auto-scan initial code. Feature not yet complete

Source/AppScaffolding/LibationScaffolding.cs

@@ -122,6 +122,9 @@ namespace AppScaffolding
 
 			if (!config.Exists(nameof(config.ChapterFileTemplate)))
 				config.ChapterFileTemplate = Templates.ChapterFile.DefaultTemplate;
+
+			if (!config.Exists(nameof(config.AutoScan)))
+				config.AutoScan = true;
 		}
 
 		/// <summary>Initialize logging. Run after migration</summary>

Source/AudibleUtilities/AccountsSettingsPersister.cs

@@ -7,6 +7,12 @@ namespace AudibleUtilities
 {
 	public class AccountsSettingsPersister : JsonFilePersister<AccountsSettings>
 	{
+		public static event EventHandler Saving;
+		public static event EventHandler Saved;
+
+		protected override void OnSaving() => Saving?.Invoke(null, null);
+		protected override void OnSaved() => Saved?.Invoke(null, null);
+
 		/// <summary>Alias for Target </summary>
 		public AccountsSettings AccountsSettings => Target;
 

Source/AudibleUtilities/AudibleUtilities.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AudibleApi" Version="2.7.3.1" />
+    <PackageReference Include="AudibleApi" Version="2.7.5.1" />
   </ItemGroup>
 
   <ItemGroup>

Source/FileManager/FileManager.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Dinah.Core" Version="4.0.6.1" />
+    <PackageReference Include="Dinah.Core" Version="4.1.1.1" />
     <PackageReference Include="Polly" Version="7.2.3" />
   </ItemGroup>
 

Source/LibationFileManager/Configuration.cs

@@ -224,6 +224,22 @@ namespace LibationFileManager
             set => persistentDictionary.SetNonString(nameof(DownloadEpisodes), value);
 		}
 
+        public event EventHandler AutoScanChanged;
+
+        [Description("Automatically run periodic scans in the background?")]
+        public bool AutoScan
+        {
+            get => persistentDictionary.GetNonString<bool>(nameof(AutoScan));
+            set
+            {
+                if (AutoScan != value)
+                {
+                    persistentDictionary.SetNonString(nameof(AutoScan), value);
+                    AutoScanChanged?.Invoke(null, null);
+                }
+            }
+        }
+
         #region templates: custom file naming
 
         [Description("How to format the folders in which files will be saved")]

Source/LibationWinForms/Dialogs/AccountsDialog.cs

@@ -122,7 +122,6 @@ namespace LibationWinForms.Dialogs
 				persist(persister.AccountsSettings);
 				persister.CommitTransation();
 
-				_parent.RefreshImportMenu();
 				this.DialogResult = DialogResult.OK;
 				this.Close();
 			}

Source/LibationWinForms/Form1.cs

@@ -31,7 +31,6 @@ namespace LibationWinForms
 
 			// independent UI updates
 			this.Load += (_, _) => this.RestoreSizeAndLocation(Configuration.Instance);
-			this.Load += RefreshImportMenu;
 			this.FormClosing += (_, _) => this.SaveSizeAndLocation(Configuration.Instance);
 			LibraryCommands.LibrarySizeChanged += reloadGridAndUpdateBottomNumbers;
 			LibraryCommands.BookUserDefinedItemCommitted += setBackupCounts;
@@ -39,12 +38,52 @@ namespace LibationWinForms
             LibraryCommands.ScanBegin += LibraryCommands_ScanBegin;
             LibraryCommands.ScanEnd += LibraryCommands_ScanEnd;
 
+			// accounts updated
+			this.Load += refreshImportMenu;
+			AccountsSettingsPersister.Saved += refreshImportMenu;
+
+			// start autoscanner
+			this.Load += startAutoScan;
+			AccountsSettingsPersister.Saving += accountsPreSave;
+			AccountsSettingsPersister.Saved += accountsPostSave;
+			Configuration.Instance.AutoScanChanged += startAutoScan;
+
+			// init default/placeholder cover art
 			var format = System.Drawing.Imaging.ImageFormat.Jpeg;
 			PictureStorage.SetDefaultImage(PictureSize._80x80, Properties.Resources.default_cover_80x80.ToBytes(format));
 			PictureStorage.SetDefaultImage(PictureSize._300x300, Properties.Resources.default_cover_300x300.ToBytes(format));
 			PictureStorage.SetDefaultImage(PictureSize._500x500, Properties.Resources.default_cover_500x500.ToBytes(format));
 		}
 
+		private List<(string AccountId, string LocaleName)> preSaveDefaultAccounts;
+		private List<(string AccountId, string LocaleName)> getDefaultAccounts()
+		{
+			using var persister = AudibleApiStorage.GetAccountsSettingsPersister();
+			return persister.AccountsSettings
+				.GetAll()
+				.Where(a => a.LibraryScan)
+				.Select(a => (a.AccountId, a.Locale.Name))
+				.ToList();
+		}
+		private void accountsPreSave(object sender = null, EventArgs e = null)
+			=> preSaveDefaultAccounts = getDefaultAccounts();
+		private void accountsPostSave(object sender = null, EventArgs e = null)
+		{
+			var postSaveDefaultAccounts = getDefaultAccounts();
+			var newDefaultAccounts = postSaveDefaultAccounts.Except(preSaveDefaultAccounts).ToList();
+
+			if (newDefaultAccounts.Any())
+				startAutoScan();
+		}
+
+		private void startAutoScan(object sender = null, EventArgs e = null)
+		{
+			if (Configuration.Instance.AutoScan)
+				Console.WriteLine("autoScanner.StartScan();");
+			else
+				Console.WriteLine("autoScanner.StopScan();");
+		}
+
 		private void Form1_Load(object sender, EventArgs e)
 		{
 			if (this.DesignMode)
@@ -237,7 +276,7 @@ namespace LibationWinForms
 		#endregion
 
 		#region Import menu
-		public void RefreshImportMenu(object _ = null, EventArgs __ = null)
+		private void refreshImportMenu(object _ = null, EventArgs __ = null)
 		{
 			using var persister = AudibleApiStorage.GetAccountsSettingsPersister();
 			var count = persister.AccountsSettings.Accounts.Count;

Source/LibationWinForms/LibationWinForms.csproj

@@ -28,7 +28,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Dinah.Core.WindowsDesktop" Version="4.1.6.1" />
+    <PackageReference Include="Dinah.Core.WindowsDesktop" Version="4.1.8.1" />
   </ItemGroup>
 
   <ItemGroup>