#import "RNSpotifyConvert.h"

@implementation RNSpotifyConvert

+(id)ID:(id)obj {
	if(obj == nil) {
		return [NSNull null];
	}
	return obj;
}

+(id)RNSpotifyError:(RNSpotifyError*)error {
	if(error==nil) {
		return [NSNull null];
	}
	return error.reactObject;
}

+(id)NSError:(NSError*)error {
	if(error==nil) {
		return [NSNull null];
	}
	return [self RNSpotifyError:[RNSpotifyError errorWithNSError:error]];
}

+(id)SPTPlaybackState:(SPTPlaybackState*)state {
	if(state == nil) {
		return [NSNull null];
	}
	return @{
		@"playing":[NSNumber numberWithBool:state.isPlaying],
		@"repeating":[NSNumber numberWithBool:state.isRepeating],
		@"shuffling":[NSNumber numberWithBool:state.isShuffling],
		@"activeDevice":[NSNumber numberWithBool:state.isActiveDevice],
		@"position":@(state.position)
	};
}

+(id)SPTPlaybackTrack:(SPTPlaybackTrack*)track {
	if(track == nil) {
		return [NSNull null];
	}
	return @{
		@"name":[[self class] ID:track.name],
		@"uri":[[self class] ID:track.uri],
		@"contextName":[[self class] ID:track.playbackSourceName],
		@"contextUri":[[self class] ID:track.playbackSourceUri],
		@"artistName":[[self class] ID:track.artistName],
		@"artistUri":[[self class] ID:track.artistUri],
		@"albumName":[[self class] ID:track.albumName],
		@"albumUri":[[self class] ID:track.albumUri],
		@"albumCoverArtURL":[[self class] ID:track.albumCoverArtURL],
		@"duration":@(track.duration),
		@"indexInContext":@(track.indexInContext)
	};
}

+(id)SPTPlaybackMetadata:(SPTPlaybackMetadata*)metadata {
	if(metadata == nil) {
		return [NSNull null];
	}
	return @{
		@"prevTrack":[[self class] SPTPlaybackTrack:metadata.prevTrack],
		@"currentTrack":[[self class] SPTPlaybackTrack:metadata.currentTrack],
		@"nextTrack":[[self class] SPTPlaybackTrack:metadata.nextTrack]
	};
}

+(id)RNSpotifySessionData:(RNSpotifySessionData*)session {
	if(session == nil) {
		return [NSNull null];
	}
	return @{
		@"accessToken": [RNSpotifyConvert ID:session.accessToken],
		@"refreshToken": [RNSpotifyConvert ID:session.refreshToken],
		@"expireTime": (session.expireDate != nil) ? [NSNumber numberWithDouble:(session.expireDate.timeIntervalSince1970*1000.0)] : [NSNull null],
		@"scopes": [RNSpotifyConvert ID:session.scopes]
	};
}

@end