/*******************************************************************************
* Copyright 2020-2024 Intel Corporation
*
* 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.
*******************************************************************************/

#include <stdio.h>
#include <stdlib.h>

#include "dnnl_common.hpp"
#include "utils/parser.hpp"
#include "utils/task_executor.hpp"

#include "prelu/prelu.hpp"

namespace prelu {

using create_func_t = std::function<int(
        std::vector<benchdnn_dnnl_wrapper_t<dnnl_primitive_t>> &, const prb_t *,
        res_t *)>;
using check_cache_func_t = std::function<int(
        std::vector<benchdnn_dnnl_wrapper_t<dnnl_primitive_t>> &, const prb_t *,
        res_t *)>;
using do_func_t = std::function<int(
        const std::vector<benchdnn_dnnl_wrapper_t<dnnl_primitive_t>> &,
        const prb_t *, res_t *)>;
using driver_task_executor_t = task_executor_t<prb_t, perf_report_t,
        create_func_t, check_cache_func_t, do_func_t>;

void check_correctness(
        const settings_t &s, driver_task_executor_t &task_executor) {
    for_(const auto &i_dir : s.dir)
    for_(const auto &i_sdt : s.sdt)
    for_(const auto &i_stag : s.stag)
    for_(const auto &i_attr : s.attributes)
    for_(const auto &i_ctx_init : s.ctx_init)
    for (const auto &i_ctx_exe : s.ctx_exe) {
        const prb_t prb(s.prb_vdims, i_dir, i_sdt, i_stag, i_attr, i_ctx_init,
                i_ctx_exe, s.impl_filter);
        if (s.pattern && !match_regex(prb.str(), s.pattern)) return;

        task_executor.submit(
                prb, s.perf_template, createit, check_cacheit, doit);
    }
}

int verify_input(const settings_t &s) {
    // Expect exactly two inputs for problem dimensions.
    static constexpr int n_inputs = 2;

    if (s.prb_vdims.n_inputs() != n_inputs) {
        BENCHDNN_PRINT(0, "%s\n",
                "Error: input tensors were specified in wrong format. "
                "Please use NxNxNxNxN:MxMxMxMxM as a problem description "
                "format.");
    }

    for (const auto &i_sdt : s.sdt) {
        if (i_sdt.size() != 1 && i_sdt.size() != n_inputs) {
            BENCHDNN_PRINT(0, "%s\n",
                    "Error: input data types were specified in wrong format. "
                    "Please use --sdt=X:X format.");
            SAFE_V(FAIL);
        }
    }

    for (const auto &i_stag : s.stag) {
        if (i_stag.size() != n_inputs) {
            BENCHDNN_PRINT(0, "%s\n",
                    "Error: input format tags were specified in wrong format. "
                    "Please use --stag=X:X format.");
            SAFE_V(FAIL);
        }
    }

    return OK;
}

int bench(int argc, char **argv) {
    driver_name = "prelu";
    using namespace parser;
    static settings_t s;
    static const settings_t def {};
    static driver_task_executor_t task_executor;
    for (; argc > 0; --argc, ++argv) {
        const bool parsed_options = parse_bench_settings(argv[0])
                || parse_batch(bench, argv[0])
                || parse_dir(s.dir, def.dir, argv[0])
                || parse_multi_dt(s.sdt, def.sdt, argv[0])
                || parse_multi_tag(s.stag, def.stag, argv[0])
                || parse_driver_shared_settings(s, def, argv[0]);
        if (!parsed_options) {
            catch_unknown_options(argv[0]);

            parse_prb_vdims(s.prb_vdims, argv[0]);

            SAFE(verify_input(s), WARN);
            s.finalize();
            check_correctness(s, task_executor);
        }
    }

    task_executor.flush();

    return parse_last_argument();
}
} // namespace prelu
