/*
Copyright (C) 2011 Srivats P.

This file is part of "Ostinato"

This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>
*/

#include "portconfigdialog.h"
#include "settings.h"

PortConfigDialog::PortConfigDialog(
    OstProto::Port &portConfig,
    const OstProto::PortState &portState,
    QWidget *parent)
        : QDialog(parent), portConfig_(portConfig)
{
    QString currentUser(portConfig_.user_name().c_str());

    qDebug("In %s", __FUNCTION__);

    setupUi(this);

    description->setPlaceholderText(portConfig_.description().c_str());
    description->setText(portConfig_.user_description().c_str());
    switch(portConfig_.transmit_mode())
    {
    case OstProto::kSequentialTransmit:
        sequentialStreamsButton->setChecked(true);
        break;
    case OstProto::kInterleavedTransmit:
        interleavedStreamsButton->setChecked(true);
        break;
    default:
        Q_ASSERT(false); // Unreachable!!!
        break;
    }

    // Port Reservation
    myself_ = appSettings->value(kUserKey, kUserDefaultValue).toString();
    // XXX: what if myself_ is empty?
    if (currentUser.isEmpty()) {
        reservedBy_ = kNone;
        reservedBy->setText("Unreserved");
        reserveButton->setText("Reserve");
    }
    else if (currentUser == myself_) {
        reservedBy_ = kSelf;
        reservedBy->setText("Reserved by: me <i>("+currentUser+")</i>");
        reserveButton->setText("Reserve (uncheck to unreserve)");
        reserveButton->setChecked(true);
    }
    else {
        reservedBy_ = kOther;
        reservedBy->setText("Reserved by: <i>"+currentUser+"</i>");
        reserveButton->setText("Force reserve");
    }
    qDebug("reservedBy_ = %d", reservedBy_);

    exclusiveControlButton->setChecked(portConfig_.is_exclusive_control());
    streamStatsButton->setChecked(portConfig_.is_tracking_stream_stats());

    // Disable UI elements based on portState
    if (portState.is_transmit_on()) {
        transmitModeBox->setDisabled(true);
        streamStatsButton->setDisabled(true);
    }
}

void PortConfigDialog::accept()
{
    OstProto::Port pc;

    pc.set_user_description(description->text().toStdString());

    if (sequentialStreamsButton->isChecked())
        pc.set_transmit_mode(OstProto::kSequentialTransmit);
    else if (interleavedStreamsButton->isChecked())
        pc.set_transmit_mode(OstProto::kInterleavedTransmit);
    else
        Q_ASSERT(false); // Unreachable!!!

    pc.set_user_name(portConfig_.user_name());
    switch (reservedBy_) {
        case kSelf:
            if (!reserveButton->isChecked())
                pc.set_user_name(""); // unreserve
            break;

        case kOther:
        case kNone:
            if (reserveButton->isChecked())
                pc.set_user_name(myself_.toStdString()); // (force) reserve
            break;

        default:
            qWarning("Unreachable code");
            break;
    }

    pc.set_is_exclusive_control(exclusiveControlButton->isChecked());
    pc.set_is_tracking_stream_stats(streamStatsButton->isChecked());

    // Update fields that have changed, clear the rest
    if (pc.user_description() != portConfig_.user_description())
        portConfig_.set_user_description(pc.user_description());
    else
        portConfig_.clear_user_description();

    if (pc.transmit_mode() != portConfig_.transmit_mode())
        portConfig_.set_transmit_mode(pc.transmit_mode());
    else
        portConfig_.clear_transmit_mode();

    if (pc.user_name() != portConfig_.user_name())
        portConfig_.set_user_name(pc.user_name());
    else
        portConfig_.clear_user_name();

    if (pc.is_exclusive_control() != portConfig_.is_exclusive_control())
        portConfig_.set_is_exclusive_control(pc.is_exclusive_control());
    else
        portConfig_.clear_is_exclusive_control();

    if (pc.is_tracking_stream_stats() != portConfig_.is_tracking_stream_stats())
        portConfig_.set_is_tracking_stream_stats(pc.is_tracking_stream_stats());
    else
        portConfig_.clear_is_tracking_stream_stats();

    QDialog::accept();
}