/* SPDX-FileCopyrightText: 2026 Project Tick
 * SPDX-FileContributor: Project Tick
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 *   MeshMC - A Custom Launcher for Minecraft
 *   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, 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 <https://www.gnu.org/licenses/>.
 */

#include "LaunchProfile.h"
#include <Version.h>

void LaunchProfile::clear()
{
	m_minecraftVersion.clear();
	m_minecraftVersionType.clear();
	m_minecraftAssets.reset();
	m_minecraftArguments.clear();
	m_tweakers.clear();
	m_mainClass.clear();
	m_appletClass.clear();
	m_libraries.clear();
	m_mavenFiles.clear();
	m_traits.clear();
	m_jarMods.clear();
	m_mainJar.reset();
	m_problemSeverity = ProblemSeverity::None;
}

static void applyString(const QString& from, QString& to)
{
	if (from.isEmpty())
		return;
	to = from;
}

void LaunchProfile::applyMinecraftVersion(const QString& id)
{
	applyString(id, this->m_minecraftVersion);
}

void LaunchProfile::applyAppletClass(const QString& appletClass)
{
	applyString(appletClass, this->m_appletClass);
}

void LaunchProfile::applyMainClass(const QString& mainClass)
{
	applyString(mainClass, this->m_mainClass);
}

void LaunchProfile::applyMinecraftArguments(const QString& minecraftArguments)
{
	applyString(minecraftArguments, this->m_minecraftArguments);
}

void LaunchProfile::applyMinecraftVersionType(const QString& type)
{
	applyString(type, this->m_minecraftVersionType);
}

void LaunchProfile::applyMinecraftAssets(MojangAssetIndexInfo::Ptr assets)
{
	if (assets) {
		m_minecraftAssets = assets;
	}
}

void LaunchProfile::applyTraits(const QSet<QString>& traits)
{
	this->m_traits.unite(traits);
}

void LaunchProfile::applyTweakers(const QStringList& tweakers)
{
	// if the applied tweakers override an existing one, skip it. this
	// effectively moves it later in the sequence
	QStringList newTweakers;
	for (auto& tweaker : m_tweakers) {
		if (tweakers.contains(tweaker)) {
			continue;
		}
		newTweakers.append(tweaker);
	}
	// then just append the new tweakers (or moved original ones)
	newTweakers += tweakers;
	m_tweakers = newTweakers;
}

void LaunchProfile::applyJarMods(const QList<LibraryPtr>& jarMods)
{
	this->m_jarMods.append(jarMods);
}

static int findLibraryByName(QList<LibraryPtr>* haystack,
							 const GradleSpecifier& needle)
{
	int retval = -1;
	for (int i = 0; i < haystack->size(); ++i) {
		if (haystack->at(i)->rawName().matchName(needle)) {
			// only one is allowed.
			if (retval != -1)
				return -1;
			retval = i;
		}
	}
	return retval;
}

void LaunchProfile::applyMods(const QList<LibraryPtr>& mods)
{
	QList<LibraryPtr>* list = &m_mods;
	for (auto& mod : mods) {
		auto modCopy = Library::limitedCopy(mod);

		// find the mod by name.
		const int index = findLibraryByName(list, mod->rawName());
		// mod not found? just add it.
		if (index < 0) {
			list->append(modCopy);
			return;
		}

		auto existingLibrary = list->at(index);
		// if we are higher it means we should update
		if (Version(mod->version()) > Version(existingLibrary->version())) {
			list->replace(index, modCopy);
		}
	}
}

void LaunchProfile::applyLibrary(LibraryPtr library)
{
	if (!library->isActive()) {
		return;
	}

	QList<LibraryPtr>* list = &m_libraries;
	if (library->isNative()) {
		list = &m_nativeLibraries;
	}

	auto libraryCopy = Library::limitedCopy(library);

	// find the library by name.
	const int index = findLibraryByName(list, library->rawName());
	// library not found? just add it.
	if (index < 0) {
		list->append(libraryCopy);
		return;
	}

	auto existingLibrary = list->at(index);
	// if we are higher it means we should update
	if (Version(library->version()) > Version(existingLibrary->version())) {
		list->replace(index, libraryCopy);
	}
}

void LaunchProfile::applyMavenFile(LibraryPtr mavenFile)
{
	if (!mavenFile->isActive()) {
		return;
	}

	if (mavenFile->isNative()) {
		return;
	}

	// unlike libraries, we do not keep only one version or try to dedupe them
	m_mavenFiles.append(Library::limitedCopy(mavenFile));
}

const LibraryPtr LaunchProfile::getMainJar() const
{
	return m_mainJar;
}

void LaunchProfile::applyMainJar(LibraryPtr jar)
{
	if (jar) {
		m_mainJar = jar;
	}
}

void LaunchProfile::applyProblemSeverity(ProblemSeverity severity)
{
	if (m_problemSeverity < severity) {
		m_problemSeverity = severity;
	}
}

const QList<PatchProblem> LaunchProfile::getProblems() const
{
	// FIXME: implement something that actually makes sense here
	return {};
}

QString LaunchProfile::getMinecraftVersion() const
{
	return m_minecraftVersion;
}

QString LaunchProfile::getAppletClass() const
{
	return m_appletClass;
}

QString LaunchProfile::getMainClass() const
{
	return m_mainClass;
}

const QSet<QString>& LaunchProfile::getTraits() const
{
	return m_traits;
}

const QStringList& LaunchProfile::getTweakers() const
{
	return m_tweakers;
}

bool LaunchProfile::hasTrait(const QString& trait) const
{
	return m_traits.contains(trait);
}

ProblemSeverity LaunchProfile::getProblemSeverity() const
{
	return m_problemSeverity;
}

QString LaunchProfile::getMinecraftVersionType() const
{
	return m_minecraftVersionType;
}

std::shared_ptr<MojangAssetIndexInfo> LaunchProfile::getMinecraftAssets() const
{
	if (!m_minecraftAssets) {
		return std::make_shared<MojangAssetIndexInfo>("legacy");
	}
	return m_minecraftAssets;
}

QString LaunchProfile::getMinecraftArguments() const
{
	return m_minecraftArguments;
}

const QList<LibraryPtr>& LaunchProfile::getJarMods() const
{
	return m_jarMods;
}

const QList<LibraryPtr>& LaunchProfile::getLibraries() const
{
	return m_libraries;
}

const QList<LibraryPtr>& LaunchProfile::getNativeLibraries() const
{
	return m_nativeLibraries;
}

const QList<LibraryPtr>& LaunchProfile::getMavenFiles() const
{
	return m_mavenFiles;
}

void LaunchProfile::getLibraryFiles(const QString& architecture,
									QStringList& jars, QStringList& nativeJars,
									const QString& overridePath,
									const QString& tempPath) const
{
	QStringList native32, native64;
	jars.clear();
	nativeJars.clear();
	for (auto lib : getLibraries()) {
		lib->getApplicableFiles(currentSystem, jars, nativeJars, native32,
								native64, overridePath);
	}
	// NOTE: order is important here, add main jar last to the lists
	if (m_mainJar) {
		// FIXME: HACK!! jar modding is weird and unsystematic!
		if (m_jarMods.size()) {
			QDir tempDir(tempPath);
			jars.append(tempDir.absoluteFilePath("minecraft.jar"));
		} else {
			m_mainJar->getApplicableFiles(currentSystem, jars, nativeJars,
										  native32, native64, overridePath);
		}
	}
	for (auto lib : getNativeLibraries()) {
		lib->getApplicableFiles(currentSystem, jars, nativeJars, native32,
								native64, overridePath);
	}
	if (architecture == "32") {
		nativeJars.append(native32);
	} else if (architecture == "64") {
		nativeJars.append(native64);
	}
}