Improved mailboxes to include sent mails and drafts (#1038)

app/MindWork AI Studio/Dialogs/DataSourceMailboxDialog.razor

@@ -252,7 +252,7 @@
                 @T("Folder")
             </MudText>
             <MudJustifiedText Typo="Typo.body1" Class="mb-3">
-                @T("Select the folder AI Studio indexes, together with its subfolders. The AI only reads from this folder. Without a folder, AI Studio indexes the whole mailbox, apart from the trash and the junk folder.")
+                @T("Select the folder AI Studio indexes, together with its subfolders. The AI only reads from this folder, and from your sent mails and drafts when you include them below. Without a folder, AI Studio indexes the whole mailbox, apart from the trash and the junk folder.")
             </MudJustifiedText>
             @if (!this.CanChangeSource)
             {
@@ -283,6 +283,11 @@
                     @this.folderIssue
                 </MudAlert>
             }
+            @if (this.HasRootFolder)
+            {
+                @* Not part of the source: switching it only adds or removes folders, so it stays open once the mails are prepared. *@
+                <MudTextSwitch @bind-Value="@this.dataIncludeSentAndDrafts" Color="Color.Primary" Label="@T("Include sent mails and drafts?")" LabelOn="@T("Yes, also index the sent mails and the drafts")" LabelOff="@T("No, only index the selected folder and its subfolders")"/>
+            }
 
             <MudSelect T="MailboxMaxAge" @bind-Value="@this.dataMaxAge" Text="@this.dataMaxAge.GetName()" Label="@T("Period")" Class="mb-1 mt-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" AdornmentIcon="@Icons.Material.Filled.DateRange">
                 @foreach (var maxAge in ConfigurationSelectDataFactory.GetMailboxMaxAgeData())
@@ -293,7 +298,7 @@
                 }
             </MudSelect>
             <MudJustifiedText Typo="Typo.body2" Class="mb-6">
-                @T("AI Studio indexes the newest mails first. Flagged mails are always indexed, however old they are.")
+                @T("AI Studio indexes the newest mails first. Flagged mails and drafts are always indexed, however old they are.")
             </MudJustifiedText>
 
             <MudTextSwitch @bind-Value="@this.dataIndexAttachments" Color="Color.Primary" Label="@T("Index the text of attachments?")" LabelOn="@T("Yes, index the text of attached documents")" LabelOff="@T("No, only list the names of attachments")"/>

app/MindWork AI Studio/Dialogs/DataSourceMailboxDialog.razor.cs

@@ -92,6 +92,7 @@ public partial class DataSourceMailboxDialog : MSGComponentBase
     private string dataUsername = string.Empty;
     private string dataPassword = string.Empty;
     private string dataRootFolder = string.Empty;
+    private bool dataIncludeSentAndDrafts = true;
     private MailboxMaxAge dataMaxAge = MailboxMaxAge.LAST_12_MONTHS;
     private bool dataIndexAttachments = true;
     private int dataMaxAttachmentSizeMegabytes = 10;
@@ -169,6 +170,7 @@ public partial class DataSourceMailboxDialog : MSGComponentBase
             this.dataTransportSecurity = this.DataSource.TransportSecurity;
             this.dataUsername = this.DataSource.Username;
             this.dataRootFolder = this.DataSource.RootFolder;
+            this.dataIncludeSentAndDrafts = this.DataSource.IncludeSentAndDrafts;
             this.dataMaxAge = this.DataSource.MaxAge;
             this.dataIndexAttachments = this.DataSource.IndexAttachments;
             this.dataMaxAttachmentSizeMegabytes = this.DataSource.MaxAttachmentSizeMegabytes;
@@ -337,6 +339,9 @@ public partial class DataSourceMailboxDialog : MSGComponentBase
 
     private string RootFolderText => string.IsNullOrEmpty(this.dataRootFolder) ? T("Whole mailbox") : this.dataRootFolder;
 
+    // Without a root folder, the sent mails and the drafts belong to the whole mailbox anyway:
+    private bool HasRootFolder => !string.IsNullOrEmpty(this.dataRootFolder);
+
     private string ConfidenceLevelText => this.dataConfidenceLevel is ConfidenceLevel.NONE ? string.Empty : this.dataConfidenceLevel.GetName();
 
     private OutboundDataRestriction MinimumOutboundDataRestriction => this.SettingsManager.ConfigurationData.MailboxSettings.MinimumOutboundDataRestriction;
@@ -403,6 +408,7 @@ public partial class DataSourceMailboxDialog : MSGComponentBase
         Username = this.CanChangeSource ? this.dataUsername.Trim() : this.DataSource.Username,
         RootFolder = this.CanChangeSource ? this.dataRootFolder : this.DataSource.RootFolder,
 
+        IncludeSentAndDrafts = this.dataIncludeSentAndDrafts,
         Port = this.dataPort,
         TransportSecurity = this.dataTransportSecurity,
         AuthMethod = MailboxAuthMethod.PASSWORD,