package org.basex.query.func.fetch;

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

import org.basex.io.*;
import org.basex.query.*;
import org.basex.query.func.*;
import org.basex.query.value.item.*;
import org.basex.util.*;

/**
 * Function implementation.
 *
 * @author BaseX Team 2005-22, BSD License
 * @author Christian Gruen
 */
public final class FetchText extends StandardFunc {
  @Override
  public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
    final byte[] uri = toToken(exprs[0], qc);
    final String encoding = toEncodingOrNull(1, FETCH_ENCODING_X, qc);
    final boolean validate = exprs.length < 3 || !toBoolean(exprs[2], qc);
    return new StrLazy(IO.get(Token.string(uri)), encoding, FETCH_OPEN_X, validate);
  }
}
