/*
 * 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
 *
 *  https://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
 * Apache-2.0 license and offer limited warranties, support, maintenance, and
 * commercial database integrations.
 *
 * For more information, please visit: https://www.jooq.org/legal/licensing
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */
package org.jooq.impl;

import static org.jooq.SQLDialect.SQLITE;
import static org.jooq.impl.Names.N_RATIO_TO_REPORT;
import static org.jooq.impl.SQLDataType.DECIMAL;
import static org.jooq.impl.SQLDataType.DOUBLE;
import static org.jooq.impl.Tools.castIfNeeded;

import java.math.BigDecimal;
import java.util.function.BiFunction;
import java.util.function.Predicate;

import org.jooq.Context;
import org.jooq.DataType;
import org.jooq.Field;
import org.jooq.Function1;
import org.jooq.QueryPart;
// ...
// ...

import org.jetbrains.annotations.NotNull;

/**
 * @author Lukas Eder
 */
final class RatioToReport
extends
    AbstractAggregateFunction<BigDecimal>
implements
    QOM.RatioToReport
{

    private final Field<? extends Number> field;

    RatioToReport(Field<? extends Number> field) {
        super(N_RATIO_TO_REPORT, DECIMAL, field);

        this.field = field;
    }

    @Override
    public final void accept(Context<?> ctx) {
        switch (ctx.family()) {












            case FIREBIRD:







            case CLICKHOUSE:
            case CUBRID:
            case DUCKDB:
            case MARIADB:
            case MYSQL:
            case POSTGRES:
            case SQLITE:
            case TRINO:
            case YUGABYTEDB:
                DataType<?> cast;

                switch (ctx.family()) {
                    case SQLITE:
                        cast = DOUBLE;
                        break;


                    case FIREBIRD:
                    case TRINO:
                        cast = DECIMAL(38, 19);
                        break;

                    default:
                        cast = DECIMAL;
                        break;
                }

                ctx.visit(castIfNeeded(field, cast))
                   .sql(" / ")
                   .visit(DSL.sum(field));
                acceptOverClause(ctx);
                break;

            default:
                ctx.visit(N_RATIO_TO_REPORT).sql('(').visit(field).sql(')');
                acceptOverClause(ctx);
                break;
        }
    }

    // -------------------------------------------------------------------------
    // XXX: Query Object Model
    // -------------------------------------------------------------------------

    @Override
    public final Field<? extends Number> $field() {
        return field;
    }














}
