feat(widget): add recurrence lookup endpoint (GET /api/widget/recurrence)

1 files changed, 22 insertions, 0 deletions

diff --git a/internal/handlers/widget.go b/internal/handlers/widget.go
index 29124fb..6b1e774 100644
--- a/internal/handlers/widget.go
+++ b/internal/handlers/widget.go
@@ -195,6 +195,28 @@ func (h *Handler) HandleWidgetComplete(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusOK)
 }
 
+// HandleWidgetRecurrence looks up and formats a recurring calendar event's schedule.
+func (h *Handler) HandleWidgetRecurrence(w http.ResponseWriter, r *http.Request) {
+	recurringEventID := r.URL.Query().Get("recurring_event_id")
+	if recurringEventID == "" {
+		http.Error(w, "recurring_event_id is required", http.StatusBadRequest)
+		return
+	}
+
+	recurrence, err := h.googleCalendarClient.GetRecurrenceRule(r.Context(), recurringEventID)
+	if err != nil {
+		http.Error(w, "recurring event not found", http.StatusNotFound)
+		return
+	}
+
+	resp := struct {
+		Recurrence string `json:"recurrence"`
+	}{Recurrence: recurrence}
+
+	w.Header().Set("Content-Type", "application/json")
+	_ = json.NewEncoder(w).Encode(resp)
+}
+
 // HandleWidgetAdd creates a new undated native task from the widget's quick-add sheet.
 func (h *Handler) HandleWidgetAdd(w http.ResponseWriter, r *http.Request) {
 	var req widgetAddRequest