1 files changed, 139 insertions, 0 deletions
diff --git a/VKPC/Playlist.m b/VKPC/Playlist.m
new file mode 100644
index 0000000..0b51cd4
--- /dev/null
+++ b/VKPC/Playlist.m
@@ -0,0 +1,139 @@
+//
+//  Playlist.m
+//  VKPC
+//
+//  Created by Evgeny on 12/4/13.
+//  Copyright (c) 2013-2014 Eugene Z. All rights reserved.
+//
+
+#import "Playlist.h"
+
+@implementation Playlist 
+
+- (id)init {
+    if (self = [super init]) {
+        _tracks = [[NSMutableArray alloc] init];
+        _title = [[NSString alloc] init];
+        _playlistID = 0;
+        _lastPlaylistID = 0;
+        _lastTitle = @"";
+        _lastTracksCount = 0;
+        
+        _lastPlaying.index = -1;
+        _lastPlaying.status = PlayingStatusNotPlaying;
+        
+        _playing.index = -1;
+        _playing.status = PlayingStatusNotPlaying;
+        
+        _browser = @"";
+        _delegate = nil;
+    }
+    
+    return self;
+}
+
+- (void)setTracks:(NSArray *)tracks {
+    _lastTracksCount = tracks.count;
+    
+    [_tracks removeAllObjects];
+    [_tracks addObjectsFromArray:tracks];
+}
+
+- (void)setPlaylistID:(NSInteger)playlistID {
+    _lastPlaylistID = playlistID;
+    _playlistID = playlistID;
+    
+    if (_delegate != nil) {
+        [_delegate playlistIDChanged:playlistID];
+    }
+}
+
+- (void)setTitle:(NSString *)title {
+    _lastTitle = [NSString stringWithString:_title];
+    _title = [NSString stringWithString:title];
+}
+
+// TODO fix in receiver
+//- (NSString *)title {
+//    return [_title isEqualToString:@""] ? [[[NSBundle mainBundle] infoDictionary] objectForKey:kCFBundleDisplayName] : _title;
+//}
+
+//- (NSString *)lastTitle {
+//    return [_lastTitle isEqualToString:@""] ? [[[NSBundle mainBundle] infoDictionary] objectForKey:kCFBundleDisplayName] : _lastTitle;
+//}
+
+//- (int)lastTracksCount {
+//    return lastTracksCount;
+//}
+
+//- (int)playlistId {
+//    return playlistId;
+//}
+
+//- (int)lastPlaylistId {
+//    return lastPlaylistId;
+//}
+
+//- (PlayingTrackStatus)playing {
+//    return playing;
+//}
+
+//- (PlayingTrackStatus)lastPlaying {
+//    return lastPlaying;
+//}
+
+- (void)setPlayingIndex:(NSInteger)index {
+    _lastPlaying.index = _playing.index;
+    _playing.index = index;
+}
+
+- (void)setPlayingStatus:(PlayingStatus)status {
+    _lastPlaying.status = _playing.status;
+    _playing.status = status;
+}
+
+- (void)replaceWithDataFromPlaylist:(Playlist *)pl {
+    self.tracks = pl.tracks;
+    self.title = pl.title;
+    self.playlistID = pl.playlistID;
+    self.browser = pl.browser;
+    
+    [self setPlayingIndex:pl.playing.index];
+    [self setPlayingStatus:pl.playing.status];
+}
+
+// TODO можно хранить таблицу _id => index, обновлять ее при каждом обновлении tracks
+- (int)trackIndexById:(NSString *)_id {
+    for (int i = 0; i < _tracks.count; i++) {
+        if ([(NSString *)((NSDictionary *)_tracks[i])[@"id"] isEqualToString:_id]) return i;
+    }
+    return -1;
+}
+
+- (void)clear {
+    self.title = @"";
+    self.browser = @"";
+//    [self setTitle:@""];
+//    [self setBrowser:@""];
+    
+    _lastTracksCount = _tracks.count;
+    [_tracks removeAllObjects];
+    
+    self.playlistID = 0;
+//    [self setId:0];
+    _playing.status = PlayingStatusNotPlaying;
+    _playing.index = -1;
+    
+    _lastPlaying.status = PlayingStatusNotPlaying;
+    _lastPlaying.index = -1;
+}
+
+- (BOOL)changed {
+    return _tracks.count != 0 || _lastTracksCount != _tracks.count || !([_title isEqualToString:_lastTitle]) || _playlistID != _lastPlaylistID;
+}
+
+- (BOOL)empty {
+    return _tracks.count == 0 && _playlistID <= 0;
+}
+
+@end