import { z } from "zod";

/**
 * Input shapes for the booking Server Actions. Kept separate from the
 * scheduling services' own TS types deliberately — these describe what
 * crosses the client→server boundary as JSON (dates as ISO strings, no
 * Date objects), the services describe the domain.
 */

export const getAvailableServicesSchema = z.object({
  businessId: z.string(),
  categoryId: z.string().optional(),
  staffId: z.string().optional(),
});

/** Home's Services tab "Book" button — see preselectServiceAction. Only a service id ever crosses this boundary; price/duration/eligibility are always re-read from the database server-side, never trusted from the client. */
export const preselectServiceSchema = z.object({
  serviceId: z.string().min(1),
});

export const getAvailableBarbersSchema = z.object({
  businessId: z.string(),
  serviceIds: z.array(z.string()).min(1),
});

export const getAvailableDatesSchema = z.object({
  businessId: z.string(),
  serviceIds: z.array(z.string()).min(1),
  staffId: z.string().optional(),
  fromDate: z.string(),
  toDate: z.string(),
});

export const getAvailableTimeSlotsSchema = z.object({
  businessId: z.string(),
  serviceIds: z.array(z.string()).min(1),
  staffId: z.string().optional(),
  date: z.string(),
});

export const createBookingSchema = z.object({
  businessId: z.string(),
  customerId: z.string(),
  serviceIds: z.array(z.string()).min(1),
  staffId: z.string().optional(),
  startAt: z.iso.datetime(),
  notes: z.string().optional(),
});

export const rescheduleBookingSchema = z.object({
  appointmentId: z.string(),
  staffId: z.string().optional(),
  startAt: z.iso.datetime(),
});

export const cancelBookingSchema = z.object({
  appointmentId: z.string(),
  cancelledByUserId: z.string().optional(),
  reason: z.string().optional(),
});

export const updateBookingNotesSchema = z.object({
  appointmentId: z.string(),
  notes: z.string().max(2000),
});

// ── Customer booking-flow draft steps ────────────────────────────────────

export const saveServicesStepSchema = z.object({
  businessId: z.string(),
  serviceIds: z.array(z.string()).min(1, "Select at least one service"),
});

export const saveBarberTimeStepSchema = z.object({
  businessId: z.string(),
  staffId: z.string().optional(),
  date: z.string(),
  startAt: z.iso.datetime(),
});

export const saveDetailsStepSchema = z.object({
  businessId: z.string(),
  firstName: z.string().trim().min(1, "First name is required").optional(),
  lastName: z.string().trim().min(1, "Last name is required").optional(),
  email: z.email("Enter a valid email address").optional(),
  phone: z.string().trim().min(1, "Phone number is required").optional(),
  notes: z.string().max(2000).optional(),
  policyAcknowledged: z.boolean(),
});

export const startRebookSchema = z.object({
  appointmentId: z.string(),
  guestToken: z.string().optional(),
});

export const customerCancelSchema = z.object({
  appointmentId: z.string(),
  reason: z.string().max(500).optional(),
  guestToken: z.string().optional(),
});

export const customerRescheduleSchema = z.object({
  appointmentId: z.string(),
  staffId: z.string().optional(),
  startAt: z.iso.datetime(),
  guestToken: z.string().optional(),
});