws DatabaseException {
		return graph.getResource(uri);
	}
	
	@Override
	public Object createValue(ReadGraph graph, List<String> value, List<String> types)
			throws DatabaseException {
		if (types.contains(Layer0.URIs.String))
			return value.get(0);
		if (types.contains(Layer0.URIs.Boolean))
			return Boolean.parseBoolean(value.get(0));
		if (types.contains(Layer0.URIs.Byte))
			return Byte.parseByte(value.get(0));
		if (types.contains(Layer0.URIs.Double))
			return Double.parseDouble(value.get(0));
		if (types.contains(Layer0.URIs.Integer))
			return Integer.parseInt(value.get(0));
		if (types.contains(Layer0.URIs.Long))
			return Long.parseLong(value.get(0));
		if (types.contains(Layer0.URIs.Float))
			return Float.parseFloat(value.get(0));
		
		if (types.contains(Layer0.URIs.StringArray)) {
			String[] result = new String[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = value.get(i);
			return result;
		}
		if (types.contains(Layer0.URIs.BooleanArray)) {
			boolean[] result = new boolean[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = Boolean.parseBoolean(value.get(i));
			return result;
		}
		if (types.contains(Layer0.URIs.BooleanArray)) {
			boolean[] result = new boolean[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = Boolean.parseBoolean(value.get(i));
			return result;
		}
		if (types.contains(Layer0.URIs.ByteArray)) {
			byte[] result = new byte[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = Byte.parseByte(value.get(i));
			return result;
		}
		if (types.contains(Layer0.URIs.DoubleArray)) {
			double[] result = new double[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = Double.parseDouble(value.get(i));
			return result;
		}
		
		if (types.contains(Layer0.URIs.IntegerArray)) {
			int[] result = new int[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = Integer.parseInt(value.get(i));
			return result;
		}
		if (types.contains(Layer0.URIs.LongArray)) {
			long[] result = new long[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = Long.parseLong(value.get(i));
			return result;
		}
		if (types.contains(Layer0.URIs.FloatArray)) {
			float[] result = new float[value.size()];
			for (int i = 0; i < result.length; i++)
				result[i] = Float.parseFloat(value.get(i));
			return result;
		}
		throw new DatabaseException("Unknow value");
		
	}
	
	@Override
	public void initializeWithBundles(ReadGraph graph, List<Bundle> bundles)
			throws DatabaseException {
		l0 = Layer0.getInstance(graph);
		
	}

}