/* UICallCell.m
 *
 * Copyright (C) 2012  Belledonne Comunications, Grenoble, France
 *
 *  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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#import <QuartzCore/QuartzCore.h>

#import "UICallCell.h"
#import "UILinphone.h"
#import "LinphoneManager.h"
#import "FastAddressBook.h"

@implementation UICallCellData

@synthesize address;
@synthesize image;

- (id)init:(LinphoneCall *)acall minimized:(BOOL)minimized {
	self = [super init];
	if (self != nil) {
		self->minimize = minimized;
		self->view = UICallCellOtherView_Avatar;
		self->call = acall;
		image = [UIImage imageNamed:@"avatar_unknown.png"];
		address = NSLocalizedString(@"Unknown", nil);
		[self update];
	}
	return self;
}

- (void)update {
	if (call == NULL) {
		LOGW(@"Cannot update call cell: null call or data");
		return;
	}
	const LinphoneAddress *addr = linphone_call_get_remote_address(call);

	if (addr != NULL) {
		BOOL useLinphoneAddress = true;
		// contact name
		char *lAddress = linphone_address_as_string_uri_only(addr);
		if (lAddress) {
			NSString *normalizedSipAddress = [FastAddressBook normalizeSipURI:[NSString stringWithUTF8String:lAddress]];
			ABRecordRef contact = [[[LinphoneManager instance] fastAddressBook] getContact:normalizedSipAddress];
			if (contact) {
				useLinphoneAddress = false;
				self.address = [FastAddressBook getContactDisplayName:contact];
				UIImage *tmpImage = [FastAddressBook getContactImage:contact thumbnail:false];
				if (tmpImage != nil) {
					dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, (unsigned long)NULL),
								   ^(void) {
									 UIImage *tmpImage2 = [UIImage decodedImageWithImage:tmpImage];
									 dispatch_async(dispatch_get_main_queue(), ^{
									   [self setImage:tmpImage2];
									 });
								   });
				}
			}
			ms_free(lAddress);
		}
		if (useLinphoneAddress) {
			const char *lDisplayName = linphone_address_get_display_name(addr);
			const char *lUserName = linphone_address_get_username(addr);
			if (lDisplayName)
				self.address = [NSString stringWithUTF8String:lDisplayName];
			else if (lUserName)
				self.address = [NSString stringWithUTF8String:lUserName];
		}
	}
}

@end

@implementation UICallCell

@synthesize data;

@synthesize headerBackgroundImage;
@synthesize headerBackgroundHighlightImage;

@synthesize addressLabel;
@synthesize stateLabel;
@synthesize stateImage;
@synthesize avatarImage;
@synthesize pauseButton;
@synthesize removeButton;

@synthesize headerView;
@synthesize avatarView;

@synthesize audioStatsView;

@synthesize audioCodecLabel;
@synthesize audioCodecHeaderLabel;
@synthesize audioUploadBandwidthLabel;
@synthesize audioUploadBandwidthHeaderLabel;
@synthesize audioDownloadBandwidthLabel;
@synthesize audioDownloadBandwidthHeaderLabel;
@synthesize audioIceConnectivityLabel;
@synthesize audioIceConnectivityHeaderLabel;

@synthesize videoStatsView;

@synthesize videoCodecLabel, videoCodecHeaderLabel;
@synthesize videoUploadBandwidthLabel, videoUploadBandwidthHeaderLabel;
@synthesize videoDownloadBandwidthLabel, videoDownloadBandwidthHeaderLabel;
@synthesize videoIceConnectivityLabel, videoIceConnectivityHeaderLabel;

@synthesize videoRecvSizeFPSHeaderLabel, videoRecvSizeFPSLabel;
@synthesize videoSentSizeFPSHeaderLabel, videoSentSizeFPSLabel;

@synthesize otherView;

@synthesize firstCell;
@synthesize conferenceCell;
@synthesize currentCall;
@synthesize detailsLeftSwipeGestureRecognizer;
@synthesize detailsRightSwipeGestureRecognizer;

#pragma mark - Lifecycle Functions

- (id)initWithIdentifier:(NSString *)identifier {
	if ((self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier]) != nil) {
		NSArray *arrayOfViews = [[NSBundle mainBundle] loadNibNamed:@"UICallCell" owner:self options:nil];

		if ([arrayOfViews count] >= 1) {
			// resize cell to match .nib size. It is needed when resized the cell to
			// correctly adapt its height too
			UIView *sub = ((UIView *)[arrayOfViews objectAtIndex:0]);
			[self setFrame:CGRectMake(0, 0, sub.frame.size.width, sub.frame.size.height)];
			[self addSubview:sub];
		}
		// Set selected+over background: IB lack !
		[pauseButton setImage:[UIImage imageNamed:@"call_state_pause_over.png"]
					 forState:(UIControlStateHighlighted | UIControlStateSelected)];

		self->currentCall = FALSE;

		_outgoingRingCountLabel.hidden = YES;
		_outgoingRingCountLabel.text = @"0";

		self->detailsRightSwipeGestureRecognizer =
			[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(doDetailsSwipe:)];
		[detailsRightSwipeGestureRecognizer setDirection:UISwipeGestureRecognizerDirectionLeft];
		[otherView addGestureRecognizer:detailsRightSwipeGestureRecognizer];

		self->detailsRightSwipeGestureRecognizer =
			[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(doDetailsSwipe:)];
		[detailsRightSwipeGestureRecognizer setDirection:UISwipeGestureRecognizerDirectionRight];
		[otherView addGestureRecognizer:detailsRightSwipeGestureRecognizer];

		[self->avatarView setHidden:TRUE];
		[self->audioStatsView setHidden:TRUE];
		[self->videoStatsView setHidden:TRUE];

		[UICallCell adaptSize:audioCodecHeaderLabel field:audioCodecLabel];
		[UICallCell adaptSize:audioDownloadBandwidthHeaderLabel field:audioDownloadBandwidthLabel];
		[UICallCell adaptSize:audioUploadBandwidthHeaderLabel field:audioUploadBandwidthLabel];
		[UICallCell adaptSize:audioIceConnectivityHeaderLabel field:audioIceConnectivityLabel];

		[UICallCell adaptSize:videoCodecHeaderLabel field:videoCodecLabel];
		[UICallCell adaptSize:videoDownloadBandwidthHeaderLabel field:videoDownloadBandwidthLabel];
		[UICallCell adaptSize:videoUploadBandwidthHeaderLabel field:videoUploadBandwidthLabel];
		[UICallCell adaptSize:videoIceConnectivityHeaderLabel field:videoIceConnectivityLabel];

		if ([LinphoneManager runningOnIpad]) {
			[LinphoneUtils adjustFontSize:self.audioStatsView mult:2.22];
			[LinphoneUtils adjustFontSize:self.videoStatsView mult:2.22];
		}

		[[NSNotificationCenter defaultCenter] addObserver:self
												 selector:@selector(applicationWillEnterForeground:)
													 name:UIApplicationWillEnterForegroundNotification
												   object:nil];
	}
	return self;
}

- (void)dealloc {
	[[NSNotificationCenter defaultCenter] removeObserver:self
													name:UIApplicationWillEnterForegroundNotification
												  object:nil];
}

#pragma mark - Properties Functions

- (void)setData:(UICallCellData *)adata {
	if (adata == data) {
		return;
	}
	if (data != nil) {
		data = nil;
	}
	if (adata != nil) {
		data = adata;
	}
}

- (void)setCurrentCall:(BOOL)val {
	currentCall = val;
	if (currentCall && ![self isBlinkAnimationRunning:@"blink" target:headerBackgroundHighlightImage]) {
		[self startBlinkAnimation:@"blink" target:headerBackgroundHighlightImage];
	}
	if (!currentCall) {
		[self stopBlinkAnimation:@"blink" target:headerBackgroundHighlightImage];
	}
}

#pragma mark - Static Functions

+ (int)getMaximizedHeight {
	return [LinphoneManager runningOnIpad] ? 600 : 300;
}

+ (int)getMinimizedHeight {
	return [LinphoneManager runningOnIpad] ? 126 : 63;
}

+ (void)adaptSize:(UILabel *)label field:(UIView *)field {
	//
	// Adapt size
	//
	CGRect labelFrame = [label frame];
	CGRect fieldFrame = [field frame];

	fieldFrame.origin.x -= labelFrame.size.width;

	// Compute firstName size
	CGSize contraints;
	contraints.height = [label frame].size.height;
	contraints.width = ([field frame].size.width + [field frame].origin.x) - [label frame].origin.x;
	CGSize firstNameSize = [[label text] sizeWithFont:[label font] constrainedToSize:contraints];
	labelFrame.size.width = firstNameSize.width;

	// Compute lastName size & position
	fieldFrame.origin.x += labelFrame.size.width;
	fieldFrame.size.width = (contraints.width + [label frame].origin.x) - fieldFrame.origin.x;

	[label setFrame:labelFrame];
	[field setFrame:fieldFrame];
}

+ (NSString *)iceToString:(LinphoneIceState)state {
	switch (state) {
	case LinphoneIceStateNotActivated:
		return NSLocalizedString(@"Not activated", @"ICE has not been activated for this call");
		break;
	case LinphoneIceStateFailed:
		return NSLocalizedString(@"Failed", @"ICE processing has failed");
		break;
	case LinphoneIceStateInProgress:
		return NSLocalizedString(@"In progress", @"ICE process is in progress");
		break;
	case LinphoneIceStateHostConnection:
		return NSLocalizedString(@"Direct connection", @"ICE has established a direct connection to the remote host");
		break;
	case LinphoneIceStateReflexiveConnection:
		return NSLocalizedString(@"NAT(s) connection",
								 @"ICE has established a connection to the remote host through one or several NATs");
		break;
	case LinphoneIceStateRelayConnection:
		return NSLocalizedString(@"Relay connection", @"ICE has established a connection through a relay");
		break;
	}
}

#pragma mark - Event Functions

- (void)applicationWillEnterForeground:(NSNotification *)notif {
	if (currentCall) {
		[self startBlinkAnimation:@"blink" target:headerBackgroundHighlightImage];
	}
}

#pragma mark - Animation Functions

- (void)startBlinkAnimation:(NSString *)animationID target:(UIView *)target {
	if ([[LinphoneManager instance] lpConfigBoolForKey:@"animations_preference"]) {
		CABasicAnimation *blink = [CABasicAnimation animationWithKeyPath:@"opacity"];
		blink.duration = 1.0;
		blink.fromValue = [NSNumber numberWithDouble:0.0f];
		blink.toValue = [NSNumber numberWithDouble:1.0f];
		blink.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
		blink.autoreverses = TRUE;
		blink.repeatCount = HUGE_VALF;
		[target.layer addAnimation:blink forKey:animationID];
	} else {
		[target setAlpha:1.0f];
	}
}

- (BOOL)isBlinkAnimationRunning:(NSString *)animationID target:(UIView *)target {
	return [target.layer animationForKey:animationID] != nil;
}

- (void)stopBlinkAnimation:(NSString *)animationID target:(UIView *)target {
	if ([self isBlinkAnimationRunning:animationID target:target]) {
		[target.layer removeAnimationForKey:animationID];
	}
	[target setAlpha:0.0f];
}

- (void)displayIncrementedOutgoingRingCount {
	_outgoingRingCountLabel.hidden = NO;
	[UIView transitionWithView:_outgoingRingCountLabel
					  duration:0.5f
					   options:UIViewAnimationOptionTransitionCrossDissolve
					animations:^{
					  _outgoingRingCountLabel.text = [@(_outgoingRingCountLabel.text.intValue + 1) stringValue];
					}
					completion:nil];
}

- (void)stopOutgoingRingCount {
	if (_outgoingRingCountTimer != nil)
		[_outgoingRingCountTimer invalidate];
	_outgoingRingCountLabel.hidden = YES;
	_outgoingRingCountLabel.text = @"0";
	_outgoingRingCountTimer = nil;
}

#pragma mark -

- (void)update {
	if (data == nil || data->call == NULL) {
		LOGW(@"Cannot update call cell: null call or data");
		return;
	}
	LinphoneCall *call = data->call;

	[pauseButton setType:UIPauseButtonType_Call call:call];

	[addressLabel setText:data.address];
	[avatarImage setImage:data.image];

	LinphoneCallState state = linphone_call_get_state(call);
	if (!conferenceCell) {
		if (state == LinphoneCallOutgoingRinging) {
			[stateImage setImage:[UIImage imageNamed:@"call_state_ringing_default.png"]];
			[stateImage setHidden:false];
			[pauseButton setHidden:true];
			if (_outgoingRingCountTimer == nil) {
				_outgoingRingCountTimer =
					[NSTimer scheduledTimerWithTimeInterval:2.0f
													 target:self
												   selector:@selector(displayIncrementedOutgoingRingCount)
												   userInfo:nil
													repeats:YES];
				[_outgoingRingCountTimer fire];
			}
		} else if (state == LinphoneCallOutgoingInit || state == LinphoneCallOutgoingProgress) {
			[stateImage setImage:[UIImage imageNamed:@"call_state_outgoing_default.png"]];
			[stateImage setHidden:false];
			[pauseButton setHidden:true];
			[self stopOutgoingRingCount];
		} else {
			[stateImage setHidden:true];
			[pauseButton setHidden:false];
			[pauseButton update];
			[self stopOutgoingRingCount];
		}
		[removeButton setHidden:true];
		if (firstCell) {
			[headerBackgroundImage setImage:[UIImage imageNamed:@"cell_call_first.png"]];
			[headerBackgroundHighlightImage setImage:[UIImage imageNamed:@"cell_call_first_highlight.png"]];
		} else {
			[headerBackgroundImage setImage:[UIImage imageNamed:@"cell_call.png"]];
			[headerBackgroundHighlightImage setImage:[UIImage imageNamed:@"cell_call_highlight.png"]];
		}
	} else {
		[stateImage setHidden:true];
		[pauseButton setHidden:true];
		[removeButton setHidden:false];
		[headerBackgroundImage setImage:[UIImage imageNamed:@"cell_conference.png"]];
	}

	int duration = linphone_call_get_duration(call);
	[stateLabel setText:[NSString stringWithFormat:@"%02i:%02i", (duration / 60), (duration % 60), nil]];

	if (!data->minimize) {
		CGRect frame = [self frame];
		frame.size.height = [UICallCell getMaximizedHeight];
		[self setFrame:frame];
		frame = otherView.frame;
		frame.size.height = [UICallCell getMaximizedHeight];
		[otherView setHidden:false];
		otherView.frame = frame;
	} else {
		CGRect frame = [self frame];
		frame.size.height = [headerView frame].size.height;
		[self setFrame:frame];
		[otherView setHidden:true];
	}

	[self updateStats];

	[self updateDetailsView];
}

- (void)updateStats {
	if (data == nil || data->call == NULL) {
		LOGW(@"Cannot update call cell: null call or data");
		return;
	}
	LinphoneCall *call = data->call;

	const LinphoneCallParams *params = linphone_call_get_current_params(call);
	{
		const PayloadType *payload = linphone_call_params_get_used_audio_codec(params);
		if (payload != NULL) {
			[audioCodecLabel setText:[NSString stringWithFormat:@"%s/%i/%i", payload->mime_type, payload->clock_rate,
																payload->channels]];
		} else {
			[audioCodecLabel setText:NSLocalizedString(@"No codec", nil)];
		}
		const LinphoneCallStats *stats = linphone_call_get_audio_stats(call);
		if (stats != NULL) {
			[audioUploadBandwidthLabel setText:[NSString stringWithFormat:@"%1.1f kbits/s", stats->upload_bandwidth]];
			[audioDownloadBandwidthLabel
				setText:[NSString stringWithFormat:@"%1.1f kbits/s", stats->download_bandwidth]];
			[audioIceConnectivityLabel setText:[UICallCell iceToString:stats->ice_state]];
		} else {
			[audioUploadBandwidthLabel setText:@""];
			[audioDownloadBandwidthLabel setText:@""];
			[audioIceConnectivityLabel setText:@""];
		}
	}

	{
		const PayloadType *payload = linphone_call_params_get_used_video_codec(params);
		if (payload != NULL) {
			[videoCodecLabel setText:[NSString stringWithFormat:@"%s/%i", payload->mime_type, payload->clock_rate]];
		} else {
			[videoCodecLabel setText:NSLocalizedString(@"No codec", nil)];
		}

		const LinphoneCallStats *stats = linphone_call_get_video_stats(call);

		if (stats != NULL && linphone_call_params_video_enabled(params)) {
			MSVideoSize sentSize = linphone_call_params_get_sent_video_size(params);
			MSVideoSize recvSize = linphone_call_params_get_received_video_size(params);
			float sentFPS = linphone_call_params_get_sent_framerate(params);
			float recvFPS = linphone_call_params_get_received_framerate(params);

			[videoUploadBandwidthLabel setText:[NSString stringWithFormat:@"%1.1f kbits/s", stats->upload_bandwidth]];
			[videoDownloadBandwidthLabel
				setText:[NSString stringWithFormat:@"%1.1f kbits/s", stats->download_bandwidth]];
			[videoIceConnectivityLabel setText:[UICallCell iceToString:stats->ice_state]];
			[videoSentSizeFPSLabel
				setText:[NSString stringWithFormat:@"%dx%d (%.1fFPS)", sentSize.width, sentSize.height, sentFPS]];
			[videoRecvSizeFPSLabel
				setText:[NSString stringWithFormat:@"%dx%d (%.1fFPS)", recvSize.width, recvSize.height, recvFPS]];
		} else {
			[videoUploadBandwidthLabel setText:@""];
			[videoDownloadBandwidthLabel setText:@""];
			[videoIceConnectivityLabel setText:@""];
			[videoSentSizeFPSLabel setText:@"0x0"];
			[videoRecvSizeFPSLabel setText:@"0x0"];
		}
	}
}

- (void)updateDetailsView {
	if (data == nil || data->call == NULL) {
		LOGW(@"Cannot update call cell: null call or data");
		return;
	}
	if (data->view == UICallCellOtherView_Avatar && avatarView.isHidden) {
		[self->avatarView setHidden:FALSE];
		[self->audioStatsView setHidden:TRUE];
		[self->videoStatsView setHidden:TRUE];
	} else if (data->view == UICallCellOtherView_AudioStats && audioStatsView.isHidden) {
		[self->avatarView setHidden:TRUE];
		[self->audioStatsView setHidden:FALSE];
		[self->videoStatsView setHidden:TRUE];
	} else if (data->view == UICallCellOtherView_VideoStats && videoStatsView.isHidden) {
		[self->avatarView setHidden:TRUE];
		[self->audioStatsView setHidden:TRUE];
		[self->videoStatsView setHidden:FALSE];
	}
}

- (void)selfUpdate {
	UITableView *parentTable = (UITableView *)self.superview;

	while (parentTable != nil && ![parentTable isKindOfClass:[UITableView class]])
		parentTable = (UITableView *)[parentTable superview];

	if (parentTable != nil) {
		NSIndexPath *index = [parentTable indexPathForCell:self];
		if (index != nil) {
			[parentTable reloadRowsAtIndexPaths:@[ index ] withRowAnimation:false];
		}
	}
}

#pragma mark - Action Functions

- (IBAction)doHeaderClick:(id)sender {
	if (data) {
		data->minimize = !data->minimize;
		[self selfUpdate];
	}
}

- (IBAction)doRemoveClick:(id)sender {
	if (data != nil && data->call != NULL) {
		linphone_core_remove_from_conference([LinphoneManager getLc], data->call);
	}
}

- (IBAction)doDetailsSwipe:(UISwipeGestureRecognizer *)sender {
	CATransition *trans = nil;
	if (data != nil) {
		if (sender.direction == UISwipeGestureRecognizerDirectionLeft) {
			if (data->view == UICallCellOtherView_MAX - 1) {
				data->view = 0;
			} else {
				++data->view;
			}
			trans = [CATransition animation];
			[trans setType:kCATransitionPush];
			[trans setDuration:0.35];
			[trans setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
			[trans setSubtype:kCATransitionFromRight];
		} else if (sender.direction == UISwipeGestureRecognizerDirectionRight) {
			if (data->view == 0) {
				data->view = UICallCellOtherView_MAX - 1;
			} else {
				--data->view;
			}
			trans = [CATransition animation];
			[trans setType:kCATransitionPush];
			[trans setDuration:0.35];
			[trans setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
			[trans setSubtype:kCATransitionFromLeft];
		}
		if (trans) {
			[otherView.layer removeAnimationForKey:@"transition"];
			[otherView.layer addAnimation:trans forKey:@"transition"];
			[self updateDetailsView];
		}
	}
}

@end