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package com.spun.util.io.xml;

import com.spun.util.ClassUtils;
import com.spun.util.ObjectUtils;
import com.spun.util.database.DatabaseObject;
import com.spun.util.database.Syncable;
import com.spun.util.database.TemporaryCache;
import com.spun.util.database.XmlDatabaseMapExtractor;
import com.spun.util.io.XMLUtils;
import org.lambda.query.Query;
import org.w3c.dom.Node;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Stream;

public class DatabaseObjectXMLUtils
{
  @SuppressWarnings("unchecked")
  public static DatabaseObject[] extract(String xml, XmlMap[] xmlMaps)
  {
    try
    {
      DatabaseObject[] objects = extract(XMLUtils.parseXML(xml), xmlMaps);
      TemporaryCache cache = new TemporaryCache<>(objects);
      cache.forceGenericObjectType();
      Stream.of(objects).map(o -> (Syncable) o).forEach(s -> s.sync(cache));
      return Query.orderBy(objects, a -> a.getPkey());
    }
    catch (Throwable t)
    {
      throw ObjectUtils.throwAsError(t);
    }
  }
  private static DatabaseObject[] extract(Node node, XmlMap[] xmlMaps) throws Exception
  {
    ArrayList list = new ArrayList();
    XmlExtractorUtil.extractAndTranslateForNode(XmlExtractorUtil.traverseToTag("data", node), list,
        XmlMapTranslator.get(ArrayList.class, xmlMaps));
    return list.toArray(new DatabaseObject[list.size()]);
  }
  public static XmlMap map(Class clazz)
  {
    return new XmlMap(ClassUtils.getClassName(clazz), "add", new XmlDatabaseMapExtractor(clazz));
  }
  @SuppressWarnings("unchecked")
  public static  T[] extractClass(Class clazz, DatabaseObject[] databaseObjects)
  {
    List list = Query.where(databaseObjects, d -> clazz.isInstance(d));
    return list.toArray((T[]) Array.newInstance(clazz, list.size()));
  }
  public static void mockOld(DatabaseObject[] objects)
  {
    for (DatabaseObject object : objects)
    {
      object.setNew(false);
    }
  }
}