From bf77dff5efbb6df2134a1d24489d656d933e2ce5 Mon Sep 17 00:00:00 2001
From: Claudio Schaad <c.schaad@pog.ch>
Date: Fri, 10 Apr 2026 22:40:58 +0200
Subject: [PATCH] feat: add ICalendarService interface and marker interfaces

---
 Services/ICalendarService.cs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Services/ICalendarService.cs

diff --git a/Services/ICalendarService.cs b/Services/ICalendarService.cs
new file mode 100644
index 0000000..d5ce3ce
--- /dev/null
+++ b/Services/ICalendarService.cs
@@ -0,0 +1,15 @@
+using ShiftScheduler.Shared;
+
+namespace ShiftScheduler.Services;
+
+public interface ICalendarService
+{
+    Task<List<CalendarInfo>> GetCalendarsAsync();
+    Task SyncShiftsToCalendarAsync(string calendarId, List<ShiftWithTransport> shifts);
+}
+
+/// <summary>Marker interface for DI disambiguation.</summary>
+public interface IGoogleCalendarService : ICalendarService { }
+
+/// <summary>Marker interface for DI disambiguation.</summary>
+public interface INextcloudCalendarService : ICalendarService { }