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

import static java.util.Objects.requireNonNull;
import static org.jooq.Clause.TEMPLATE;
import static org.jooq.impl.DSL.list;
import static org.jooq.impl.Tools.renderAndBind;
import static org.jooq.impl.Tools.stringLiteral;

import java.util.List;

import org.jooq.Clause;
import org.jooq.Context;
import org.jooq.QueryPart;
import org.jooq.SQL;
import org.jooq.impl.QOM.UEmpty;

final class SQLImpl extends AbstractQueryPart implements SQL, UEmpty {

    private static final Clause[] CLAUSES = { TEMPLATE };
    final String                  sql;
    final boolean                 isName;
    final boolean                 raw;
    final List         substitutes;

    SQLImpl(String sql, boolean raw, Object... input) {
        this.sql = requireNonNull(sql);
        this.raw = raw;
        this.substitutes = Tools.queryParts(input);
        this.isName = substitutes.isEmpty() && isName(sql);
    }

    static final boolean isName(String sql) {
        int l = sql.length();

        // [#14215] Good enough approximation of SQL identifiers
        if (l == 0 || !Character.isJavaIdentifierStart(sql.charAt(0)))
            return false;

        for (int i = 1; i < l; i++)
            if (!Character.isJavaIdentifierPart(sql.charAt(i)))
                return false;

        return true;
    }

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
















            default:
                if (raw)
                    ctx.sql(sql);
                else
                    renderAndBind(ctx, sql, substitutes);

                break;
        }
    }

    @Override
    public final Clause[] clauses(Context ctx) {
        return CLAUSES;
    }

    @Override
    public String toString() {
        return sql;
    }
}