#include "occ_device.hpp"

#include "occ_manager.hpp"
#include "occ_status.hpp"

#include <phosphor-logging/log.hpp>

#include <filesystem>
#include <iostream>

namespace open_power
{
namespace occ
{

using namespace phosphor::logging;

fs::path Device::bindPath = fs::path(OCC_HWMON_PATH) / "bind";
fs::path Device::unBindPath = fs::path(OCC_HWMON_PATH) / "unbind";

std::string Device::getPathBack(const fs::path& path)
{
    if (path.empty())
    {
        return std::string();
    }

    // Points to the last element in the path
    auto conf = --path.end();

    if (conf->empty() && conf != path.begin())
    {
        return *(--conf);
    }
    else
    {
        return *conf;
    }
}

bool Device::master() const
{
    int master;
    auto masterFile = devPath / "occ_master";
    std::ifstream file(masterFile, std::ios::in);

    if (!file)
    {
        return false;
    }

    file >> master;
    file.close();
    return (master != 0);
}

void Device::errorCallback(bool error)
{
    if (error)
    {
        statusObject.deviceError();
    }
}

#ifdef PLDM
void Device::timeoutCallback(bool error)
{
    if (error)
    {
        managerObject.sbeTimeout(instance);
    }
}
#endif

void Device::throttleProcTempCallback(bool error)
{
    statusObject.throttleProcTemp(error);
}

void Device::throttleProcPowerCallback(bool error)
{
    statusObject.throttleProcPower(error);
}

void Device::throttleMemTempCallback(bool error)
{
    statusObject.throttleMemTemp(error);
}

fs::path Device::getFilenameByRegex(fs::path basePath,
                                    const std::regex& expr) const
{
    try
    {
        for (auto& file : fs::directory_iterator(basePath))
        {
            if (std::regex_search(file.path().string(), expr))
            {
                // Found match
                return file;
            }
        }
    }
    catch (const fs::filesystem_error& e)
    {
        log<level::ERR>(
            fmt::format("getFilenameByRegex: Failed to get filename: {}",
                        e.what())
                .c_str());
    }

    // Return empty path
    return fs::path{};
}

} // namespace occ
} // namespace open_power