Massive re-organization.

16 files changed, 1274 insertions, 0 deletions

diff --git a/libmultimc/include/appsettings.h b/libmultimc/include/appsettings.h
new file mode 100644
index 00000000..66ffb7b5
--- /dev/null
+++ b/libmultimc/include/appsettings.h
@@ -0,0 +1,32 @@
+/* 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.
+ */
+
+#ifndef APPSETTINGS_H
+#define APPSETTINGS_H
+
+#include <QObject>
+
+#include <basicsettingsobject.h>
+
+#include "libmmc_config.h"
+
+class LIBMULTIMC_EXPORT AppSettings : public BasicSettingsObject
+{
+	Q_OBJECT
+public:
+	explicit AppSettings(QObject *parent = 0);
+};
+
+#endif // APPSETTINGS_H
diff --git a/libmultimc/include/gameupdatetask.h b/libmultimc/include/gameupdatetask.h
new file mode 100644
index 00000000..eabfbd1f
--- /dev/null
+++ b/libmultimc/include/gameupdatetask.h
@@ -0,0 +1,52 @@
+/* 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.
+ */
+
+#ifndef GAMEUPDATETASK_H
+#define GAMEUPDATETASK_H
+
+#include <QObject>
+
+#include "loginresponse.h"
+
+#include "libmmc_config.h"
+
+/*!
+ * \brief The game update task is the task that handles downloading instances.
+ * Each instance type has its own class inheriting from this base game update task.
+ */
+class LIBMULTIMC_EXPORT GameUpdateTask : public QObject
+{
+	Q_OBJECT
+public:
+	explicit GameUpdateTask(const LoginResponse &response, QObject *parent = 0);
+	
+signals:
+	/*!
+	 * \brief Signal emitted when the game update is complete.
+	 * \param response The login response received from login task.
+	 */
+	void gameUpdateComplete(const LoginResponse &response);
+	
+	/*!
+	 * \brief Signal emitted if the game update fails.
+	 * \param errorMsg An error message to be displayed to the user.
+	 */
+	void gameUpdateFailed(const QString &errorMsg);
+	
+private:
+	LoginResponse m_response;
+};
+
+#endif // GAMEUPDATETASK_H
diff --git a/libmultimc/include/instance.h b/libmultimc/include/instance.h
new file mode 100644
index 00000000..7de61343
--- /dev/null
+++ b/libmultimc/include/instance.h
@@ -0,0 +1,297 @@
+/* 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.
+ */
+
+#ifndef INSTANCE_H
+#define INSTANCE_H
+
+#include <QObject>
+#include <QDateTime>
+
+#include <settingsobject.h>
+
+#include "inifile.h"
+
+#include "libmmc_config.h"
+
+class InstanceList;
+
+/*!
+ * \brief Base class for instances.
+ * This class implements many functions that are common between instances and 
+ * provides a standard interface for all instances.
+ * 
+ * To create a new instance type, create a new class inheriting from this class
+ * and implement the pure virtual functions.
+ */
+class LIBMULTIMC_EXPORT Instance : public QObject
+{
+	Q_OBJECT
+public:
+	explicit Instance(const QString &rootDir, QObject *parent = 0);
+	
+	// Please, for the sake of my (and everyone else's) sanity, at least keep this shit
+	// *somewhat* organized. Also, documentation is semi-important here. Please don't
+	// leave undocumented stuff behind.
+	
+	
+	//////// STUFF ////////
+	
+	/*!
+	 * \brief Get the instance's ID. 
+	 *        This is a unique identifier string that is, by default, set to the
+	 *        instance's folder name. It's not always the instance's folder name, 
+	 *        however, as any class deriving from Instance can override the id() 
+	 *        method and change how the ID is determined. The instance's ID 
+	 *        should always remain constant. Undefined behavior results if an 
+	 *        already loaded instance's ID changes.
+	 * 
+	 * \return The instance's ID.
+	 */
+	virtual QString id() const;
+	
+	/*!
+	 * \brief Gets the path to the instance's root directory.
+	 * \return  The path to the instance's root directory.
+	 */
+	virtual QString rootDir() const;
+	
+	/*!
+	 * \brief Gets the instance list that this instance is a part of. 
+	 *        Returns NULL if this instance is not in a list 
+	 *        (the parent is not an InstanceList).
+	 * \return A pointer to the InstanceList containing this instance. 
+	 */
+	virtual InstanceList *instList() const;
+	
+	
+	//////// INSTANCE INFO ////////
+	
+	//// General Info ////
+	
+	/*!
+	 * \brief Gets this instance's name.
+	 *        This is the name that will be displayed to the user.
+	 * \return The instance's name.
+	 * \sa setName
+	 */
+	virtual QString name() { return settings().get("name").toString(); }
+	
+	/*!
+	 * \brief Sets the instance's name
+	 * \param val The instance's new name.
+	 */
+	virtual void setName(QString val) { settings().set("name", val); }
+	
+	/*!
+	 * \brief Gets the instance's icon key.
+	 * \return The instance's icon key.
+	 * \sa setIconKey()
+	 */
+	virtual QString iconKey() const { return settings().get("iconKey").toString(); }
+	
+	/*!
+	 * \brief Sets the instance's icon key.
+	 * \param val The new icon key.
+	 */
+	virtual void setIconKey(QString val) { settings().set("iconKey", val); }
+	
+	
+	/*!
+	 * \brief Gets the instance's notes.
+	 * \return The instances notes.
+	 */
+	virtual QString notes() const { return settings().get("notes").toString(); }
+	
+	/*!
+	 * \brief Sets the instance's notes.
+	 * \param val The instance's new notes.
+	 */
+	virtual void setNotes(QString val) { settings().set("notes", val); }
+	
+	
+	/*!
+	 * \brief Checks if	the instance's minecraft.jar needs to be rebuilt.
+	 *        If this is true, the instance's mods will be reinstalled to its
+	 *        minecraft.jar file. This value is automatically set to true when
+	 *        the jar mod list changes.
+	 * \return Whether or not the instance's jar file should be rebuilt.
+	 */
+	virtual bool shouldRebuild() const { return settings().get("NeedsRebuild").toBool(); }
+	
+	/*!
+	 * \brief Sets whether or not the instance's minecraft.jar needs to be rebuilt.
+	 * \param val Whether the instance's minecraft needs to be rebuilt or not.
+	 */
+	virtual void setShouldRebuild(bool val) { settings().set("NeedsRebuild", val); }
+	
+	
+	//// Version Stuff ////
+	
+	/*!
+	 * \brief Sets the instance's current version.
+	 *        This value represents the instance's current version. If this value
+	 *        is different from intendedVersion(), the instance should be updated.
+	 *        This value is updated by the updateCurrentVersion() function.
+	 * \return A string representing the instance's current version.
+	 */
+	virtual QString currentVersion() { return settings().get("JarVersion").toString(); }
+	
+	/*!
+	 * \brief Sets the instance's current version.
+	 *        This is used to keep track of the instance's current version. Don't
+	 *        mess with this unless you know what you're doing.
+	 * \param val The new value.
+	 */
+	virtual void setCurrentVersion(QString val) { settings().set("JarVersion", val); }
+	
+	
+	/*!
+	 * \brief Gets the version of LWJGL that this instance should use.
+	 *        If no LWJGL version is specified in the instance's config file, 
+	 *        defaults to "Mojang"
+	 * \return The instance's LWJGL version.
+	 */
+	virtual QString lwjglVersion() { return settings().get("LwjglVersion").toString(); }
+	
+	/*!
+	 * \brief Sets the version of LWJGL that this instance should use.
+	 * \param val The LWJGL version to use
+	 */
+	virtual void setLWJGLVersion(QString val) { settings().set("LwjglVersion", val); }
+	
+	
+	/*!
+	 * \brief Gets the version that this instance should try to update to.
+	 *        If this value differs from currentVersion(), the instance will
+	 *        download the intended version when it launches.
+	 * \return The instance's intended version.
+	 */
+	virtual QString intendedVersion() { return settings().get("IntendedJarVersion").toString(); }
+	
+	/*!
+	 * \brief Sets the version that this instance should try to update to.
+	 * \param val The instance's new intended version.
+	 */
+	virtual void setIntendedVersion(QString val) { settings().set("IntendedJarVersion", val); }
+	
+	
+	
+	//// Timestamps ////
+	
+	/*!
+	 * \brief Gets the time that the instance was last launched.
+	 *        Measured in milliseconds since epoch. QDateTime::currentMSecsSinceEpoch()
+	 * \return The time that the instance was last launched.
+	 */
+	virtual qint64 lastLaunch() { return settings().get("lastLaunchTime").value<qint64>(); }
+	
+	/*!
+	 * \brief Sets the time that the instance was last launched.
+	 * \param val The time to set. Defaults to QDateTime::currentMSecsSinceEpoch()
+	 */
+	virtual void setLastLaunch(qint64 val = QDateTime::currentMSecsSinceEpoch()) 
+	{ settings().set("lastLaunchTime", val); }
+	
+	
+	////// Directories //////
+	//! Gets the path to the instance's minecraft folder.
+	QString minecraftDir() const;
+	
+	/*!
+	 * \brief Gets the path to the instance's instance mods folder.
+	 * This is the folder where the jar mods are kept.
+	 */
+	QString instModsDir() const;
+	
+	//! Gets the path to the instance's bin folder.
+	QString binDir() const;
+	
+	//! Gets the path to the instance's saves folder.
+	QString savesDir() const;
+	
+	//! Gets the path to the instance's mods folder. (.minecraft/mods)
+	QString mlModsDir() const;
+	
+	//! Gets the path to the instance's coremods folder.
+	QString coreModsDir() const;
+	
+	//! Gets the path to the instance's resources folder.
+	QString resourceDir() const;
+	
+	//! Gets the path to the instance's screenshots folder.
+	QString screenshotsDir() const;
+	
+	//! Gets the path to the instance's texture packs folder.
+	QString texturePacksDir() const;
+	
+	
+	////// Files //////
+	//! Gets the path to the instance's minecraft.jar
+	QString mcJar() const;
+	
+	//! Gets the path to the instance's mcbackup.jar.
+	QString mcBackup() const;
+	
+	//! Gets the path to the instance's config file.
+	QString configFile() const;
+	
+	//! Gets the path to the instance's modlist file.
+	QString modListFile() const;
+	
+	
+	//////// OTHER FUNCTIONS ////////
+	
+	//// Version System ////
+	
+	/*!
+	 * \brief Checks whether or not the currentVersion of the instance needs to be updated. 
+	 *        If this returns true, updateCurrentVersion is called. In the 
+	 *        standard instance, this is determined by checking a timestamp 
+	 *        stored in the instance config file against the last modified time of Minecraft.jar.
+	 * \return True if updateCurrentVersion() should be called.
+	 */
+	virtual bool shouldUpdateCurrentVersion() = 0;
+	
+	/*!
+	 * \brief Updates the current version. 
+	 *        This function should first set the current version timestamp 
+	 *        (setCurrentVersionTimestamp()) to the current time. Next, if 
+	 *        keepCurrent is false, this function should check what the 
+	 *        instance's current version is and call setCurrentVersion() to 
+	 *        update it. This function will automatically be called when the 
+	 *        instance is loaded if shouldUpdateCurrentVersion returns true.
+	 * \param keepCurrent If true, only the version timestamp will be updated.
+	 */
+	virtual void updateCurrentVersion(bool keepCurrent = false) = 0; 
+	
+	
+	//// Settings System ////
+	
+	/*!
+	 * \brief Gets this instance's settings object.
+	 * This settings object stores instance-specific settings.
+	 * \return A pointer to this instance's settings object.
+	 */
+	virtual SettingsObject &settings() const;
+	
+private:
+	QString m_rootDir;
+	SettingsObject *m_settings;
+};
+
+// pointer for lazy people
+typedef QSharedPointer<Instance> InstancePtr;
+
+#endif // INSTANCE_H
diff --git a/libmultimc/include/instancelist.h b/libmultimc/include/instancelist.h
new file mode 100644
index 00000000..d4e7556a
--- /dev/null
+++ b/libmultimc/include/instancelist.h
@@ -0,0 +1,59 @@
+/* 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.
+ */
+
+#ifndef INSTANCELIST_H
+#define INSTANCELIST_H
+
+#include <QObject>
+
+#include <QSharedPointer>
+
+#include "siglist.h"
+
+#include "libmmc_config.h"
+
+class Instance;
+
+class LIBMULTIMC_EXPORT InstanceList : public QObject, public SigList< QSharedPointer<Instance> >
+{
+	Q_OBJECT
+public:
+	explicit InstanceList(const QString &instDir, QObject *parent = 0);
+	
+	/*!
+	 * \brief Error codes returned by functions in the InstanceList class.
+	 * NoError Indicates that no error occurred.
+	 * UnknownError indicates that an unspecified error occurred.
+	 */
+	enum InstListError
+	{
+		NoError = 0,
+		UnknownError
+	};
+	
+	QString instDir() const { return m_instDir; }
+	
+	/*!
+	 * \brief Loads the instance list.
+	 */
+	InstListError loadList();
+	
+	DEFINE_SIGLIST_SIGNALS(QSharedPointer<Instance>);
+	SETUP_SIGLIST_SIGNALS(QSharedPointer<Instance>);
+protected:
+	QString m_instDir;
+};
+
+#endif // INSTANCELIST_H
diff --git a/libmultimc/include/instanceloader.h b/libmultimc/include/instanceloader.h
new file mode 100644
index 00000000..3326d7d0
--- /dev/null
+++ b/libmultimc/include/instanceloader.h
@@ -0,0 +1,140 @@
+/* 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.
+ */
+
+#ifndef INSTANCELOADER_H
+#define INSTANCELOADER_H
+
+#include <QObject>
+#include <QMap>
+#include <QList>
+
+#include "libmmc_config.h"
+
+class InstanceTypeInterface;
+class Instance;
+
+typedef QList<const InstanceTypeInterface *> InstTypeList;
+
+/*!
+ * \brief The InstanceLoader is a singleton that manages all of the instance types and handles loading and creating instances.
+ * Instance types are registered with the instance loader through its registerInstType() function. 
+ * Creating instances is done through the InstanceLoader's createInstance() function. This function takes 
+ */
+class LIBMULTIMC_EXPORT InstanceLoader : public QObject
+{
+	Q_OBJECT
+public:
+	/*!
+	 * \brief Gets a reference to the instance loader.
+	 */
+	static InstanceLoader &get() { return loader; }
+	
+	/*!
+	 * \brief Error codes returned by functions in the InstanceLoader and InstanceType classes.
+	 *
+	 * - NoError indicates that no error occurred.
+	 * - OtherError indicates that an unspecified error occurred.
+	 * - TypeIDExists is returned	by registerInstanceType() if the ID of the type being registered already exists.
+	 * - TypeNotRegistered is returned by createInstance() and loadInstance() when the given type is not registered.
+	 * - InstExists is returned by createInstance() if the given instance directory is already an instance.
+	 * - NotAnInstance is returned by loadInstance() if the given instance directory is not a valid instance.
+	 * - WrongInstType is returned by loadInstance() if the given instance directory's type doesn't match the given type.
+	 * - CantCreateDir is returned by createInstance( if the given instance directory can't be created.)
+	 */
+	enum InstTypeError
+	{
+		NoError = 0,
+		OtherError,
+		
+		TypeIDExists,
+		
+		TypeNotRegistered,
+		InstExists,
+		NotAnInstance,
+		WrongInstType,
+		CantCreateDir
+	};
+	
+	/*!
+	 * \brief Registers the given InstanceType with the instance loader.
+	 *
+	 * \param type The InstanceType to register.
+	 * \return An InstTypeError error code.
+	 * - TypeIDExists if the given type's is already registered to another instance type.
+	 */
+	InstTypeError registerInstanceType(InstanceTypeInterface *type);
+	
+	/*!
+	 * \brief Creates an instance with the given type and stores it in inst.
+	 *
+	 * \param inst Pointer to store the created instance in.
+	 * \param type The type of instance to create.
+	 * \param instDir The instance's directory.
+	 * \return An InstTypeError error code.
+	 * - TypeNotRegistered if the given type is not registered with the InstanceLoader.
+	 * - InstExists if the given instance directory is already an instance.
+	 * - CantCreateDir if the given instance directory cannot be created.
+	 */
+	InstTypeError createInstance(Instance *&inst, const InstanceTypeInterface *type, const QString &instDir);
+	
+	/*!
+	 * \brief Loads an instance from the given directory.
+	 *
+	 * \param inst Pointer to store the loaded instance in.
+	 * \param type The type of instance to load.
+	 * \param instDir The instance's directory.
+	 * \return An InstTypeError error code.
+	 * - TypeNotRegistered if the given type is not registered with the InstanceLoader.
+	 * - NotAnInstance if the given instance directory isn't a valid instance.
+	 * - WrongInstType if the given instance directory's type isn't the same as the given type.
+	 */
+	InstTypeError loadInstance(Instance *&inst, const InstanceTypeInterface *type, const QString &instDir);
+	
+	/*!
+	 * \brief Loads an instance from the given directory.
+	 * Checks the instance's INI file to figure out what the instance's type is first.
+	 * \param inst Pointer to store the loaded instance in.
+	 * \param instDir The instance's directory.
+	 * \return An InstTypeError error code.
+	 * - TypeNotRegistered if the instance's type is not registered with the InstanceLoader.
+	 * - NotAnInstance if the given instance directory isn't a valid instance.
+	 */
+	InstTypeError loadInstance(Instance *&inst, const QString &instDir);
+	
+	/*!
+	 * \brief Finds an instance type with the given ID.
+	 * If one cannot be found, returns NULL.
+	 *
+	 * \param id The ID of the type to find.
+	 * \return The type with the given ID. NULL if none were found.
+	 */
+	const InstanceTypeInterface *findType(const QString &id);
+	
+	/*!
+	 * \brief Gets a list of the registered instance types.
+	 *
+	 * \return A list of instance types.
+	 */
+	InstTypeList typeList();
+	
+private:
+	InstanceLoader();
+	
+	QMap<QString, InstanceTypeInterface *> m_typeMap;
+	
+	static InstanceLoader loader;
+};
+
+#endif // INSTANCELOADER_H
diff --git a/libmultimc/include/instancetypeinterface.h b/libmultimc/include/instancetypeinterface.h
new file mode 100644
index 00000000..30a12d99
--- /dev/null
+++ b/libmultimc/include/instancetypeinterface.h
@@ -0,0 +1,86 @@
+/* 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.
+ */
+
+#ifndef INSTANCETYPE_H
+#define INSTANCETYPE_H
+
+#include <QObject>
+
+#include "instanceloader.h"
+
+//! The InstanceTypeInterface's interface ID.
+#define InstanceTypeInterface_IID "net.forkk.MultiMC.InstanceTypeInterface/0.1"
+
+/*!
+ * \brief The InstanceType class is an interface for all instance types.
+ * InstanceTypes are usually provided by plugins.
+ * It handles loading and creating instances of a certain type. There should be 
+ * one of these for each type of instance and they should be registered with the 
+ * InstanceLoader.
+ * To create an instance, the InstanceLoader calls the type's createInstance() 
+ * function. Loading is done through the loadInstance() function.
+ */
+class InstanceTypeInterface
+{
+public:
+	friend class InstanceLoader;
+	
+	/*!
+	 * \brief Gets the ID for this instance type. 
+	 *        The type ID should be unique as it is used to identify the type 
+	 *        of instances when they are loaded.
+	 *        Changing this value at runtime results in undefined behavior.
+	 * \return This instance type's ID string. 
+	 */
+	virtual QString typeID() const = 0;
+	
+	/*!
+	 * \brief Gets the name of this instance type as it is displayed to the user.
+	 * \return The instance type's display name.
+	 */
+	virtual QString displayName() const = 0;
+	
+	/*!
+	 * \brief Gets a longer, more detailed description of this instance type.
+	 * \return The instance type's description.
+	 */
+	virtual QString description() const	= 0;
+	
+protected:
+	/*!
+	 * \brief Creates an instance and stores it in inst.
+	 * \param inst Pointer to store the created instance in.
+	 * \param instDir The instance's directory.
+	 * \return An InstTypeError error code.
+	 *         TypeNotRegistered if the given type is not registered with the InstanceLoader.
+	 *         InstExists if the given instance directory is already an instance.
+	 */
+	virtual InstanceLoader::InstTypeError createInstance(Instance *&inst, const QString &instDir) const = 0;
+	
+	/*!
+	 * \brief Loads an instance from the given directory.
+	 * \param inst Pointer to store the loaded instance in.
+	 * \param instDir The instance's directory.
+	 * \return An InstTypeError error code.
+	 *         TypeNotRegistered if the given type is not registered with the InstanceLoader.
+	 *         NotAnInstance if the given instance directory isn't a valid instance.
+	 *         WrongInstType if the given instance directory's type isn't an instance of this type.
+	 */
+	virtual InstanceLoader::InstTypeError loadInstance(Instance *&inst, const QString &instDir) const = 0;
+};
+
+Q_DECLARE_INTERFACE(InstanceTypeInterface, InstanceTypeInterface_IID)
+
+#endif // INSTANCETYPE_H
diff --git a/libmultimc/include/instversion.h b/libmultimc/include/instversion.h
new file mode 100644
index 00000000..3c6b7ac9
--- /dev/null
+++ b/libmultimc/include/instversion.h
@@ -0,0 +1,53 @@
+/* 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.
+ */
+
+#ifndef INSTVERSION_H
+#define INSTVERSION_H
+
+#include <QObject>
+
+#include "libmmc_config.h"
+
+class InstVersionList;
+
+class LIBMULTIMC_EXPORT InstVersion : public QObject
+{
+	Q_OBJECT
+public:
+	// Constructs a new InstVersion with the given parent. The parent *must*
+	// be the InstVersionList that contains this InstVersion. The InstVersion
+	// should be added to the list immediately after being created as any calls
+	// to id() will likely fail unless the InstVersion is in a list.
+	explicit InstVersion(InstVersionList *parent = 0);
+	
+	// Returns this InstVersion's ID. This is usually just the InstVersion's index
+	// within its InstVersionList, but not always.
+	// If this InstVersion is not in an InstVersionList, returns -1.
+	virtual int id() const = 0;
+	
+	// Returns this InstVersion's name. This is displayed to the user in the GUI
+	// and is usually just the version number ("1.4.7"), for example.
+	virtual QString name() const = 0;
+	
+	// Returns this InstVersion's name. This is usually displayed to the user 
+	// in the GUI and specifies what kind of version this is. For example: it 
+	// could be "Snapshot", "Latest Version", "MCNostalgia", etc.
+	virtual QString type() const = 0;
+	
+	// Returns the version list that this InstVersion is a part of.
+	virtual InstVersionList *versionList() const;
+};
+
+#endif // INSTVERSION_H
diff --git a/libmultimc/include/instversionlist.h b/libmultimc/include/instversionlist.h
new file mode 100644
index 00000000..d64a286f
--- /dev/null
+++ b/libmultimc/include/instversionlist.h
@@ -0,0 +1,45 @@
+/* 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.
+ */
+
+#ifndef INSTVERSIONLIST_H
+#define INSTVERSIONLIST_H
+
+#include <QObject>
+
+#include "libmmc_config.h"
+
+class InstVersion;
+
+// Class that each instance type's version list derives from. Version lists are 
+// the lists that keep track of the available game versions for that instance. 
+// This list will not be loaded on startup. It will be loaded when the list's 
+// load function is called.
+class LIBMULTIMC_EXPORT InstVersionList : public QObject
+{
+	Q_OBJECT
+public:
+	explicit InstVersionList();
+	
+	// Reloads the version list.
+	virtual void loadVersionList() = 0;
+	
+	// Gets the version at the given index.
+	virtual const InstVersion *at(int i) const = 0;
+	
+	// Returns the number of versions in the list.
+	virtual int count() const = 0;
+};
+
+#endif // INSTVERSIONLIST_H
diff --git a/libmultimc/include/libmmc_config.h b/libmultimc/include/libmmc_config.h
new file mode 100644
index 00000000..0ff2154a
--- /dev/null
+++ b/libmultimc/include/libmmc_config.h
@@ -0,0 +1,27 @@
+/* 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.
+ */
+
+//#ifndef LIBINSTANCE_CONFIG_H
+//#define LIBINSTANCE_CONFIG_H
+
+#include <QtCore/QtGlobal>
+
+#ifdef LIBMULTIMC_LIBRARY
+#  define LIBMULTIMC_EXPORT Q_DECL_EXPORT
+#else
+#  define LIBMULTIMC_EXPORT Q_DECL_IMPORT
+#endif
+
+//#endif // LIBINSTANCE_CONFIG_H
diff --git a/libmultimc/include/loginresponse.h b/libmultimc/include/loginresponse.h
new file mode 100644
index 00000000..0b06a972
--- /dev/null
+++ b/libmultimc/include/loginresponse.h
@@ -0,0 +1,96 @@
+/* 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.
+ */
+
+#ifndef LOGINRESPONSE_H
+#define LOGINRESPONSE_H
+
+#include <QObject>
+
+#include "libmmc_config.h"
+
+/*!
+ * \brief The LoginResponse class represents a response received from Minecraft's login servers.
+ */
+class LIBMULTIMC_EXPORT LoginResponse : public QObject
+{
+	Q_OBJECT
+public:
+	/*!
+	 * \brief Creates a new instance of the LoginResponse class.
+	 * \param username The user's username.
+	 * \param sessionID The user's session ID.
+	 * \param latestVersion The latest version of Minecraft.
+	 * \param parent The parent object.
+	 */
+	explicit LoginResponse(const QString &username, const QString &sessionID, 
+						   qint64 latestVersion, QObject *parent = 0);
+	LoginResponse();
+	LoginResponse(const LoginResponse& other);
+	
+	/*!
+	 * \brief Gets the username.
+	 * This one should go without saying.
+	 * \return The username.
+	 * \sa setUsername()
+	 */
+	QString username() const;
+	
+	/*!
+	 * \brief setUsername Sets the username.
+	 * \param username The new username.
+	 * \sa username()
+	 */
+	void setUsername(const QString& username);
+	
+	
+	/*!
+	 * \brief Gets the session ID.
+	 * \return The session ID.
+	 * \sa setSessionID()
+	 */
+	QString sessionID() const;
+	
+	/*!
+	 * \brief Sets the session ID.
+	 * \param sessionID The new session ID.
+	 * \sa sessionID()
+	 */
+	void setSessionID(const QString& sessionID);
+	
+	
+	/*!
+	 * \brief Gets the latest version.
+	 * This is a value returned by the login servers when a user logs in.
+	 * \return The latest version.
+	 * \sa setLatestVersion()
+	 */
+	qint64 latestVersion() const;
+	
+	/*!
+	 * \brief Sets the latest version.
+	 * \param v The new latest version.
+	 * \sa latestVersion()
+	 */
+	void setLatestVersion(qint64 v);
+	
+private:
+	QString m_username;
+	QString m_sessionID;
+	qint64 m_latestVersion;
+};
+
+Q_DECLARE_METATYPE(LoginResponse)
+
+#endif // LOGINRESPONSE_H
diff --git a/libmultimc/include/logintask.h b/libmultimc/include/logintask.h
new file mode 100644
index 00000000..c1efb223
--- /dev/null
+++ b/libmultimc/include/logintask.h
@@ -0,0 +1,50 @@
+/* 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.
+ */
+
+#ifndef LOGINTASK_H
+#define LOGINTASK_H
+
+#include "task.h"
+
+#include "userinfo.h"
+#include "loginresponse.h"
+
+#include "libmmc_config.h"
+
+//class QNetworkAccessManager;
+class QNetworkReply;
+
+class LIBMULTIMC_EXPORT LoginTask : public Task
+{
+	Q_OBJECT
+public:
+	explicit LoginTask(const UserInfo& uInfo, QObject *parent = 0);
+	
+public slots:
+	void processNetReply(QNetworkReply* reply);
+	
+signals:
+	void loginComplete(LoginResponse loginResponse);
+	void loginFailed(const QString& errorMsg);
+	
+protected:
+	void executeTask();
+	
+	QNetworkReply* netReply;
+	
+	UserInfo uInfo;
+};
+
+#endif // LOGINTASK_H
diff --git a/libmultimc/include/minecraftprocess.h b/libmultimc/include/minecraftprocess.h
new file mode 100644
index 00000000..8986f7ad
--- /dev/null
+++ b/libmultimc/include/minecraftprocess.h
@@ -0,0 +1,97 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
+ *
+ * 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.
+ */
+#ifndef MINECRAFTPROCESS_H
+#define MINECRAFTPROCESS_H
+
+#include <QProcess>
+
+#include "instance.h"
+
+#include "libmmc_config.h"
+
+/**
+ * @file data/minecraftprocess.h
+ * @brief The MinecraftProcess class
+ */
+class LIBMULTIMC_EXPORT MinecraftProcess : public QProcess
+{
+    Q_OBJECT
+public:
+    /**
+     * @brief MinecraftProcess constructor
+     * @param inst the Instance pointer to launch
+     * @param user the minecraft username
+     * @param session the minecraft session id
+     * @param console the instance console window
+     */
+    MinecraftProcess(InstancePtr inst, QString user, QString session);
+
+    /**
+     * @brief launch minecraft
+     */
+    void launch();
+
+    /**
+     * @brief extract the instance icon
+     * @param inst the instance
+     * @param destination the destination path
+     */
+    static inline void extractIcon(InstancePtr inst, QString destination);
+
+    /**
+     * @brief extract the MultiMC launcher.jar
+     * @param destination the destination path
+     */
+    static inline void extractLauncher(QString destination);
+
+    /**
+     * @brief prepare the launch by extracting icon and launcher
+     * @param inst the instance
+     */
+    static void prepare(InstancePtr inst);
+
+    /**
+     * @brief split a string into argv items like a shell would do
+     * @param args the argument string
+     * @return a QStringList containing all arguments
+     */
+    static QStringList splitArgs(QString args);
+
+signals:
+    /**
+     * @brief emitted when mc has finished and the PostLaunchCommand was run
+     */
+    void ended();
+
+protected:
+    InstancePtr m_instance;
+    QString m_user;
+    QString m_session;
+    QProcess m_prepostlaunchprocess;
+    QStringList m_arguments;
+
+    void genArgs();
+    void log(QString text);
+
+protected slots:
+    void finish(int, QProcess::ExitStatus status);
+    void on_stdErr();
+    void on_stdOut();
+
+};
+
+#endif // MINECRAFTPROCESS_H
diff --git a/libmultimc/include/pluginmanager.h b/libmultimc/include/pluginmanager.h
new file mode 100644
index 00000000..1fc22a6c
--- /dev/null
+++ b/libmultimc/include/pluginmanager.h
@@ -0,0 +1,74 @@
+/* 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.
+ */
+
+#ifndef PLUGINMANAGER_H
+#define PLUGINMANAGER_H
+
+#include <QObject>
+#include <QList>
+#include <QPluginLoader>
+
+#include "libmmc_config.h"
+
+/*!
+ * \brief This class is a singleton that manages loading plugins.
+ */
+class LIBMULTIMC_EXPORT PluginManager : public QObject
+{
+	Q_OBJECT
+public:
+	/*!
+	 * \brief Gets the plugin manager instance.
+	 */
+	static PluginManager &get() { return manager; }
+	
+	/*!
+	 * \brief Loads plugins from the given directory.
+	 * This function does \e not initialize the plugins. It simply loads their
+	 * classes. Use the init functions to initialize the various plugin types.
+	 * \param The directory to load plugins from.
+	 * \return True if successful. False on failure.
+	 */
+	bool loadPlugins(QString pluginDir);
+	
+	/*!
+	 * \brief Checks how many plugins are loaded.
+	 * \return The number of plugins.
+	 */
+	int count() { return m_plugins.count(); }
+	
+	/*!
+	 * \brief Gets the plugin at the given index.
+	 * \param index The index of the plugin to get.
+	 * \return The plugin at the given index.
+	 */
+	QPluginLoader *getPlugin(int index);
+	
+	/*!
+	 * \brief Initializes and registers all the instance types. 
+	 * This is done by going through the plugin list and registering all of the
+	 * plugins that derive from the InstanceTypeInterface with the InstanceLoader.
+	 */
+	void initInstanceTypes();
+	
+private:
+	PluginManager();
+	
+	QList<QPluginLoader *> m_plugins;
+	
+	static PluginManager manager;
+};
+
+#endif // PLUGINMANAGER_H
diff --git a/libmultimc/include/task.h b/libmultimc/include/task.h
new file mode 100644
index 00000000..b1a3052d
--- /dev/null
+++ b/libmultimc/include/task.h
@@ -0,0 +1,56 @@
+/* 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.
+ */
+
+#ifndef TASK_H
+#define TASK_H
+
+#include <QObject>
+#include <QThread>
+#include <QString>
+
+#include "libmmc_config.h"
+
+class LIBMULTIMC_EXPORT Task : public QThread
+{
+	Q_OBJECT
+public:
+	explicit Task(QObject *parent = 0);
+	
+	// Starts the task.
+	void startTask();
+	
+	QString getStatus() const;
+	int getProgress() const;
+	
+public slots:
+	void setStatus(const QString& status);
+	void setProgress(int progress);
+	
+signals:
+	void taskStarted(Task* task);
+	void taskEnded(Task* task);
+	
+	void statusChanged(const QString& status);
+	void progressChanged(int progress);
+	
+protected:
+	virtual void run();
+	virtual void executeTask() = 0;
+	
+	QString status;
+	int progress;
+};
+
+#endif // TASK_H
diff --git a/libmultimc/include/userinfo.h b/libmultimc/include/userinfo.h
new file mode 100644
index 00000000..280f98de
--- /dev/null
+++ b/libmultimc/include/userinfo.h
@@ -0,0 +1,41 @@
+/* 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.
+ */
+
+#ifndef USERINFO_H
+#define USERINFO_H
+
+#include <QObject>
+
+#include "libmmc_config.h"
+
+class LIBMULTIMC_EXPORT UserInfo : public QObject
+{
+	Q_OBJECT
+public:
+	explicit UserInfo(const QString& username, const QString& password, QObject *parent = 0);
+	explicit UserInfo(const UserInfo& other);
+	
+	QString username() const;
+	void setUsername(const QString& username);
+	
+	QString password() const;
+	void setPassword(const QString& password);
+	
+protected:
+	QString m_username;
+	QString m_password;
+};
+
+#endif // USERINFO_H
diff --git a/libmultimc/include/version.h b/libmultimc/include/version.h
new file mode 100644
index 00000000..3025260b
--- /dev/null
+++ b/libmultimc/include/version.h
@@ -0,0 +1,69 @@
+/* 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.
+ */
+
+#ifndef VERSION_H
+#define VERSION_H
+
+#include <QObject>
+
+#include "libmmc_config.h"
+
+/*!
+ * \brief The Version class represents a MultiMC version number.
+ */
+class LIBMULTIMC_EXPORT Version : public QObject
+{
+	Q_OBJECT
+public:
+	explicit Version(int major = 0, int minor = 0, int revision = 0, 
+					 int build = 0, QObject *parent = 0);
+	
+	Version(const Version& ver);
+	
+	/*!
+	 * \brief Converts the Version to a string.
+	 * \return The version number in string format (major.minor.revision.build).
+	 */
+	QString toString() const;
+	
+	/*!
+	 * \brief The major version number.
+	 * For MultiMC 5, this will always be 5.
+	 */
+	int major;
+	
+	/*!
+	 * \brief The minor version number.
+	 * This number is incremented when major features are added.
+	 */
+	int minor;
+	
+	/*!
+	 * \brief The revision number.
+	 * This number is incremented for bugfixes and small features.
+	 */
+	int revision;
+	
+	/*!
+	 * \brief The build number.
+	 * This number is automatically set by Jenkins. It is incremented every time
+	 * a new build is run.
+	 */
+	int build;
+	
+	static Version current;
+};
+
+#endif // VERSION_H