// 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 "sgreadyadapter.h"

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

#include <QLoggingCategory>
#include <QTimer>

Q_DECLARE_LOGGING_CATEGORY(dcNymeaEnergy)

SgReadyAdapter::SgReadyAdapter(ThingManager *thingManager,
                               const ThingId &relay1ThingId,
                               const ThingId &relay2ThingId,
                               double normalPowerW,
                               QObject *parent)
    : ILoadAdapter(parent),
      m_thingManager(thingManager),
      m_normalPowerW(normalPowerW)
{
    m_relay1 = thingManager->findConfiguredThing(relay1ThingId);
    m_relay2 = thingManager->findConfiguredThing(relay2ThingId);

    if (!m_relay1)
        qCWarning(dcNymeaEnergy()) << "SgReadyAdapter: relay1 not found:" << relay1ThingId;
    if (!m_relay2)
        qCWarning(dcNymeaEnergy()) << "SgReadyAdapter: relay2 not found:" << relay2ThingId;
}

QString SgReadyAdapter::adapterId() const
{
    return QStringLiteral("sgready");
}

LoadRole SgReadyAdapter::role() const
{
    return LoadRole::HeatPump;
}

ThingId SgReadyAdapter::thingId() const
{
    return m_relay1 ? m_relay1->id() : ThingId();
}

void SgReadyAdapter::applyPower(double targetPowerW)
{
    SgMode mode;
    if (targetPowerW <= 0)
        mode = SgMode::SG1_Blocked;
    else if (targetPowerW < m_normalPowerW)
        mode = SgMode::SG2_Normal;
    else if (qFuzzyCompare(targetPowerW, m_normalPowerW))
        mode = SgMode::SG3_Surplus;
    else
        mode = SgMode::SG4_Boost;

    applyMode(mode);
}

void SgReadyAdapter::testConnection()
{
    if (!m_relay1 || !m_relay2) {
        emit testResult(false, QStringLiteral("One or both relay Things not found"));
        return;
    }

    // SG2 → wait 1s → SG3 → wait 1s → SG2 → emit success
    applyMode(SgMode::SG2_Normal);
    QTimer::singleShot(1000, this, [this]() {
        applyMode(SgMode::SG3_Surplus);
        QTimer::singleShot(1000, this, [this]() {
            applyMode(SgMode::SG2_Normal);
            emit testResult(true, QStringLiteral("SG-Ready connection test OK"));
        });
    });
}

double SgReadyAdapter::currentPowerW() const
{
    switch (m_currentMode) {
    case SgMode::SG1_Blocked: return 0;
    case SgMode::SG2_Normal:  return m_normalPowerW;
    case SgMode::SG3_Surplus: return m_normalPowerW * 1.2;
    case SgMode::SG4_Boost:   return m_normalPowerW * 1.5;
    }
    return 0;
}

bool SgReadyAdapter::isReachable() const
{
    auto checkConnected = [](Thing *thing) -> bool {
        if (!thing) return false;
        foreach (const StateType &st, thing->thingClass().stateTypes()) {
            if (st.name() == QLatin1String("connected"))
                return thing->stateValue(st.id()).toBool();
        }
        return true;
    };

    return checkConnected(m_relay1) && checkConnected(m_relay2);
}

void SgReadyAdapter::applyMode(SgMode mode)
{
    // SG-Ready contact matrix:
    //   SG1: r1=OFF r2=OFF  (blocked)
    //   SG2: r1=OFF r2=ON   (normal)
    //   SG3: r1=ON  r2=OFF  (surplus)
    //   SG4: r1=ON  r2=ON   (boost)
    bool r1on = (mode == SgMode::SG3_Surplus || mode == SgMode::SG4_Boost);
    bool r2on = (mode == SgMode::SG2_Normal  || mode == SgMode::SG4_Boost);

    setRelayPower(m_relay1, r1on);
    setRelayPower(m_relay2, r2on);

    m_currentMode = mode;

    qCDebug(dcNymeaEnergy()) << "SgReadyAdapter: mode" << static_cast<int>(mode)
                             << "r1=" << r1on << "r2=" << r2on;

    emit powerApplied(currentPowerW(), true);
}

void SgReadyAdapter::setRelayPower(Thing *thing, bool on)
{
    if (!thing)
        return;

    ActionType powerActionType;
    foreach (const ActionType &at, thing->thingClass().actionTypes()) {
        if (at.name() == QLatin1String("power")) {
            powerActionType = at;
            break;
        }
    }
    if (powerActionType.id().isNull()) {
        qCWarning(dcNymeaEnergy()) << "SgReadyAdapter: no 'power' action on" << thing->name();
        return;
    }

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

    Action action(powerActionType.id(), thing->id(), Action::TriggeredByRule);
    action.setParams(ParamList() << Param(powerParamTypeId, on));
    m_thingManager->executeAction(action);
}