/*
 * Copyright (C) 2008-2015 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2011-2012 Carl Hetherington <carl@carlh.net>
 * Copyright (C) 2013 Colin Fletcher <colin.m.fletcher@googlemail.com>
 * Copyright (C) 2015-2016 Tim Mayberry <mojofunk@gmail.com>
 * Copyright (C) 2015-2019 Robin Gareus <robin@gareus.org>
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/*sfdb_freesound_mootcher.h****************************************************************************

	Adapted for Ardour by Ben Loftis, March 2008
	Updated to new Freesound API by Colin Fletcher, November 2011

	Mootcher Online Access to thefreesoundproject website
	http://freesound.iua.upf.edu/

	GPL 2005 Jorn Lemon
	mail for questions/remarks: mootcher@twistedlemon.nl
	or go to the freesound website forum

*****************************************************************************/

#ifndef __gtk_ardour_sfdb_freesound_mootcher_h__
#define __gtk_ardour_sfdb_freesound_mootcher_h__

#include <string>
#include <stdio.h>
#include <cstring>
#include <string>
#include <sstream>
#include <vector>
#include <gtkmm/progressbar.h>
//#include <ctime>

#include "sfdb_ui.h"

#include "curl/curl.h"

//--- struct to store XML file
struct SfdbMemoryStruct {
	char *memory;
	size_t size;
};

enum sortMethod {
	sort_none,			// no sort
	sort_duration_descending,	// Sort by the duration of the sounds, longest sounds first.
	sort_duration_ascending, 	// Same as above, but shortest sounds first.
	sort_created_descending, 	// Sort by the date of when the sound was added. newest sounds first.
	sort_created_ascending, 	// Same as above, but oldest sounds first.
	sort_downloads_descending, 	// Sort by the number of downloads, most downloaded sounds first.
	sort_downloads_ascending, 	// Same as above, but least downloaded sounds first.
	sort_rating_descending, 	// Sort by the average rating given to the sounds, highest rated first.
	sort_rating_ascending 		// Same as above, but lowest rated sounds first.
};


class Mootcher: public sigc::trackable, public PBD::ScopedConnectionList
{
public:
	Mootcher(const std::string &token);
	~Mootcher();

	bool checkAudioFile(std::string originalFileName, std::string ID);
	bool fetchAudioFile(std::string originalFileName, std::string ID, std::string audioURL, SoundFileBrowser *caller, std::string &token);
	std::string searchText(std::string query, int page, std::string filter, enum sortMethod sort);
	std::string searchSimilar(std::string id);
	void* threadFunc();
	SoundFileBrowser *sfb;
	std::string audioFileName;
	std::string ID;

	/** signal emitted when mootcher reports progress updates during download.
	 * The parameters are current and total numbers of bytes downloaded.
	 */
	PBD::Signal2<void, double, double> Progress;
	/** signal emitted when the mootcher has finished downloading. */
	PBD::Signal0<void> Finished;


private:
	void ensureWorkingDir ();

	bool get_oauth_token();
	std::string auth_code_to_oauth_token(const std::string &auth_code);

	std::string doRequest(std::string uri, std::string params);
	void setcUrlOptions();

	static size_t WriteMemoryCallback (void *ptr, size_t size, size_t nmemb, void *data);
	static int progress_callback (void *clientp, double dltotal, double dlnow, double ultotal, double ulnow);
	std::string sortMethodString (enum sortMethod sort);
	std::string getSoundResourceFile (std::string ID);

	CURL *curl;
	char errorBuffer[CURL_ERROR_SIZE]; // storage for cUrl error message

	FILE* theFile;

	void updateProgress(double dlnow, double dltotal);
	void doneWithMootcher();
	void report_login_error(const std::string &msg);

	Gtk::HBox progress_hbox;
	Gtk::ProgressBar progress_bar;
	Gtk::Button cancel_download_btn;

	bool cancel_download;
	void cancelDownload() {
		cancel_download = true;
		progress_hbox.hide();
	}

	std::string basePath;
	std::string xmlLocation;
	std::string oauth_token;
	struct curl_slist *custom_headers;
};

#endif // __gtk_ardour_sfdb_freesound_mootcher_h__
