/*

 * Copyright 2022 Uber Technologies, Inc.

 *

 * 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.

 */

/** @file

 * @brief Fuzzer program for internal functions in algos.c

 */

#include "aflHarness.h"

#include "algos.h"

#include "h3api.h"

#include "utility.h"

typedef struct {

    H3Index index;

    Direction dir;

    int rotations;

    H3Index index2;

} inputArgs;

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {

    if (size < sizeof(inputArgs)) {

        return 0;

    }

    const inputArgs *args = (const inputArgs *)data;

    H3Index out;

    int rotations = args->rotations;

    h3NeighborRotations(args->index, args->dir, &rotations, &out);

    directionForNeighbor(args->index, args->index2);

    VertexGraph graph;

    H3Index *h3Set = (H3Index *)data;

    size_t inputSize = size / sizeof(H3Index);

    H3Error err = h3SetToVertexGraph(h3Set, inputSize, &graph);

    if (!err) {

        LinkedGeoPolygon linkedGeoPolygon;

        _vertexGraphToLinkedGeo(&graph, &linkedGeoPolygon);

        H3_EXPORT(destroyLinkedMultiPolygon)(&linkedGeoPolygon);

        destroyVertexGraph(&graph);

    }

    return 0;

}

AFL_HARNESS_MAIN(sizeof(inputArgs));