/*
 * Copyright 1997-2025 Optimatika
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.ojalgo.matrix.store;

import org.ojalgo.structure.Access1D;

final class RepeatedColumnsStore<N extends Comparable<N>> extends ComposingStore<N> {

    private final long myBaseColumns;
    private final int myRepetitions;

    RepeatedColumnsStore(final MatrixStore<N> base, final int repetitions) {
        super(base, base.countRows(), base.countColumns() * repetitions);
        myRepetitions = repetitions;
        myBaseColumns = base.countColumns();
    }

    @Override
    public double doubleValue(final int row, final int col) {
        return this.base().doubleValue(row, col % myBaseColumns);
    }

    @Override
    public N get(final int row, final int col) {
        return this.base().get(row, col % myBaseColumns);
    }

    @Override
    public void supplyTo(final TransformableRegion<N> receiver) {
        for (long bc = 0L; bc < myBaseColumns; bc++) {
            Access1D<N> column = this.base().sliceColumn(bc);
            for (long r = 0L; r < myRepetitions; r++) {
                receiver.fillColumn(bc + myBaseColumns * r, column);
            }
        }
    }

}
