/*
 * Copyright (c) 2010-2020 Belledonne Communications SARL.
 *
 * This file is part of linphone-iphone
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#import "linphoneapp-Swift.h"
#import "UIVideoButton.h"
#include "LinphoneManager.h"
#import "Log.h"

@implementation UIVideoButton {
	BOOL last_update_state;
}

@synthesize waitView;

INIT_WITH_COMMON_CF {
	last_update_state = FALSE;
	return self;
}

- (void)onOn {

	if (!linphone_core_video_display_enabled(LC))
		return;

	[self setEnabled:FALSE];
	[waitView startAnimating];

	LinphoneCall *call = linphone_core_get_current_call(LC);
	if (call) {
		CallAppData *data = [CallManager getAppDataWithCall:call];
		data.videoRequested = TRUE;/* will be used later to notify user if video was not activated because of the linphone core*/
		[CallManager setAppDataWithCall:call appData:data];
		LinphoneCallParams *call_params = linphone_core_create_call_params(LC,call);
		linphone_call_params_enable_video(call_params, TRUE);
		linphone_call_update(call, call_params);
		linphone_call_params_unref(call_params);
	} else if (self.inAudioConf) {
		LinphoneConferenceParams *cp = linphone_core_create_conference_params(LC);
		linphone_conference_params_set_video_enabled(cp, true);
		linphone_conference_update_params(linphone_core_get_conference(LC), cp);
	} else {
		LOGW(@"Cannot toggle video button, because no current call");
	}
}

- (void)onOff {

	if (!linphone_core_video_display_enabled(LC))
		return;
	[CallManager.instance changeRouteToDefault];
	//[CallManager.instance enableSpeakerWithEnable:FALSE];
	[self setEnabled:FALSE];
	[waitView startAnimating];

	LinphoneCall *call = linphone_core_get_current_call(LC);
	if (call) {
		LinphoneCallParams *call_params = linphone_core_create_call_params(LC,call);
		linphone_call_params_enable_video(call_params, FALSE);
		linphone_core_update_call(LC, call, call_params);
		linphone_call_params_unref(call_params);
	} else if (self.inVideoConf) {
		LinphoneConferenceParams *cp = linphone_core_create_conference_params(LC);
		linphone_conference_params_set_video_enabled(cp, false);
		linphone_conference_update_params(linphone_core_get_conference(LC), cp);
	} else {
		LOGW(@"Cannot toggle video button, because no current call or no video conference");
	}
}

- (bool)onUpdate {
	bool video_enabled = false;
	LinphoneCall *currentCall = linphone_core_get_current_call(LC);
	if (linphone_core_video_supported(LC)) {
		if (self.inAudioConf || self.inVideoConf || (linphone_core_video_display_enabled(LC) && currentCall && !linphone_core_sound_resources_locked(LC) &&
			linphone_call_get_state(currentCall) == LinphoneCallStreamsRunning)){
			video_enabled = TRUE;
		}
	}

	[self setEnabled:video_enabled];
	if (last_update_state != video_enabled)
		[waitView stopAnimating];
	if (video_enabled) {
		video_enabled = self.inVideoConf || (currentCall && linphone_call_params_video_enabled(linphone_call_get_current_params(currentCall)));
	}
	last_update_state = video_enabled;

	return video_enabled;
}

-(BOOL) inVideoConf {
	return (linphone_core_is_in_conference(LC) && linphone_core_get_conference(LC) != nil && linphone_conference_params_is_video_enabled(linphone_conference_get_current_params(linphone_core_get_conference(LC))));
}

-(BOOL) inAudioConf {
	return (linphone_core_is_in_conference(LC) && linphone_core_get_conference(LC) != nil && !linphone_conference_params_is_video_enabled(linphone_conference_get_current_params(linphone_core_get_conference(LC))));
}

@end