// SPDX-License-Identifier: GPL-3.0-or-later

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright (C) 2013 - 2024, nymea GmbH
* Copyright (C) 2024 - 2025, chargebyte austria GmbH
*
* This file is part of nymea-energy-plugin-nymea.
*
* nymea-energy-plugin-nymea.s 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.
*
* nymea-energy-plugin-nymea.s 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 nymea-energy-plugin-nymea. If not, see <https://www.gnu.org/licenses/>.
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "relayadapter.h"

#include "types/action.h"
#include "integrations/thingmanager.h"
#include "integrations/thingactioninfo.h"

#include <QLoggingCategory>
#include <QTimer>

Q_DECLARE_LOGGING_CATEGORY(dcNymeaEnergy)

RelayAdapter::RelayAdapter(ThingManager *thingManager,
                           const ThingId &thingId,
                           LoadRole role,
                           double nominalPowerW,
                           QObject *parent)
    : ILoadAdapter(parent),
      m_thingManager(thingManager),
      m_role(role),
      m_nominalPowerW(nominalPowerW)
{
    m_thing = thingManager->findConfiguredThing(thingId);
    if (!m_thing)
        qCWarning(dcNymeaEnergy()) << "RelayAdapter: thing not found:" << thingId;
}

QString RelayAdapter::adapterId() const
{
    return QStringLiteral("relay");
}

LoadRole RelayAdapter::role() const
{
    return m_role;
}

ThingId RelayAdapter::thingId() const
{
    return m_thing ? m_thing->id() : ThingId();
}

void RelayAdapter::applyPower(double targetPowerW)
{
    if (!m_thing) {
        qCWarning(dcNymeaEnergy()) << "RelayAdapter::applyPower: no thing available";
        emit powerApplied(0, false);
        return;
    }
    setPower(targetPowerW > 0);
}

void RelayAdapter::testConnection()
{
    if (!m_thing) {
        emit testResult(false, QStringLiteral("Thing not found"));
        return;
    }

    // Toggle on → wait 2s → toggle off → report success
    setPower(true);
    QTimer::singleShot(2000, this, [this]() {
        setPower(false);
        emit testResult(true, QStringLiteral("Connection test OK"));
    });
}

double RelayAdapter::currentPowerW() const
{
    return m_relayOn ? m_nominalPowerW : 0.0;
}

bool RelayAdapter::isReachable() const
{
    if (!m_thing)
        return false;

    // If the ThingClass has a "connected" state, use it; otherwise assume reachable.
    foreach (const StateType &st, m_thing->thingClass().stateTypes()) {
        if (st.name() == QLatin1String("connected"))
            return m_thing->stateValue(st.id()).toBool();
    }
    return true;
}

void RelayAdapter::setPower(bool on)
{
    if (!m_thing)
        return;

    // Find the "power" action type (relay interface)
    ActionType powerActionType;
    foreach (const ActionType &at, m_thing->thingClass().actionTypes()) {
        if (at.name() == QLatin1String("power")) {
            powerActionType = at;
            break;
        }
    }

    if (powerActionType.id().isNull()) {
        qCWarning(dcNymeaEnergy()) << "RelayAdapter: no 'power' action type on thing"
                                   << m_thing->name();
        emit powerApplied(on ? m_nominalPowerW : 0, false);
        return;
    }

    // Find the "power" param type
    ParamTypeId powerParamTypeId;
    foreach (const ParamType &pt, powerActionType.paramTypes()) {
        if (pt.name() == QLatin1String("power")) {
            powerParamTypeId = pt.id();
            break;
        }
    }

    Action action(powerActionType.id(), m_thing->id(), Action::TriggeredByRule);
    action.setParams(ParamList() << Param(powerParamTypeId, on));

    ThingActionInfo *info = m_thingManager->executeAction(action);
    connect(info, &ThingActionInfo::finished, this, [this, on, info]() {
        bool ok = (info->status() == Thing::ThingErrorNoError);
        if (ok)
            m_relayOn = on;
        emit powerApplied(on ? m_nominalPowerW : 0, ok);
        if (!ok)
            qCWarning(dcNymeaEnergy()) << "RelayAdapter: action failed on" << m_thing->name();
    });
}