/*
 * #%L
 * gitools-core
 * %%
 * Copyright (C) 2013 Universitat Pompeu Fabra - Biomedical Genomics group
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */
package org.gitools.matrix.model;

import com.jgoodies.binding.beans.Model;
import org.gitools.api.analysis.IAggregator;
import org.gitools.api.matrix.IKey;
import org.gitools.api.matrix.IMatrixLayer;
import org.gitools.api.matrix.SortDirection;
import org.gitools.api.matrix.ValueTranslator;
import org.gitools.matrix.model.matrix.element.LayerDef;
import org.gitools.utils.aggregation.SumAggregator;
import org.gitools.utils.translators.ValueTranslatorFactory;

import javax.xml.bind.annotation.*;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

@XmlAccessorType(XmlAccessType.FIELD)
public class MatrixLayer<T> extends Model implements IMatrixLayer<T> {

    public static final String PROPERTY_ID = "id";
    public static final String PROPERTY_NAME = "name";
    public static final String PROPERTY_DESCRIPTION = "description";
    public static final String PROPERTY_VALUE_CLASS = "valueClass";
    public static final String PROPERTY_DESCRIPTION_URL = "descriptionUrl";
    public static final String PROPERTY_VALUE_URL = "valueUrl";

    private String id;
    private String name;
    private String description;

    @XmlElement(name = "description-link")
    private String descriptionUrl;

    @XmlElement(name = "value-link")
    private String valueUrl;

    @XmlElement(name = "value-type")
    @XmlJavaTypeAdapter(ClassXmlAdapter.class)
    private Class<T> valueClass;

    //TODO
    @XmlTransient
    protected IAggregator aggregator;

    @XmlElementWrapper(name = "data-groups")
    @XmlElement(name = "group")
    private Set<String> groups;

    private SortDirection sortDirection;

    public SortDirection getSortDirection() {

        if (sortDirection == null) {
            return SortDirection.ASCENDING;
        }

        return sortDirection;
    }

    public void setSortDirection(SortDirection sortDirection) {
        this.sortDirection = sortDirection;
    }

    public IAggregator getAggregator() {

        if (aggregator == null) {
            return SumAggregator.INSTANCE;
        }

        return aggregator;
    }

    public void setAggregator(IAggregator aggregator) {
        this.aggregator = aggregator;
    }

    @Override
    public Set<String> getGroups() {

        if (groups == null || groups.size() == 0) {
            HashSet nullSet = new HashSet();
            nullSet.add(LayerDef.ALL_DATA_GROUP);
            return nullSet;
        } else {
            return groups;
        }

    }

    public MatrixLayer() {
        // JAXB requirement
    }

    public MatrixLayer(String id, Class<T> valueClass) {
        this(id, valueClass, null, null, new HashSet<String>());
    }

    public MatrixLayer(String id, Class<T> valueClass, String name, String description, Set<String> groups) {
        this.id = id;
        this.valueClass = valueClass;
        this.name = name;
        this.description = description;
        this.groups = groups;
    }
    public MatrixLayer(String id, Class<T> valueClass, String name, String description) {
        this(id, valueClass, name, description, new HashSet<String>());
    }

    @Override
    public String getId() {
        return id;
    }

    @Override
    public String getName() {
        if (name == null) {
            return id;
        }

        return name;
    }

    @Override
    public String getDescription() {
        if (description == null) {
            return "";
        }

        return description;
    }

    @Override
    public Class<T> getValueClass() {
        return valueClass;
    }

    @Override
    public ValueTranslator<T> getTranslator() {
        return ValueTranslatorFactory.createValueTranslator(getValueClass());
    }

    public void setDescription(String description) {
        String oldValue = this.description;
        this.description = description;
        firePropertyChange(PROPERTY_DESCRIPTION, oldValue, description);
    }

    public void setId(String id) {
        String old = this.id;
        this.id = id;
        firePropertyChange(PROPERTY_ID, old, id);
    }

    public void setName(String name) {
        String old = this.name;
        this.name = name;
        firePropertyChange(PROPERTY_NAME, old, name);
    }

    public void setValueClass(Class<T> valueClass) {
        Class old = this.valueClass;
        this.valueClass = valueClass;
        firePropertyChange(PROPERTY_VALUE_CLASS, old, valueClass);
    }

    public String getDescriptionUrl() {
        return descriptionUrl;
    }

    public void setDescriptionUrl(String descriptionUrl) {
        String old = this.descriptionUrl;
        this.descriptionUrl = descriptionUrl;
        firePropertyChange(PROPERTY_DESCRIPTION_URL, old, descriptionUrl);
    }

    public String getValueUrl() {
        return valueUrl;
    }

    public void setValueUrl(String valueUrl) {
        String old = this.valueUrl;
        this.valueUrl = valueUrl;
        firePropertyChange(PROPERTY_VALUE_URL, old, valueUrl);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        MatrixLayer that = (MatrixLayer) o;

        return !(id != null ? !id.equals(that.id) : that.id != null);

    }

    @Override
    public int hashCode() {
        return id != null ? id.hashCode() : 0;
    }

    public String toString() {
        return (name != null ? name : id);
    }

    @Override
    public void detach() {
        this.cache = null;
    }

    transient Map<IKey, Object> cache;

    public <T> void setCache(IKey<T> key, T value) {
        this.getCacheMap().put(key, value);
    }

    public <T> T getCache(IKey<T> key) {
        return (T) this.getCacheMap().get(key);
    }

    private Map<IKey, Object> getCacheMap() {
        if (cache == null) {
            cache = new HashMap<>();
        }
        return cache;
    }
}