/**
 * @file DXLabSuiteCommanderTransceiver.cpp
 * @brief Implementation of the DXLabSuiteCommanderTransceiver class
 * Helper decorator class that encapsulates  the emulation of split TX
 * operation.
 */

#include "EmulateSplitTransceiver.h"

#include <QLoggingCategory>

Q_DECLARE_LOGGING_CATEGORY(emulatesplittransceiver_js8)

EmulateSplitTransceiver::EmulateSplitTransceiver(
    std::unique_ptr<Transceiver> wrapped, QObject *parent)
    : Transceiver{parent}, wrapped_{std::move(wrapped)}, rx_frequency_{0},
      tx_frequency_{0}, split_{false} {
    // Connect update signal of wrapped Transceiver object instance to ours.
    connect(wrapped_.get(), &Transceiver::update, this,
            &EmulateSplitTransceiver::handle_update);

    // Connect other signals of wrapped Transceiver object to our
    // parent matching signals.
    connect(wrapped_.get(), &Transceiver::resolution, this,
            &Transceiver::resolution);
    connect(wrapped_.get(), &Transceiver::finished, this,
            &Transceiver::finished);
    connect(wrapped_.get(), &Transceiver::failure, this, &Transceiver::failure);
}

void EmulateSplitTransceiver::set(TransceiverState const &s,
                                  unsigned sequence_number) noexcept {
    qCDebug(emulatesplittransceiver_js8)
        << "EmulateSplitTransceiver::set: state:" << s
        << "#:" << sequence_number;

    // save for use in updates
    rx_frequency_ = s.frequency();
    tx_frequency_ = s.tx_frequency();
    split_ = s.split();

    TransceiverState emulated_state{s};
    if (s.ptt() && split_)
        emulated_state.frequency(s.tx_frequency());
    emulated_state.split(false);
    emulated_state.tx_frequency(0);
    wrapped_->set(emulated_state, sequence_number);
}

void EmulateSplitTransceiver::handle_update(TransceiverState const &state,
                                            unsigned sequence_number) {
    qCDebug(emulatesplittransceiver_js8)
        << "EmulateSplitTransceiver::handle_update: from wrapped:" << state;

    if (state.split()) {
        Q_EMIT failure(
            tr("Emulated split mode requires rig to be in simplex mode"));
    } else {
        TransceiverState new_state{state};
        // Follow the rig if in RX mode.
        if (state.ptt())
            new_state.frequency(rx_frequency_);

        // These are always what was requested in prior set state operation
        new_state.tx_frequency(tx_frequency_);
        new_state.split(split_);

        qCDebug(emulatesplittransceiver_js8)
            << "EmulateSplitTransceiver::handle_update: signalling:" << state;

        // signal emulated state
        Q_EMIT update(new_state, sequence_number);
    }
}

Q_LOGGING_CATEGORY(emulatesplittransceiver_js8, "emulatesplittransceiver.js8",
                   QtWarningMsg)
