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 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
@@ -1221,12 +1188,10 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/libmpdclient/output",
 				);
-				MARKETING_VERSION = "0.16.0-alpha";
+				MARKETING_VERSION = "0.15.2-alpha";
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.Persephone;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_OBJC_BRIDGING_HEADER = "Persephone/MPDClient/Extensions/Persephone-Bridging-Header.h";
-				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
 				SYSTEM_HEADER_SEARCH_PATHS = Persephone/include;
 				USER_HEADER_SEARCH_PATHS = libmpdclient/output;
@@ -1237,7 +1202,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
@@ -1253,11 +1217,10 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/libmpdclient/output",
 				);
-				MARKETING_VERSION = "0.16.0-alpha";
+				MARKETING_VERSION = "0.15.2-alpha";
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.Persephone;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				SWIFT_OBJC_BRIDGING_HEADER = "Persephone/MPDClient/Extensions/Persephone-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
 				SYSTEM_HEADER_SEARCH_PATHS = Persephone/include;
 				USER_HEADER_SEARCH_PATHS = libmpdclient/output;

Persephone.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -6,8 +6,8 @@
         "repositoryURL": "https://github.com/krzyzanowskim/CryptoSwift",
         "state": {
           "branch": null,
-          "revision": "a44caef0550c346e0ab9172f7c9a3852c1833599",
+          "revision": "3a2acbb32ab68215ee1596ee6004da8e90c3721b",
-          "version": "1.3.0"
+          "version": "1.0.0"
         }
       },
       {
@@ -15,8 +15,8 @@
         "repositoryURL": "https://github.com/tonyarnold/Differ",
         "state": {
           "branch": null,
-          "revision": "dd5d4bfb1c27012d4790e877b29847d2ab9d989b",
+          "revision": "e2cca36e7258dd8add88ae46b5ea56509b066e21",
-          "version": "1.4.4"
+          "version": "1.4.3"
         }
       },
       {
@@ -24,8 +24,8 @@
         "repositoryURL": "https://github.com/PromiseKit/Foundation",
         "state": {
           "branch": null,
-          "revision": "1a276e598dac59489ed904887e0740fa75e571e0",
+          "revision": "ee06d95342a5007de2fffd898f4f35de026842ac",
-          "version": "3.3.4"
+          "version": "3.3.3"
         }
       },
       {
@@ -33,8 +33,8 @@
         "repositoryURL": "https://github.com/onevcat/Kingfisher.git",
         "state": {
           "branch": null,
-          "revision": "44bfa76787a0f07e4d5ae3304e9d4f631fd519bd",
+          "revision": "8ef6ca8b1b767ac2400762ed2f2bf75ddea3de5b",
-          "version": "5.13.0"
+          "version": "5.10.1"
         }
       },
       {
@@ -51,8 +51,8 @@
         "repositoryURL": "https://github.com/mxcl/PromiseKit",
         "state": {
           "branch": null,
-          "revision": "f14f16cc2602afec1030e4f492100d6d43dca544",
+          "revision": "4d8d1287d2e50c53a9f8430ffe88925292838c57",
-          "version": "6.13.1"
+          "version": "6.11.0"
         }
       },
       {

Persephone.xcodeproj/xcshareddata/xcschemes/Persephone.xcscheme

@@ -27,15 +27,6 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "E40786172110CE6E006887B1"
-            BuildableName = "Persephone.app"
-            BlueprintName = "Persephone"
-            ReferencedContainer = "container:Persephone.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
       <Testables>
          <TestableReference
             skipped = "NO">
@@ -58,6 +49,17 @@
             </BuildableReference>
          </TestableReference>
       </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "E40786172110CE6E006887B1"
+            BuildableName = "Persephone.app"
+            BlueprintName = "Persephone"
+            ReferencedContainer = "container:Persephone.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -79,6 +81,8 @@
             ReferencedContainer = "container:Persephone.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Release"

Persephone/Assets.xcassets/speakerDisabled.imageset/Contents.json

@@ -1,25 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "filename" : "speakerDisabled.png",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "filename" : "speakerDisabled@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  },
-  "properties" : {
-    "template-rendering-intent" : "template"
-  }
-}

Persephone/Assets.xcassets/speakerHigh.imageset/Contents.json

@@ -1,25 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "filename" : "speakerHigh.png",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "filename" : "speakerHigh@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  },
-  "properties" : {
-    "template-rendering-intent" : "template"
-  }
-}

Persephone/Assets.xcassets/speakerLow.imageset/Contents.json

@@ -1,25 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "filename" : "speakerLow.png",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "filename" : "speakerLow@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  },
-  "properties" : {
-    "template-rendering-intent" : "template"
-  }
-}

Persephone/Assets.xcassets/speakerMid.imageset/Contents.json

@@ -1,25 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "filename" : "speakerMid.png",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "filename" : "speakerMid@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  },
-  "properties" : {
-    "template-rendering-intent" : "template"
-  }
-}

Persephone/Assets.xcassets/speakerOff.imageset/Contents.json

@@ -1,25 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "filename" : "speakerOff.png",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "filename" : "speakerOff@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  },
-  "properties" : {
-    "template-rendering-intent" : "template"
-  }
-}

Persephone/Components/Browser/Album Browser/AlbumViewItem.swift

@@ -56,14 +56,10 @@ class AlbumViewItem: NSCollectionViewItem {
   }
 
   func setAlbumCover(_ album: Album) {
-    guard let song = album.mpdAlbum.firstSong
+    guard let imagePath = album.coverArtFilePath else { return }
-      else { return }
-
-    let provider = MPDAlbumArtImageDataProvider(
-      songUri: song.uriString,
-      cacheKey: album.hash
-    )
 
+    let imageURL = URL(fileURLWithPath: imagePath)
+    let provider = LocalFileImageDataProvider(fileURL: imageURL)
     albumCoverView.kf.setImage(
       with: .provider(provider),
       placeholder: NSImage.defaultCoverArt,
@@ -71,34 +67,7 @@ class AlbumViewItem: NSCollectionViewItem {
         .processor(DownsamplingImageProcessor(size: .albumListCoverSize)),
         .scaleFactor(2),
       ]
-    ) { result in
+    )
-      switch result {
-      case .success(let imageResult):
-        guard let imageData = imageResult.image.tiffRepresentation
-          else { return }
-        
-        let rawProvider = RawImageDataProvider(
-          data: imageData,
-          cacheKey: album.hash
-        )
-        
-        self.cacheSmallCover(provider: rawProvider)
-
-      case .failure(_):
-        break
-      }
-    }
-  }
-  
-  func cacheSmallCover(provider: ImageDataProvider) {
-    _ = KingfisherManager.shared.retrieveImage(
-      with: .provider(provider),
-      options: [
-        .memoryCacheExpiration(.never),
-        .processor(DownsamplingImageProcessor(size: .queueSongCoverSize)),
-        .scaleFactor(2),
-      ]
-    ) { result in }
   }
 
   func setAppearance(selected isSelected: Bool) {
@@ -120,18 +89,6 @@ class AlbumViewItem: NSCollectionViewItem {
     }
   }
 
-  func refreshAlbumArt() {
-    guard let album = album,
-      let mpdSong = album.mpdAlbum.firstSong
-      else { return }
-      
-    let song = Song(mpdSong: mpdSong)
-    
-    CoverArtService(song: song).refresh {
-      self.setAlbumCover(album)
-    }
-  }
-
   @IBAction func showAlbumDetail(_ sender: NSButton) {
     guard let album = album else { return }
 
@@ -164,8 +121,4 @@ class AlbumViewItem: NSCollectionViewItem {
 
     App.mpdClient.addAlbumToQueue(album: album.mpdAlbum, at: queueLength)
   }
-
-  @IBAction func refreshAlbumArtMenuAction(_ sender: NSMenuItem) {
-    refreshAlbumArt()
-  }
 }

Persephone/Components/Browser/Album Browser/AlbumViewItem.xib

@@ -35,7 +35,7 @@
                                 </shadow>
                                 <buttonCell key="cell" type="square" bezelStyle="shadowlessSquare" image="defaultCoverArt" imagePosition="only" alignment="center" lineBreakMode="truncatingTail" refusesFirstResponder="YES" state="on" transparent="YES" imageScaling="proportionallyUpOrDown" inset="2" id="t8A-Hz-L38">
                                     <behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
-                                    <font key="font" metaFont="system"/>
+                                    <font key="font" metaFont="label" size="13"/>
                                 </buttonCell>
                                 <connections>
                                     <action selector="showAlbumDetail:" target="-2" id="A4Q-gb-B45"/>
@@ -54,7 +54,7 @@
                 <textField identifier="albumTitle" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="KEh-NL-c2W">
                     <rect key="frame" x="8" y="28" width="142" height="17"/>
                     <textFieldCell key="cell" lineBreakMode="truncatingTail" title="Label" id="pDs-0t-e1j">
-                        <font key="font" metaFont="system"/>
+                        <font key="font" metaFont="label" size="13"/>
                         <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
                         <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                     </textFieldCell>
@@ -62,7 +62,7 @@
                 <textField identifier="albumArtist" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="5Uu-j1-qyT">
                     <rect key="frame" x="8" y="10" width="142" height="16"/>
                     <textFieldCell key="cell" lineBreakMode="truncatingTail" title="Label" id="yZn-e9-zyP">
-                        <font key="font" metaFont="system"/>
+                        <font key="font" metaFont="label" size="13"/>
                         <color key="textColor" name="secondaryLabelColor" catalog="System" colorSpace="catalog"/>
                         <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                     </textFieldCell>
@@ -98,13 +98,6 @@
                         <action selector="addAlbumToQueueMenuAction:" target="-2" id="6wW-oR-ykh"/>
                     </connections>
                 </menuItem>
-                <menuItem isSeparatorItem="YES" id="g9v-9R-xDB"/>
-                <menuItem title="Refresh album art" id="4Ld-db-wka">
-                    <modifierMask key="keyEquivalentModifierMask"/>
-                    <connections>
-                        <action selector="refreshAlbumArtMenuAction:" target="-2" id="wyO-Dn-k9r"/>
-                    </connections>
-                </menuItem>
             </items>
             <point key="canvasLocation" x="191" y="38"/>
         </menu>

Persephone/Components/Browser/Album Detail/AlbumDetailView.swift

@@ -116,27 +116,27 @@ class AlbumDetailView: NSViewController {
     App.mpdClient.getAlbumSongs(for: album.mpdAlbum) { [weak self] (mpdSongs: [MPDClient.MPDSong]) in
       guard let self = self else { return }
 
+      self.dataSource.setAlbumSongs(
+        mpdSongs.map { Song(mpdSong: $0) }
+      )
+
       DispatchQueue.main.async {
-        self.dataSource.setAlbumSongs(
-          mpdSongs.map { Song(mpdSong: $0) }
-        )
-
         self.albumTracksView.reloadData()
-
-        guard let mpdSong = album.mpdAlbum.firstSong
-          else { return }
-
-        self.getBigCoverArt(song: Song(mpdSong: mpdSong), album: album)
       }
+
+      guard let song = self.dataSource.albumSongs.first?.song ??
+        self.dataSource.albumSongs[1].song
+        else { return }
+
+      self.getBigCoverArt(song: song, album: album)
     }
   }
 
   func getBigCoverArt(song: Song, album: Album) {
-    let provider = MPDAlbumArtImageDataProvider(
+    guard let imagePath = album.coverArtFilePath else { return }
-      songUri: song.mpdSong.uriString,
-      cacheKey: album.hash
-    )
 
+    let imageURL = URL(fileURLWithPath: imagePath)
+    let provider = LocalFileImageDataProvider(fileURL: imageURL)
     albumCoverView.kf.setImage(
       with: .provider(provider),
       placeholder: NSImage.defaultCoverArt,
@@ -145,6 +145,18 @@ class AlbumDetailView: NSViewController {
         .scaleFactor(2),
       ]
     )
+
+    cacheSmallCover(provider: provider)
+  }
+  
+  func cacheSmallCover(provider: ImageDataProvider) {
+    _ = KingfisherManager.shared.retrieveImage(
+      with: .provider(provider),
+      options: [
+        .processor(DownsamplingImageProcessor(size: .queueSongCoverSize)),
+        .scaleFactor(2),
+      ]
+    ) { result in }
   }
 
   func setAppearance() {

Persephone/Components/Browser/Album Detail/AlbumTracksDataSource.swift

@@ -50,8 +50,7 @@ class AlbumTracksDataSource: NSObject, NSTableViewDataSource {
         type: .albumSongItem(song.mpdSong.uriString),
         title: song.title,
         artist: song.artist,
-        album: song.album.title,
+        cover: song.album.coverArtFilePath
-        uri: song.mpdSong.uriString
       ),
       ofType: .songPasteboardType
     )
@@ -70,11 +69,10 @@ class AlbumTracksDataSource: NSObject, NSTableViewDataSource {
     ) { draggingItem, index, stop in
       guard let item = draggingItem.item as? NSPasteboardItem,
         let draggedSong = item.draggedSong(forType: .songPasteboardType),
-        case let (title, artist, album, uri) = (
+        case let (title?, artist?, cover?) = (
           draggedSong.title,
           draggedSong.artist,
-          draggedSong.album,
+          draggedSong.cover
-          draggedSong.uri
         )
         else { return }
 
@@ -83,8 +81,7 @@ class AlbumTracksDataSource: NSObject, NSTableViewDataSource {
         let draggedSongView = DraggedSongView(
           title: title,
           artist: artist,
-          album: album,
+          cover: cover
-          uri: uri
         )
 
         component.contents = draggedSongView.view.image()

Persephone/Components/Preferences/CoverArtPrefsController.swift

@@ -7,12 +7,15 @@
 //
 
 import AppKit
-import Kingfisher
 
 class CoverArtPrefsController: NSViewController {
   override func viewDidLoad() {
     super.viewDidLoad()
 
+    if let mpdLibraryDir = App.store.state.preferencesState.mpdLibraryDir {
+      mpdLibraryDirField.stringValue = mpdLibraryDir
+    }
+
     if App.store.state.preferencesState.fetchMissingArtworkFromInternet {
       fetchMissingArtworkFromInternet.state = .on
     } else {
@@ -30,6 +33,12 @@ class CoverArtPrefsController: NSViewController {
     self.parent?.view.window?.title = title
   }
 
+  @IBAction func updateMpdLibraryDir(_ sender: NSTextField) {
+    App.store.dispatch(UpdateMPDLibraryDir(mpdLibraryDir: sender.stringValue))
+  }
+
+  @IBOutlet var mpdLibraryDirField: NSTextField!
+
   @IBAction func updateFetchMissingArtworkFromInternet(_ sender: NSButton) {
     App.store.dispatch(
       UpdateFetchMissingArtworkFromInternet(
@@ -38,10 +47,5 @@ class CoverArtPrefsController: NSViewController {
     )
   }
 
-  @IBAction func clearAlbumArtCache(_ sender: NSButton) {
-    KingfisherManager.shared.cache.clearDiskCache()
-    KingfisherManager.shared.cache.clearMemoryCache()
-  }
-  
   @IBOutlet var fetchMissingArtworkFromInternet: NSButton!
 }

Persephone/Components/Queue/CurrentCoverArtView.swift

@@ -17,23 +17,13 @@ class CurrentCoverArtView: NSImageView {
     App.store.subscribe(self) {
       $0.select { $0.playerState.currentSong }
     }
-    
-    NotificationCenter.default.addObserver(self, selector: #selector(didReloadAlbumArt), name: .didReloadAlbumArt, object: nil)
   }
 
-  @objc func didReloadAlbumArt() {
+  func setAlbumImage(_ album: Album) {
-    guard let song = App.store.state.playerState.currentSong
+    guard let imagePath = album.coverArtFilePath else { return }
-      else { return }
-    
-    setSongImage(song)
-  }
-
-  func setSongImage(_ song: Song) {
-    let provider = MPDAlbumArtImageDataProvider(
-      songUri: song.mpdSong.uriString,
-      cacheKey: song.album.hash
-    )
 
+    let imageURL = URL(fileURLWithPath: imagePath)
+    let provider = LocalFileImageDataProvider(fileURL: imageURL)
     kf.setImage(
       with: .provider(provider),
       placeholder: NSImage.defaultCoverArt,
@@ -54,6 +44,6 @@ extension CurrentCoverArtView: StoreSubscriber {
       return
     }
     
-    setSongImage(song)
+    setAlbumImage(song.album)
   }
 }

Persephone/Components/Queue/QueueDataSource.swift

@@ -44,8 +44,7 @@ class QueueDataSource: NSObject, NSOutlineViewDataSource {
         type: .queueItem(queueItem.queuePos),
         title: queueItem.song.title,
         artist: queueItem.song.artist,
-        album: queueItem.song.album.title,
+        cover: queueItem.song.album.coverArtFilePath
-        uri: queueItem.song.mpdSong.uriString
       ),
       ofType: .songPasteboardType
     )
@@ -129,11 +128,10 @@ class QueueDataSource: NSObject, NSOutlineViewDataSource {
       guard let item = draggingItem.item as? NSPasteboardItem,
         let data = item.data(forType: .songPasteboardType),
         let draggedSong = try? PropertyListDecoder().decode(DraggedSong.self, from: data),
-        case let (title, artist, album, uri) = (
+        case let (title?, artist?, cover?) = (
           draggedSong.title,
           draggedSong.artist,
-          draggedSong.album,
+          draggedSong.cover
-          draggedSong.uri
         )
         else { return }
 
@@ -142,8 +140,7 @@ class QueueDataSource: NSObject, NSOutlineViewDataSource {
         let draggedSongView = DraggedSongView(
           title: title,
           artist: artist,
-          album: album,
+          cover: cover
-          uri: uri
         )
 
         let view = draggedSongView.view

Persephone/Components/Queue/QueueSongCoverView.swift

@@ -60,14 +60,13 @@ class QueueSongCoverView: NSTableCellView {
   }
 
   func setSong(_ queueItem: QueueItem, queueIcon: NSImage?) {
-    let song = queueItem.song
+    guard let imagePath = queueItem.song.album.coverArtFilePath
+      else { return }
 
     isPlaying = queueItem.isPlaying
 
-    let provider = MPDAlbumArtImageDataProvider(
+    let imageURL = URL(fileURLWithPath: imagePath)
-      songUri: song.mpdSong.uriString,
+    let provider = LocalFileImageDataProvider(fileURL: imageURL)
-      cacheKey: song.album.hash
-    )
     
     queueSongCover.kf.setImage(
       with: .provider(provider),

Persephone/Components/Queue/QueueViewController.swift

@@ -24,7 +24,6 @@ class QueueViewController: NSViewController {
 
     NotificationCenter.default.addObserver(self, selector: #selector(didConnect), name: .didConnect, object: nil)
     NotificationCenter.default.addObserver(self, selector: #selector(willDisconnect), name: .willDisconnect, object: nil)
-    NotificationCenter.default.addObserver(self, selector: #selector(didReloadAlbumArt), name: .didReloadAlbumArt, object: nil)
 
     queueView.dataSource = dataSource
     queueView.columnAutoresizingStyle = .sequentialColumnAutoresizingStyle
@@ -63,10 +62,6 @@ class QueueViewController: NSViewController {
     }
   }
 
-  @objc func didReloadAlbumArt() {
-    queueView.reloadData()
-  }
-
   @IBAction func playTrack(_ sender: Any) {
     let queuePos = queueView.selectedRow
 

Persephone/Components/Shared/DraggedSongView.swift

@@ -16,14 +16,12 @@ class DraggedSongView: NSViewController {
   
   private let songTitle: String
   private let songArtist: String
-  private let songAlbum: String
+  private let songCover: String?
-  private let songUri: String
 
-  init(title: String, artist: String, album: String, uri: String) {
+  init(title: String, artist: String, cover: String? = nil) {
     songTitle = title
     songArtist = artist
-    songAlbum = album
+    songCover = cover
-    songUri = uri
 
     super.init(nibName: nil, bundle: nil)
   }
@@ -60,12 +58,10 @@ class DraggedSongView: NSViewController {
   }
   
   func setCoverArt() {
-    let mpdAlbum = MPDClient.MPDAlbum(title: songAlbum, artist: songArtist)
+    guard let imagePath = songCover else { return }
 
-    let provider = MPDAlbumArtImageDataProvider(
+    let imageURL = URL(fileURLWithPath: imagePath)
-      songUri: songUri,
+    let provider = LocalFileImageDataProvider(fileURL: imageURL)
-      cacheKey: Album(mpdAlbum: mpdAlbum).hash
-    )
     
     coverImage.kf.setImage(
       with: .provider(provider),

Persephone/Components/Shared/Extensions/NSImage.swift

@@ -16,9 +16,33 @@ extension NSImage {
   
   static let defaultCoverArt = NSImage(named: "defaultCoverArt")
 
-  static let speakerDisabled = NSImage(named: "speakerDisabled")
+  func toFitBox(size: NSSize) -> NSImage {
-  static let speakerOff = NSImage(named: "speakerOff")
+    var newSize: NSSize = NSSize.zero
-  static let speakerLow = NSImage(named: "speakerLow")
+    let aspectRatio = self.size.width / self.size.height
-  static let speakerMid = NSImage(named: "speakerMid")
+    let boxAspectRatio = size.width / size.height
-  static let speakerHigh = NSImage(named: "speakerHigh")
+
+    if aspectRatio > boxAspectRatio {
+      newSize = NSSize(width: size.width, height: size.width / aspectRatio)
+    } else {
+      newSize = NSSize(width: size.height * aspectRatio, height: size.height)
+    }
+
+    let newImage = NSImage(size: newSize)
+    newImage.lockFocus()
+    self.draw(in: newImage.alignmentRect)
+    newImage.unlockFocus()
+    return newImage
+  }
+
+  func jpegData(compressionQuality: CGFloat) -> Data? {
+    guard let image = cgImage(forProposedRect: nil, context: nil, hints: nil)
+      else { return nil }
+
+    let bitmapImageRep = NSBitmapImageRep(cgImage: image)
+
+    return bitmapImageRep.representation(
+      using: .jpeg,
+      properties: [.compressionFactor: compressionQuality]
+    )
+  }
 }

Persephone/Components/Shared/Extensions/Notification.swift

@@ -11,5 +11,4 @@ import Foundation
 extension Notification.Name {
   static let didConnect = Notification.Name("MPDClientDidConnect")
   static let willDisconnect = Notification.Name("MPDClientWillDisconnect")
-  static let didReloadAlbumArt = Notification.Name("MPDDidReloadAlbumArt")
 }

Persephone/Components/Shared/ImageDataProviders/MPDAlbumArtImageDataProvider.swift

@@ -1,34 +0,0 @@
-//
-//  MPDAlbumArtImageDataProvider.swift
-//  Persephone
-//
-//  Created by Daniel Barber on 2/1/20.
-//  Copyright © 2020 Dan Barber. All rights reserved.
-//
-
-import Foundation
-import Kingfisher
-
-public struct MPDAlbumArtImageDataProvider: ImageDataProvider {
-  let songUri: String
-
-  init(songUri: String, cacheKey: String) {
-    self.songUri = songUri
-    self.cacheKey = cacheKey
-  }
-
-  public var cacheKey: String
-
-  public func data(handler: @escaping (Result<Data, Error>) -> Void) {
-    App.mpdClient.fetchAlbumArt(songUri: songUri, imageData: nil) { imageData in
-      guard let imageData = imageData
-        else { return }
-
-      handler(.success(imageData))
-    }
-  }
-
-  public var contentURL: String? {
-    return songUri
-  }
-}

Persephone/Components/Shared/UserNotificationsController.swift

@@ -18,16 +18,14 @@ class UserNotificationsController {
   }
 
   func notifyTrack(_ state: Song?) {
-    guard let song = state,
+    guard let currentSong = state,
+      let coverArtFilePath = currentSong.album.coverArtFilePath,
       let status = App.mpdClient.status,
       status.state == .playing
       else { return }
 
-    let provider = MPDAlbumArtImageDataProvider(
+    let imageURL = URL(fileURLWithPath: coverArtFilePath)
-      songUri: song.mpdSong.uriString,
+    let provider = LocalFileImageDataProvider(fileURL: imageURL)
-      cacheKey: song.album.hash
-    )
-
     _ = KingfisherManager.shared.retrieveImage(
       with: .provider(provider),
       options: [
@@ -37,7 +35,7 @@ class UserNotificationsController {
     ) { result in
       switch result {
       case .success(let value):
-        SongNotifierService(song: song, image: value.image)
+        SongNotifierService(song: currentSong, image: value.image)
           .deliver()
       case .failure:
         break

Persephone/Components/VolumeControl/VolumeControlView.swift

@@ -1,45 +0,0 @@
-  //
-//  VolumeControlView.swift
-//  Persephone
-//
-//  Created by Daniel Barber on 2/16/20.
-//  Copyright © 2020 Dan Barber. All rights reserved.
-//
-
-import AppKit
-import ReSwift
-
-class VolumeControlView: NSViewController {
-  static let shared = VolumeControlView()
-  static let popover = NSPopover()
-  
-  var currentVolume: Int = 0
-
-  override func viewDidLoad() {
-    super.viewDidLoad()
-    
-    App.store.subscribe(self) {
-      $0.select { $0.playerState }
-    }
-  }
-  
-  @IBAction func volumeSliderAction(_ sender: NSSlider) {
-    let newVolume = sender.integerValue
-
-    if newVolume != currentVolume {
-      App.mpdClient.setVolume(to: newVolume)
-      currentVolume = newVolume
-    }
-  }
-  
-  @IBOutlet var volumeSlider: NSSlider!
-}
-  
-extension VolumeControlView: StoreSubscriber {
-  typealias StoreSubscriberStateType = PlayerState
-  
-  func newState(state: StoreSubscriberStateType) {
-    volumeSlider.integerValue = state.volume
-    currentVolume = state.volume
-  }
-}

Persephone/Components/VolumeControl/VolumeControlView.xib

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="15705" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
-    <dependencies>
-        <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="15705"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <objects>
-        <customObject id="-2" userLabel="File's Owner" customClass="VolumeControlView" customModule="Persephone" customModuleProvider="target">
-            <connections>
-                <outlet property="view" destination="Hz6-mo-xeY" id="0bl-1N-x8E"/>
-                <outlet property="volumeSlider" destination="E78-vZ-qV0" id="7qP-Fm-MDY"/>
-            </connections>
-        </customObject>
-        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
-        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
-        <customView id="Hz6-mo-xeY">
-            <rect key="frame" x="0.0" y="0.0" width="36" height="145"/>
-            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
-            <subviews>
-                <slider horizontalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="E78-vZ-qV0" userLabel="Volume Slider">
-                    <rect key="frame" x="9" y="12" width="19" height="121"/>
-                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
-                    <sliderCell key="cell" continuous="YES" alignment="left" maxValue="100" doubleValue="50" tickMarkPosition="right" sliderType="linear" id="22u-9w-IXT"/>
-                    <connections>
-                        <action selector="volumeSliderAction:" target="-2" id="1yh-vH-sgN"/>
-                    </connections>
-                </slider>
-            </subviews>
-            <point key="canvasLocation" x="-83" y="90.5"/>
-        </customView>
-    </objects>
-</document>

Persephone/Components/Window/Base.lproj/Main.storyboard

@@ -208,7 +208,7 @@
                                         <rect key="frame" x="0.0" y="14" width="153" height="24"/>
                                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                                         <segmentedCell key="cell" borderStyle="border" alignment="left" style="texturedRounded" trackingMode="momentary" id="EBk-sD-nG7">
-                                            <font key="font" metaFont="label" size="13"/>
+                                            <font key="font" metaFont="system"/>
                                             <segments>
                                                 <segment image="prevTrackButton" width="32" enabled="NO"/>
                                                 <segment image="playButton" width="48" enabled="NO" tag="1"/>
@@ -230,7 +230,7 @@
                                         <rect key="frame" x="16" y="14" width="55" height="17"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <textFieldCell key="cell" lineBreakMode="clipping" alignment="right" placeholderString="8:88:88" id="g0c-k5-wCA">
-                                            <font key="font" metaFont="label" size="13"/>
+                                            <font key="font" metaFont="system"/>
                                             <color key="textColor" name="tertiaryLabelColor" catalog="System" colorSpace="catalog"/>
                                             <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                         </textFieldCell>
@@ -257,7 +257,7 @@
                                         <rect key="frame" x="16" y="14" width="60" height="17"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <textFieldCell key="cell" lineBreakMode="clipping" alignment="left" placeholderString="-8:88:88" id="XUa-pD-s5c">
-                                            <font key="font" metaFont="label" size="13"/>
+                                            <font key="font" metaFont="system"/>
                                             <color key="textColor" name="tertiaryLabelColor" catalog="System" colorSpace="catalog"/>
                                             <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                         </textFieldCell>
@@ -277,9 +277,9 @@
                                     <button key="view" verticalHuggingPriority="750" id="E8L-uK-XT0">
                                         <rect key="frame" x="2" y="14" width="42" height="24"/>
                                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
-                                        <buttonCell key="cell" type="roundTextured" bezelStyle="texturedRounded" image="shuffleButton" imagePosition="overlaps" alignment="center" lineBreakMode="truncatingTail" borderStyle="border" inset="2" id="YNb-hd-ax8">
+                                        <buttonCell key="cell" type="roundTextured" bezelStyle="texturedRounded" image="shuffleButton" imagePosition="only" alignment="center" lineBreakMode="truncatingTail" borderStyle="border" inset="2" id="YNb-hd-ax8">
                                             <behavior key="behavior" pushIn="YES" changeContents="YES" lightByContents="YES"/>
-                                            <font key="font" metaFont="label" size="13"/>
+                                            <font key="font" metaFont="system"/>
                                         </buttonCell>
                                         <connections>
                                             <action selector="handleShuffleButton:" target="B8D-0N-5wS" id="THd-0g-fmb"/>
@@ -295,7 +295,7 @@
                                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                                         <buttonCell key="cell" type="roundTextured" bezelStyle="texturedRounded" image="repeatButton" imagePosition="only" alignment="center" lineBreakMode="truncatingTail" borderStyle="border" inset="2" id="1bu-vK-3Hb">
                                             <behavior key="behavior" pushIn="YES" changeContents="YES" lightByContents="YES"/>
-                                            <font key="font" metaFont="label" size="13"/>
+                                            <font key="font" metaFont="system"/>
                                         </buttonCell>
                                         <connections>
                                             <action selector="handleRepeatButton:" target="B8D-0N-5wS" id="EN2-u4-DNl"/>
@@ -308,7 +308,7 @@
                                         <rect key="frame" x="0.0" y="14" width="96" height="22"/>
                                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                                         <searchFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" borderStyle="bezel" usesSingleLineMode="YES" bezelStyle="round" id="F3N-3P-tS3">
-                                            <font key="font" metaFont="label" size="13"/>
+                                            <font key="font" metaFont="system"/>
                                             <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                                             <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                         </searchFieldCell>
@@ -317,20 +317,6 @@
                                         </connections>
                                     </searchField>
                                 </toolbarItem>
-                                <toolbarItem implicitItemIdentifier="01E8DA80-2BDE-49F9-B311-69876CF0AE8E" label="Volume" paletteLabel="Volume" image="speakerHigh" sizingBehavior="auto" id="cMg-Mj-j7q">
-                                    <nil key="toolTip"/>
-                                    <button key="view" verticalHuggingPriority="750" id="cfN-LI-Cab">
-                                        <rect key="frame" x="2" y="14" width="42" height="24"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
-                                        <buttonCell key="cell" type="roundTextured" bezelStyle="texturedRounded" image="speakerHigh" imagePosition="overlaps" alignment="center" borderStyle="border" imageScaling="proportionallyDown" inset="2" id="bJh-X9-7q0">
-                                            <behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
-                                            <font key="font" metaFont="label" size="13"/>
-                                        </buttonCell>
-                                        <connections>
-                                            <action selector="showVolumeControl:" target="B8D-0N-5wS" id="UoW-fa-jBM"/>
-                                        </connections>
-                                    </button>
-                                </toolbarItem>
                             </allowedToolbarItems>
                             <defaultToolbarItems>
                                 <toolbarItem reference="p3r-ty-Pxf"/>
@@ -343,8 +329,6 @@
                                 <toolbarItem reference="s1h-EC-nvL"/>
                                 <toolbarItem reference="5U7-UV-xn2"/>
                                 <toolbarItem reference="9ol-aR-mzv"/>
-                                <toolbarItem reference="cMg-Mj-j7q"/>
-                                <toolbarItem reference="mhg-16-CNM"/>
                                 <toolbarItem reference="FRe-rR-Ulo"/>
                             </defaultToolbarItems>
                         </toolbar>
@@ -361,7 +345,6 @@
                         <outlet property="trackProgressBar" destination="KMy-xf-rmN" id="a67-JU-cyQ"/>
                         <outlet property="trackRemaining" destination="9WZ-ij-lrb" id="0pH-d7-wvD"/>
                         <outlet property="transportControls" destination="EBk-sD-nG7" id="yOo-58-Fby"/>
-                        <outlet property="volumeState" destination="cfN-LI-Cab" id="hrE-SY-J9E"/>
                         <segue destination="fnD-7K-pHK" kind="relationship" relationship="window.shadowedContentViewController" id="fQQ-kB-KVc"/>
                     </connections>
                 </windowController>
@@ -426,7 +409,7 @@
                     <tabView key="tabView" type="noTabsNoBorder" id="6dC-M0-oC5">
                         <rect key="frame" x="0.0" y="0.0" width="418" height="300"/>
                         <autoresizingMask key="autoresizingMask"/>
-                        <font key="font" metaFont="label" size="13"/>
+                        <font key="font" metaFont="system"/>
                         <connections>
                             <outlet property="delegate" destination="zhe-qh-Mal" id="LUL-qN-JlP"/>
                         </connections>
@@ -446,47 +429,93 @@
             <objects>
                 <viewController title="Cover Art" id="3C9-vU-zjZ" userLabel="Cover Art" customClass="CoverArtPrefsController" customModule="Persephone" customModuleProvider="target" sceneMemberID="viewController">
                     <view key="view" id="PyK-v2-kus">
-                        <rect key="frame" x="0.0" y="0.0" width="420" height="103"/>
+                        <rect key="frame" x="0.0" y="0.0" width="524" height="168"/>
                         <autoresizingMask key="autoresizingMask"/>
                         <subviews>
+                            <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="zZn-Rm-e1f">
+                                <rect key="frame" x="53" y="129" width="104" height="16"/>
+                                <textFieldCell key="cell" lineBreakMode="clipping" title="Music Directory:" id="sPn-V6-CfK">
+                                    <font key="font" usesAppearanceFont="YES"/>
+                                    <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
+                                    <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                                </textFieldCell>
+                            </textField>
+                            <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="gDk-ca-eOa">
+                                <rect key="frame" x="162" y="125" width="288" height="21"/>
+                                <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" borderStyle="bezel" placeholderString="~/Music" drawsBackground="YES" id="7WZ-b7-GUs">
+                                    <font key="font" metaFont="system"/>
+                                    <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
+                                    <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                                </textFieldCell>
+                                <connections>
+                                    <action selector="updateMpdLibraryDir:" target="3C9-vU-zjZ" id="3Ta-fH-5Zh"/>
+                                </connections>
+                            </textField>
                             <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="pRL-MG-1Be">
-                                <rect key="frame" x="82" y="67" width="264" height="18"/>
+                                <rect key="frame" x="160" y="94" width="264" height="18"/>
-                                <constraints>
-                                    <constraint firstAttribute="width" constant="260" id="PJN-iZ-3RV"/>
-                                </constraints>
                                 <buttonCell key="cell" type="check" title="Fetch missing artwork from MusicBrainz" bezelStyle="regularSquare" imagePosition="left" enabled="NO" inset="2" id="LpD-Ew-HMd">
                                     <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
-                                    <font key="font" metaFont="label" size="13"/>
+                                    <font key="font" metaFont="system"/>
                                 </buttonCell>
                                 <connections>
                                     <action selector="updateFetchMissingArtworkFromInternet:" target="3C9-vU-zjZ" id="I7x-9V-xJr"/>
                                 </connections>
                             </button>
-                            <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="mXh-kY-tMC">
+                            <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="z1g-nP-ksw">
-                                <rect key="frame" x="78" y="21" width="185" height="32"/>
+                                <rect key="frame" x="160" y="63" width="264" height="18"/>
-                                <buttonCell key="cell" type="push" title="Clear album art cache..." bezelStyle="rounded" alignment="center" borderStyle="border" imageScaling="proportionallyDown" inset="2" id="l81-SG-7mf">
+                                <constraints>
-                                    <behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
+                                    <constraint firstAttribute="width" constant="260" id="gK0-aW-CJy"/>
-                                    <font key="font" metaFont="label" size="13"/>
+                                </constraints>
+                                <buttonCell key="cell" type="check" title="Save fetched artwork to music directory" bezelStyle="regularSquare" imagePosition="left" enabled="NO" inset="2" id="ZeZ-O4-vjS">
+                                    <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
+                                    <font key="font" metaFont="system"/>
                                 </buttonCell>
-                                <connections>
-                                    <action selector="clearAlbumArtCache:" target="3C9-vU-zjZ" id="tXg-rz-lvh"/>
-                                </connections>
                             </button>
+                            <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="xgS-Kg-8KR">
+                                <rect key="frame" x="162" y="26" width="144" height="21"/>
+                                <constraints>
+                                    <constraint firstAttribute="width" constant="144" id="DSX-th-Wn1"/>
+                                </constraints>
+                                <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" enabled="NO" sendsActionOnEndEditing="YES" borderStyle="bezel" placeholderString="folder.jpg" drawsBackground="YES" id="nKF-YI-xBL">
+                                    <font key="font" metaFont="system"/>
+                                    <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
+                                    <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                                </textFieldCell>
+                            </textField>
+                            <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="SmH-w6-5QI">
+                                <rect key="frame" x="37" y="30" width="119" height="16"/>
+                                <textFieldCell key="cell" lineBreakMode="clipping" enabled="NO" alignment="right" title="Cover art filename:" id="b4u-u7-iWD">
+                                    <font key="font" metaFont="system"/>
+                                    <color key="textColor" name="secondaryLabelColor" catalog="System" colorSpace="catalog"/>
+                                    <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                                </textFieldCell>
+                            </textField>
                         </subviews>
                         <constraints>
-                            <constraint firstItem="pRL-MG-1Be" firstAttribute="leading" secondItem="PyK-v2-kus" secondAttribute="leading" constant="84" id="81s-YL-o8A"/>
+                            <constraint firstItem="pRL-MG-1Be" firstAttribute="centerX" secondItem="z1g-nP-ksw" secondAttribute="centerX" id="0Ev-Ia-XBO"/>
-                            <constraint firstAttribute="bottom" secondItem="pRL-MG-1Be" secondAttribute="bottom" constant="69" id="L7b-jE-keG"/>
+                            <constraint firstItem="gDk-ca-eOa" firstAttribute="leading" secondItem="pRL-MG-1Be" secondAttribute="leading" id="1jd-wZ-a4Q"/>
-                            <constraint firstItem="mXh-kY-tMC" firstAttribute="leading" secondItem="pRL-MG-1Be" secondAttribute="leading" id="b9X-hO-aYJ"/>
+                            <constraint firstItem="pRL-MG-1Be" firstAttribute="leading" secondItem="z1g-nP-ksw" secondAttribute="leading" id="3tZ-Ub-RaT"/>
-                            <constraint firstAttribute="bottom" secondItem="mXh-kY-tMC" secondAttribute="bottom" constant="28" id="ras-nE-Oq8"/>
+                            <constraint firstItem="gDk-ca-eOa" firstAttribute="leading" secondItem="zZn-Rm-e1f" secondAttribute="trailing" constant="7" id="C0m-yx-gXh"/>
+                            <constraint firstItem="z1g-nP-ksw" firstAttribute="leading" secondItem="xgS-Kg-8KR" secondAttribute="leading" id="Dkv-ai-X2G"/>
+                            <constraint firstItem="xgS-Kg-8KR" firstAttribute="leading" secondItem="SmH-w6-5QI" secondAttribute="trailing" constant="8" symbolic="YES" id="KQk-nr-H8y"/>
+                            <constraint firstItem="zZn-Rm-e1f" firstAttribute="leading" secondItem="PyK-v2-kus" secondAttribute="leading" constant="55" id="OzK-MR-zuB"/>
+                            <constraint firstAttribute="bottom" secondItem="SmH-w6-5QI" secondAttribute="bottom" constant="30" id="aBY-Ny-jPe"/>
+                            <constraint firstItem="pRL-MG-1Be" firstAttribute="top" secondItem="gDk-ca-eOa" secondAttribute="bottom" constant="15" id="dKy-uC-r43"/>
+                            <constraint firstItem="xgS-Kg-8KR" firstAttribute="top" secondItem="z1g-nP-ksw" secondAttribute="bottom" constant="18" id="lfR-Im-bd4"/>
+                            <constraint firstAttribute="trailing" secondItem="gDk-ca-eOa" secondAttribute="trailing" constant="74" id="n8X-T2-tXA"/>
+                            <constraint firstAttribute="bottom" secondItem="xgS-Kg-8KR" secondAttribute="bottom" constant="26" id="oXZ-qo-HwX"/>
+                            <constraint firstItem="SmH-w6-5QI" firstAttribute="top" secondItem="zZn-Rm-e1f" secondAttribute="bottom" constant="83" id="qhC-mD-Bvw"/>
+                            <constraint firstItem="z1g-nP-ksw" firstAttribute="top" secondItem="pRL-MG-1Be" secondAttribute="bottom" constant="17" id="sTP-hk-zfU"/>
                         </constraints>
                     </view>
                     <connections>
                         <outlet property="fetchMissingArtworkFromInternet" destination="pRL-MG-1Be" id="Xcp-sb-iZm"/>
+                        <outlet property="mpdLibraryDirField" destination="gDk-ca-eOa" id="myi-BQ-0NS"/>
                     </connections>
                 </viewController>
                 <customObject id="KzD-E3-lpA" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="1407" y="-274.5"/>
+            <point key="canvasLocation" x="1459" y="-242"/>
         </scene>
         <!--View Controller-->
         <scene sceneID="VvW-vT-alQ">
@@ -499,7 +528,7 @@
                         <subviews>
                             <tabView type="noTabsNoBorder" initialItem="XgS-cX-SDH" translatesAutoresizingMaskIntoConstraints="NO" id="ARv-cj-xlz">
                                 <rect key="frame" x="0.0" y="0.0" width="478" height="558"/>
-                                <font key="font" metaFont="label" size="13"/>
+                                <font key="font" metaFont="system"/>
                                 <tabViewItems>
                                     <tabViewItem label="Albums" identifier="" id="XgS-cX-SDH">
                                         <view key="view" id="hB7-hN-SbB">
@@ -564,7 +593,7 @@
                                         <real key="minimum" value="0.0"/>
                                         <real key="maximum" value="65535"/>
                                     </numberFormatter>
-                                    <font key="font" metaFont="label" size="13"/>
+                                    <font key="font" metaFont="system"/>
                                     <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                                     <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                 </textFieldCell>
@@ -575,7 +604,7 @@
                             <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="kvB-99-zwY">
                                 <rect key="frame" x="76" y="61" width="80" height="16"/>
                                 <textFieldCell key="cell" lineBreakMode="clipping" alignment="right" title="Server Host:" id="AVi-g9-Irz">
-                                    <font key="font" metaFont="label" size="13"/>
+                                    <font key="font" metaFont="system"/>
                                     <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
                                     <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                 </textFieldCell>
@@ -586,7 +615,7 @@
                                     <constraint firstAttribute="width" constant="72" id="Of6-Ls-knP"/>
                                 </constraints>
                                 <textFieldCell key="cell" lineBreakMode="clipping" alignment="right" title="Server Port:" id="DgA-xT-2ir">
-                                    <font key="font" metaFont="label" size="13"/>
+                                    <font key="font" metaFont="system"/>
                                     <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
                                     <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                 </textFieldCell>
@@ -618,18 +647,18 @@
             <objects>
                 <viewController id="KIP-rq-4dM" customClass="QueueViewController" customModule="Persephone" customModuleProvider="target" sceneMemberID="viewController">
                     <splitView key="view" misplaced="YES" dividerStyle="thin" id="84I-w3-Mxl">
-                        <rect key="frame" x="0.0" y="0.0" width="329" height="498"/>
+                        <rect key="frame" x="0.0" y="0.0" width="329" height="543"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                         <subviews>
                             <scrollView borderType="none" autohidesScrollers="YES" horizontalLineScroll="42" horizontalPageScroll="10" verticalLineScroll="42" verticalPageScroll="10" usesPredominantAxisScrolling="NO" id="S3o-nF-NN7">
-                                <rect key="frame" x="0.0" y="0.0" width="329" height="198"/>
+                                <rect key="frame" x="0.0" y="0.0" width="329" height="217"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxY="YES"/>
                                 <clipView key="contentView" drawsBackground="NO" id="WI8-Pw-03L">
-                                    <rect key="frame" x="0.0" y="0.0" width="329" height="198"/>
+                                    <rect key="frame" x="0.0" y="0.0" width="329" height="217"/>
                                     <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                     <subviews>
                                         <outlineView verticalHuggingPriority="750" allowsExpansionToolTips="YES" columnAutoresizingStyle="lastColumnOnly" selectionHighlightStyle="sourceList" multipleSelection="NO" autosaveColumns="NO" rowHeight="42" rowSizeStyle="automatic" viewBased="YES" indentationMarkerFollowsCell="NO" outlineTableColumn="0Co-uF-CCB" id="jEJ-jg-fll">
-                                            <rect key="frame" x="0.0" y="0.0" width="329" height="198"/>
+                                            <rect key="frame" x="0.0" y="0.0" width="329" height="217"/>
                                             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                             <size key="intercellSpacing" width="3" height="0.0"/>
                                             <color key="backgroundColor" name="_sourceListBackgroundColor" catalog="System" colorSpace="catalog"/>
@@ -637,11 +666,12 @@
                                             <tableColumns>
                                                 <tableColumn identifier="songCoverColumn" width="43" minWidth="42" maxWidth="1000" id="0Co-uF-CCB" userLabel="Position">
                                                     <tableHeaderCell key="headerCell" lineBreakMode="truncatingTail" borderStyle="border">
+                                                        <font key="font" metaFont="message" size="11"/>
                                                         <color key="textColor" name="headerTextColor" catalog="System" colorSpace="catalog"/>
                                                         <color key="backgroundColor" name="headerColor" catalog="System" colorSpace="catalog"/>
                                                     </tableHeaderCell>
                                                     <textFieldCell key="dataCell" lineBreakMode="truncatingTail" selectable="YES" editable="YES" title="Text Cell" id="99v-Rb-3kv">
-                                                        <font key="font" metaFont="label" size="13"/>
+                                                        <font key="font" metaFont="system"/>
                                                         <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                                                         <color key="backgroundColor" name="controlBackgroundColor" catalog="System" colorSpace="catalog"/>
                                                     </textFieldCell>
@@ -682,11 +712,12 @@
                                                 </tableColumn>
                                                 <tableColumn identifier="songInfoColumn" width="213" minWidth="10" maxWidth="3.4028234663852886e+38" id="HP0-ty-PFY" userLabel="Song Info">
                                                     <tableHeaderCell key="headerCell" lineBreakMode="truncatingTail" borderStyle="border" alignment="left">
+                                                        <font key="font" metaFont="message" size="11"/>
                                                         <color key="textColor" name="headerTextColor" catalog="System" colorSpace="catalog"/>
                                                         <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                     </tableHeaderCell>
                                                     <textFieldCell key="dataCell" lineBreakMode="truncatingTail" selectable="YES" editable="YES" alignment="left" title="Text Cell" id="zb2-QK-DhK">
-                                                        <font key="font" metaFont="label" size="13"/>
+                                                        <font key="font" metaFont="system"/>
                                                         <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                                                         <color key="backgroundColor" name="controlBackgroundColor" catalog="System" colorSpace="catalog"/>
                                                     </textFieldCell>
@@ -707,7 +738,7 @@
                                                                 <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="i0h-bn-auJ" userLabel="Song Title View">
                                                                     <rect key="frame" x="1" y="23" width="211" height="16"/>
                                                                     <textFieldCell key="cell" lineBreakMode="truncatingTail" sendsActionOnEndEditing="YES" title="Song Title" id="ei8-1e-ErK">
-                                                                        <font key="font" metaFont="label" size="13"/>
+                                                                        <font key="font" metaFont="system"/>
                                                                         <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                                                                         <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
                                                                     </textFieldCell>
@@ -730,11 +761,12 @@
                                                 </tableColumn>
                                                 <tableColumn identifier="songDurationColumn" width="64" minWidth="64" maxWidth="64" id="8O6-ox-kx2" userLabel="Duration">
                                                     <tableHeaderCell key="headerCell" lineBreakMode="truncatingTail" borderStyle="border" alignment="left">
+                                                        <font key="font" metaFont="message" size="11"/>
                                                         <color key="textColor" name="headerTextColor" catalog="System" colorSpace="catalog"/>
                                                         <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                     </tableHeaderCell>
                                                     <textFieldCell key="dataCell" lineBreakMode="truncatingTail" selectable="YES" editable="YES" alignment="left" title="Text Cell" id="JOa-Mc-ceQ">
-                                                        <font key="font" metaFont="label" size="13"/>
+                                                        <font key="font" metaFont="system"/>
                                                         <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                                                         <color key="backgroundColor" name="controlBackgroundColor" catalog="System" colorSpace="catalog"/>
                                                     </textFieldCell>
@@ -751,7 +783,7 @@
                                                                         <constraint firstAttribute="height" constant="17" id="grB-CG-1vJ"/>
                                                                     </constraints>
                                                                     <textFieldCell key="cell" lineBreakMode="truncatingTail" sendsActionOnEndEditing="YES" alignment="right" title="88:88" id="JnJ-sF-vCP">
-                                                                        <font key="font" metaFont="label" size="13"/>
+                                                                        <font key="font" metaFont="system"/>
                                                                         <color key="textColor" name="secondaryLabelColor" catalog="System" colorSpace="catalog"/>
                                                                         <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
                                                                     </textFieldCell>
@@ -792,7 +824,7 @@
                                 </scroller>
                             </scrollView>
                             <customView misplaced="YES" id="iUb-eV-Qws">
-                                <rect key="frame" x="0.0" y="199" width="329" height="299"/>
+                                <rect key="frame" x="0.0" y="218" width="329" height="325"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                 <subviews>
                                     <imageView horizontalHuggingPriority="251" verticalHuggingPriority="251" horizontalCompressionResistancePriority="250" verticalCompressionResistancePriority="250" translatesAutoresizingMaskIntoConstraints="NO" id="Dw3-M5-tWY" customClass="CurrentCoverArtView" customModule="Persephone" customModuleProvider="target">
@@ -900,7 +932,6 @@
         <image name="prevTrackButton" width="17" height="17"/>
         <image name="repeatButton" width="17" height="17"/>
         <image name="shuffleButton" width="17" height="17"/>
-        <image name="speakerHigh" width="21" height="17"/>
         <image name="stopButton" width="17" height="17"/>
     </resources>
 </document>

Persephone/Components/Window/WindowController.swift

@@ -27,8 +27,6 @@ class WindowController: NSWindowController {
   @IBOutlet var shuffleState: NSButton!
   @IBOutlet var repeatState: NSButton!
 
-  @IBOutlet var volumeState: NSButton!
-
   @IBOutlet weak var searchQuery: NSSearchField!
 
   override func windowDidLoad() {
@@ -123,25 +121,6 @@ class WindowController: NSWindowController {
     trackRemaining.stringValue = time.formattedTime
   }
     
-  func setVolumeControlIcon(_ state: PlayerState) {
-    volumeState.isEnabled = state.volume != -1
-
-    switch state.volume {
-    case -1:
-      volumeState.image = .speakerDisabled
-    case 0..<5:
-      volumeState.image = .speakerOff
-    case 5..<40:
-      volumeState.image = .speakerLow
-    case 40..<70:
-      volumeState.image = .speakerMid
-    case 70...100:
-      volumeState.image = .speakerHigh
-    default:
-      break
-    }
-  }
-    
   @objc func willDisconnect() {
     DispatchQueue.main.async {
       App.store.dispatch(SetSearchQuery(searchQuery: ""))
@@ -197,16 +176,6 @@ class WindowController: NSWindowController {
   @IBAction func handleSearchQuery(_ sender: NSSearchField) {
     App.store.dispatch(SetSearchQuery(searchQuery: sender.stringValue))
   }
-  
-  @IBAction func showVolumeControl(_ sender: NSButton) {
-    VolumeControlView.popover.contentViewController = VolumeControlView.shared
-    VolumeControlView.popover.behavior = .transient
-    VolumeControlView.popover.show(
-      relativeTo: sender.bounds,
-      of: sender,
-      preferredEdge: .maxY
-    )
-  }
 }
 
 extension WindowController: NSWindowDelegate {
@@ -232,7 +201,6 @@ extension WindowController: StoreSubscriber {
       self.setShuffleRepeatState(state.playerState)
       self.setTrackProgressControls(state.playerState)
       self.setDatabaseUpdatingIndicator(state.uiState)
-      self.setVolumeControlIcon(state.playerState)
     }
   }
 }

Persephone/MPDClient/Extensions/MPDClient+Album.swift

@@ -74,8 +74,8 @@ extension MPDClient {
       let mpdAlbum = MPDAlbum(
         title: mpdSong.album.title,
         artist: mpdSong.artist,
-        firstSong: mpdSong,
+        date: mpdSong.date,
-        date: mpdSong.date
+        path: mpdSong.path
       )
       if (mpdAlbum != albums.last) {
         albums.append(mpdAlbum)

Persephone/MPDClient/Extensions/MPDClient+Command.swift

@@ -47,11 +47,6 @@ extension MPDClient {
         else { return }
       sendRepeatState(repeatState: repeatState)
 
-    case .setVolume:
-      guard let volume = userData["volume"] as? Int
-        else { return }
-      sendSetVolume(to: volume)
-
     // Database commands
     case .updateDatabase:
       sendUpdateDatabase()
@@ -124,22 +119,6 @@ extension MPDClient {
         else { return }
 
       albumSongs(for: album, callback: callback)
-      
-      // Song commands
-      case .fetchAlbumArt:
-        guard let songUri = userData["songUri"] as? String,
-          let offset = userData["offset"] as? Int32,
-          let callback = userData["callback"] as? (Data?) -> Void
-          else { return }
-      
-        let imageData = userData["imageData"] as? Data? ?? nil
-        
-        sendFetchAlbumArt(
-          forUri: songUri,
-          imageData: imageData,
-          offset: offset,
-          callback: callback
-        )
     }
     
   }
@@ -147,7 +126,6 @@ extension MPDClient {
   func enqueueCommand(
     command: MPDCommand,
     priority: BlockOperation.QueuePriority = .normal,
-    forceIdle: Bool = false,
     userData: Dictionary<String, Any> = [:]
   ) {
     guard isConnected else { return }
@@ -157,9 +135,8 @@ extension MPDClient {
     let commandOperation = BlockOperation() { [unowned self] in
       self.sendCommand(command: command, userData: userData)
 
-      self.idle(forceIdle)
+      self.idle()
     }
-
     commandOperation.queuePriority = priority
     commandQueue.addOperation(commandOperation)
   }

Persephone/MPDClient/Extensions/MPDClient+Idle.swift

@@ -11,81 +11,58 @@ import mpdclient
 
 extension MPDClient {
   func noIdle() {
-    do {
+    if isIdle {
-      idleLock.lock()
+      mpd_send_noidle(connection)
-      defer { idleLock.unlock() }
+      isIdle = false
-      if isIdle {
-        mpd_send_noidle(connection)
-        isIdle = false
-      }
     }
   }
 
-  func idle(_ force: Bool = false) {
+  func idle() {
-    let shouldIdle: Bool
+    if !self.isIdle && self.commandQueue.operationCount == 1 {
+      mpd_send_idle(self.connection)
+      self.isIdle = true
 
-    do {
+      let result = mpd_recv_idle(self.connection, true)
-      idleLock.lock()
+      self.handleIdleResult(result)
-      defer { idleLock.unlock() }
-      shouldIdle = (!isIdle && commandQueue.operationCount == 1) || force
-      if shouldIdle {
-        mpd_send_idle(connection)
-        self.isIdle = true
-      }
-    }
-
-    if shouldIdle {
-      let result = mpd_recv_idle(connection, true)
-      handleIdleResult(result)
     }
   }
 
   func handleIdleResult(_ result: mpd_idle) {
+    isIdle = false
+    
     let mpdIdle = MPDIdle(rawValue: result.rawValue)
-    let wasIdle: Bool
 
-    do {
+    if mpdIdle.contains(.database) {
-      idleLock.lock()
+      self.fetchAllAlbums()
-      defer { idleLock.unlock() }
-      wasIdle = isIdle
-      isIdle = false
     }
+    if mpdIdle.contains(.queue) {
+      self.fetchQueue()
+      self.fetchStatus()
 
-    if wasIdle {
+      self.delegate?.didUpdateQueue(mpdClient: self, queue: self.queue)
-      if mpdIdle.contains(.database) {
+      if let status = self.status {
-        self.fetchAllAlbums()
+        self.delegate?.didUpdateQueuePos(mpdClient: self, song: status.song)
       }
-      if mpdIdle.contains(.queue) {
+    }
-        self.fetchQueue()
+    if mpdIdle.contains(.player) || mpdIdle.contains(.options) {
-        self.fetchStatus()
+      self.fetchStatus()
 
-        self.delegate?.didUpdateQueue(mpdClient: self, queue: self.queue)
+      if let status = self.status {
-        if let status = self.status {
+        self.delegate?.didUpdateStatus(mpdClient: self, status: status)
-          self.delegate?.didUpdateQueuePos(mpdClient: self, song: status.song)
+        self.delegate?.didUpdateQueuePos(mpdClient: self, song: status.song)
-        }
       }
-      if mpdIdle.contains(.player) ||
+    }
-         mpdIdle.contains(.options) ||
+    if mpdIdle.contains(.update) {
-         mpdIdle.contains(.mixer) {
+      self.fetchStatus()
-        self.fetchStatus()
 
-        if let status = self.status {
+      if self.status?.updating ?? false {
-          self.delegate?.didUpdateStatus(mpdClient: self, status: status)
+        self.delegate?.willStartDatabaseUpdate(mpdClient: self)
-          self.delegate?.didUpdateQueuePos(mpdClient: self, song: status.song)
+      } else {
-        }
+        self.delegate?.didFinishDatabaseUpdate(mpdClient: self)
-      }
-      if mpdIdle.contains(.update) {
-        self.fetchStatus()
-
-        if self.status?.updating ?? false {
-          self.delegate?.willStartDatabaseUpdate(mpdClient: self)
-        } else {
-          self.delegate?.didFinishDatabaseUpdate(mpdClient: self)
-        }
-      }
-      if !mpdIdle.isEmpty {
-        self.idle()
       }
     }
+    if !mpdIdle.isEmpty {
+      self.idle()
+    }
   }
 }

Persephone/MPDClient/Extensions/MPDClient+Mixer.swift

@@ -1,24 +0,0 @@
-//
-//  MPDClient+Mixer.swift
-//  Persephone
-//
-//  Created by Daniel Barber on 2/16/20.
-//  Copyright © 2020 Dan Barber. All rights reserved.
-//
-
-import Foundation
-import mpdclient
-
-extension MPDClient {
-  func setVolume(to volume: Int) {
-    enqueueCommand(
-      command: .setVolume,
-      priority: .high,
-      userData: ["volume": volume]
-    )
-  }
-  
-  func sendSetVolume(to volume: Int) {
-    mpd_run_set_volume(connection, UInt32(volume))
-  }
-}

Persephone/MPDClient/Extensions/MPDClient+Queue.swift

@@ -19,51 +19,27 @@ extension MPDClient {
   }
 
   func playTrack(at queuePos: Int) {
-    enqueueCommand(
+    enqueueCommand(command: .playTrack, userData: ["queuePos": queuePos])
-      command: .playTrack,
-      forceIdle: true,
-      userData: ["queuePos": queuePos]
-    )
   }
 
   func appendSong(_ song: MPDSong) {
-    enqueueCommand(
+    enqueueCommand(command: .appendSong, userData: ["song": song])
-      command: .appendSong,
-      forceIdle: true,
-      userData: ["song": song]
-    )
   }
 
   func removeSong(at queuePos: Int) {
-    enqueueCommand(
+    enqueueCommand(command: .removeSong, userData: ["queuePos": queuePos])
-      command: .removeSong,
-      forceIdle: true,
-      userData: ["queuePos": queuePos]
-    )
   }
 
   func moveSongInQueue(at queuePos: Int, to newQueuePos: Int) {
-    enqueueCommand(
+    enqueueCommand(command: .moveSongInQueue, userData: ["oldQueuePos": queuePos, "newQueuePos": newQueuePos])
-      command: .moveSongInQueue,
-      forceIdle: true,
-      userData: ["oldQueuePos": queuePos, "newQueuePos": newQueuePos]
-    )
   }
 
   func addSongToQueue(songUri: String, at queuePos: Int) {
-    enqueueCommand(
+    enqueueCommand(command: .addSongToQueue, userData: ["uri": songUri, "queuePos": queuePos])
-      command: .addSongToQueue,
-      forceIdle: true,
-      userData: ["uri": songUri, "queuePos": queuePos]
-    )
   }
 
   func addAlbumToQueue(album: MPDAlbum, at queuePos: Int) {
-    enqueueCommand(
+    enqueueCommand(command: .addAlbumToQueue, userData: ["album": album, "queuePos": queuePos])
-      command: .addAlbumToQueue,
-      forceIdle: true,
-      userData: ["album": album, "queuePos": queuePos]
-    )
   }
 
   func sendPlayTrack(at queuePos: Int) {

Persephone/MPDClient/Extensions/MPDClient+Songs.swift

@@ -10,80 +10,19 @@ import Foundation
 import mpdclient
 
 extension MPDClient {
-  func fetchAlbumArt(
-    songUri: String,
-    imageData: Data?,
-    offset: Int32 = 0,
-    callback: @escaping (Data?) -> Void
-  ) {
-    enqueueCommand(
-      command: .fetchAlbumArt,
-      priority: .low,
-      userData: [
-        "songUri": songUri,
-        "callback": callback,
-        "imageData": imageData as Any,
-        "offset": offset,
-      ]
-    )
-  }
-  
   func searchSongs(_ terms: [MPDClient.MPDTag: String]) -> [MPDSong] {
     var songs: [MPDSong] = []
 
-    mpd_search_db_songs(connection, true)
+    mpd_search_db_songs(self.connection, true)
     for (tag, term) in terms {
-      mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT, tag.mpdTag(), term)
+      mpd_search_add_tag_constraint(self.connection, MPD_OPERATOR_DEFAULT, tag.mpdTag(), term)
     }
-    mpd_search_commit(connection)
+    mpd_search_commit(self.connection)
 
-    while let song = mpd_recv_song(connection) {
+    while let song = mpd_recv_song(self.connection) {
       songs.append(MPDSong(song))
     }
 
     return songs
   }
-  
-  func sendFetchAlbumArt(
-    forUri songUri: String,
-    imageData: Data?,
-    offset: Int32,
-    callback: @escaping (Data?) -> Void
-  ) -> Void {
-    var size: Int?
-    
-    mpd_send_albumart(connection, songUri, String(offset))
-    
-    guard let sizePair = mpd_recv_pair(connection) else {
-      mpd_connection_clear_error(connection)
-      return
-    }
-    size = Int(MPDPair(sizePair).value)
-    mpd_return_pair(connection, sizePair)
-
-    var data = imageData ?? Data(count: size!)
-          
-    let binaryPair = MPDPair(mpd_recv_pair(connection))
-    let chunkSize = Int(binaryPair.value)!
-    mpd_return_pair(connection, binaryPair.pair)
-    
-    _ = data[offset...].withUnsafeMutableBytes { (pointer) in
-      mpd_recv_binary(connection, pointer.baseAddress, chunkSize)
-    }
-    
-    guard mpd_response_finish(connection) else { return }
-    
-    let newOffset = offset + Int32(chunkSize)
-    
-    if newOffset < size! {
-      fetchAlbumArt(
-        songUri: songUri,
-        imageData: data,
-        offset: newOffset,
-        callback: callback
-      )
-    } else {
-      callback(data)
-    }
-  }
 }

Persephone/MPDClient/Extensions/MPDClient+Transport.swift

@@ -11,42 +11,24 @@ import mpdclient
 
 extension MPDClient {
   func playPause() {
-    enqueueCommand(
+    enqueueCommand(command: .playPause)
-      command: .playPause,
-      priority: .high,
-      forceIdle: true
-    )
   }
 
   func stop() {
-    enqueueCommand(
+    enqueueCommand(command: .stop)
-      command: .stop,
-      priority: .high,
-      forceIdle: true
-    )
   }
 
   func prevTrack() {
-    enqueueCommand(
+    enqueueCommand(command: .prevTrack)
-      command: .prevTrack,
-      priority: .high,
-      forceIdle: true
-    )
   }
 
   func nextTrack() {
-    enqueueCommand(
+    enqueueCommand(command: .nextTrack)
-      command: .nextTrack,
-      priority: .high,
-      forceIdle: true
-    )
   }
 
   func seekCurrentSong(timeInSeconds: Float) {
     enqueueCommand(
       command: .seekCurrentSong,
-      priority: .high,
-      forceIdle: true,
       userData: ["timeInSeconds": timeInSeconds]
     )
   }
@@ -54,8 +36,6 @@ extension MPDClient {
   func setShuffleState(shuffleState: Bool) {
     enqueueCommand(
       command: .setShuffleState,
-      priority: .high,
-      forceIdle: true,
       userData: ["shuffleState": shuffleState]
     )
   }
@@ -63,8 +43,6 @@ extension MPDClient {
   func setRepeatState(repeatState: Bool) {
     enqueueCommand(
       command: .setRepeatState,
-      priority: .high,
-      forceIdle: true,
       userData: ["repeatState": repeatState]
     )
   }

Persephone/MPDClient/Extensions/MPDClientWrapper.c

@@ -1,15 +0,0 @@
-//
-//  MPDClientWrapper.c
-//  Persephone
-//
-//  Created by Daniel Barber on 1/31/20.
-//  Copyright © 2020 Dan Barber. All rights reserved.
-//
-
-#include "MPDClientWrapper.h"
-
-int
-mpd_send_albumart(struct mpd_connection *connection, const char * uri, const char * offset)
-{
-  return mpd_send_command(connection, "albumart", uri, offset, NULL);
-}

Persephone/MPDClient/Extensions/MPDClientWrapper.h

@@ -1,12 +0,0 @@
-//
-//  MPDClientWrapper.h
-//  Persephone
-//
-//  Created by Daniel Barber on 1/31/20.
-//  Copyright © 2020 Dan Barber. All rights reserved.
-//
-
-#include <mpd/client.h>
-
-int
-mpd_send_albumart(struct mpd_connection *connection, const char * uri, const char * offset);

Persephone/MPDClient/Extensions/Persephone-Bridging-Header.h

@@ -1,5 +0,0 @@
-//
-//  Use this file to import your target's public headers that you would like to expose to Swift.
-//
-
-#import "MPDClientWrapper.h"

Persephone/MPDClient/MPDClient.swift

@@ -22,8 +22,6 @@ class MPDClient {
 
   let commandQueue = OperationQueue()
 
-  let idleLock = NSLock()
-
   init(withDelegate delegate: MPDClientDelegate?) {
     commandQueue.maxConcurrentOperationCount = 1
     self.delegate = delegate

Persephone/MPDClient/Models/MPDAlbum.swift

@@ -12,8 +12,8 @@ extension MPDClient {
   struct MPDAlbum: Equatable {
     let title: String
     let artist: String
-    var firstSong: MPDSong?
     var date: String?
+    var path: String?
 
     static func == (lhs: MPDAlbum, rhs: MPDAlbum) -> Bool {
       return lhs.title == rhs.title &&

Persephone/MPDClient/Models/MPDCommand.swift

@@ -23,8 +23,6 @@ extension MPDClient {
     case setShuffleState
     case setRepeatState
 
-    case setVolume
-
     // Database commands
     case updateDatabase
 
@@ -50,8 +48,5 @@ extension MPDClient {
     case playAlbum
     case getAlbumFirstSong
     case getAlbumSongs
-    
-    // Song commands
-    case fetchAlbumArt
   }
 }

Persephone/MPDClient/Models/MPDSong.swift

@@ -37,7 +37,8 @@ extension MPDClient {
       return MPDAlbum(
         title: getTag(.album),
         artist: artist,
-        date: date
+        date: date,
+        path: path
       )
     }
 
@@ -53,6 +54,11 @@ extension MPDClient {
       return getTag(.date)
     }
 
+    var path: String {
+      return NSString(string: uriString)
+        .deletingLastPathComponent
+    }
+
     func getTag(_ tagType: MPDTag) -> String {
       guard let tag = mpd_song_get_tag(song, tagType.mpdTag(), 0)
         else { return "" }

Persephone/MPDClient/Models/MPDStatus.swift

@@ -58,10 +58,6 @@ extension MPDClient {
       return mpd_status_get_repeat(status)
     }
 
-    var volume: Int {
-      return Int(mpd_status_get_volume(status))
-    }
-
     var updating: Bool {
       let updating = mpd_status_get_update_id(status)
 

Persephone/Models/Album.swift

@@ -32,6 +32,29 @@ struct Album {
   var hash: String {
     return "\(title) - \(artist)".sha1()
   }
+
+  var coverArtFilenames: [String] {
+    return [
+      "cover.jpg",
+      "folder.jpg",
+      "\(artist) - \(title).jpg",
+      "cover.png",
+      "folder.png",
+      "\(artist) - \(title ).png",
+    ]
+  }
+
+  var coverArtFilePath: String? {
+    let musicDir = App.store.state.preferencesState.expandedMpdLibraryDir
+    guard let albumPath = mpdAlbum.path else { return nil }
+
+    return coverArtFilenames
+      .lazy
+      .map { "\(musicDir)/\(albumPath)/\($0)" }
+      .first {
+        FileManager.default.fileExists(atPath: $0)
+      }
+  }
 }
 
 extension Album: Equatable {

Persephone/Models/DraggedSong.swift

@@ -8,8 +8,7 @@
 
 struct DraggedSong: Codable {
   var type: DraggedSongType
-  var title: String
+  var title: String?
-  var artist: String
+  var artist: String?
-  var album: String
+  var cover: String?
-  var uri: String
 }

Persephone/Operations/CoverArtQueue.swift

@@ -0,0 +1,23 @@
+//
+//  CoverArtQueue.swift
+//  Persephone
+//
+//  Created by Daniel Barber on 2019/2/26.
+//  Copyright © 2019 Dan Barber. All rights reserved.
+//
+
+import AppKit
+
+class CoverArtQueue {
+  static let shared = CoverArtQueue()
+
+  let queue = DispatchQueue(label: "CoverArtQueue")
+  var lastDispatchedTime = DispatchTime(uptimeNanoseconds: 0) - 1
+
+  func addToQueue(workItem: DispatchWorkItem) {
+    let dispatchTime = max(lastDispatchedTime + 1, DispatchTime(uptimeNanoseconds: 0))
+    lastDispatchedTime = dispatchTime
+
+    queue.asyncAfter(deadline: dispatchTime, execute: workItem)
+  }
+}

Persephone/Services/CoverArtService.swift

@@ -1,83 +0,0 @@
-//
-//  CoverArtService.swift
-//  Persephone
-//
-//  Created by Daniel Barber on 2/3/20.
-//  Copyright © 2020 Dan Barber. All rights reserved.
-//
-
-import Foundation
-import PromiseKit
-import Kingfisher
-
-struct CoverArtService {
-  let song: Song
-  let provider: MPDAlbumArtImageDataProvider
-  
-  init(song: Song) {
-    self.song = song
-
-    provider = MPDAlbumArtImageDataProvider(
-      songUri: song.mpdSong.uriString,
-      cacheKey: song.album.hash
-    )
-  }
-  
-  func refreshAlbumListArt() -> Promise<Any> {
-    return Promise<Any> { seal in
-      _ = KingfisherManager.shared.retrieveImage(
-        with: .provider(provider),
-        options: [
-          .forceRefresh,
-          .memoryCacheExpiration(.never),
-          .processor(DownsamplingImageProcessor(size: .albumListCoverSize)),
-          .scaleFactor(2),
-        ]
-      ) { result in
-        seal.fulfill(result)
-      }
-    }
-  }
-  
-  func refreshCurrentlyPlayingArt() -> Promise<Any> {
-    return Promise<Any> { seal in
-      _ = KingfisherManager.shared.retrieveImage(
-        with: .provider(provider),
-        options: [
-          .forceRefresh,
-          .memoryCacheExpiration(.never),
-          .processor(DownsamplingImageProcessor(size: .currentlyPlayingCoverSize)),
-          .scaleFactor(2),
-          .callbackQueue(.mainAsync)
-        ]
-      ) { result in
-        seal.fulfill(result)
-      }
-    }
-  }
-  
-  func refreshQueueSongArt() -> Promise<Any> {
-    return Promise<Any> { seal in
-      _ = KingfisherManager.shared.retrieveImage(
-        with: .provider(provider),
-        options: [
-          .forceRefresh,
-          .memoryCacheExpiration(.never),
-          .processor(DownsamplingImageProcessor(size: .queueSongCoverSize)),
-          .scaleFactor(2),
-        ]
-      ) { result in
-        seal.fulfill(result)
-      }
-    }
-  }
-  
-  func refresh(callback: @escaping () -> Void?) {
-    _ = firstly {
-      when(fulfilled: refreshAlbumListArt(), refreshQueueSongArt(), refreshCurrentlyPlayingArt())
-    }.done { _, _, _ in
-      NotificationCenter.default.post(name: .didReloadAlbumArt, object: nil)
-      callback()
-    }
-  }
-}

Persephone/State/Actions/PlayerActions.swift

@@ -20,7 +20,3 @@ struct UpdateElapsedTimeAction: Action {
 struct UpdateStatusAction: Action {
   var status: MPDClient.MPDStatus
 }
-
-struct UpdateVolumeAction: Action {
-  var volume: Int
-}

Persephone/State/Actions/PreferencesActions.swift

@@ -16,6 +16,10 @@ struct UpdateServerPort: Action {
   var port: Int?
 }
 
+struct UpdateMPDLibraryDir: Action {
+  var mpdLibraryDir: String?
+}
+
 struct UpdateFetchMissingArtworkFromInternet: Action {
   var fetchMissingArtworkFromInternet: Bool
 }

Persephone/State/PlayerState.swift

@@ -17,19 +17,16 @@ struct PlayerState: StateType {
   var shuffleState: Bool = false
   var repeatState: Bool = false
 
-  var volume: Int = 0
-
   var totalTime: UInt?
   var elapsedTimeMs: UInt?
 }
 
 extension PlayerState: Equatable {
   static func == (lhs: PlayerState, rhs: PlayerState) -> Bool {
-    return lhs.state == rhs.state &&
+    return (lhs.state == rhs.state) &&
-      lhs.totalTime == rhs.totalTime &&
+      (lhs.totalTime == rhs.totalTime) &&
-      lhs.elapsedTimeMs == rhs.elapsedTimeMs &&
+      (lhs.elapsedTimeMs == rhs.elapsedTimeMs) &&
-      lhs.shuffleState == rhs.shuffleState &&
+      (lhs.shuffleState == rhs.shuffleState) &&
-      lhs.repeatState == rhs.repeatState &&
+      (lhs.repeatState == rhs.repeatState)
-      lhs.volume == rhs.volume
   }
 }

Persephone/State/PreferencesState.swift

@@ -13,6 +13,17 @@ struct PreferencesState: StateType, Equatable {
   let preferences = UserDefaults.standard
 
   var mpdServer: MPDServer
+  let mpdLibraryDirDefault = "~/Music"
+
+  var mpdLibraryDir: String?
+
+  var mpdLibraryDirOrDefault: String {
+    return mpdLibraryDir ?? mpdLibraryDirDefault
+  }
+
+  var expandedMpdLibraryDir: String {
+    return NSString(string: mpdLibraryDirOrDefault).expandingTildeInPath
+  }
 
   var fetchMissingArtworkFromInternet: Bool
 
@@ -21,6 +32,7 @@ struct PreferencesState: StateType, Equatable {
       host: preferences.string(forKey: "mpdHost"),
       port: preferences.value(forKey: "mpdPort") as? Int
     )
+    self.mpdLibraryDir = preferences.string(forKey: "mpdLibraryDir")
     self.fetchMissingArtworkFromInternet = preferences.bool(
       forKey: "fetchMissingArtworkFromInternet"
     )
@@ -33,6 +45,7 @@ struct PreferencesState: StateType, Equatable {
     } else {
       preferences.removeObject(forKey: "mpdPort")
     }
+    preferences.set(mpdLibraryDir, forKey: "mpdLibraryDir")
     preferences.set(fetchMissingArtworkFromInternet, forKey: "fetchMissingArtworkFromInternet")
   }
 }

Persephone/State/Reducers/PlayerReducer.swift

@@ -20,7 +20,6 @@ func playerReducer(action: Action, state: PlayerState?) -> PlayerState {
     state.elapsedTimeMs = action.status.elapsedTimeMs
     state.shuffleState = action.status.shuffleState
     state.repeatState = action.status.repeatState
-    state.volume = action.status.volume
 
     if state.state == .playing {
       App.trackTimer.start(elapsedTimeMs: state.elapsedTimeMs)

Persephone/State/Reducers/PreferencesReducer.swift

@@ -20,6 +20,9 @@ func preferencesReducer(action: Action, state: PreferencesState?) -> Preferences
   case let action as UpdateServerPort:
     state.mpdServer.port = action.port
 
+  case let action as UpdateMPDLibraryDir:
+    state.mpdLibraryDir = action.mpdLibraryDir
+
   case is SavePreferences:
     state.save()