package org.basex.query.func.db;

import static org.basex.query.QueryError.*;
import static org.basex.util.Token.*;

import java.io.*;

import org.basex.core.cmd.*;
import org.basex.data.*;
import org.basex.io.serial.*;
import org.basex.query.*;
import org.basex.query.func.*;
import org.basex.query.value.item.*;
import org.basex.query.value.seq.*;
import org.basex.util.*;

/**
 * Function implementation.
 *
 * @author BaseX Team 2005-22, BSD License
 * @author Christian Gruen
 */
public final class DbExport extends DbAccess {
  @Override
  public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
    checkCreate(qc);
    final Data data = checkData(qc);
    final String path = string(toToken(exprs[1], qc));
    final Item so = exprs.length > 2 ? exprs[2].item(qc, info) : Empty.VALUE;
    final SerializerOptions sopts = FuncOptions.serializer(so, info);
    try {
      Export.export(data, path, sopts, null);
    } catch(final IOException ex) {
      throw SER_X.get(info, ex);
    }
    return Empty.VALUE;
  }
}
