/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file)
 and all other portions of this file are Copyright (c) 2013-2017 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#include "System.h"
#include "Application.h"
#include "FavoriteVolume.h"
#include "Xml.h"

namespace VeraCrypt
{
	FavoriteVolumeList FavoriteVolume::LoadList ()
	{
		FavoriteVolumeList favorites;

		FilePath path = Application::GetConfigFilePath (GetFileName());

		if (path.IsFile())
		{
			foreach (XmlNode node, XmlParser (path).GetNodes (L"volume"))
			{
				VolumeSlotNumber slotNumber = 0;
				wstring attr = wstring (node.Attributes[L"slotnumber"]);
				if (!attr.empty())
					slotNumber = StringConverter::ToUInt64 (attr);

				bool readOnly = false;
				attr = wstring (node.Attributes[L"readonly"]);
				if (!attr.empty())
					readOnly = (StringConverter::ToUInt32 (attr) != 0 ? true : false);

				bool system = false;
				attr = wstring (node.Attributes[L"system"]);
				if (!attr.empty())
					system = (StringConverter::ToUInt32 (attr) != 0 ? true : false);

				favorites.push_back (shared_ptr <FavoriteVolume> (
					new FavoriteVolume ((wstring) node.InnerText, wstring (node.Attributes[L"mountpoint"]), slotNumber, readOnly, system)));
			}
		}

		return favorites;
	}

	void FavoriteVolume::SaveList (const FavoriteVolumeList &favorites)
	{
		FilePath favoritesCfgPath = Application::GetConfigFilePath (GetFileName(), true);

		if (favorites.empty())
		{
			if (favoritesCfgPath.IsFile())
				favoritesCfgPath.Delete();
		}
		else
		{
			XmlNode favoritesXml (L"favorites");

			foreach_ref (const FavoriteVolume &favorite, favorites)
			{
				XmlNode node (L"volume", wstring (favorite.Path));
				node.Attributes[L"mountpoint"] = wstring (favorite.MountPoint);
				node.Attributes[L"slotnumber"] = StringConverter::FromNumber (favorite.SlotNumber);
				node.Attributes[L"readonly"] = StringConverter::FromNumber (favorite.ReadOnly ? 1 : 0);
				node.Attributes[L"system"] = StringConverter::FromNumber (favorite.System ? 1 : 0);

				favoritesXml.InnerNodes.push_back (node);
			}

			XmlWriter favoritesWriter (favoritesCfgPath);
			favoritesWriter.WriteNode (favoritesXml);
			favoritesWriter.Close();
		}
	}

	void FavoriteVolume::ToMountOptions (MountOptions &options) const
	{
		if (MountPoint.IsEmpty())
		{
			options.MountPoint.reset();
			options.NoFilesystem = true;
		}
		else
			options.MountPoint.reset (new DirectoryPath (MountPoint));

		options.Path.reset (new VolumePath (Path));
		options.PartitionInSystemEncryptionScope = System;
		options.Protection = (ReadOnly ? VolumeProtection::ReadOnly : VolumeProtection::None);
		options.SlotNumber = SlotNumber;
	}
}
