package org.simantics.db.layer0.request;

import java.util.Collection;
import java.util.Map;
import java.util.Set;

import org.simantics.databoard.Bindings;
import org.simantics.databoard.accessor.reference.ChildReference;
import org.simantics.databoard.binding.Binding;
import org.simantics.databoard.type.Datatype;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.layer0.variable.ValueAccessor;
import org.simantics.db.layer0.variable.VariableBuilder;
import org.simantics.layer0.Layer0;
import org.simantics.utils.datastructures.Pair;

public class PropertyInfo {
	public final Resource predicate;
	public final String name;
	public final boolean isHasProperty;
	public final Set<String> classifications;
	public final VariableBuilder builder;
	public final Resource literalRange;
	public final Datatype requiredDatatype;
	public final String requiredValueType;
	public final String definedUnit;
	public final Binding defaultBinding;
	public final Map<String,Pair<Resource, ChildReference>> subliteralPredicates;
	public final ValueAccessor valueAccessor;
	public final boolean hasEnumerationRange;
	public PropertyInfo(Resource predicate, String name, boolean isHasProperty, Set<String> classifications, VariableBuilder builder, Resource literalRange, Datatype requiredDatatype, String definedUnit, String requiredValueType, Binding defaultBinding, Map<String,Pair<Resource, ChildReference>> subliteralPredicates, ValueAccessor valueAccessor, boolean hasEnumerationRange) {
		this.predicate = predicate;
		this.name = name;
		this.isHasProperty = isHasProperty;
		this.classifications = classifications;
		this.builder = builder;
		this.literalRange = literalRange;
		this.requiredDatatype = requiredDatatype;
		this.definedUnit = definedUnit;
		this.requiredValueType = requiredValueType;
		this.defaultBinding = defaultBinding;
		this.subliteralPredicates = subliteralPredicates;
		this.valueAccessor = valueAccessor;
		this.hasEnumerationRange = hasEnumerationRange;
	}
	public static PropertyInfo make(ReadGraph graph, Resource predicate, String name, boolean isHasProperty, Set<String> classifications, VariableBuilder builder, Resource literalRange, Datatype requiredDatatype, String definedUnit, String requiredValueType, Map<String,Pair<Resource, ChildReference>> subliteralPredicates, ValueAccessor valueAccessor, boolean hasEnumerationRange) throws DatabaseException {

		Layer0 L0 = Layer0.getInstance(graph);
		if(literalRange != null) {
			Collection<Resource> dts = graph.getAssertedObjects(literalRange, L0.HasDataType);
			if(dts.size() == 1) {
				Datatype dt = graph.getPossibleValue(dts.iterator().next(), Bindings.DATATYPE);
				if(requiredDatatype == null) requiredDatatype = dt;
			}
		}
		
		Binding defaultBinding = requiredDatatype != null ? Bindings.getBinding(requiredDatatype) : null;
		
		return new PropertyInfo(predicate, name, isHasProperty, classifications, builder, literalRange, requiredDatatype, definedUnit, requiredValueType, defaultBinding, subliteralPredicates, valueAccessor, hasEnumerationRange);

	}
	public boolean hasClassification(String classification) {
		return classifications.contains(classification);
	}
	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append("PropertyInfo [")
		.append(name)
		.append(" : ")
		.append(requiredDatatype)
		.append(" :: ")
		.append(requiredValueType)
		.append(", predicate=")
		.append(predicate)
		.append(", isHasProperty=")
		.append(isHasProperty)
		.append(", hasEnumerationRange=")
		.append(hasEnumerationRange)
		.append(", definedUnit=")
		.append(definedUnit != null ? definedUnit : "<none>")
		.append(", defaultBinding=")
		.append(defaultBinding)
		.append(", valueAccessor=")
		.append(valueAccessor)
		.append("]");
		return sb.toString();
	}
}