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/*
 * 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
 *
 *
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 */
package org.jooq.impl;

import static java.util.Arrays.asList;
// ...
// ...
import static org.jooq.SQLDialect.POSTGRES;
import static org.jooq.SQLDialect.YUGABYTEDB;
import static org.jooq.impl.Cast.renderCastIf;
import static org.jooq.impl.Keywords.K_ARRAY;
import static org.jooq.impl.Keywords.K_INT;
import static org.jooq.impl.Names.N_ARRAY;

import java.util.Collection;
import java.util.Set;

import org.jooq.Context;
import org.jooq.DataType;
import org.jooq.Field;
import org.jooq.QueryPart;
import org.jooq.Record;
import org.jooq.RenderContext.CastMode;
// ...
import org.jooq.SQLDialect;
// ...
import org.jooq.impl.QOM.UnmodifiableList;

/**
 * @author Lukas Eder
 */
final class Array extends AbstractField implements QOM.Array {

    private static final Set REQUIRES_CAST = SQLDialect.supportedBy(POSTGRES, YUGABYTEDB);

    private final FieldsImpl     fields;

    Array(Collection> fields) {
        super(N_ARRAY, type(fields));

        this.fields = new FieldsImpl<>(fields);
    }

    // -------------------------------------------------------------------------
    // XXX: QueryPart API
    // -------------------------------------------------------------------------

    @Override
    public boolean generatesCast() {
        return true;
    }

    @SuppressWarnings({ "rawtypes", "unchecked" })
    private static  DataType type(Collection> fields) {
        if (fields == null || fields.isEmpty())
            return (DataType) SQLDataType.OTHER.getArrayDataType();
        else
            return fields.iterator().next().getDataType().getArrayDataType();
    }

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






            default:
                renderCastIf(ctx,
                    c -> {
                        switch (ctx.family()) {






                            default:
                                ctx.visit(K_ARRAY).sql('[').visit(fields).sql(']');
                                break;
                        }
                    },
                    c -> c.visit(K_INT).sql("[]"),
                    () -> fields.fields.length == 0 && REQUIRES_CAST.contains(ctx.dialect()) && ctx.castMode() != CastMode.NEVER
                );

                break;
        }
    }

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

    @Override
    public final UnmodifiableList> $elements() {
        return QOM.unmodifiable(fields.fields);
    }














}