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package io.legaldocml.akn.element;

import com.google.common.collect.ImmutableMap;
import io.legaldocml.akn.AknObject;
import io.legaldocml.akn.attribute.Date;
import io.legaldocml.akn.group.ANtitleInline;
import io.legaldocml.akn.visitor.AknVisitor;
import io.legaldocml.io.AttributeGetterSetter;
import io.legaldocml.io.XmlWriter;
import io.legaldocml.io.impl.Buffers;

import java.io.IOException;
import java.time.OffsetDateTime;

import static io.legaldocml.akn.AknAttributes.DATE;
import static io.legaldocml.akn.AknElements.DOC_DATE;
import static io.legaldocml.akn.element.Attributes.attributeGetterSetter4DateTime;
import static io.legaldocml.akn.util.XmlWriterHelper.writeDate;
import static io.legaldocml.unsafe.UnsafeHelper.getFieldOffset;

/**
 * The element docDate is an inline element within preface to identify the string used by the document for its own
 * date(s). Documents with multiple dates may use multiple docDate elements.
 * 
 * 
 *   
 * 	   
 * 	     
 * 		   
 * 		     
 * 		   
 * 	     
 * 	   
 *   
 * 
 *
 * @author Jacques Militello
 */
public final class DocDate extends InlineType implements Date, ANtitleInline {

    /**
     * Memory address.
     */
    private static final long ADDRESS_DOC_DATE = Buffers.address(DOC_DATE);

    private static final ImmutableMap> ATTRIBUTES;

    static {
        ATTRIBUTES = ImmutableMap.>builder()
                .putAll(InlineType.ATTRIBUTES)
                .put(DATE, attributeGetterSetter4DateTime(DATE, getFieldOffset(DocDate.class, "date")))
                .build();
    }

    // Mandatory
    private OffsetDateTime date;

    /**
     * {@inheritDoc}
     */
    @Override
    public OffsetDateTime getDate() {
        return this.date;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void setDate(OffsetDateTime date) {
        this.date = date;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void write(XmlWriter writer) throws IOException {
        writer.writeStart(ADDRESS_DOC_DATE, 7);
        writeDate(writer, this);
        super.write(writer);
        writer.writeEnd(ADDRESS_DOC_DATE, 7);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ImmutableMap> attributes() {
        return ATTRIBUTES;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String name() {
        return DOC_DATE;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void accept(AknVisitor visitor) {
        if (visitor.visitEnter(this)) {
            super.accept(visitor);
            visitor.visitLeave(this);
        }
    }


}