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/* 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/>.
 */

#pragma once

#include <QString>
#include <QStringList>
#include <QRegularExpression>
#include "DefaultVariable.h"

struct GradleSpecifier {
	GradleSpecifier()
	{
		m_valid = false;
	}
	GradleSpecifier(QString value)
	{
		operator=(value);
	}
	GradleSpecifier& operator=(const QString& value)
	{
		/*
		org.gradle.test.classifiers : service : 1.0 : jdk15 @ jar
		 0 "org.gradle.test.classifiers:service:1.0:jdk15@jar"
		 1 "org.gradle.test.classifiers"
		 2 "service"
		 3 "1.0"
		 4 "jdk15"
		 5 "jar"
		*/
		QRegularExpression matcher("^([^:@]+):([^:@]+):([^:@]+)"
								   "(?::([^:@]+))?"
								   "(?:@([^:@]+))?$");
		auto match = matcher.match(value);
		m_valid = match.hasMatch();
		if (!m_valid) {
			m_invalidValue = value;
			return *this;
		}
		m_groupId = match.captured(1);
		m_artifactId = match.captured(2);
		m_version = match.captured(3);
		m_classifier = match.captured(4);
		auto ext = match.captured(5);
		if (!ext.isEmpty()) {
			m_extension = ext;
		}
		return *this;
	}
	QString serialize() const
	{
		if (!m_valid) {
			return m_invalidValue;
		}
		QString retval = m_groupId + ":" + m_artifactId + ":" + m_version;
		if (!m_classifier.isEmpty()) {
			retval += ":" + m_classifier;
		}
		if (m_extension.isExplicit()) {
			retval += "@" + m_extension;
		}
		return retval;
	}
	QString getFileName() const
	{
		if (!m_valid) {
			return QString();
		}
		QString filename = m_artifactId + '-' + m_version;
		if (!m_classifier.isEmpty()) {
			filename += "-" + m_classifier;
		}
		filename += "." + m_extension;
		return filename;
	}
	QString toPath(const QString& filenameOverride = QString()) const
	{
		if (!m_valid) {
			return QString();
		}
		QString filename;
		if (filenameOverride.isEmpty()) {
			filename = getFileName();
		} else {
			filename = filenameOverride;
		}
		QString path = m_groupId;
		path.replace('.', '/');
		path += '/' + m_artifactId + '/' + m_version + '/' + filename;
		return path;
	}
	inline bool valid() const
	{
		return m_valid;
	}
	inline QString version() const
	{
		return m_version;
	}
	inline QString groupId() const
	{
		return m_groupId;
	}
	inline QString artifactId() const
	{
		return m_artifactId;
	}
	inline void setClassifier(const QString& classifier)
	{
		m_classifier = classifier;
	}
	inline QString classifier() const
	{
		return m_classifier;
	}
	inline QString extension() const
	{
		return m_extension;
	}
	inline QString artifactPrefix() const
	{
		return m_groupId + ":" + m_artifactId;
	}
	bool matchName(const GradleSpecifier& other) const
	{
		// Classifiers differentiate otherwise identical coordinates (e.g. the
		// base lwjgl-glfw:3.3.2 jar vs lwjgl-glfw:3.3.2:natives-linux).  Two
		// entries with different classifiers must be treated as distinct
		// library entries.
		return other.artifactId() == artifactId() &&
			   other.groupId() == groupId() &&
			   other.m_classifier == m_classifier;
	}
	bool operator==(const GradleSpecifier& other) const
	{
		if (m_groupId != other.m_groupId)
			return false;
		if (m_artifactId != other.m_artifactId)
			return false;
		if (m_version != other.m_version)
			return false;
		if (m_classifier != other.m_classifier)
			return false;
		if (m_extension != other.m_extension)
			return false;
		return true;
	}

  private:
	QString m_invalidValue;
	QString m_groupId;
	QString m_artifactId;
	QString m_version;
	QString m_classifier;
	DefaultVariable<QString> m_extension = DefaultVariable<QString>("jar");
	bool m_valid = false;
};