/*
 * This is eMonocot, a global online biodiversity information resource.
 *
 * Copyright © 2011–2015 The Board of Trustees of the Royal Botanic Gardens, Kew and The University of Oxford
 *
 * eMonocot is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 *
 * eMonocot 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 Affero General Public License for more details.
 *
 * The complete text of the GNU Affero General Public License is in the source repository as the file
 * ‘COPYING’.  It is also available from <http://www.gnu.org/licenses/>.
 */
package org.emonocot.model;

import java.util.HashSet;
import java.util.Set;

import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToMany;
import javax.persistence.Transient;
import javax.validation.constraints.Size;

import org.apache.solr.common.SolrInputDocument;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import org.emonocot.model.marshall.json.ShapeDeserializer;
import org.emonocot.model.marshall.json.ShapeSerializer;
import org.hibernate.annotations.Cascade;
import org.hibernate.annotations.CascadeType;
import org.hibernate.annotations.Type;
import org.hibernate.annotations.Where;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.vividsolutions.jts.geom.Envelope;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.io.WKTWriter;
import com.vividsolutions.jts.simplify.TopologyPreservingSimplifier;

/**
 * @author jk00kg
 *
 */
@Entity
public class Place extends SearchableObject {

	private static Logger logger = LoggerFactory.getLogger(Place.class);

	private Long id;

	private String title;

	private String fipsCode;

	/**
	 * A featureId (OGR_FID) referenced by the map server
	 */
	private Long mapFeatureId;

	/**
	 * A JTS Polygon for this place
	 * @see com.vividsolutions.jts.geom.Polygon
	 */
	private Geometry shape;

	/**
	 * Used for a single point reference of a place.
	 * Usually in place of a shape, but possibly
	 */
	private Point point;

	private Set<Annotation> annotations = new HashSet<Annotation>();


	@Id
	@GeneratedValue(generator = "table-hilo", strategy = GenerationType.TABLE)
	public Long getId() {
		return id;
	}

	/**
	 * @param id the id to set
	 */
	public void setId(final Long id) {
		this.id = id;
	}

	/**
	 * @return the name
	 */
	@Size(max = 255)
	public String getTitle() {
		return title;
	}

	/**
	 * @param name the name to set
	 */
	public void setTitle(final String name) {
		this.title = name;
	}

	/**
	 * @return the fipsCode
	 */
	@Size(max = 255)
	public String getFipsCode() {
		return fipsCode;
	}

	/**
	 * @param fipsCode the fipsCode to set
	 */
	public void setFipsCode(final String fipsCode) {
		this.fipsCode = fipsCode;
	}

	/**
	 * @return the mapFeatureId
	 */
	public Long getMapFeatureId() {
		return mapFeatureId;
	}

	/**
	 * @param mapFeatureId the mapFeatureId to set
	 */
	public void setMapFeatureId(final Long mapFeatureId) {
		this.mapFeatureId = mapFeatureId;
	}

	/**
	 * @return the shape
	 */
	@Type(type="spatialType")
	@JsonSerialize(using=ShapeSerializer.class)
	public Geometry getShape() {
		return shape;
	}

	/**
	 * @param shape the shape to set
	 */
	@JsonDeserialize(using=ShapeDeserializer.class)
	public void setShape(Geometry shape) {
		this.shape = shape;

	}

	/**
	 * @return the point
	 */
	@Type(type="spatialType")
	public Point getPoint() {
		return point;
	}

	/**
	 * @param point the point to set
	 */
	public void setPoint(Geometry point) {
		try{
			if (point instanceof Point){
				this.point = (Point) point;
			}
		} catch (ClassCastException e) {
			logger.error("Expected a point but got " + point.toText() + " " + point, e);
		}
	}

	/**
	 * @return an Envelope
	 */
	@Transient
	@JsonIgnore
	public Envelope getEnvelope(){
		if(shape != null){
			return shape.getEnvelopeInternal();
		} else if(point != null){
			return point.getEnvelopeInternal();
		} else {
			//an empty Envelope
			return new Envelope();
		}
	}

	@OneToMany(fetch = FetchType.LAZY, orphanRemoval = true)
	@JoinColumn(name = "annotatedObjId")
	@Where(clause = "annotatedObjType = 'Place'")
	@Cascade({ CascadeType.SAVE_UPDATE, CascadeType.MERGE, CascadeType.DELETE })
	@JsonIgnore
	public Set<Annotation> getAnnotations() {
		return annotations;
	}

	/**
	 * @param annotations
	 *            the annotations to set
	 */
	public void setAnnotations(Set<Annotation> annotations) {
		this.annotations = annotations;
	}

	@Override
	public SolrInputDocument toSolrInputDocument() {
		SolrInputDocument sid = super.toSolrInputDocument();
		sid.addField("searchable.label_sort", getTitle());
		//addField(sid,"place.fips_code_t", getFipsCode());
		StringBuilder summary = new StringBuilder().append(getTitle()).append(" ").append(getFipsCode());
		sid.addField("searchable.solrsummary_t", summary);
		if (getShape() != null) {
			try {
				WKTWriter wktWriter = new WKTWriter();
				sid.addField("geo", wktWriter
						.write(TopologyPreservingSimplifier.simplify(
								getShape(), 0.01)));
			} catch (Exception e) {
				logger.error(e.getLocalizedMessage());
			}
		}
		return sid;
	}
}