// 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 "adaptersettings.h"

#include <nymeasettings.h>

#include <QSettings>
#include <QLoggingCategory>

Q_DECLARE_LOGGING_CATEGORY(dcNymeaEnergy)

AdapterSettings::AdapterSettings(QObject *parent)
    : QObject(parent)
{
    load();
}

QString AdapterSettings::settingsFilePath() const
{
    // Allow test override via environment variable
    const QString envPath = qEnvironmentVariable("NYMEA_ADAPTER_SETTINGS");
    if (!envPath.isEmpty())
        return envPath;
    return NymeaSettings::settingsPath() + QStringLiteral("/adapters.conf");
}

QList<QVariantMap> AdapterSettings::assignments() const
{
    return m_assignments;
}

void AdapterSettings::save(const QList<QVariantMap> &assignments)
{
    m_assignments = assignments;

    QSettings s(settingsFilePath(), QSettings::IniFormat);
    s.remove(QStringLiteral("roles")); // clear previous

    s.beginWriteArray(QStringLiteral("roles"), m_assignments.size());
    for (int i = 0; i < m_assignments.size(); ++i) {
        s.setArrayIndex(i);
        const QVariantMap &m = m_assignments.at(i);
        for (auto it = m.constBegin(); it != m.constEnd(); ++it) {
            s.setValue(it.key(), it.value());
        }
    }
    s.endArray();

    qCDebug(dcNymeaEnergy()) << "AdapterSettings: saved" << m_assignments.size()
                             << "role assignment(s) to" << settingsFilePath();
}

void AdapterSettings::setAssignment(LoadRole role, const QVariantMap &params)
{
    const QString roleStr = loadRoleToString(role);
    for (int i = 0; i < m_assignments.size(); ++i) {
        if (m_assignments.at(i).value(QStringLiteral("role")).toString() == roleStr) {
            QVariantMap merged = m_assignments.at(i);
            for (auto it = params.constBegin(); it != params.constEnd(); ++it)
                merged.insert(it.key(), it.value());
            merged.insert(QStringLiteral("role"), roleStr);
            m_assignments[i] = merged;
            save(m_assignments);
            return;
        }
    }
    // New assignment
    QVariantMap m = params;
    m.insert(QStringLiteral("role"), roleStr);
    m_assignments.append(m);
    save(m_assignments);
}

void AdapterSettings::removeAssignment(LoadRole role)
{
    const QString roleStr = loadRoleToString(role);
    for (int i = 0; i < m_assignments.size(); ++i) {
        if (m_assignments.at(i).value(QStringLiteral("role")).toString() == roleStr) {
            m_assignments.removeAt(i);
            save(m_assignments);
            return;
        }
    }
}

void AdapterSettings::load()
{
    m_assignments.clear();
    QSettings s(settingsFilePath(), QSettings::IniFormat);

    int count = s.beginReadArray(QStringLiteral("roles"));
    for (int i = 0; i < count; ++i) {
        s.setArrayIndex(i);
        QVariantMap m;
        foreach (const QString &key, s.childKeys())
            m.insert(key, s.value(key));
        if (!m.isEmpty())
            m_assignments.append(m);
    }
    s.endArray();

    qCDebug(dcNymeaEnergy()) << "AdapterSettings: loaded" << m_assignments.size()
                             << "role assignment(s) from" << settingsFilePath();
}