Enhance appointment scheduling by including timezone support in the schema and payload. Update the scheduleAppointment function to automatically use the user's timezone if not specified, improving accuracy in appointment scheduling.

lib/actions/appointments.ts

@@ -392,9 +392,14 @@ export async function scheduleAppointment(id: string, input: ScheduleAppointment
     throw new Error("Authentication required.");
   }
 
+  // Get user's timezone
+  const userTimezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+
   // Build payload with defaults
   const payload: any = {
     ...input,
+    // Always include timezone when scheduling with datetime
+    ...(input.scheduled_datetime && { timezone: input.timezone || userTimezone }),
     // Default create_jitsi_meeting to true if not specified
     create_jitsi_meeting: input.create_jitsi_meeting !== undefined ? input.create_jitsi_meeting : true,
   };

lib/schema/appointments.ts

@@ -37,11 +37,12 @@ export type CreateAppointmentInput = z.infer<typeof createAppointmentSchema>;
 
 // Schedule Appointment Schema (Admin only)
 // Supports two scheduling methods:
-// 1. Direct datetime: scheduled_datetime + scheduled_duration
+// 1. Direct datetime: scheduled_datetime + scheduled_duration + timezone
 // 2. Date and slot: date_str + time_slot + scheduled_duration
 export const scheduleAppointmentSchema = z.object({
   scheduled_datetime: z.string().datetime("Invalid datetime format").optional(),
   scheduled_duration: z.number().int().positive().optional(),
+  timezone: z.string().optional(),
   date_str: z.string().regex(/^\d{4}-\d{2}-\d{2}$/, "Date must be in YYYY-MM-DD format").optional(),
   time_slot: z.enum(["morning", "afternoon", "evening"]).optional(),
   create_jitsi_meeting: z.boolean().optional(),