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/*
 * Copyright (c) 2009-2016, Data Geekery GmbH (http://www.datageekery.com)
 * All rights reserved.
 *
 * 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.
 *
 * Other licenses:
 * -----------------------------------------------------------------------------
 * Commercial licenses for this work are available. These replace the above
 * ASL 2.0 and offer limited warranties, support, maintenance, and commercial
 * database integrations.
 *
 * For more information, please visit: http://www.jooq.org/licenses
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */
package org.jooq.impl;

import static java.util.Arrays.asList;
// ...
import static org.jooq.SQLDialect.FIREBIRD;
import static org.jooq.SQLDialect.H2;
import static org.jooq.SQLDialect.HSQLDB;
// ...
// ...
// ...
import static org.jooq.impl.ExpressionOperator.BIT_NOT;

import org.jooq.Context;
import org.jooq.Field;
import org.jooq.SQLDialect;

/**
 * @author Lukas Eder
 */
final class Neg extends AbstractField {

    /**
     * Generated UID
     */
    private static final long        serialVersionUID = 7624782102883057433L;

    private final ExpressionOperator operator;
    private final Field           field;

    Neg(Field field, ExpressionOperator operator) {
        super(operator.toSQL() + field.getName(), field.getDataType());

        this.operator = operator;
        this.field = field;
    }

    @Override
    public final void accept(Context ctx) {
        SQLDialect family = ctx.configuration().dialect().family();

        if (operator == BIT_NOT && asList(H2, HSQLDB).contains(family)) {
            ctx.sql("(0 - ")
               .visit(field)
               .sql(" - 1)");
        }







        else if (operator == BIT_NOT && family == FIREBIRD) {
            ctx.keyword("bin_not(")
               .visit(field)
               .sql(')');
        }
        else {
            ctx.sql(operator.toSQL())
               .sql('(')
               .visit(field)
               .sql(')');
        }
    }
}