// SPDX-License-Identifier: GPL-3.0-only AND Apache-2.0
// SPDX-FileCopyrightText: 2026 Project Tick
// SPDX-FileContributor: Project Tick Team
/*
 *  ProjT Launcher - Minecraft Launcher
 *  Copyright (C) 2026 Project Tick
 *
 *  This program 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, version 3.
 *
 *  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, write to the Free Software Foundation,
 *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * === Upstream License Block (Do Not Modify) ==============================
 *
 * Copyright 2013-2021 MultiMC Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ======================================================================== */

#include "settings/SettingsObject.h"
#include <QDebug>
#include "PassthroughSetting.h"
#include "settings/OverrideSetting.h"
#include "settings/Setting.h"

#include <QVariant>

SettingsObject::SettingsObject(QObject* parent) : QObject(parent)
{}

SettingsObject::~SettingsObject()
{
	m_settings.clear();
}

std::shared_ptr<Setting> SettingsObject::registerOverride(std::shared_ptr<Setting> original,
														  std::shared_ptr<Setting> gate)
{
	if (contains(original->id()))
	{
		qCritical() << QString("Failed to register setting %1. ID already exists.").arg(original->id());
		return nullptr; // Fail
	}
	auto override		= std::make_shared<OverrideSetting>(original, gate);
	override->m_storage = this;
	connectSignals(*override);
	m_settings.insert(override->id(), override);
	return override;
}

std::shared_ptr<Setting> SettingsObject::registerPassthrough(std::shared_ptr<Setting> original,
															 std::shared_ptr<Setting> gate)
{
	if (contains(original->id()))
	{
		qCritical() << QString("Failed to register setting %1. ID already exists.").arg(original->id());
		return nullptr; // Fail
	}
	auto passthrough	   = std::make_shared<PassthroughSetting>(original, gate);
	passthrough->m_storage = this;
	connectSignals(*passthrough);
	m_settings.insert(passthrough->id(), passthrough);
	return passthrough;
}

std::shared_ptr<Setting> SettingsObject::registerSetting(QStringList synonyms, QVariant defVal)
{
	if (synonyms.empty())
		return nullptr;
	if (contains(synonyms.first()))
	{
		qCritical() << QString("Failed to register setting %1. ID already exists.").arg(synonyms.first());
		return nullptr; // Fail
	}
	auto setting	   = std::make_shared<Setting>(synonyms, defVal);
	setting->m_storage = this;
	connectSignals(*setting);
	m_settings.insert(setting->id(), setting);
	return setting;
}

std::shared_ptr<Setting> SettingsObject::getSetting(const QString& id) const
{
	// Make sure there is a setting with the given ID.
	if (!m_settings.contains(id))
		return NULL;

	return m_settings[id];
}

QVariant SettingsObject::get(const QString& id) const
{
	auto setting = getSetting(id);
	return (setting ? setting->get() : QVariant());
}

bool SettingsObject::set(const QString& id, QVariant value)
{
	auto setting = getSetting(id);
	if (!setting)
	{
		qCritical() << QString("Error changing setting %1. Setting doesn't exist.").arg(id);
		return false;
	}
	else
	{
		setting->set(value);
		return true;
	}
}

void SettingsObject::reset(const QString& id) const
{
	auto setting = getSetting(id);
	if (setting)
		setting->reset();
}

bool SettingsObject::contains(const QString& id)
{
	return m_settings.contains(id);
}

bool SettingsObject::reload()
{
	for (auto setting : m_settings.values())
	{
		setting->set(setting->get());
	}
	return true;
}

void SettingsObject::connectSignals(const Setting& setting)
{
	connect(&setting, &Setting::SettingChanged, this, &SettingsObject::changeSetting);
	connect(&setting, &Setting::SettingChanged, this, &SettingsObject::SettingChanged);

	connect(&setting, &Setting::settingReset, this, &SettingsObject::resetSetting);
	connect(&setting, &Setting::settingReset, this, &SettingsObject::settingReset);
}

std::shared_ptr<Setting> SettingsObject::getOrRegisterSetting(const QString& id, QVariant defVal)
{
	return contains(id) ? getSetting(id) : registerSetting(id, defVal);
}