EmlidFile.cpp

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// This file is part of INSTINCT, the INS Toolkit for Integrated
// Navigation Concepts and Training by the Institute of Navigation of
// the University of Stuttgart, Germany.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
#include "EmlidFile.hpp"
 
#include "util/Logger.hpp"
 
#include "internal/FlowManager.hpp"
 
#include "util/Vendor/Emlid/EmlidUtilities.hpp"
#include "util/Time/TimeBase.hpp"
 
#include "NodeData/GNSS/EmlidObs.hpp"
 
NAV::EmlidFile::EmlidFile()
    : Node(typeStatic()), _sensor(typeStatic())
{
    LOG_TRACE("{}: called", name);
 
    _hasConfig = true;
    _guiConfigDefaultWindowSize = { 380, 70 };
 
    CreateOutputPin("EmlidObs", Pin::Type::Flow, { NAV::EmlidObs::type() }, &EmlidFile::pollData);
}
 
NAV::EmlidFile::~EmlidFile()
{
    LOG_TRACE("{}: called", nameId());
}
 
std::string NAV::EmlidFile::typeStatic()
{
    return "EmlidFile";
}
 
std::string NAV::EmlidFile::type() const
{
    return typeStatic();
}
 
std::string NAV::EmlidFile::category()
{
    return "Data Provider";
}
 
void NAV::EmlidFile::guiConfig()
{
    if (auto res = FileReader::guiConfig(".ubx,.*", { ".ubx" }, size_t(id), nameId()))
    {
        LOG_DEBUG("{}: Path changed to {}", nameId(), _path);
        flow::ApplyChanges();
        if (res == FileReader::PATH_CHANGED)
        {
            doReinitialize();
        }
        else
        {
            doDeinitialize();
        }
    }
}
 
[[nodiscard]] json NAV::EmlidFile::save() const
{
    LOG_TRACE("{}: called", nameId());
 
    json j;
 
    j["FileReader"] = FileReader::save();
 
    return j;
}
 
void NAV::EmlidFile::restore(json const& j)
{
    LOG_TRACE("{}: called", nameId());
 
    if (j.contains("FileReader"))
    {
        FileReader::restore(j.at("FileReader"));
    }
}
 
bool NAV::EmlidFile::initialize()
{
    LOG_TRACE("{}: called", nameId());
 
    return FileReader::initialize();
}
 
void NAV::EmlidFile::deinitialize()
{
    LOG_TRACE("{}: called", nameId());
 
    FileReader::deinitialize();
}
 
bool NAV::EmlidFile::resetNode()
{
    FileReader::resetReader();
 
    return true;
}
 
std::shared_ptr<const NAV::NodeData> NAV::EmlidFile::pollData()
{
    uint8_t i = 0;
    std::unique_ptr<uart::protocol::Packet> packet = nullptr;
    while (!eof() && read(reinterpret_cast<char*>(&i), 1))
    {
        packet = _sensor.findPacket(i);
 
        if (packet != nullptr)
        {
            break;
        }
    }
 
    if (!packet)
    {
        return nullptr;
    }
 
    // Check if package is empty
    if (packet->getRawDataLength() == 0)
    {
        return nullptr;
    }
 
    auto obs = std::make_shared<EmlidObs>();
    vendor::emlid::decryptEmlidObs(obs, *packet);
 
    if (obs->insTime.empty())
    {
        if (auto currentTime = util::time::GetCurrentInsTime();
            !currentTime.empty())
        {
            obs->insTime = currentTime;
        }
    }
 
    invokeCallbacks(OUTPUT_PORT_INDEX_EMLID_OBS, obs);
    return obs;
}
 
NAV::FileReader::FileType NAV::EmlidFile::determineFileType()
{
    LOG_TRACE("called for {}", nameId());
 
    auto filestream = std::ifstream(getFilepath());
 
    constexpr uint16_t BUFFER_SIZE = 10;
 
    std::array<char, BUFFER_SIZE> buffer{};
    if (filestream.good())
    {
        filestream.read(buffer.data(), BUFFER_SIZE);
 
        if ((static_cast<uint8_t>(buffer.at(0)) == vendor::emlid::EmlidUartSensor::BINARY_SYNC_CHAR_1
             && static_cast<uint8_t>(buffer.at(1)) == vendor::emlid::EmlidUartSensor::BINARY_SYNC_CHAR_2)
            || buffer.at(0) == vendor::emlid::EmlidUartSensor::ASCII_START_CHAR)
        {
            filestream.close();
            LOG_DEBUG("{} has the file type: Binary", nameId());
            return FileType::BINARY;
        }
        filestream.close();
 
        LOG_ERROR("{} could not determine file type", nameId());
        return FileType::NONE;
    }
 
    LOG_ERROR("{} could not open file {}", nameId(), getFilepath());
    return FileType::NONE;
}