1 files changed, 151 insertions, 0 deletions
diff --git a/meshmc/launcher/modplatform/flame/FlamePackIndex.cpp b/meshmc/launcher/modplatform/flame/FlamePackIndex.cpp
new file mode 100644
index 0000000000..6808d84f91
--- /dev/null
+++ b/meshmc/launcher/modplatform/flame/FlamePackIndex.cpp
@@ -0,0 +1,151 @@
+/* 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 "FlamePackIndex.h"
+
+#include "Json.h"
+
+void Flame::loadIndexedPack(Flame::IndexedPack& pack, QJsonObject& obj)
+{
+	pack.addonId = Json::requireInteger(obj, "id");
+	pack.name = Json::requireString(obj, "name");
+	pack.description = Json::ensureString(obj, "summary", "");
+
+	// API v1: links.websiteUrl, API v2: websiteUrl at root
+	if (obj.contains("links") && obj.value("links").isObject()) {
+		pack.websiteUrl =
+			Json::ensureString(obj.value("links").toObject(), "websiteUrl", "");
+	} else {
+		pack.websiteUrl = Json::ensureString(obj, "websiteUrl", "");
+	}
+
+	// API v1: logo is a single object, API v2: attachments is an array
+	bool thumbnailFound = false;
+	if (obj.contains("logo") && obj.value("logo").isObject()) {
+		auto logoObj = obj.value("logo").toObject();
+		pack.logoName = Json::ensureString(logoObj, "title", pack.name);
+		pack.logoUrl = Json::ensureString(logoObj, "thumbnailUrl", "");
+		thumbnailFound = !pack.logoUrl.isEmpty();
+	}
+	if (!thumbnailFound && obj.contains("attachments")) {
+		auto attachments = Json::requireArray(obj, "attachments");
+		for (auto attachmentRaw : attachments) {
+			auto attachmentObj = Json::requireObject(attachmentRaw);
+			bool isDefault = attachmentObj.value("isDefault").toBool(false);
+			if (isDefault) {
+				thumbnailFound = true;
+				pack.logoName = Json::requireString(attachmentObj, "title");
+				pack.logoUrl =
+					Json::requireString(attachmentObj, "thumbnailUrl");
+				break;
+			}
+		}
+	}
+	if (!thumbnailFound) {
+		pack.logoName = pack.name;
+		pack.logoUrl = "";
+	}
+
+	auto authors = Json::requireArray(obj, "authors");
+	for (auto authorIter : authors) {
+		auto author = Json::requireObject(authorIter);
+		Flame::ModpackAuthor packAuthor;
+		packAuthor.name = Json::requireString(author, "name");
+		packAuthor.url = Json::ensureString(author, "url", "");
+		pack.authors.append(packAuthor);
+	}
+
+	// API v1: mainFileId, API v2: defaultFileId
+	int defaultFileId = 0;
+	if (obj.contains("mainFileId")) {
+		defaultFileId = Json::requireInteger(obj, "mainFileId");
+	} else {
+		defaultFileId = Json::requireInteger(obj, "defaultFileId");
+	}
+
+	bool found = false;
+	// check if there are some files before adding the pack
+	auto files = Json::ensureArray(obj, "latestFiles");
+	for (auto fileIter : files) {
+		auto file = Json::requireObject(fileIter);
+		int id = Json::requireInteger(file, "id");
+
+		// NOTE: for now, ignore everything that's not the default...
+		if (id != defaultFileId) {
+			continue;
+		}
+
+		// API v1: gameVersions, API v2: gameVersion
+		QJsonArray versionArray;
+		if (file.contains("gameVersions")) {
+			versionArray = Json::requireArray(file, "gameVersions");
+		} else {
+			versionArray = Json::requireArray(file, "gameVersion");
+		}
+		if (versionArray.size() < 1) {
+			continue;
+		}
+
+		found = true;
+		break;
+	}
+	if (!found) {
+		throw JSONValidationError(
+			QString("Pack with no good file, skipping: %1").arg(pack.name));
+	}
+}
+
+void Flame::loadIndexedPackVersions(Flame::IndexedPack& pack, QJsonArray& arr)
+{
+	QVector<Flame::IndexedVersion> unsortedVersions;
+	for (auto versionIter : arr) {
+		auto version = Json::requireObject(versionIter);
+		Flame::IndexedVersion file;
+
+		file.addonId = pack.addonId;
+		file.fileId = Json::requireInteger(version, "id");
+		QJsonArray versionArray;
+		if (version.contains("gameVersions")) {
+			versionArray = Json::requireArray(version, "gameVersions");
+		} else {
+			versionArray = Json::requireArray(version, "gameVersion");
+		}
+		if (versionArray.size() < 1) {
+			continue;
+		}
+
+		// pick the latest version supported
+		file.mcVersion = versionArray[0].toString();
+		file.version = Json::requireString(version, "displayName");
+		file.downloadUrl = Json::ensureString(version, "downloadUrl", "");
+		file.fileName = Json::ensureString(version, "fileName", "");
+		unsortedVersions.append(file);
+	}
+
+	auto orderSortPredicate = [](const IndexedVersion& a,
+								 const IndexedVersion& b) -> bool {
+		return a.fileId > b.fileId;
+	};
+	std::sort(unsortedVersions.begin(), unsortedVersions.end(),
+			  orderSortPredicate);
+	pack.versions = unsortedVersions;
+	pack.versionsLoaded = true;
+}