/*
    Copyright (C) 2012-2020 Carl Hetherington <cth@carlh.net>

    This file is part of DCP-o-matic.

    DCP-o-matic is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    DCP-o-matic is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.

*/

/** @file  src/lib/cross.h
 *  @brief Cross-platform compatibility code.
 */

#ifndef DCPOMATIC_CROSS_H
#define DCPOMATIC_CROSS_H

#include <list>
#ifdef DCPOMATIC_OSX
#include <IOKit/pwr_mgt/IOPMLib.h>
#endif
#include <boost/filesystem.hpp>
/* windows.h defines this but we want to use it */
#undef ERROR
#include <boost/thread/mutex.hpp>
#include <boost/optional.hpp>

#ifdef DCPOMATIC_WINDOWS
#define WEXITSTATUS(w) (w)
#endif

class Log;
struct AVIOContext;

extern void dcpomatic_sleep_seconds(int);
extern void dcpomatic_sleep_milliseconds(int);
extern std::string cpu_info();
extern void run_ffprobe(boost::filesystem::path content, boost::filesystem::path out, bool err = true, std::string args = {});
extern std::list<std::pair<std::string, std::string>> mount_info();
extern boost::filesystem::path openssl_path();
extern void make_foreground_application();
#ifdef DCPOMATIC_DISK
extern boost::filesystem::path disk_writer_path();
#endif
#ifdef DCPOMATIC_WINDOWS
extern void maybe_open_console();
#endif
extern boost::filesystem::path resources_path();
extern boost::filesystem::path libdcp_resources_path();
extern void start_batch_converter();
extern void start_player();
extern uint64_t thread_id();
extern int avio_open_boost(AVIOContext** s, boost::filesystem::path file, int flags);
extern boost::filesystem::path home_directory();
extern bool running_32_on_64();
extern void unprivileged();
extern boost::filesystem::path config_path(boost::optional<std::string> version);
extern boost::filesystem::path directory_containing_executable();
extern bool show_in_file_manager(boost::filesystem::path dir, boost::filesystem::path select);
namespace dcpomatic {
	std::string get_process_id();
}


/** @class Waker
 *  @brief A class which tries to keep the computer awake on various operating systems.
 *
 *  Create a Waker to prevent sleep, and call nudge() every so often (every minute or so).
 *  Destroy the Waker to allow sleep again.
 */
class Waker
{
public:
	enum class Reason {
		PLAYING,
		ENCODING
	};

	Waker(Reason reason);
	~Waker();

	void nudge();

private:
	boost::mutex _mutex;
#ifdef DCPOMATIC_WINDOWS
	Reason _reason;
#endif
#ifdef DCPOMATIC_OSX
	IOPMAssertionID _assertion_id;
#endif
};


class Drive
{
public:
#ifdef DCPOMATIC_OSX
	Drive(std::string device, bool mounted, uint64_t size, boost::optional<std::string> vendor, boost::optional<std::string> model)
		: _device(device)
		, _mounted(mounted)
		, _size(size)
		, _vendor(vendor)
		, _model(model)
	{}
#else
	Drive(std::string device, std::vector<boost::filesystem::path> mount_points, uint64_t size, boost::optional<std::string> vendor, boost::optional<std::string> model)
		: _device(device)
		, _mount_points(mount_points)
		, _size(size)
		, _vendor(vendor)
		, _model(model)
	{}
#endif

	explicit Drive(std::string);

	std::string as_xml() const;

	std::string description() const;

	std::string device() const {
		return _device;
	}

	bool mounted() const {
#ifdef DCPOMATIC_OSX
		return _mounted;
#else
		return !_mount_points.empty();
#endif
	}

	std::string log_summary() const;

	/** Unmount any mounted partitions on a drive.
	 *  @return true on success, false on failure.
	 */
	bool unmount();

#ifdef DCPOMATIC_OSX
	void set_mounted() {
		_mounted = true;
	}
#endif

	static std::vector<Drive> get();

private:
	std::string _device;
#ifdef DCPOMATIC_OSX
	bool _mounted;
#else
	std::vector<boost::filesystem::path> _mount_points;
#endif
	/** size in bytes */
	uint64_t _size;
	boost::optional<std::string> _vendor;
	boost::optional<std::string> _model;
};


void disk_write_finished();


class ArgFixer
{
public:
	ArgFixer(int argc, char** argv);

	int argc() const {
		return _argc;
	}

	char** argv() const {
		 return _argv;
	}

private:
	int _argc;
	char** _argv;
#ifdef DCPOMATIC_WINDOWS
	std::vector<std::string> _argv_strings;
#endif

};


#endif