/**
 * Copyright © 2019 IBM 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 "../pel.hpp"

#include <CLI/CLI.hpp>
#include <iostream>
#include <string>

using namespace phosphor::logging;
using namespace openpower::pels;

/**
 * @brief get data form raw PEL file.
 * @param[in] std::string Name of file with raw PEL
 * @return std::vector<uint8_t> char vector read from raw PEL file.
 */
std::vector<uint8_t> getFileData(std::string name)
{
    std::ifstream file(name, std::ifstream::in);
    if (file.good())
    {
        std::vector<uint8_t> data{std::istreambuf_iterator<char>(file),
                                  std::istreambuf_iterator<char>()};
        return data;
    }
    else
    {
        printf("Can't open raw PEL file");
        return {};
    }
}

static void exitWithError(const std::string& help, const char* err)
{
    std::cerr << "ERROR: " << err << std::endl << help << std::endl;
    exit(-1);
}

int main(int argc, char** argv)
{
    CLI::App app{"OpenBMC PEL Tool"};
    std::string fileName;
    app.add_option("-f,--file", fileName, "Raw PEL File");
    CLI11_PARSE(app, argc, argv);

    if (!fileName.empty())
    {
        std::vector<uint8_t> data = getFileData(fileName);
        if (!data.empty())
        {
            PEL pel{data};
            pel.toJSON();
        }
        else
        {
            exitWithError(app.help("", CLI::AppFormatMode::All),
                          "Raw PEL file can't be read.");
        }
    }
    else
    {
        exitWithError(app.help("", CLI::AppFormatMode::All),
                      "Raw PEL file path not specified.");
    }
    return 0;
}