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+/* Copyright 2013-2014 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 "tasks/Task.h"
+#include "net/NetJob.h"
+#include "GoUpdate.h"
+
+#include "multimc_logic_export.h"
+
+namespace GoUpdate
+{
+/*!
+ * The DownloadTask is a task that takes a given version ID and repository URL,
+ * downloads that version's files from the repository, and prepares to install them.
+ */
+class MULTIMC_LOGIC_EXPORT DownloadTask : public Task
+{
+ Q_OBJECT
+
+public:
+ /**
+ * Create a download task
+ *
+ * target is a template - XXXXXX at the end will be replaced with a random generated string, ensuring uniqueness
+ */
+ explicit DownloadTask(Status status, QString target, QObject* parent = 0);
+
+ /// Get the directory that will contain the update files.
+ QString updateFilesDir();
+
+ /// Get the list of operations that should be done
+ OperationList operations();
+
+ /// set updater download behavior
+ void setUseLocalUpdater(bool useLocal);
+
+protected:
+ //! Entry point for tasks.
+ virtual void executeTask() override;
+
+ /*!
+ * Downloads the version info files from the repository.
+ * The files for both the current build, and the build that we're updating to need to be downloaded.
+ * If the current version's info file can't be found, MultiMC will not delete files that
+ * were removed between versions. It will still replace files that have changed, however.
+ * Note that although the repository URL for the current version is not given to the update task,
+ * the task will attempt to look it up in the UpdateChecker's channel list.
+ * If an error occurs here, the function will call emitFailed and return false.
+ */
+ void loadVersionInfo();
+
+ NetJobPtr m_vinfoNetJob;
+ ByteArrayDownloadPtr m_currentVersionFileListDownload;
+ ByteArrayDownloadPtr m_newVersionFileListDownload;
+
+ NetJobPtr m_filesNetJob;
+
+ Status m_status;
+
+ OperationList m_operations;
+
+ /*!
+ * Temporary directory to store update files in.
+ * This will be set to not auto delete. Task will fail if this fails to be created.
+ */
+ QTemporaryDir m_updateFilesDir;
+
+protected slots:
+ /*!
+ * This function is called when version information is finished downloading
+ * and at least the new file list download succeeded
+ */
+ void processDownloadedVersionInfo();
+ void vinfoDownloadFailed();
+
+ void fileDownloadFinished();
+ void fileDownloadFailed(QString reason);
+ void fileDownloadProgressChanged(qint64 current, qint64 total);
+};
+
+} \ No newline at end of file