Reorganize logic code.

1 files changed, 330 insertions, 0 deletions

diff --git a/logic/minecraft/MinecraftVersionList.cpp b/logic/minecraft/MinecraftVersionList.cpp
new file mode 100644
index 00000000..cdf5fa77
--- /dev/null
+++ b/logic/minecraft/MinecraftVersionList.cpp
@@ -0,0 +1,330 @@
+/* Copyright 2013 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 "MinecraftVersionList.h"
+#include "MultiMC.h"
+#include "logic/net/URLConstants.h"
+#include <logic/MMCJson.h>
+
+#include <QtXml>
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QJsonValue>
+#include <QJsonParseError>
+
+#include <QtAlgorithms>
+
+#include <QtNetwork>
+
+inline QDateTime timeFromS3Time(QString str)
+{
+	return QDateTime::fromString(str, Qt::ISODate);
+}
+
+MinecraftVersionList::MinecraftVersionList(QObject *parent) : BaseVersionList(parent)
+{
+	loadBuiltinList();
+}
+
+Task *MinecraftVersionList::getLoadTask()
+{
+	return new MCVListLoadTask(this);
+}
+
+bool MinecraftVersionList::isLoaded()
+{
+	return m_loaded;
+}
+
+const BaseVersionPtr MinecraftVersionList::at(int i) const
+{
+	return m_vlist.at(i);
+}
+
+int MinecraftVersionList::count() const
+{
+	return m_vlist.count();
+}
+
+static bool cmpVersions(BaseVersionPtr first, BaseVersionPtr second)
+{
+	auto left = std::dynamic_pointer_cast<MinecraftVersion>(first);
+	auto right = std::dynamic_pointer_cast<MinecraftVersion>(second);
+	return left->timestamp > right->timestamp;
+}
+
+void MinecraftVersionList::sortInternal()
+{
+	qSort(m_vlist.begin(), m_vlist.end(), cmpVersions);
+}
+
+void MinecraftVersionList::loadBuiltinList()
+{
+	// grab the version list data from internal resources.
+	QResource versionList(":/versions/minecraft.json");
+	QFile filez(versionList.absoluteFilePath());
+	filez.open(QIODevice::ReadOnly);
+	auto data = filez.readAll();
+	
+	// parse the data as json
+	QJsonParseError jsonError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
+	QJsonObject root = jsonDoc.object();
+	
+	// parse all the versions
+	for (const auto version : MMCJson::ensureArray(root.value("versions")))
+	{
+		QJsonObject versionObj = version.toObject();
+		QString versionID = versionObj.value("id").toString("");
+		QString versionTimeStr = versionObj.value("releaseTime").toString("");
+		QString versionTypeStr = versionObj.value("type").toString("");
+		QSet<QString> traits;
+		if (versionObj.contains("+traits"))
+		{
+			for (auto traitVal : MMCJson::ensureArray(versionObj.value("+traits")))
+			{
+				traits.insert(MMCJson::ensureString(traitVal));
+			}
+		}
+		if (versionID.isEmpty() || versionTimeStr.isEmpty() || versionTypeStr.isEmpty())
+		{
+			// FIXME: log this somewhere
+			continue;
+		}
+		// Parse the timestamp.
+		QDateTime versionTime = timeFromS3Time(versionTimeStr);
+		if (!versionTime.isValid())
+		{
+			// FIXME: log this somewhere
+			continue;
+		}
+		// Get the download URL.
+		QString dlUrl = "http://" + URLConstants::AWS_DOWNLOAD_VERSIONS + versionID + "/";
+
+		// main class and applet class
+		QString mainClass = versionObj.value("type").toString("");
+		QString appletClass = versionObj.value("type").toString("");
+
+		// Now, we construct the version object and add it to the list.
+		std::shared_ptr<MinecraftVersion> mcVersion(new MinecraftVersion());
+		mcVersion->m_name = mcVersion->m_descriptor = versionID;
+		mcVersion->timestamp = versionTime.toMSecsSinceEpoch();
+		mcVersion->download_url = dlUrl;
+		mcVersion->is_builtin = true;
+		mcVersion->m_appletClass = appletClass;
+		mcVersion->m_mainClass = mainClass;
+		mcVersion->m_traits = traits;
+		m_vlist.append(mcVersion);
+	}
+}
+
+void MinecraftVersionList::sort()
+{
+	beginResetModel();
+	sortInternal();
+	endResetModel();
+}
+
+BaseVersionPtr MinecraftVersionList::getLatestStable() const
+{
+	for (int i = 0; i < m_vlist.length(); i++)
+	{
+		auto ver = std::dynamic_pointer_cast<MinecraftVersion>(m_vlist.at(i));
+		if (ver->is_latest && !ver->is_snapshot)
+		{
+			return m_vlist.at(i);
+		}
+	}
+	return BaseVersionPtr();
+}
+
+void MinecraftVersionList::updateListData(QList<BaseVersionPtr> versions)
+{
+	beginResetModel();
+	for (auto version : versions)
+	{
+		auto descr = version->descriptor();
+		for (auto builtin_v : m_vlist)
+		{
+			if (descr == builtin_v->descriptor())
+			{
+				goto SKIP_THIS_ONE;
+			}
+		}
+		m_vlist.append(version);
+	SKIP_THIS_ONE:
+	{
+	}
+	}
+	m_loaded = true;
+	sortInternal();
+	endResetModel();
+}
+
+inline QDomElement getDomElementByTagName(QDomElement parent, QString tagname)
+{
+	QDomNodeList elementList = parent.elementsByTagName(tagname);
+	if (elementList.count())
+		return elementList.at(0).toElement();
+	else
+		return QDomElement();
+}
+
+MCVListLoadTask::MCVListLoadTask(MinecraftVersionList *vlist)
+{
+	m_list = vlist;
+	m_currentStable = NULL;
+	vlistReply = nullptr;
+}
+
+MCVListLoadTask::~MCVListLoadTask()
+{
+}
+
+void MCVListLoadTask::executeTask()
+{
+	setStatus(tr("Loading instance version list..."));
+	auto worker = MMC->qnam();
+	vlistReply = worker->get(QNetworkRequest(
+		QUrl("http://" + URLConstants::AWS_DOWNLOAD_VERSIONS + "versions.json")));
+	connect(vlistReply, SIGNAL(finished()), this, SLOT(list_downloaded()));
+}
+
+void MCVListLoadTask::list_downloaded()
+{
+	if (vlistReply->error() != QNetworkReply::NoError)
+	{
+		vlistReply->deleteLater();
+		emitFailed("Failed to load Minecraft main version list" + vlistReply->errorString());
+		return;
+	}
+
+	auto foo = vlistReply->readAll();
+	QJsonParseError jsonError;
+	QLOG_INFO() << foo;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(foo, &jsonError);
+	vlistReply->deleteLater();
+
+	if (jsonError.error != QJsonParseError::NoError)
+	{
+		emitFailed("Error parsing version list JSON:" + jsonError.errorString());
+		return;
+	}
+
+	if (!jsonDoc.isObject())
+	{
+		emitFailed("Error parsing version list JSON: jsonDoc is not an object");
+		return;
+	}
+
+	QJsonObject root = jsonDoc.object();
+
+	QString latestReleaseID = "INVALID";
+	QString latestSnapshotID = "INVALID";
+	try
+	{
+		QJsonObject latest = MMCJson::ensureObject(root.value("latest"));
+		latestReleaseID = MMCJson::ensureString(latest.value("release"));
+		latestSnapshotID = MMCJson::ensureString(latest.value("snapshot"));
+	}
+	catch (MMCError &err)
+	{
+		QLOG_ERROR()
+			<< tr("Error parsing version list JSON: couldn't determine latest versions");
+	}
+
+	// Now, get the array of versions.
+	if (!root.value("versions").isArray())
+	{
+		emitFailed(
+			"Error parsing version list JSON: version list object is missing 'versions' array");
+		return;
+	}
+	QJsonArray versions = root.value("versions").toArray();
+
+	QList<BaseVersionPtr> tempList;
+	for (auto version : versions)
+	{
+		bool is_snapshot = false;
+		bool is_latest = false;
+
+		// Load the version info.
+		if (!version.isObject())
+		{
+			// FIXME: log this somewhere
+			continue;
+		}
+		QJsonObject versionObj = version.toObject();
+		QString versionID = versionObj.value("id").toString("");
+		QString versionTimeStr = versionObj.value("releaseTime").toString("");
+		QString versionTypeStr = versionObj.value("type").toString("");
+		if (versionID.isEmpty() || versionTimeStr.isEmpty() || versionTypeStr.isEmpty())
+		{
+			// FIXME: log this somewhere
+			continue;
+		}
+
+		// Parse the timestamp.
+		QDateTime versionTime = timeFromS3Time(versionTimeStr);
+		if (!versionTime.isValid())
+		{
+			// FIXME: log this somewhere
+			continue;
+		}
+		// OneSix or Legacy. use filter to determine type
+		if (versionTypeStr == "release")
+		{
+			is_latest = (versionID == latestReleaseID);
+			is_snapshot = false;
+		}
+		else if (versionTypeStr == "snapshot") // It's a snapshot... yay
+		{
+			is_latest = (versionID == latestSnapshotID);
+			is_snapshot = true;
+		}
+		else if (versionTypeStr == "old_alpha")
+		{
+			is_latest = false;
+			is_snapshot = false;
+		}
+		else if (versionTypeStr == "old_beta")
+		{
+			is_latest = false;
+			is_snapshot = false;
+		}
+		else
+		{
+			// FIXME: log this somewhere
+			continue;
+		}
+		// Get the download URL.
+		QString dlUrl = "http://" + URLConstants::AWS_DOWNLOAD_VERSIONS + versionID + "/";
+
+		// Now, we construct the version object and add it to the list.
+		std::shared_ptr<MinecraftVersion> mcVersion(new MinecraftVersion());
+		mcVersion->m_name = mcVersion->m_descriptor = versionID;
+		mcVersion->timestamp = versionTime.toMSecsSinceEpoch();
+		mcVersion->download_url = dlUrl;
+		mcVersion->is_latest = is_latest;
+		mcVersion->is_snapshot = is_snapshot;
+		tempList.append(mcVersion);
+	}
+	m_list->updateListData(tempList);
+
+	emitSucceeded();
+	return;
+}