/*-
 *  Copyright 2020 Beuth Hochschule für Technik Berlin, Hochschule für Technik Stuttgart
 * 
 *  This file is part of CityDoctor2.
 *
 *  CityDoctor2 is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  CityDoctor2 is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with CityDoctor2.  If not, see <https://www.gnu.org/licenses/>.
 */
package de.hft.stuttgart.citydoctor2.datastructure;

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

import org.citygml4j.core.model.core.AbstractThematicSurface;
import org.citygml4j.core.util.geometry.GeometryFactory;
import org.xmlobjects.gml.model.geometry.aggregates.MultiSurface;
import org.xmlobjects.gml.model.geometry.aggregates.MultiSurfaceProperty;

import de.hft.stuttgart.citydoctor2.check.Check;
import de.hft.stuttgart.citydoctor2.check.CheckError;
import de.hft.stuttgart.citydoctor2.check.CheckId;
import de.hft.stuttgart.citydoctor2.parser.ParserConfiguration;
import de.hft.stuttgart.citydoctor2.utils.CityGmlUtils;
import de.hft.stuttgart.citydoctor2.utils.CopyHandler;
import de.hft.stuttgart.citydoctor2.utils.Copyable;

/**
 * Representing a boundary surface in CityGML
 * 
 * @author Matthias Betz
 *
 */
public class BoundarySurface extends CityObject {

	private static final long serialVersionUID = 8793865135393496408L;

	private SurfaceFeatureType featureType;
	private BoundarySurfaceType type;

	private List<Opening> openings = new ArrayList<>(2);
	private CityObject parent;

	private AbstractThematicSurface gmlObject;

	public BoundarySurface(AbstractThematicSurface aco) {
		this(SurfaceFeatureType.BUILDING, BoundarySurfaceType.UNDEFINED, aco);
	}

	public BoundarySurface(SurfaceFeatureType featureType, BoundarySurfaceType type, AbstractThematicSurface aco) {
		this.featureType = featureType;
		this.type = type;
		gmlObject = aco;
	}

	public void setFeatureType(SurfaceFeatureType featureType) {
		this.featureType = featureType;
	}

	public void setType(BoundarySurfaceType type) {
		this.type = type;
	}

	public void setGmlObject(AbstractThematicSurface gmlObject) {
		this.gmlObject = gmlObject;
	}

	public SurfaceFeatureType getSurfaceFeatureType() {
		return featureType;
	}

	public BoundarySurfaceType getType() {
		return type;
	}

	public List<Opening> getOpenings() {
		return openings;
	}

	@Override
	public void reCreateGeometries(GeometryFactory factory, ParserConfiguration config) {
		if (gmlObject.getId() == null) {
			gmlObject.setId(getGmlId().getGmlString());
		}
		for (Geometry geom : getGeometries()) {
			if (geom.getType() == GeometryType.MULTI_SURFACE) {
				MultiSurface ms = CityGmlUtils.createMultiSurface(geom, factory, config);
				if (ms != null) {
					setGeometryAccordingToLod(geom.getLod(), new MultiSurfaceProperty(ms));
				}
			} else {
				throw new IllegalStateException("BoundarySurfaces can only have MultiSurface geometries");
			}
		}
		for (Opening o : openings) {
			o.reCreateGeometries(factory, config);
		}
	}

	private void setGeometryAccordingToLod(Lod lod, MultiSurfaceProperty ms) {
		switch (lod) {
		case LOD0:
			gmlObject.setLod0MultiSurface(ms);
			break;
		case LOD1:
			gmlObject.setLod1MultiSurface(ms);
			break;
		case LOD2:
			gmlObject.setLod2MultiSurface(ms);
			break;
		case LOD3:
			gmlObject.setLod3MultiSurface(ms);
			break;
		case LOD4:
			gmlObject.getDeprecatedProperties().setLod4MultiSurface(ms);
			break;
		default:
			throw new IllegalStateException("Found geometry with LOD other than LOD1-4, which is illegal for BoundarySurfaces: " + lod);
		}
	}
	
	@Override
	public void clearAllContainedCheckResults() {
		super.clearAllContainedCheckResults();
		for (Opening o : openings) {
			o.clearAllContainedCheckResults();
		}
	}

	@Override
	public void collectContainedErrors(List<CheckError> errors) {
		super.collectContainedErrors(errors);
		for (Opening o : openings) {
			o.collectContainedErrors(errors);
		}
	}

	@Override
	public boolean containsAnyError() {
		boolean hasError = super.containsAnyError();
		if (hasError) {
			return true;
		}
		for (Opening o : openings) {
			if (o.containsAnyError()) {
				return true;
			}
		}
		return false;
	}

	@Override
	public boolean containsError(CheckId checkIdentifier) {
		boolean hasError = super.containsError(checkIdentifier);
		if (hasError) {
			return true;
		}
		for (Opening o : openings) {
			if (o.containsError(checkIdentifier)) {
				return true;
			}
		}
		return false;
	}

	@Override
	public void accept(Check c) {
		super.accept(c);
		if (c.canExecute(this)) {
			c.check(this);
		}
		for (Opening o : openings) {
			o.accept(c);
		}
	}

	public void setParent(CityObject parent) {
		this.parent = parent;
	}

	public CityObject getParent() {
		return parent;
	}

	@Override
	public void unsetGmlGeometries() {
		gmlObject.setLod0MultiSurface(null);
		gmlObject.setLod1MultiSurface(null);
		gmlObject.setLod2MultiSurface(null);
		gmlObject.setLod3MultiSurface(null);
		gmlObject.getDeprecatedProperties().setLod4MultiSurface(null);
		
		for (Opening o : openings) {
			o.unsetGmlGeometries();
		}
	}

	@Override
	public String toString() {
		return "BoundarySurface [type=" + type + ", id=" + getGmlId() + "]";
	}

	void anonymize() {
		gmlObject.setAppearances(null);
		gmlObject.setBoundedBy(null);
		gmlObject.setCreationDate(null);
		gmlObject.setDescription(null);
		gmlObject.setExternalReferences(null);
		gmlObject.setGeneralizesTo(null);
		gmlObject.setADEProperties(null);
		gmlObject.setGenericAttributes(null);
		setGmlId(GmlId.generateId());
		gmlObject.setId(getGmlId().getGmlString());
	}

	@Override
	public AbstractThematicSurface getGmlObject() {
		return gmlObject;
	}

	@Override
	public FeatureType getFeatureType() {
		return FeatureType.BOUNDARY_SURFACE;
	}

	public void addOpening(Opening opening) {
		openings.add(opening);
		opening.setPartOfSurface(this);
	}

	@Override
	public void prepareForChecking() {
		super.prepareForChecking();
		for (Opening o : openings) {
			o.prepareForChecking();
		}
	}

	@Override
	public void clearMetaInformation() {
		super.clearMetaInformation();
		for (Opening o : openings) {
			o.clearMetaInformation();
		}
	}

	@Override
	public Copyable createCopyInstance() {
		return new BoundarySurface(gmlObject);
	}
	
	@Override
	public void collectInstances(CopyHandler handler) {
		super.collectInstances(handler);
		for (Opening o : openings) {
			handler.addInstance(o);
		}
		handler.addInstance(parent);
	}
	
	@Override
	public void fillValues(Copyable original, CopyHandler handler) {
		super.fillValues(original, handler);
		BoundarySurface originalBs = (BoundarySurface) original;
		featureType = originalBs.featureType;
		type = originalBs.type;
		for (Opening originalOpening : originalBs.openings) {
			openings.add(handler.getCopyInstance(originalOpening));
		}
		parent = handler.getCopyInstance(originalBs.parent);
		gmlObject = originalBs.gmlObject;
	}
	
}