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/*
 * Copyright 2016 Objectos, Fábrica de Software LTDA.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.objectos.schema;

import java.util.List;

import br.com.objectos.db.Dialect;
import br.com.objectos.db.SchemaBuilder;

/**
 * @author [email protected] (Marcio Endo)
 */
public class AlterTable implements CanToStringDialect, TableDdl {

  private final String tableName;
  private final List columnDdlList;

  AlterTable(String tableName, List columnDdlList) {
    this.tableName = tableName;
    this.columnDdlList = columnDdlList;
  }

  @Override
  public void accept(TableDefVisitor table) throws DdlException {
    table.visit(this);
  }

  @Override
  public SchemaBuilder render(SchemaBuilder sql) {
    return sql.alterTable(tableName)
        .on(',').join(columnDdlList.stream());
  }

  @Override
  public final String toString(Dialect dialect) {
    SchemaBuilder sql = dialect.sqlBuilder().toSchemaBuilder();
    return render(sql).toString();
  }

  void accept(TableDefDsl table) throws DdlException {
    for (ColumnDdl column : columnDdlList) {
      column.accept(table);
    }
  }

  String tableName() {
    return tableName;
  }

}