CalDav synchronizer, new IMAP setup/edit page.

Wino.Core.Domain/Entities/Shared/CustomServerInformation.cs

@@ -30,6 +30,11 @@ public class CustomServerInformation
     public string OutgoingServerUsername { get; set; }
     public string OutgoingServerPassword { get; set; }
 
+    public string CalDavServiceUrl { get; set; }
+    public string CalDavUsername { get; set; }
+    public string CalDavPassword { get; set; }
+    public ImapCalendarSupportMode CalendarSupportMode { get; set; }
+
     /// <summary>
     /// useSSL True: SslOnConnect
     /// useSSL False: StartTlsWhenAvailable
@@ -65,6 +70,8 @@ public class CustomServerInformation
             { "OutgoingServerPort", OutgoingServerPort },
             { "OutgoingServerSocketOption", OutgoingServerSocketOption.ToString() },
             { "OutgoingAuthenticationMethod", OutgoingAuthenticationMethod.ToString() },
+            { "CalendarSupportMode", CalendarSupportMode.ToString() },
+            { "CalDavServiceUrl", CalDavServiceUrl },
             { "ProxyServer", ProxyServer },
             { "ProxyServerPort", ProxyServerPort }
         };

Wino.Core.Domain/Enums/ImapCalendarSupportMode.cs

@@ -0,0 +1,8 @@
+namespace Wino.Core.Domain.Enums;
+
+public enum ImapCalendarSupportMode
+{
+    Disabled = 0,
+    CalDav = 1,
+    LocalOnly = 2
+}

Wino.Core.Domain/Enums/WinoPage.cs

@@ -27,6 +27,7 @@ public enum WinoPage
     SettingOptionsPage,
     AliasManagementPage,
     EditAccountDetailsPage,
+    ImapCalDavSettingsPage,
     KeyboardShortcutsPage,
     CalendarPage,
     CalendarSettingsPage,

Wino.Core.Domain/Interfaces/IAutoDiscoveryService.cs

@@ -1,17 +1,22 @@
-using System.Threading.Tasks;
+using System;
+using System.Threading;
+using System.Threading.Tasks;
 using Wino.Core.Domain.Models.AutoDiscovery;
 
 namespace Wino.Core.Domain.Interfaces;
 
 /// <summary>
-/// Searches for Auto Discovery settings for custom mail accounts.
+/// Searches for auto-discovery settings for custom mail accounts.
 /// </summary>
 public interface IAutoDiscoveryService
 {
     /// <summary>
     /// Tries to return the best mail server settings using different techniques.
     /// </summary>
-    /// <param name="mailAddress">Address to search settings for.</param>
-    /// <returns>CustomServerInformation with only settings applied.</returns>
     Task<AutoDiscoverySettings> GetAutoDiscoverySettings(AutoDiscoveryMinimalSettings autoDiscoveryMinimalSettings);
+
+    /// <summary>
+    /// Tries to resolve a CalDAV endpoint for the mailbox address.
+    /// </summary>
+    Task<Uri> DiscoverCalDavServiceUriAsync(string mailAddress, CancellationToken cancellationToken = default);
 }

Wino.Core.Domain/Interfaces/ICalDavClient.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Wino.Core.Domain.Models.Calendar;
+
+namespace Wino.Core.Domain.Interfaces;
+
+public interface ICalDavClient
+{
+    Task<IReadOnlyList<CalDavCalendar>> DiscoverCalendarsAsync(
+        CalDavConnectionSettings connectionSettings,
+        CancellationToken cancellationToken = default);
+
+    Task<IReadOnlyList<CalDavCalendarEvent>> GetCalendarEventsAsync(
+        CalDavConnectionSettings connectionSettings,
+        CalDavCalendar calendar,
+        DateTimeOffset startUtc,
+        DateTimeOffset endUtc,
+        CancellationToken cancellationToken = default);
+}
+

Wino.Core.Domain/Interfaces/ICalendarIcsFileService.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Wino.Core.Domain.Interfaces;
+
+/// <summary>
+/// Persists CalDAV ICS payloads on disk for IMAP accounts.
+/// </summary>
+public interface ICalendarIcsFileService
+{
+    Task SaveCalendarItemIcsAsync(Guid accountId, Guid calendarId, Guid calendarItemId, string remoteEventId, string remoteResourceHref, string eTag, string icsContent);
+    Task DeleteCalendarItemIcsAsync(Guid accountId, Guid calendarItemId);
+    Task DeleteCalendarIcsForCalendarAsync(Guid accountId, Guid calendarId);
+}

Wino.Core.Domain/Interfaces/IImapAccountCreationDialog.cs

@@ -1,24 +0,0 @@
-using System.Threading.Tasks;
-using Wino.Core.Domain.Entities.Shared;
-
-namespace Wino.Core.Domain.Interfaces;
-
-public interface IImapAccountCreationDialog : IAccountCreationDialog
-{
-    /// <summary>
-    /// Returns the custom server information from the dialog..
-    /// </summary>
-    /// <returns>Null if canceled.</returns>
-    Task<CustomServerInformation> GetCustomServerInformationAsync();
-
-    /// <summary>
-    /// Displays preparing folders page.
-    /// </summary>
-    void ShowPreparingFolders();
-
-    /// <summary>
-    /// Updates account properties for the welcome imap setup dialog and starts the setup.
-    /// </summary>
-    /// <param name="account">Account properties.</param>
-    void StartImapConnectionSetup(MailAccount account);
-}

Wino.Core.Domain/Models/AutoDiscovery/AutoDiscoverySettings.cs

@@ -64,8 +64,8 @@ public class AutoDiscoverySettings
     }
 
     public AutoDiscoveryProviderSetting GetImapSettings()
-        => Settings?.Find(a => a.Protocol == "IMAP");
+        => Settings?.Find(a => string.Equals(a.Protocol, "IMAP", StringComparison.OrdinalIgnoreCase));
 
     public AutoDiscoveryProviderSetting GetSmptpSettings()
-        => Settings?.Find(a => a.Protocol == "SMTP");
+        => Settings?.Find(a => string.Equals(a.Protocol, "SMTP", StringComparison.OrdinalIgnoreCase));
 }

Wino.Core.Domain/Models/Calendar/CalDavCalendar.cs

@@ -0,0 +1,10 @@
+namespace Wino.Core.Domain.Models.Calendar;
+
+public sealed class CalDavCalendar
+{
+    public string RemoteCalendarId { get; init; } = string.Empty;
+    public string Name { get; init; } = string.Empty;
+    public string CTag { get; init; } = string.Empty;
+    public string SyncToken { get; init; } = string.Empty;
+}
+

Wino.Core.Domain/Models/Calendar/CalDavCalendarEvent.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using Wino.Core.Domain.Enums;
+
+namespace Wino.Core.Domain.Models.Calendar;
+
+public sealed class CalDavCalendarEvent
+{
+    public string RemoteEventId { get; init; } = string.Empty;
+    public string RemoteResourceHref { get; init; } = string.Empty;
+    public string ETag { get; init; } = string.Empty;
+    public string IcsContent { get; init; } = string.Empty;
+
+    public string Uid { get; init; } = string.Empty;
+    public string SeriesMasterRemoteEventId { get; init; } = string.Empty;
+    public bool IsSeriesMaster { get; init; }
+    public bool IsRecurringInstance { get; init; }
+
+    public string Title { get; init; } = string.Empty;
+    public string Description { get; init; } = string.Empty;
+    public string Location { get; init; } = string.Empty;
+
+    public DateTimeOffset Start { get; init; }
+    public DateTimeOffset End { get; init; }
+    public string StartTimeZone { get; init; } = string.Empty;
+    public string EndTimeZone { get; init; } = string.Empty;
+    public string Recurrence { get; init; } = string.Empty;
+
+    public string OrganizerDisplayName { get; init; } = string.Empty;
+    public string OrganizerEmail { get; init; } = string.Empty;
+
+    public CalendarItemStatus Status { get; init; } = CalendarItemStatus.Accepted;
+    public CalendarItemVisibility Visibility { get; init; } = CalendarItemVisibility.Default;
+    public CalendarItemShowAs ShowAs { get; init; } = CalendarItemShowAs.Busy;
+    public bool IsHidden { get; init; }
+
+    public IReadOnlyList<CalDavEventAttendee> Attendees { get; init; } = [];
+    public IReadOnlyList<CalDavEventReminder> Reminders { get; init; } = [];
+}
+
+public sealed class CalDavEventAttendee
+{
+    public string Name { get; init; } = string.Empty;
+    public string Email { get; init; } = string.Empty;
+    public AttendeeStatus AttendenceStatus { get; init; } = AttendeeStatus.NeedsAction;
+    public bool IsOrganizer { get; init; }
+    public bool IsOptionalAttendee { get; init; }
+}
+
+public sealed class CalDavEventReminder
+{
+    public int DurationInSeconds { get; init; }
+    public CalendarItemReminderType ReminderType { get; init; } = CalendarItemReminderType.Popup;
+}
+

Wino.Core.Domain/Models/Calendar/CalDavConnectionSettings.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Wino.Core.Domain.Models.Calendar;
+
+public sealed class CalDavConnectionSettings
+{
+    public Uri ServiceUri { get; init; }
+    public string Username { get; init; } = string.Empty;
+    public string Password { get; init; } = string.Empty;
+}
+

Wino.Core.Domain/Translations/en_US/resources.json

@@ -376,6 +376,47 @@
     "IMAPSetupDialog_Username": "Username",
     "IMAPSetupDialog_UsernamePlaceholder": "johndoe, johndoe@fabrikam.com, domain/johndoe",
     "IMAPSetupDialog_UseSameConfig": "Use the same username and password for sending email",
+    "ImapCalDavSettingsPage_TitleCreate": "IMAP and Calendar Setup",
+    "ImapCalDavSettingsPage_TitleEdit": "Edit IMAP and Calendar Settings",
+    "ImapCalDavSettingsPage_Subtitle": "Configure IMAP/SMTP and optional calendar synchronization for this account.",
+    "ImapCalDavSettingsPage_BasicSectionTitle": "Basic setup",
+    "ImapCalDavSettingsPage_BasicSectionDescription": "Enter your identity and credentials. Wino can try to detect server settings automatically.",
+    "ImapCalDavSettingsPage_BasicTab": "Basic",
+    "ImapCalDavSettingsPage_EnableCalendarSupport": "Enable calendar support",
+    "ImapCalDavSettingsPage_AutoDiscoverButton": "Autodiscover mail settings",
+    "ImapCalDavSettingsPage_AutoDiscoverySuccessMessage": "Mail settings discovered and applied.",
+    "ImapCalDavSettingsPage_AdvancedSectionTitle": "Advanced configuration",
+    "ImapCalDavSettingsPage_AdvancedSectionDescription": "Enter server settings manually if autodiscovery is unavailable or incorrect.",
+    "ImapCalDavSettingsPage_AdvancedTab": "Advanced",
+    "ImapCalDavSettingsPage_CalendarSectionTitle": "Calendar setup",
+    "ImapCalDavSettingsPage_CalendarSectionDescription": "Choose how calendar data should work for this IMAP account.",
+    "ImapCalDavSettingsPage_CalendarModeHeader": "Calendar mode",
+    "ImapCalDavSettingsPage_ConnectionSecurityHeader": "Connection security",
+    "ImapCalDavSettingsPage_AuthenticationMethodHeader": "Authentication method",
+    "ImapCalDavSettingsPage_CalendarModeDisabled": "Disabled",
+    "ImapCalDavSettingsPage_CalendarModeCalDav": "CalDAV synchronization",
+    "ImapCalDavSettingsPage_CalendarModeLocalOnly": "Local calendar only",
+    "ImapCalDavSettingsPage_CalendarModeDisabledDescription": "Calendar is disabled for this account.",
+    "ImapCalDavSettingsPage_CalendarModeCalDavDescription": "Calendar items are synchronized with your CalDAV server.",
+    "ImapCalDavSettingsPage_CalendarModeLocalOnlyDescription": "Calendar items are stored only on this computer and are not synchronized to the network.",
+    "ImapCalDavSettingsPage_LocalCalendarLearnMore": "How local calendar works",
+    "ImapCalDavSettingsPage_LocalCalendarDialogTitle": "Local calendar only",
+    "ImapCalDavSettingsPage_LocalCalendarDialogMessage": "Local calendar keeps all events only on your computer. Nothing is synchronized to iCloud, Yahoo, or any other provider.",
+    "ImapCalDavSettingsPage_CalDavServiceUrl": "CalDAV service URL",
+    "ImapCalDavSettingsPage_CalDavUsername": "CalDAV username",
+    "ImapCalDavSettingsPage_CalDavPassword": "CalDAV password",
+    "ImapCalDavSettingsPage_CalDavNotRequiredMessage": "CalDAV test is only required when calendar mode is set to CalDAV synchronization.",
+    "ImapCalDavSettingsPage_CalDavUrlRequired": "CalDAV service URL is required.",
+    "ImapCalDavSettingsPage_CalDavUrlInvalid": "CalDAV service URL must be an absolute URL.",
+    "ImapCalDavSettingsPage_CalDavUsernameRequired": "CalDAV username is required.",
+    "ImapCalDavSettingsPage_CalDavPasswordRequired": "CalDAV password is required.",
+    "ImapCalDavSettingsPage_TestImapButton": "Test IMAP connection",
+    "ImapCalDavSettingsPage_TestCalDavButton": "Test CalDAV connection",
+    "ImapCalDavSettingsPage_ImapTestSuccessMessage": "IMAP connection test succeeded.",
+    "ImapCalDavSettingsPage_CalDavTestSuccessMessage": "CalDAV connection test succeeded.",
+    "ImapCalDavSettingsPage_SaveSuccessMessage": "Account settings validated and saved.",
+    "ImapCalDavSettingsPage_ICloudHint": "Use an app-specific password generated from your Apple account settings.",
+    "ImapCalDavSettingsPage_YahooHint": "Use an app password from your Yahoo account security settings.",
     "Info_AccountCreatedMessage": "{0} is created",
     "Info_AccountCreatedTitle": "Account Creation",
     "Info_AccountCreationFailedTitle": "Account Creation Failed",