We don't need this container view

* Add menu options to connect/disconnect
* Add option to attempt reconnection on fatal error
* Add ability to reset connection to MPDClient

Persephone.xcodeproj/project.pbxproj

@@ -101,6 +101,7 @@
 		E4B11BC02275EE150075461B /* QueueActions.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4B11BBF2275EE150075461B /* QueueActions.swift */; };
 		E4B11BC22275EE410075461B /* AlbumListActions.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4B11BC12275EE410075461B /* AlbumListActions.swift */; };
 		E4B3DF6523D66A4400728F6B /* QueueSongCoverView.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4B3DF6423D66A4400728F6B /* QueueSongCoverView.swift */; };
+		E4B46F8F2402E89800152157 /* MPDError.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4B46F8E2402E89800152157 /* MPDError.swift */; };
 		E4B5AE7E22F4C49600CCEC65 /* MPDServerDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4B5AE7D22F4C49600CCEC65 /* MPDServerDelegate.swift */; };
 		E4BB7F8F23E5E7BC00906E2F /* MPDAlbumArtImageDataProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4BB7F8E23E5E7BC00906E2F /* MPDAlbumArtImageDataProvider.swift */; };
 		E4BB7F9323E9150A00906E2F /* CoverArtService.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4BB7F9223E9150A00906E2F /* CoverArtService.swift */; };
@@ -120,6 +121,9 @@
 		E4F26F7723411AE300D45FF9 /* ArtistListActions.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F26F7623411AE300D45FF9 /* ArtistListActions.swift */; };
 		E4F26F7923411B1500D45FF9 /* ArtistReducer.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F26F7823411B1500D45FF9 /* ArtistReducer.swift */; };
 		E4F26F7B23411D5400D45FF9 /* MPDClient+Artist.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F26F7A23411D5400D45FF9 /* MPDClient+Artist.swift */; };
+		E4F2EFEE24076A2700198159 /* ServerState.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F2EFED24076A2700198159 /* ServerState.swift */; };
+		E4F2EFF024076B0900198159 /* ServerActions.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F2EFEF24076B0900198159 /* ServerActions.swift */; };
+		E4F2EFF224076B5E00198159 /* ServerReducer.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F2EFF124076B5E00198159 /* ServerReducer.swift */; };
 		E4F6B460221E119B00ACF42A /* QueueDataSource.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F6B45F221E119B00ACF42A /* QueueDataSource.swift */; };
 		E4F6B463221E125900ACF42A /* QueueItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F6B462221E125900ACF42A /* QueueItem.swift */; };
 		E4F6B467221E233200ACF42A /* AlbumDataSource.swift in Sources */ = {isa = PBXBuildFile; fileRef = E4F6B466221E233200ACF42A /* AlbumDataSource.swift */; };
@@ -300,6 +304,7 @@
 		E4B11BBF2275EE150075461B /* QueueActions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QueueActions.swift; sourceTree = "<group>"; };
 		E4B11BC12275EE410075461B /* AlbumListActions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AlbumListActions.swift; sourceTree = "<group>"; };
 		E4B3DF6423D66A4400728F6B /* QueueSongCoverView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QueueSongCoverView.swift; sourceTree = "<group>"; };
+		E4B46F8E2402E89800152157 /* MPDError.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MPDError.swift; sourceTree = "<group>"; };
 		E4B5AE7D22F4C49600CCEC65 /* MPDServerDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MPDServerDelegate.swift; sourceTree = "<group>"; };
 		E4BB7F8E23E5E7BC00906E2F /* MPDAlbumArtImageDataProvider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MPDAlbumArtImageDataProvider.swift; sourceTree = "<group>"; };
 		E4BB7F9223E9150A00906E2F /* CoverArtService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CoverArtService.swift; sourceTree = "<group>"; };
@@ -320,6 +325,9 @@
 		E4F26F7623411AE300D45FF9 /* ArtistListActions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ArtistListActions.swift; sourceTree = "<group>"; };
 		E4F26F7823411B1500D45FF9 /* ArtistReducer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ArtistReducer.swift; sourceTree = "<group>"; };
 		E4F26F7A23411D5400D45FF9 /* MPDClient+Artist.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "MPDClient+Artist.swift"; sourceTree = "<group>"; };
+		E4F2EFED24076A2700198159 /* ServerState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ServerState.swift; sourceTree = "<group>"; };
+		E4F2EFEF24076B0900198159 /* ServerActions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ServerActions.swift; sourceTree = "<group>"; };
+		E4F2EFF124076B5E00198159 /* ServerReducer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ServerReducer.swift; sourceTree = "<group>"; };
 		E4F6B45F221E119B00ACF42A /* QueueDataSource.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QueueDataSource.swift; sourceTree = "<group>"; };
 		E4F6B462221E125900ACF42A /* QueueItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QueueItem.swift; sourceTree = "<group>"; };
 		E4F6B466221E233200ACF42A /* AlbumDataSource.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AlbumDataSource.swift; sourceTree = "<group>"; };
@@ -660,6 +668,7 @@
 				E4B11B60226A4BFF0075461B /* PlayerReducer.swift */,
 				E4FF718F227601B400D4C412 /* PreferencesReducer.swift */,
 				E4B11B74226CC4D30075461B /* QueueReducer.swift */,
+				E4F2EFF124076B5E00198159 /* ServerReducer.swift */,
 				E440519D227BB0720090CD6F /* UIReducer.swift */,
 			);
 			path = Reducers;
@@ -676,6 +685,7 @@
 				E4B11B65226A4F830075461B /* PlayerState.swift */,
 				E4FF718D2276010E00D4C412 /* PreferencesState.swift */,
 				E4B11B67226A4FA00075461B /* QueueState.swift */,
+				E4F2EFED24076A2700198159 /* ServerState.swift */,
 				E440519F227BB0AB0090CD6F /* UIState.swift */,
 			);
 			path = State;
@@ -689,6 +699,7 @@
 				E4B11BBD2275EDAA0075461B /* PlayerActions.swift */,
 				E4FF71912276029000D4C412 /* PreferencesActions.swift */,
 				E4B11BBF2275EE150075461B /* QueueActions.swift */,
+				E4F2EFEF24076B0900198159 /* ServerActions.swift */,
 				E440519B227BAF2E0090CD6F /* UIActions.swift */,
 			);
 			path = Actions;
@@ -707,6 +718,7 @@
 			children = (
 				E4EB237A220F7CF1008C70C0 /* MPDAlbum.swift */,
 				E45962C52241A78500FC1A1E /* MPDCommand.swift */,
+				E4B46F8E2402E89800152157 /* MPDError.swift */,
 				E4C8B53D22349002009A20F3 /* MPDIdle.swift */,
 				E4EB2378220F10B8008C70C0 /* MPDPair.swift */,
 				E4E8CC9922075D370024217A /* MPDSong.swift */,
@@ -974,6 +986,8 @@
 				E450AD7E222620A10091BED3 /* Album.swift in Sources */,
 				E4DA820623D6236200C1EE58 /* NSSize.swift in Sources */,
 				E408D3B6220DD8970006D9BE /* Notification.swift in Sources */,
+				E4F2EFEE24076A2700198159 /* ServerState.swift in Sources */,
+				E4B46F8F2402E89800152157 /* MPDError.swift in Sources */,
 				E43AC1F822C7065A001E483C /* AlbumCoverButton.swift in Sources */,
 				E45962C62241A78500FC1A1E /* MPDCommand.swift in Sources */,
 				E408D3B9220DE98F0006D9BE /* NSUserInterfaceItemIdentifier.swift in Sources */,
@@ -991,6 +1005,7 @@
 				E4FF71922276029000D4C412 /* PreferencesActions.swift in Sources */,
 				E489E39922B85D0400CA8CBD /* NSPasteboard.swift in Sources */,
 				E43AC1F122C68E6A001E483C /* NSPasteboardItem.swift in Sources */,
+				E4F2EFF224076B5E00198159 /* ServerReducer.swift in Sources */,
 				E465049A21E94DF500A70F4C /* WindowController.swift in Sources */,
 				E41B22C621FB932700D544F6 /* MPDClient.swift in Sources */,
 				E47E2FDD2220A6D100F747E6 /* Time.swift in Sources */,
@@ -1021,6 +1036,7 @@
 				E41EA46C221636AF0068EF46 /* GeneralPrefsViewController.swift in Sources */,
 				E4E8CC902204EC7F0024217A /* Delegate.swift in Sources */,
 				E47E2FD5222071FD00F747E6 /* AlbumViewItem.swift in Sources */,
+				E4F2EFF024076B0900198159 /* ServerActions.swift in Sources */,
 				E408D3BE220E03EE0006D9BE /* RawRepresentable.swift in Sources */,
 				E4B11B66226A4F830075461B /* PlayerState.swift in Sources */,
 				E4B11BBE2275EDAA0075461B /* PlayerActions.swift in Sources */,
@@ -1179,7 +1195,7 @@
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "3rd Party Mac Developer Application";
+				CODE_SIGN_IDENTITY = "Mac Developer";
 				COPY_PHASE_STRIP = NO;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
@@ -1221,7 +1237,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/libmpdclient/output",
 				);
-				MARKETING_VERSION = "0.16.1-alpha";
+				MARKETING_VERSION = "0.17.0-alpha";
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.Persephone;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1238,7 +1254,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
-				CODE_SIGN_IDENTITY = "3rd Party Mac Developer Application";
+				CODE_SIGN_IDENTITY = "Mac Developer";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				DEVELOPMENT_TEAM = 54DPC63K8R;
@@ -1253,7 +1269,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/libmpdclient/output",
 				);
-				MARKETING_VERSION = "0.16.1-alpha";
+				MARKETING_VERSION = "0.17.0-alpha";
 				PRODUCT_BUNDLE_IDENTIFIER = me.danbarber.Persephone;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1298,7 +1314,7 @@
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CODE_SIGN_IDENTITY = "3rd Party Mac Developer Application";
+				CODE_SIGN_IDENTITY = "Mac Developer";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				DEVELOPMENT_TEAM = 54DPC63K8R;
@@ -1348,7 +1364,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
-				CODE_SIGN_IDENTITY = "3rd Party Mac Developer Application";
+				CODE_SIGN_IDENTITY = "Mac Developer";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
 				DEVELOPMENT_TEAM = 54DPC63K8R;

Persephone/AppDelegate.swift

@@ -16,6 +16,8 @@ class AppDelegate: NSObject,
                    MediaKeyTapDelegate {
   var mediaKeyTap: MediaKeyTap?
 
+  @IBOutlet weak var connectMenuItem: NSMenuItem!
+  @IBOutlet weak var disconnectMenuItem: NSMenuItem!
   @IBOutlet weak var mainWindowMenuItem: NSMenuItem!
   @IBOutlet weak var updateDatabaseMenuItem: NSMenuItem!
   @IBOutlet weak var playSelectedSongMenuItem: NSMenuItem!
@@ -28,13 +30,13 @@ class AppDelegate: NSObject,
 
     App.store.subscribe(self) {
       $0.select {
-        $0.uiState
+        ($0.serverState, $0.uiState)
       }
     }
     
     _ = App.userNotificationsController
 
-    App.mpdServerController.connect()
+    _ = App.mpdServerController
   }
 
   func applicationWillTerminate(_ aNotification: Notification) {
@@ -105,6 +107,11 @@ class AppDelegate: NSObject,
     playSelectedSongNextMenuItem.isEnabled = selectedSong != nil
     addSelectedSongToQueueMenuItem.isEnabled = selectedSong != nil
   }
+  
+  func setConnectMenuItemsState(connected: Bool) {
+    connectMenuItem.isEnabled = !connected
+    disconnectMenuItem.isEnabled = connected
+  }
 
   func handle(mediaKey: MediaKey, event: KeyEvent) {
     switch mediaKey {
@@ -117,6 +124,13 @@ class AppDelegate: NSObject,
     }
   }
 
+  @IBAction func connectMenuAction(_ sender: NSMenuItem) {
+    App.mpdServerController.connect()
+  }
+  @IBAction func disconnectMenuAction(_ sender: NSMenuItem) {
+    App.mpdServerController.disconnect()
+  }
+  
   @IBAction func updateDatabase(_ sender: NSMenuItem) {
     App.mpdClient.updateDatabase()
   }
@@ -182,11 +196,14 @@ class AppDelegate: NSObject,
 }
 
 extension AppDelegate: StoreSubscriber {
-  typealias StoreSubscriberStateType = UIState
+  typealias StoreSubscriberStateType = (
+    serverState: ServerState, uiState: UIState
+  )
 
-  func newState(state: UIState) {
+  func newState(state: StoreSubscriberStateType) {
-    updateDatabaseMenuItem.isEnabled = !state.databaseUpdating
+    updateDatabaseMenuItem.isEnabled = !state.uiState.databaseUpdating
-    setMainWindowStateMenuItem(state: state.mainWindowState)
+    setMainWindowStateMenuItem(state: state.uiState.mainWindowState)
-    setSongMenuItemsState(selectedSong: state.selectedSong)
+    setSongMenuItemsState(selectedSong: state.uiState.selectedSong)
+    setConnectMenuItemsState(connected: state.serverState.connected)
   }
 }

Persephone/Components/Shared/Extensions/Notification.swift

@@ -12,4 +12,5 @@ extension Notification.Name {
   static let didConnect = Notification.Name("MPDClientDidConnect")
   static let willDisconnect = Notification.Name("MPDClientWillDisconnect")
   static let didReloadAlbumArt = Notification.Name("MPDDidReloadAlbumArt")
+  static let didRaiseError = Notification.Name("MPDDidRaiseError")
 }

Persephone/Components/Shared/MPDServerDelegate.swift

@@ -6,15 +6,28 @@
 //  Copyright © 2019 Dan Barber. All rights reserved.
 //
 
-import Foundation
+import AppKit
 
 class MPDServerDelegate: MPDClientDelegate {
   func didConnect(mpdClient: MPDClient) {
     NotificationCenter.default.post(name: .didConnect, object: nil)
+    DispatchQueue.main.async {
+      App.store.dispatch(UpdateConnectedState(connected: true))
+    }
   }
 
   func willDisconnect(mpdClient: MPDClient) {
     NotificationCenter.default.post(name: .willDisconnect, object: nil)
+    DispatchQueue.main.async {
+      App.store.dispatch(UpdateConnectedState(connected: false))
+    }
+  }
+  
+  func didRaiseError(
+    mpdClient: MPDClient,
+    error: MPDClient.MPDError
+  ) {
+    NotificationCenter.default.post(name: .didRaiseError, object: error)
   }
 
   func didUpdateStatus(mpdClient: MPDClient, status: MPDClient.MPDStatus) {

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

@@ -14,7 +14,7 @@
                         <items>
                             <menuItem title="Persephone" id="1Xt-HY-uBw">
                                 <modifierMask key="keyEquivalentModifierMask"/>
-                                <menu key="submenu" title="Persephone" systemMenu="apple" id="uQy-DD-JDr">
+                                <menu key="submenu" title="Persephone" systemMenu="apple" autoenablesItems="NO" id="uQy-DD-JDr">
                                     <items>
                                         <menuItem title="About Persephone" id="5kV-Vb-QxS">
                                             <modifierMask key="keyEquivalentModifierMask"/>
@@ -29,7 +29,19 @@
                                                 <segue destination="xYu-7w-E5x" kind="show" identifier="Preferences" id="OTW-56-v9E"/>
                                             </connections>
                                         </menuItem>
-                                        <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                                        <menuItem title="Connect" keyEquivalent="c" id="VlA-Re-OZs">
+                                            <modifierMask key="keyEquivalentModifierMask" control="YES" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="connectMenuAction:" target="Voe-Tx-rLC" id="Psl-MI-Dbx"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Disconnect" enabled="NO" keyEquivalent="d" id="yjK-qU-C6d">
+                                            <modifierMask key="keyEquivalentModifierMask" control="YES" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="disconnectMenuAction:" target="Voe-Tx-rLC" id="smu-DN-Ubp"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="vcx-U6-vzu"/>
                                         <menuItem title="Services" id="NMo-om-nkz">
                                             <modifierMask key="keyEquivalentModifierMask"/>
                                             <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
@@ -61,6 +73,50 @@
                                     </items>
                                 </menu>
                             </menuItem>
+                            <menuItem title="Edit" id="vqD-eY-QGd">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Edit" id="TuB-7j-hDK">
+                                    <items>
+                                        <menuItem title="Undo" keyEquivalent="z" id="Qfn-k5-qMJ">
+                                            <connections>
+                                                <action selector="undo:" target="Ady-hI-5gd" id="eEs-gZ-3LG"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Redo" keyEquivalent="Z" id="jTO-Fc-mMc">
+                                            <connections>
+                                                <action selector="redo:" target="Ady-hI-5gd" id="VB9-9R-Kbp"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="iGg-SA-H7J"/>
+                                        <menuItem title="Cut" keyEquivalent="x" id="wMs-2i-IFp">
+                                            <connections>
+                                                <action selector="cut:" target="Ady-hI-5gd" id="kNV-s2-6rJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Copy" keyEquivalent="c" id="6Xf-49-5o2">
+                                            <connections>
+                                                <action selector="copy:" target="Ady-hI-5gd" id="QzD-pM-sbg"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Paste" keyEquivalent="v" id="FPx-H8-gor">
+                                            <connections>
+                                                <action selector="paste:" target="Ady-hI-5gd" id="zK6-ON-cCD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Delete" id="42c-Ut-F4e">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="delete:" target="Ady-hI-5gd" id="XbT-8a-cop"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Select All" keyEquivalent="a" id="oF5-zh-KZt">
+                                            <connections>
+                                                <action selector="selectAll:" target="Ady-hI-5gd" id="3gW-FK-DJV"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
                             <menuItem title="Database" id="usv-UH-vkC">
                                 <modifierMask key="keyEquivalentModifierMask"/>
                                 <menu key="submenu" title="Database" autoenablesItems="NO" id="rFP-zL-1X4">
@@ -178,6 +234,8 @@
                 <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Persephone" customModuleProvider="target">
                     <connections>
                         <outlet property="addSelectedSongToQueueMenuItem" destination="JFH-jT-sBp" id="9dy-sJ-XYS"/>
+                        <outlet property="connectMenuItem" destination="VlA-Re-OZs" id="Zzt-yq-mtp"/>
+                        <outlet property="disconnectMenuItem" destination="yjK-qU-C6d" id="qel-dM-Gbl"/>
                         <outlet property="mainWindowMenuItem" destination="1Sq-L7-znT" id="dC6-yY-6Ss"/>
                         <outlet property="playSelectedSongMenuItem" destination="dyT-9E-DRY" id="UY2-SN-YMF"/>
                         <outlet property="playSelectedSongNextMenuItem" destination="Q8j-jr-IOp" id="Jqh-ia-sMK"/>
@@ -375,7 +433,7 @@
                 <splitViewController id="fnD-7K-pHK" customClass="MainSplitViewController" customModule="Persephone" customModuleProvider="target" sceneMemberID="viewController">
                     <splitViewItems>
                         <splitViewItem holdingPriority="255" behavior="contentList" id="CWo-v7-gd2"/>
-                        <splitViewItem id="Mdr-U0-Vci"/>
+                        <splitViewItem id="bAy-ec-iQI"/>
                     </splitViewItems>
                     <splitView key="splitView" dividerStyle="thin" vertical="YES" id="g34-ef-XN0">
                         <rect key="frame" x="0.0" y="0.0" width="450" height="300"/>
@@ -387,7 +445,7 @@
                     <connections>
                         <outlet property="splitView" destination="g34-ef-XN0" id="YEc-LL-DoS"/>
                         <segue destination="KIP-rq-4dM" kind="relationship" relationship="splitItems" id="Vmb-hY-d12"/>
-                        <segue destination="SjO-VS-1bb" kind="relationship" relationship="splitItems" id="peC-gL-WJ1"/>
+                        <segue destination="gPn-fP-LFc" kind="relationship" relationship="splitItems" id="eC9-b4-YWt"/>
                     </connections>
                 </splitViewController>
                 <customObject id="Dag-kO-ps3" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder"/>
@@ -501,53 +559,6 @@
             </objects>
             <point key="canvasLocation" x="1411" y="-420"/>
         </scene>
-        <!--View Controller-->
-        <scene sceneID="VvW-vT-alQ">
-            <objects>
-                <customObject id="MSG-y7-cKU" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder"/>
-                <viewController id="SjO-VS-1bb" sceneMemberID="viewController">
-                    <view key="view" id="BRY-0R-F3u">
-                        <rect key="frame" x="0.0" y="0.0" width="478" height="558"/>
-                        <autoresizingMask key="autoresizingMask"/>
-                        <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="system"/>
-                                <tabViewItems>
-                                    <tabViewItem label="Albums" identifier="" id="XgS-cX-SDH">
-                                        <view key="view" id="hB7-hN-SbB">
-                                            <rect key="frame" x="0.0" y="0.0" width="478" height="558"/>
-                                            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                                            <subviews>
-                                                <containerView translatesAutoresizingMaskIntoConstraints="NO" id="moE-bb-Zvg">
-                                                    <rect key="frame" x="-3" y="-3" width="481" height="561"/>
-                                                    <connections>
-                                                        <segue destination="gPn-fP-LFc" kind="embed" id="2iB-9y-I9h"/>
-                                                    </connections>
-                                                </containerView>
-                                            </subviews>
-                                            <constraints>
-                                                <constraint firstItem="moE-bb-Zvg" firstAttribute="top" secondItem="hB7-hN-SbB" secondAttribute="top" id="DUI-jy-8D7"/>
-                                                <constraint firstItem="moE-bb-Zvg" firstAttribute="leading" secondItem="hB7-hN-SbB" secondAttribute="leading" constant="-3" id="dCS-Kx-2UP"/>
-                                                <constraint firstAttribute="trailing" secondItem="moE-bb-Zvg" secondAttribute="trailing" id="qey-4e-xfu"/>
-                                                <constraint firstAttribute="bottom" secondItem="moE-bb-Zvg" secondAttribute="bottom" constant="-3" id="ziA-Xh-dlz"/>
-                                            </constraints>
-                                        </view>
-                                    </tabViewItem>
-                                </tabViewItems>
-                            </tabView>
-                        </subviews>
-                        <constraints>
-                            <constraint firstAttribute="trailing" secondItem="ARv-cj-xlz" secondAttribute="trailing" id="nXk-bi-ua4"/>
-                            <constraint firstAttribute="bottom" secondItem="ARv-cj-xlz" secondAttribute="bottom" id="nzf-Jw-Bpk"/>
-                            <constraint firstItem="ARv-cj-xlz" firstAttribute="top" secondItem="BRY-0R-F3u" secondAttribute="top" id="v6W-0L-kQ1"/>
-                            <constraint firstItem="ARv-cj-xlz" firstAttribute="leading" secondItem="BRY-0R-F3u" secondAttribute="leading" id="w2Z-xv-Fwz"/>
-                        </constraints>
-                    </view>
-                </viewController>
-            </objects>
-            <point key="canvasLocation" x="1436" y="238"/>
-        </scene>
         <!--General-->
         <scene sceneID="xTC-Y5-Agk">
             <objects>
@@ -912,7 +923,7 @@
                 </viewController>
                 <customObject id="uex-Ws-5X4" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="2038" y="87"/>
+            <point key="canvasLocation" x="1485" y="182"/>
         </scene>
     </scenes>
     <resources>

Persephone/Components/Window/WindowController.swift

@@ -38,13 +38,14 @@ class WindowController: NSWindowController {
 
     App.store.subscribe(self) {
       $0.select {
-        ($0.playerState, $0.uiState)
+        ($0.serverState, $0.playerState, $0.uiState)
       }
     }
 
     App.store.dispatch(MainWindowDidOpenAction())
     
     NotificationCenter.default.addObserver(self, selector: #selector(willDisconnect), name: .willDisconnect, object: nil)
+    NotificationCenter.default.addObserver(self, selector: #selector(reportError), name: .didRaiseError, object: nil)
 
     trackProgress.font = .timerFont
     trackRemaining.font = .timerFont
@@ -76,9 +77,18 @@ class WindowController: NSWindowController {
     }
   }
 
-  func setShuffleRepeatState(_ state: PlayerState) {
+  func setShuffleRepeatState(
-    shuffleState.state = state.shuffleState ? .on : .off
+    _ serverState: ServerState,
-    repeatState.state = state.repeatState ? .on : .off
+    _ playerState: PlayerState
+  ) {
+    shuffleState.isEnabled = serverState.connected
+    repeatState.isEnabled = serverState.connected
+    shuffleState.state = playerState.shuffleState ? .on : .off
+    repeatState.state = playerState.repeatState ? .on : .off
+  }
+  
+  func setSearchState(_ serverState: ServerState) {
+    searchQuery.isEnabled = serverState.connected
   }
 
   func setTrackProgressControls(_ playerState: PlayerState) {
@@ -144,10 +154,56 @@ class WindowController: NSWindowController {
     
   @objc func willDisconnect() {
     DispatchQueue.main.async {
-      App.store.dispatch(SetSearchQuery(searchQuery: ""))
+      App.store.dispatch(ResetStatusAction())
       self.searchQuery.stringValue = ""
     }
   }
+  
+  @objc func reportError(_ notification: NSNotification) {
+    guard let error = notification.object as? MPDClient.MPDError
+      else { return }
+
+    DispatchQueue.main.async {
+      guard let window = NSApplication.shared.mainWindow ?? self.window
+        else { return }
+
+      let alert = NSAlert(error: error)
+      alert.messageText = error.message
+
+      alert.alertStyle = error.recovered ? .warning : .critical
+      
+      print(error.mpdError)
+      
+      switch error.mpdError {
+      case MPD_ERROR_MALFORMED,
+           MPD_ERROR_ARGUMENT:
+        alert.informativeText = "Please check the mpd log for more details."
+      case MPD_ERROR_SYSTEM,
+           MPD_ERROR_TIMEOUT:
+        alert.informativeText = "Is the mpd server running?"
+      case MPD_ERROR_RESOLVER:
+        alert.informativeText = "Check your network connection."
+      default:
+        break;
+      }
+      
+      if !error.recovered {
+        alert.addButton(withTitle: "Reconnect")
+        alert.addButton(withTitle: "Dismiss")
+      }
+
+      alert.beginSheetModal(for: window) { response in
+        switch response {
+        case .alertFirstButtonReturn:
+          if !error.recovered {
+            App.mpdServerController.connect()
+          }
+        default:
+          break
+        }
+      }
+    }
+  }
 
   // TODO: Refactor this using a gesture recognizer
   @IBAction func changeTrackProgress(_ sender: NSSlider) {
@@ -224,12 +280,15 @@ extension WindowController: NSWindowDelegate {
 }
 
 extension WindowController: StoreSubscriber {
-  typealias StoreSubscriberStateType = (playerState: PlayerState, uiState: UIState)
+  typealias StoreSubscriberStateType = (
+    serverState: ServerState, playerState: PlayerState, uiState: UIState
+  )
 
   func newState(state: StoreSubscriberStateType) {
     DispatchQueue.main.async {
       self.setTransportControlState(state.playerState)
-      self.setShuffleRepeatState(state.playerState)
+      self.setShuffleRepeatState(state.serverState, state.playerState)
+      self.setSearchState(state.serverState)
       self.setTrackProgressControls(state.playerState)
       self.setDatabaseUpdatingIndicator(state.uiState)
       self.setVolumeControlIcon(state.playerState)

Persephone/MPDClient/Extensions/MPDClient+Command.swift

@@ -13,6 +13,8 @@ extension MPDClient {
     command: MPDCommand,
     userData: Dictionary<String, Any> = [:]
   ) {
+    guard command == .connect || isConnected else { return }
+
     switch command {
       
     case .connect:
@@ -157,7 +159,9 @@ extension MPDClient {
     let commandOperation = BlockOperation() { [unowned self] in
       self.sendCommand(command: command, userData: userData)
 
-      self.idle(forceIdle)
+      if self.checkError() {
+        self.idle(forceIdle)
+      }
     }
 
     commandOperation.queuePriority = priority

Persephone/MPDClient/Extensions/MPDClient+Connection.swift

@@ -11,16 +11,19 @@ import mpdclient
 
 extension MPDClient {
   func createConnection(host: String, port: Int) {
-    guard let connection = mpd_connection_new(host, UInt32(port), 10000),
+    connection = mpd_connection_new(host, UInt32(port), 10000)
-      mpd_connection_get_error(connection) == MPD_ERROR_SUCCESS
+    let error = mpd_connection_get_error(connection)
-      else { return }
+
+    guard error == MPD_ERROR_SUCCESS else {
+      _ = handleError(mpdError: error)
+      return
+    }
 
     self.isConnected = true
 
     guard let status = mpd_run_status(connection)
       else { return }
 
-    self.connection = connection
     self.status = MPDStatus(status)
 
     delegate?.didConnect(mpdClient: self)
@@ -50,4 +53,10 @@ extension MPDClient {
   func disconnect() {
     enqueueCommand(command: .disconnect)
   }
+  
+  func resetConnection() {
+    delegate?.willDisconnect(mpdClient: self)
+    mpd_connection_free(connection)
+    self.isConnected = false;
+  }
 }

Persephone/MPDClient/Extensions/MPDClient+Error.swift

@@ -10,6 +10,38 @@ import Foundation
 import mpdclient
 
 extension MPDClient {
+  func checkError() -> Bool {
+    let error = mpd_connection_get_error(connection)
+
+    if error != MPD_ERROR_SUCCESS {
+      return handleError(mpdError: error)
+    }
+    
+    return true
+  }
+
+  func handleError(mpdError: mpd_error) -> Bool {
+    guard let errorMessage = mpd_connection_get_error_message(connection)
+      else { return true }
+
+    let message = String(cString: errorMessage)
+    
+    let recovered = mpd_connection_clear_error(connection)
+
+    let error = MPDError(
+      mpdError: mpdError,
+      recovered: recovered,
+      message: message
+    )
+    delegate?.didRaiseError(mpdClient: self, error: error)
+    
+    if !recovered {
+      resetConnection()
+    }
+
+    return recovered
+  }
+
   func getLastErrorMessage() -> String? {
     if mpd_connection_get_error(connection) == MPD_ERROR_SUCCESS {
       return nil

Persephone/MPDClient/Extensions/MPDClient+Idle.swift

@@ -11,6 +11,8 @@ import mpdclient
 
 extension MPDClient {
   func noIdle() {
+    guard isConnected else { return }
+
     do {
       idleLock.lock()
       defer { idleLock.unlock() }
@@ -22,6 +24,8 @@ extension MPDClient {
   }
 
   func idle(_ force: Bool = false) {
+    guard isConnected else { return }
+
     let shouldIdle: Bool
   
     do {
@@ -50,8 +54,8 @@ extension MPDClient {
       wasIdle = isIdle
       isIdle = false
     }
-
+  
-    if wasIdle {
+    if checkError() && wasIdle {
       if mpdIdle.contains(.database) {
         self.fetchAllAlbums()
       }

Persephone/MPDClient/Models/MPDError.swift

@@ -0,0 +1,18 @@
+//
+//  MPDError.swift
+//  Persephone
+//
+//  Created by Daniel Barber on 2/23/20.
+//  Copyright © 2020 Dan Barber. All rights reserved.
+//
+
+import Foundation
+import mpdclient
+
+extension MPDClient {
+  struct MPDError: Error {
+    let mpdError: mpd_error
+    let recovered: Bool
+    let message: String
+  }
+}

Persephone/MPDClient/Protocols/Delegate.swift

@@ -11,6 +11,8 @@ import Foundation
 protocol MPDClientDelegate {
   func didConnect(mpdClient: MPDClient)
   func willDisconnect(mpdClient: MPDClient)
+  
+  func didRaiseError(mpdClient: MPDClient, error: MPDClient.MPDError)
 
   func didUpdateStatus(mpdClient: MPDClient, status: MPDClient.MPDStatus)
 

Persephone/State/Actions/PlayerActions.swift

@@ -6,7 +6,6 @@
 //  Copyright © 2019 Dan Barber. All rights reserved.
 //
 
-import AppKit
 import ReSwift
 
 struct UpdateCurrentSongAction: Action {
@@ -17,6 +16,8 @@ struct UpdateElapsedTimeAction: Action {
   var elapsedTimeMs: UInt = 0
 }
 
+struct ResetStatusAction: Action {}
+
 struct UpdateStatusAction: Action {
   var status: MPDClient.MPDStatus
 }

Persephone/State/Actions/ServerActions.swift

@@ -0,0 +1,13 @@
+//
+//  ServerActions.swift
+//  Persephone
+//
+//  Created by Daniel Barber on 2/26/20.
+//  Copyright © 2020 Dan Barber. All rights reserved.
+//
+
+import ReSwift
+
+struct UpdateConnectedState: Action {
+  var connected: Bool
+}

Persephone/State/AppState.swift

@@ -9,6 +9,7 @@
 import ReSwift
 
 struct AppState: StateType {
+  var serverState = ServerState()
   var playerState = PlayerState()
   var queueState = QueueState()
   var albumListState = AlbumListState()

Persephone/State/PlayerState.swift

@@ -6,7 +6,6 @@
 //  Copyright © 2019 Dan Barber. All rights reserved.
 //
 
-import AppKit
 import ReSwift
 
 struct PlayerState: StateType {

Persephone/State/Reducers/AppReducer.swift

@@ -10,6 +10,7 @@ import ReSwift
 
 func appReducer(action: Action, state: AppState?) -> AppState {
   return AppState(
+    serverState: serverReducer(action: action, state: state?.serverState),
     playerState: playerReducer(action: action, state: state?.playerState),
     queueState: queueReducer(action: action, state: state?.queueState),
     albumListState: albumListReducer(action: action, state: state?.albumListState),

Persephone/State/Reducers/PlayerReducer.swift

@@ -13,6 +13,14 @@ func playerReducer(action: Action, state: PlayerState?) -> PlayerState {
   var state = state ?? PlayerState()
 
   switch action {
+  case is ResetStatusAction:
+    state.state = .unknown
+    state.totalTime = 0
+    state.elapsedTimeMs = 0
+    state.shuffleState = false
+    state.repeatState = false
+    state.volume = -1
+
   case let action as UpdateStatusAction:
     state.status = action.status
     state.state = action.status.state

Persephone/State/Reducers/ServerReducer.swift

@@ -0,0 +1,23 @@
+//
+//  ServerReducer.swift
+//  Persephone
+//
+//  Created by Daniel Barber on 2/26/20.
+//  Copyright © 2020 Dan Barber. All rights reserved.
+//
+
+import ReSwift
+
+func serverReducer(action: Action, state: ServerState?) -> ServerState {
+  var state = state ?? ServerState()
+  
+  switch action {
+  case let action as UpdateConnectedState:
+    state.connected = action.connected
+
+  default:
+    break
+  }
+  
+  return state
+}

Persephone/State/ServerState.swift

@@ -0,0 +1,13 @@
+//
+//  ServerState.swift
+//  Persephone
+//
+//  Created by Daniel Barber on 2/26/20.
+//  Copyright © 2020 Dan Barber. All rights reserved.
+//
+
+import ReSwift
+
+struct ServerState: StateType {
+  var connected: Bool = false
+}