#include "InstallerUtil.h"

#include "LocalCopyMethod.h"

LocalCopyMethod g_LocalCopier;

DWORD CALLBACK CopyProgressRoutine(LARGE_INTEGER TotalFileSize,

								   LARGE_INTEGER TotalBytesTransferred,

								   LARGE_INTEGER StreamSize,

								   LARGE_INTEGER StreamBytesTransferred,

								   DWORD dwStreamNumber,

								   DWORD dwCallbackReason,

								   HANDLE hSourceFile,

								   HANDLE hDestinationFile,

								   LPVOID lpData)

{

	ICopyProgress *progress = (ICopyProgress *)lpData;

	float percent = (float)(TotalBytesTransferred.QuadPart) / (float)(TotalFileSize.QuadPart);

	progress->UpdateProgress(percent);

	return PROGRESS_CONTINUE;

}

LocalCopyMethod::LocalCopyMethod()

{

	m_pProgress = NULL;

}

void LocalCopyMethod::SetOutputPath(const TCHAR *path)

{

	UTIL_PathFormat(m_OutputPath,

		sizeof(m_OutputPath) / sizeof(TCHAR),

		_T("%s"),

		path);

	UTIL_PathFormat(m_CurrentPath,

		sizeof(m_CurrentPath) / sizeof(TCHAR),

		_T("%s"),

		path);

}

void LocalCopyMethod::TrackProgress(ICopyProgress *pProgress)

{

	m_pProgress = pProgress;

}

bool LocalCopyMethod::CreateFolder(const TCHAR *name, TCHAR *buffer, size_t maxchars)

{

	TCHAR path[MAX_PATH];

	UTIL_PathFormat(path,

		sizeof(path) / sizeof(TCHAR),

		_T("%s\\%s"),

		m_CurrentPath,

		name);

	if (CreateDirectory(name, NULL))

	{

		return true;

	}

	DWORD error = GetLastError();

	if (error == ERROR_ALREADY_EXISTS)

	{

		return true;

	}

	GenerateErrorMessage(error, buffer, maxchars);

	return false;

}

bool LocalCopyMethod::SetCurrentFolder(const TCHAR *path, TCHAR *buffer, size_t maxchars)

{

	if (path == NULL)

	{

		UTIL_PathFormat(m_CurrentPath,

			sizeof(m_CurrentPath) / sizeof(TCHAR),

			_T("%s"),

			m_OutputPath);

	}

	else

	{

		UTIL_PathFormat(m_CurrentPath,

			sizeof(m_CurrentPath) / sizeof(TCHAR),

			_T("%s\\%s"),

			m_OutputPath,

			path);

	}

	return true;

}

bool LocalCopyMethod::SendFile(const TCHAR *path, TCHAR *buffer, size_t maxchars)

{

	const TCHAR *filename = GetFileFromPath(path);

	if (filename == NULL)

	{

		UTIL_Format(buffer, maxchars, _T("Invalid filename"));

		return false;

	}

	TCHAR new_path[MAX_PATH];

	UTIL_PathFormat(new_path,

		sizeof(new_path) / sizeof(TCHAR),

		_T("%s\\%s"),

		m_CurrentPath,

		filename);

	m_bCancelStatus = FALSE;

	if (CopyFileEx(path,

		new_path,

		m_pProgress ? CopyProgressRoutine : NULL,

		m_pProgress,

		&m_bCancelStatus,

		0) == 0)

	{

		/* Delete the file in case it was a partial copy */

		DeleteFile(new_path);

		GenerateErrorMessage(GetLastError(), buffer, maxchars);

		return false;

	}

	return true;

}

void LocalCopyMethod::CancelCurrentCopy()

{

	m_bCancelStatus = TRUE;

}

bool LocalCopyMethod::CheckForExistingInstall()

{

	TCHAR path[MAX_PATH];

	UTIL_PathFormat(path,

		sizeof(path) / sizeof(TCHAR),

		_T("%s\\addons\\sourcemod"),

		m_CurrentPath);

	if (GetFileAttributes(path) == INVALID_FILE_ATTRIBUTES)

	{

		UTIL_PathFormat(path,

			sizeof(path) / sizeof(TCHAR),

			_T("%s\\cfg\\sourcemod"),

			m_CurrentPath);

		if (GetFileAttributes(path) == INVALID_FILE_ATTRIBUTES)

		{

			return false;

		}

	}

	return true;

}