libnfc_cpptools/libnfc_cpptools/src/libnfc/LibNfcInternal.cpp

//
// Created by robin on 6/19/16.
//

#include <boost/shared_ptr.hpp>
#include "LibNfcInternal.h"

namespace LibNfc
{
namespace Core
{

LibNfcInternal::LibNfcInternal()
    : _context(0)
{
}

LibNfcInternal::~LibNfcInternal()
{
    clean();
}

LibNfc::Utils::ResultBool LibNfcInternal::init()
{
    nfc_init(&_context);
    if (!_context) {
        return LibNfc::Utils::ResultBool::error("LibNfc could not be initialized");
    }
    return LibNfc::Utils::ResultBool::ok(true);
}

std::string LibNfcInternal::getVersion()
{
    return nfc_version();
}

void LibNfcInternal::clean()
{
    nfc_exit(_context);
    _context = 0;
}

LibNfc::Utils::Result<std::vector<std::shared_ptr<NfcDeviceInternal>>> LibNfcInternal::getDevices() const
{
    nfc_connstring devices[16];
    ::memset((char*)devices, 0, sizeof(devices));
    size_t count = nfc_list_devices(_context, devices, 16);
    if (count < 0) {
        return LibNfc::Utils::Result<std::vector<std::shared_ptr<NfcDeviceInternal>>>::error("Failed to list NFC devices: " + count);
    }
    std::vector<std::shared_ptr<NfcDeviceInternal>> devicesList;
    for (size_t i = 0; i < count; ++i) {
        devicesList.push_back(std::make_shared<NfcDeviceInternal>(this, devices[i]));
    }
    return LibNfc::Utils::Result<std::vector<std::shared_ptr<NfcDeviceInternal>>>::ok(devicesList);
}

nfc_context *LibNfcInternal::getContext() const
{
    return _context;
}

}; // Core
}; // LibNfc