[Cuesheet Input] Fix metadata handling by merge

The inputs now have their own metadata function, so it should merge in
the track tags from the Cuesheet, and not just forward it to the
decoder.

Signed-off-by: Christopher Snowhill <kode54@gmail.com>

Plugins/CueSheet/CueSheetDecoder.m

@@ -10,7 +10,9 @@
 
 #import "CueSheet.h"
 #import "CueSheetContainer.h"
-#import "CueSheetTrack.h"
+#import "CueSheetMetadataReader.h"
+
+#import "NSDictionary+Merge.h"
 
 #import "Logging.h"
 
@@ -45,10 +47,13 @@
 }
 
 - (NSDictionary *)metadata {
+	NSDictionary *metadata = @{};
+	if(track != nil)
+		metadata = [CueSheetMetadataReader processDataForTrack:track];
 	if(decoder != nil)
-		return [decoder metadata];
+		return [metadata dictionaryByMergingWith:[decoder metadata]];
 	else
-		return @{};
+		return metadata;
 }
 
 - (BOOL)open:(id<CogSource>)s {

Plugins/CueSheet/CueSheetMetadataReader.h

@@ -10,7 +10,11 @@
 
 #import "Plugin.h"
 
+#import "CueSheetTrack.h"
+
 @interface CueSheetMetadataReader : NSObject <CogMetadataReader> {
 }
 
++ (NSDictionary *)processDataForTrack:(CueSheetTrack *)track;
+
 @end

Plugins/CueSheet/CueSheetMetadataReader.m

@@ -10,7 +10,6 @@
 #import "CueSheetDecoder.h"
 
 #import "CueSheet.h"
-#import "CueSheetTrack.h"
 
 #import "AudioMetadataReader.h"
 #import "NSDictionary+Merge.h"
@@ -68,6 +67,16 @@
 			if(!embedded)
 				fileMetadata = [audioMetadataReader metadataForURL:[track url] skipCue:YES];
 
+			NSDictionary *cuesheetMetadata = [CueSheetMetadataReader processDataForTrack:track];
+
+			return [cuesheetMetadata dictionaryByMergingWith:fileMetadata];
+		}
+	}
+
+	return nil;
+}
+
++ (NSDictionary *)processDataForTrack:(CueSheetTrack *)track {
 	NSMutableDictionary *cuesheetMetadata = [[NSMutableDictionary alloc] init];
 
 	if([track artist]) [cuesheetMetadata setValue:[track artist] forKey:@"artist"];
@@ -81,11 +90,7 @@
 	if([track trackGain]) [cuesheetMetadata setValue:[NSNumber numberWithFloat:[track trackGain]] forKey:@"replayGainTrackGain"];
 	if([track trackPeak]) [cuesheetMetadata setValue:[NSNumber numberWithFloat:[track trackPeak]] forKey:@"replayGainTrackPeak"];
 
-			return [cuesheetMetadata dictionaryByMergingWith:fileMetadata];
-		}
-	}
-
-	return nil;
+	return [NSDictionary dictionaryWithDictionary:cuesheetMetadata];
 }
 
 @end