4 files changed, 335 insertions, 0 deletions
diff --git a/api/logic/meta/format/Format.cpp b/api/logic/meta/format/Format.cpp
new file mode 100644
index 00000000..a3f9f730
--- /dev/null
+++ b/api/logic/meta/format/Format.cpp
@@ -0,0 +1,84 @@
+/* Copyright 2015-2017 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 "Format.h"
+
+#include "FormatV1.h"
+
+#include "meta/Index.h"
+#include "meta/Version.h"
+#include "meta/VersionList.h"
+
+namespace Meta
+{
+
+static int formatVersion(const QJsonObject &obj)
+{
+	if (!obj.contains("formatVersion")) {
+		throw ParseException(QObject::tr("Missing required field: 'formatVersion'"));
+	}
+	if (!obj.value("formatVersion").isDouble()) {
+		throw ParseException(QObject::tr("Required field has invalid type: 'formatVersion'"));
+	}
+	return obj.value("formatVersion").toInt();
+}
+
+void Format::parseIndex(const QJsonObject &obj, Index *ptr)
+{
+	const int version = formatVersion(obj);
+	switch (version) {
+	case 1:
+		ptr->merge(FormatV1().parseIndexInternal(obj));
+		break;
+	default:
+		throw ParseException(QObject::tr("Unknown formatVersion: %1").arg(version));
+	}
+}
+void Format::parseVersion(const QJsonObject &obj, Version *ptr)
+{
+	const int version = formatVersion(obj);
+	switch (version) {
+	case 1:
+		ptr->merge(FormatV1().parseVersionInternal(obj));
+		break;
+	default:
+		throw ParseException(QObject::tr("Unknown formatVersion: %1").arg(version));
+	}
+}
+void Format::parseVersionList(const QJsonObject &obj, VersionList *ptr)
+{
+	const int version = formatVersion(obj);
+	switch (version) {
+	case 10:
+		ptr->merge(FormatV1().parseVersionListInternal(obj));
+		break;
+	default:
+		throw ParseException(QObject::tr("Unknown formatVersion: %1").arg(version));
+	}
+}
+
+QJsonObject Format::serializeIndex(const Index *ptr)
+{
+	return FormatV1().serializeIndexInternal(ptr);
+}
+QJsonObject Format::serializeVersion(const Version *ptr)
+{
+	return FormatV1().serializeVersionInternal(ptr);
+}
+QJsonObject Format::serializeVersionList(const VersionList *ptr)
+{
+	return FormatV1().serializeVersionListInternal(ptr);
+}
+}
diff --git a/api/logic/meta/format/Format.h b/api/logic/meta/format/Format.h
new file mode 100644
index 00000000..79605a6f
--- /dev/null
+++ b/api/logic/meta/format/Format.h
@@ -0,0 +1,57 @@
+/* Copyright 2015-2017 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.
+ */
+
+#pragma once
+
+#include <QJsonObject>
+#include <memory>
+
+#include "Exception.h"
+#include "meta/BaseEntity.h"
+
+namespace Meta
+{
+class Index;
+class Version;
+class VersionList;
+
+class ParseException : public Exception
+{
+public:
+	using Exception::Exception;
+};
+
+class Format
+{
+public:
+	virtual ~Format() {}
+
+	static void parseIndex(const QJsonObject &obj, Index *ptr);
+	static void parseVersion(const QJsonObject &obj, Version *ptr);
+	static void parseVersionList(const QJsonObject &obj, VersionList *ptr);
+
+	static QJsonObject serializeIndex(const Index *ptr);
+	static QJsonObject serializeVersion(const Version *ptr);
+	static QJsonObject serializeVersionList(const VersionList *ptr);
+
+protected:
+	virtual BaseEntity::Ptr parseIndexInternal(const QJsonObject &obj) const = 0;
+	virtual BaseEntity::Ptr parseVersionInternal(const QJsonObject &obj) const = 0;
+	virtual BaseEntity::Ptr parseVersionListInternal(const QJsonObject &obj) const = 0;
+	virtual QJsonObject serializeIndexInternal(const Index *ptr) const = 0;
+	virtual QJsonObject serializeVersionInternal(const Version *ptr) const = 0;
+	virtual QJsonObject serializeVersionListInternal(const VersionList *ptr) const = 0;
+};
+}
diff --git a/api/logic/meta/format/FormatV1.cpp b/api/logic/meta/format/FormatV1.cpp
new file mode 100644
index 00000000..23f57100
--- /dev/null
+++ b/api/logic/meta/format/FormatV1.cpp
@@ -0,0 +1,161 @@
+/* Copyright 2015-2017 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 "FormatV1.h"
+#include <minecraft/onesix/OneSixVersionFormat.h>
+
+#include "Json.h"
+
+#include "meta/Index.h"
+#include "meta/Version.h"
+#include "meta/VersionList.h"
+#include "Env.h"
+
+using namespace Json;
+
+namespace Meta
+{
+static VersionPtr parseCommonVersion(const QString &uid, const QJsonObject &obj)
+{
+	const QVector<QJsonObject> requiresRaw = obj.contains("requires") ? requireIsArrayOf<QJsonObject>(obj, "requires") : QVector<QJsonObject>();
+	QVector<Reference> requires;
+	requires.reserve(requiresRaw.size());
+	std::transform(requiresRaw.begin(), requiresRaw.end(), std::back_inserter(requires), [](const QJsonObject &rObj)
+	{
+		Reference ref(requireString(rObj, "uid"));
+		ref.setVersion(ensureString(rObj, "version", QString()));
+		return ref;
+	});
+
+	VersionPtr version = std::make_shared<Version>(uid, requireString(obj, "version"));
+	if (obj.value("time").isString())
+	{
+		version->setTime(QDateTime::fromString(requireString(obj, "time"), Qt::ISODate).toMSecsSinceEpoch() / 1000);
+	}
+	else
+	{
+		version->setTime(requireInteger(obj, "time"));
+	}
+	version->setType(ensureString(obj, "type", QString()));
+	version->setRequires(requires);
+	return version;
+}
+static void serializeCommonVersion(const Version *version, QJsonObject &obj)
+{
+	QJsonArray requires;
+	for (const Reference &ref : version->requires())
+	{
+		if (ref.version().isEmpty())
+		{
+			QJsonObject out;
+			out["uid"] = ref.uid();
+			requires.append(out);
+		}
+		else
+		{
+			QJsonObject out;
+			out["uid"] = ref.uid();
+			out["version"] = ref.version();
+			requires.append(out);
+		}
+	}
+
+	obj.insert("version", version->version());
+	obj.insert("type", version->type());
+	obj.insert("time", version->time().toString(Qt::ISODate));
+	obj.insert("requires", requires);
+}
+
+BaseEntity::Ptr FormatV1::parseIndexInternal(const QJsonObject &obj) const
+{
+	const QVector<QJsonObject> objects = requireIsArrayOf<QJsonObject>(obj, "index");
+	QVector<VersionListPtr> lists;
+	lists.reserve(objects.size());
+	std::transform(objects.begin(), objects.end(), std::back_inserter(lists), [](const QJsonObject &obj)
+	{
+		VersionListPtr list = std::make_shared<VersionList>(requireString(obj, "uid"));
+		list->setName(ensureString(obj, "name", QString()));
+		return list;
+	});
+	return std::make_shared<Index>(lists);
+}
+BaseEntity::Ptr FormatV1::parseVersionInternal(const QJsonObject &obj) const
+{
+	VersionPtr version = parseCommonVersion(requireString(obj, "uid"), obj);
+
+	version->setData(OneSixVersionFormat::versionFileFromJson(QJsonDocument(obj),
+										   QString("%1/%2.json").arg(version->uid(), version->version()),
+										   obj.contains("order")));
+	return version;
+}
+BaseEntity::Ptr FormatV1::parseVersionListInternal(const QJsonObject &obj) const
+{
+	const QString uid = requireString(obj, "uid");
+
+	const QVector<QJsonObject> versionsRaw = requireIsArrayOf<QJsonObject>(obj, "versions");
+	QVector<VersionPtr> versions;
+	versions.reserve(versionsRaw.size());
+	std::transform(versionsRaw.begin(), versionsRaw.end(), std::back_inserter(versions), [this, uid](const QJsonObject &vObj)
+	{ return parseCommonVersion(uid, vObj); });
+
+	VersionListPtr list = std::make_shared<VersionList>(uid);
+	list->setName(ensureString(obj, "name", QString()));
+	list->setVersions(versions);
+	return list;
+}
+
+QJsonObject FormatV1::serializeIndexInternal(const Index *ptr) const
+{
+	QJsonArray index;
+	for (const VersionListPtr &list : ptr->lists())
+	{
+		QJsonObject out;
+		out["uid"] = list->uid();
+		out["version"] = list->name();
+		index.append(out);
+	}
+	QJsonObject out;
+	out["formatVersion"] = 1;
+	out["index"] = index;
+	return out;
+}
+QJsonObject FormatV1::serializeVersionInternal(const Version *ptr) const
+{
+	QJsonObject obj = OneSixVersionFormat::versionFileToJson(ptr->data(), true).object();
+	serializeCommonVersion(ptr, obj);
+	obj.insert("formatVersion", 1);
+	obj.insert("uid", ptr->uid());
+	// TODO: the name should be looked up in the UI based on the uid
+	obj.insert("name", ENV.metadataIndex()->getListGuaranteed(ptr->uid())->name());
+
+	return obj;
+}
+QJsonObject FormatV1::serializeVersionListInternal(const VersionList *ptr) const
+{
+	QJsonArray versions;
+	for (const VersionPtr &version : ptr->versions())
+	{
+		QJsonObject obj;
+		serializeCommonVersion(version.get(), obj);
+		versions.append(obj);
+	}
+	QJsonObject out;
+	out["formatVersion"] = 10;
+	out["uid"] = ptr->uid();
+	out["name"] = ptr->name().isNull() ? QJsonValue() : ptr->name();
+	out["versions"] = versions;
+	return out;
+}
+}
diff --git a/api/logic/meta/format/FormatV1.h b/api/logic/meta/format/FormatV1.h
new file mode 100644
index 00000000..ab986083
--- /dev/null
+++ b/api/logic/meta/format/FormatV1.h
@@ -0,0 +1,33 @@
+/* Copyright 2015-2017 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.
+ */
+
+#pragma once
+
+#include "Format.h"
+
+namespace Meta
+{
+class FormatV1 : public Format
+{
+public:
+	BaseEntity::Ptr parseIndexInternal(const QJsonObject &obj) const override;
+	BaseEntity::Ptr parseVersionInternal(const QJsonObject &obj) const override;
+	BaseEntity::Ptr parseVersionListInternal(const QJsonObject &obj) const override;
+
+	QJsonObject serializeIndexInternal(const Index *ptr) const override;
+	QJsonObject serializeVersionInternal(const Version *ptr) const override;
+	QJsonObject serializeVersionListInternal(const VersionList *ptr) const override;
+};
+}