iOS: add write commands for contacts/calendar/reminders

apps/ios/Sources/Calendar/CalendarService.swift

@@ -36,6 +36,65 @@ final class CalendarService: CalendarServicing {
         return OpenClawCalendarEventsPayload(events: payload)
     }
 
+    func add(params: OpenClawCalendarAddParams) async throws -> OpenClawCalendarAddPayload {
+        let store = EKEventStore()
+        let status = EKEventStore.authorizationStatus(for: .event)
+        let authorized = await Self.ensureWriteAuthorization(store: store, status: status)
+        guard authorized else {
+            throw NSError(domain: "Calendar", code: 2, userInfo: [
+                NSLocalizedDescriptionKey: "CALENDAR_PERMISSION_REQUIRED: grant Calendar permission",
+            ])
+        }
+
+        let title = params.title.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !title.isEmpty else {
+            throw NSError(domain: "Calendar", code: 3, userInfo: [
+                NSLocalizedDescriptionKey: "CALENDAR_INVALID: title required",
+            ])
+        }
+
+        let formatter = ISO8601DateFormatter()
+        guard let start = formatter.date(from: params.startISO) else {
+            throw NSError(domain: "Calendar", code: 4, userInfo: [
+                NSLocalizedDescriptionKey: "CALENDAR_INVALID: startISO required",
+            ])
+        }
+        guard let end = formatter.date(from: params.endISO) else {
+            throw NSError(domain: "Calendar", code: 5, userInfo: [
+                NSLocalizedDescriptionKey: "CALENDAR_INVALID: endISO required",
+            ])
+        }
+
+        let event = EKEvent(eventStore: store)
+        event.title = title
+        event.startDate = start
+        event.endDate = end
+        event.isAllDay = params.isAllDay ?? false
+        if let location = params.location?.trimmingCharacters(in: .whitespacesAndNewlines), !location.isEmpty {
+            event.location = location
+        }
+        if let notes = params.notes?.trimmingCharacters(in: .whitespacesAndNewlines), !notes.isEmpty {
+            event.notes = notes
+        }
+        event.calendar = try Self.resolveCalendar(
+            store: store,
+            calendarId: params.calendarId,
+            calendarTitle: params.calendarTitle)
+
+        try store.save(event, span: .thisEvent)
+
+        let payload = OpenClawCalendarEventPayload(
+            identifier: event.eventIdentifier ?? UUID().uuidString,
+            title: event.title ?? title,
+            startISO: formatter.string(from: event.startDate),
+            endISO: formatter.string(from: event.endDate),
+            isAllDay: event.isAllDay,
+            location: event.location,
+            calendarTitle: event.calendar.title)
+
+        return OpenClawCalendarAddPayload(event: payload)
+    }
+
     private static func ensureAuthorization(store: EKEventStore, status: EKAuthorizationStatus) async -> Bool {
         switch status {
         case .authorized:
@@ -57,6 +116,54 @@ final class CalendarService: CalendarServicing {
         }
     }
 
+    private static func ensureWriteAuthorization(store: EKEventStore, status: EKAuthorizationStatus) async -> Bool {
+        switch status {
+        case .authorized, .fullAccess, .writeOnly:
+            return true
+        case .notDetermined:
+            return await withCheckedContinuation { cont in
+                store.requestAccess(to: .event) { granted, _ in
+                    cont.resume(returning: granted)
+                }
+            }
+        case .restricted, .denied:
+            return false
+        @unknown default:
+            return false
+        }
+    }
+
+    private static func resolveCalendar(
+        store: EKEventStore,
+        calendarId: String?,
+        calendarTitle: String?) throws -> EKCalendar
+    {
+        if let id = calendarId?.trimmingCharacters(in: .whitespacesAndNewlines), !id.isEmpty,
+           let calendar = store.calendar(withIdentifier: id)
+        {
+            return calendar
+        }
+
+        if let title = calendarTitle?.trimmingCharacters(in: .whitespacesAndNewlines), !title.isEmpty {
+            if let calendar = store.calendars(for: .event).first(where: {
+                $0.title.compare(title, options: [.caseInsensitive, .diacriticInsensitive]) == .orderedSame
+            }) {
+                return calendar
+            }
+            throw NSError(domain: "Calendar", code: 6, userInfo: [
+                NSLocalizedDescriptionKey: "CALENDAR_NOT_FOUND: no calendar named \(title)",
+            ])
+        }
+
+        if let fallback = store.defaultCalendarForNewEvents {
+            return fallback
+        }
+
+        throw NSError(domain: "Calendar", code: 7, userInfo: [
+            NSLocalizedDescriptionKey: "CALENDAR_NOT_FOUND: no default calendar",
+        ])
+    }
+
     private static func resolveRange(startISO: String?, endISO: String?) -> (Date, Date) {
         let formatter = ISO8601DateFormatter()
         let start = startISO.flatMap { formatter.date(from: $0) } ?? Date()