/* 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 <QList>
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonDocument>

namespace JavaDownload
{

	struct RuntimeVersion {
		int major = 0;
		int minor = 0;
		int security = 0;
		int build = 0;

		QString toString() const
		{
			if (build > 0)
				return QString("%1.%2.%3+%4")
					.arg(major)
					.arg(minor)
					.arg(security)
					.arg(build);
			return QString("%1.%2.%3").arg(major).arg(minor).arg(security);
		}
	};

	struct RuntimeEntry {
		QString name;
		QString url;
		QString checksumHash;
		QString checksumType;
		QString downloadType;
		QString packageType;
		QString releaseTime;
		QString runtimeOS;
		QString vendor;
		RuntimeVersion version;
	};

	struct JavaVersionInfo {
		QString uid;
		QString versionId;
		QString name;
		QString sha256;
		QString releaseTime;
		bool recommended = false;
	};

	struct JavaProviderInfo {
		QString uid;
		QString name;
		QString iconName;

		static QList<JavaProviderInfo> availableProviders()
		{
			return {
				{"net.adoptium.java", "Eclipse Adoptium", "adoptium"},
				{"com.azul.java", "Azul Zulu", "azul"},
				{"com.ibm.java", "IBM Semeru (OpenJ9)", "openj9_hex_custom"},
				{"net.minecraft.java", "Mojang", "mojang"},
			};
		}
	};

	inline QString currentRuntimeOS()
	{
#if defined(Q_OS_LINUX)
#if defined(__aarch64__)
		return "linux-arm64";
#elif defined(__riscv)
		return "linux-riscv64";
#else
		return "linux-x64";
#endif
#elif defined(Q_OS_MACOS)
#if defined(__aarch64__)
		return "mac-os-arm64";
#else
		return "mac-os-x64";
#endif
#elif defined(Q_OS_WIN)
#if defined(__aarch64__) || defined(_M_ARM64)
		return "windows-arm64";
#else
		return "windows-x64";
#endif
#else
		return "unknown";
#endif
	}

	inline RuntimeEntry parseRuntimeEntry(const QJsonObject& obj)
	{
		RuntimeEntry entry;
		entry.name = obj["name"].toString();
		entry.url = obj["url"].toString();
		entry.downloadType = obj["downloadType"].toString();
		entry.packageType = obj["packageType"].toString();
		entry.releaseTime = obj["releaseTime"].toString();
		entry.runtimeOS = obj["runtimeOS"].toString();
		entry.vendor = obj["vendor"].toString();

		auto checksum = obj["checksum"].toObject();
		entry.checksumHash = checksum["hash"].toString();
		entry.checksumType = checksum["type"].toString();

		auto ver = obj["version"].toObject();
		entry.version.major = ver["major"].toInt();
		entry.version.minor = ver["minor"].toInt();
		entry.version.security = ver["security"].toInt();
		entry.version.build = ver["build"].toInt();

		return entry;
	}

	inline QList<RuntimeEntry> parseRuntimes(const QJsonObject& obj)
	{
		QList<RuntimeEntry> entries;
		auto arr = obj["runtimes"].toArray();
		for (const auto& val : arr) {
			entries.append(parseRuntimeEntry(val.toObject()));
		}
		return entries;
	}

	inline QList<JavaVersionInfo> parseVersionIndex(const QJsonObject& obj,
													const QString& uid)
	{
		QList<JavaVersionInfo> versions;
		auto arr = obj["versions"].toArray();
		for (const auto& val : arr) {
			auto vObj = val.toObject();
			JavaVersionInfo info;
			info.uid = uid;
			info.versionId = vObj["version"].toString();
			info.sha256 = vObj["sha256"].toString();
			info.releaseTime = vObj["releaseTime"].toString();
			info.recommended = vObj["recommended"].toBool(false);
			info.name = obj["name"].toString();
			versions.append(info);
		}
		return versions;
	}

} // namespace JavaDownload