/*
 * ToroDB
 * Copyright © 2014 8Kdata Technology (www.8kdata.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package com.torodb.backend.derby.converters.jooq.binding;

import com.torodb.backend.converters.jooq.DataTypeForKv;
import com.torodb.backend.converters.jooq.KvValueConverter;
import com.torodb.kvdocument.values.KvValue;
import org.jooq.Binding;
import org.jooq.BindingGetResultSetContext;
import org.jooq.BindingGetSQLInputContext;
import org.jooq.BindingGetStatementContext;
import org.jooq.BindingRegisterContext;
import org.jooq.BindingSQLContext;
import org.jooq.BindingSetSQLOutputContext;
import org.jooq.BindingSetStatementContext;
import org.jooq.Converter;
import org.jooq.DataType;
import org.jooq.impl.DSL;
import org.jooq.impl.DefaultDataType;
import org.jooq.util.derby.DerbyDataType;

import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.sql.Types;

public class VarcharForBitDataBinding<T> implements Binding<byte[], T> {

  private static final long serialVersionUID = 1L;

  public static <J, U extends KvValue<?>> DataTypeForKv<U> fromKvValue(Class<U> type,
      KvValueConverter<byte[], J, U> converter, int size) {
    return DataTypeForKv.from(new DefaultDataType<>(null, byte[].class,
        "VARCHAR () FOR BIT DATA", "VARCHAR (" + size + ") FOR BIT DATA"), converter,
        new VarcharForBitDataBinding<>(converter), Types.VARBINARY);
  }

  public static <U> DataType<U> fromType(Class<U> type, Converter<byte[], U> converter, int size) {
    return new DefaultDataType<>(null, byte[].class, "VARCHAR () FOR BIT DATA", "VARCHAR ("
        + size + ") FOR BIT DATA").asConvertedDataType(new VarcharForBitDataBinding<U>(converter));
  }

  private final Converter<byte[], T> converter;

  public VarcharForBitDataBinding(Converter<byte[], T> converter) {
    super();
    this.converter = converter;
  }

  @Override
  public Converter<byte[], T> converter() {
    return converter;
  }

  @Override
  public void sql(BindingSQLContext<T> ctx) throws SQLException {
    ctx.render().visit(DSL.val(ctx.convert(converter()).value(), DerbyDataType.VARCHAR));
  }

  @Override
  public void register(BindingRegisterContext<T> ctx) throws SQLException {
    ctx.statement().registerOutParameter(ctx.index(), Types.DATE);
  }

  @Override
  public void set(BindingSetStatementContext<T> ctx) throws SQLException {
    byte[] value = ctx.convert(converter()).value();
    if (value != null) {
      ctx.statement().setBytes(ctx.index(), value);
    } else {
      ctx.statement().setNull(ctx.index(), Types.VARBINARY);
    }
  }

  @Override
  public void set(BindingSetSQLOutputContext<T> ctx) throws SQLException {
    throw new SQLFeatureNotSupportedException();
  }

  @Override
  public void get(BindingGetSQLInputContext<T> ctx) throws SQLException {
    throw new SQLFeatureNotSupportedException();
  }

  @Override
  public void get(BindingGetResultSetContext<T> ctx) throws SQLException {
    ctx.convert(converter()).value(ctx.resultSet().getBytes(ctx.index()));
  }

  @Override
  public void get(BindingGetStatementContext<T> ctx) throws SQLException {
    ctx.convert(converter()).value(ctx.statement().getBytes(ctx.index()));
  }

}