/**
 * Copyright (c) 2016 Evolveum
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.evolveum.midpoint.web.component.input;

import java.util.ArrayList;
import java.util.List;

import com.evolveum.midpoint.common.refinery.RefinedResourceSchemaImpl;
import org.apache.commons.lang.StringUtils;
import org.apache.wicket.markup.html.form.IChoiceRenderer;
import org.apache.wicket.model.IModel;

import com.evolveum.midpoint.common.refinery.RefinedObjectClassDefinition;
import com.evolveum.midpoint.common.refinery.RefinedResourceSchema;
import com.evolveum.midpoint.prism.PrismObject;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ResourceType;

/**
 * @author semancik
 *
 */
public class RefinedObjectTypeChoicePanel extends DropDownChoicePanel<RefinedObjectClassDefinition> {

	private static final Trace LOGGER = TraceManager.getTrace(RefinedObjectTypeChoicePanel.class);
	
	public RefinedObjectTypeChoicePanel(String id, IModel<RefinedObjectClassDefinition> model, IModel<PrismObject<ResourceType>> resourceModel) {
		super(id, model, createChoiceModel(resourceModel), createRenderer(), false);
	}
	
	private static IModel<? extends List<? extends RefinedObjectClassDefinition>> createChoiceModel(final IModel<PrismObject<ResourceType>> resourceModel) {
		return new IModel<List<? extends RefinedObjectClassDefinition>>() {
			@Override
			public List<? extends RefinedObjectClassDefinition> getObject() {
				RefinedResourceSchema refinedSchema;
				try {
					refinedSchema = RefinedResourceSchemaImpl.getRefinedSchema(resourceModel.getObject());
				} catch (SchemaException e) {
					throw new IllegalArgumentException(e.getMessage(),e);
				}
				List<? extends RefinedObjectClassDefinition> refinedDefinitions = refinedSchema.getRefinedDefinitions();
				List<? extends RefinedObjectClassDefinition> defs = new ArrayList<>();
				for (RefinedObjectClassDefinition rdef: refinedDefinitions) {
					if (rdef.getKind() != null) {
						((List)defs).add(rdef);
					}
				}
				return defs;
			}

			@Override
			public void detach() {
			}

			@Override
			public void setObject(List<? extends RefinedObjectClassDefinition> object) {
				throw new UnsupportedOperationException();
			}
		};
	}

	private static IChoiceRenderer<RefinedObjectClassDefinition> createRenderer() {
		return new IChoiceRenderer<RefinedObjectClassDefinition>() {

			@Override
			public Object getDisplayValue(RefinedObjectClassDefinition object) {
				if (object.getDisplayName() != null) {
					return object.getDisplayName();
				}
				return object.getHumanReadableName();
			}

			@Override
			public String getIdValue(RefinedObjectClassDefinition object, int index) {
				return Integer.toString(index);
			}

			@Override
			public RefinedObjectClassDefinition getObject(String id, IModel<? extends List<? extends RefinedObjectClassDefinition>> choices) {
				return StringUtils.isNotBlank(id) ? choices.getObject().get(Integer.parseInt(id)) : null;
			}
		};
	}

}