export type DeviceStatus = 'idle' | 'busy'

export interface Device {
  device_id: string
  name: string
  status: DeviceStatus
  last_seen: string | null
  created_at: string
}

export interface Terminal {
  terminal_id: string
  name: string
  created_at: string
  last_used_at: string | null
  revoked_at: string | null
}

export interface CreatedTerminal extends Terminal {
  api_key: string // present only in the create response — never again
}

export type CheckinStatus = 'pending' | 'complete' | 'failed'

export interface MarketingSyncSummary {
  provider: string
  status: 'pending' | 'success' | 'failed'
  error: string | null
}

export interface Checkin {
  id: number
  booking_id: string
  guest_id: string | null
  hotel_id: string
  device_id: string | null
  device_name: string | null
  guest_name: string | null
  guest_email: string | null
  pdf_path: string | null
  opted_in: boolean
  status: CheckinStatus
  error: string | null
  submitted_at: string
  marketing_sync: MarketingSyncSummary[] | null
}

export type MarketingProviderId = 'sendy' | 'mailchimp'

export interface SendyConfig {
  api_key?: string
  install_url?: string
  list_id?: string
}

export interface MailchimpConfig {
  api_key?: string
  server_prefix?: string
  audience_id?: string
}

export interface MarketingProvider {
  provider: MarketingProviderId
  active: boolean
  config: SendyConfig | MailchimpConfig
  updated_at: string
  implemented: boolean
}

export interface MarketingSyncRow {
  id: number
  checkin_id: number
  provider: string
  status: 'pending' | 'success' | 'failed'
  attempts: number
  last_attempt_at: string | null
  error: string | null
  created_at: string
  booking_id: string
  guest_name: string | null
  guest_email: string | null
}

export interface AppSettings {
  regcard_custom_field_id: string
  online_checkin_complete_custom_field_id: string
  terms_and_conditions_text: string
  excluded_email_domains: string
}

// ── Guest-facing token flow (routes/checkin.js) ─────────────────────────────
export interface CheckinBooking {
  booking_id: string
  arrival: string | null
  departure: string | null
  site_name: string | null
  tariff_total: number | string | null
  tariff_names: string[]
  nights: number | null
}

// No is_relay flag any more — excluded-domain emails are filtered out
// server-side entirely (matches the legacy system's confirmed behaviour,
// see project_checkin_legacy_plugin), not just flagged. had_excluded_email
// on CheckinGuest below covers "was something hidden" without exposing it.
export interface ExistingEmail {
  content: string
}

export interface CheckinGuest {
  guest_id: string | null
  name: string
  address: string
  phone: string
  existing_emails: ExistingEmail[]
  had_excluded_email: boolean
  car_regos: string[]
}

export interface CheckinTokenData {
  booking: CheckinBooking
  guest: CheckinGuest
  terms_text: string
}

export interface SubmitCheckinPayload {
  email: string
  car_regos: string[]
  opted_in: boolean
  accepted_terms: boolean
  signature_png_base64: string
}

// ── Staff auth ──────────────────────────────────────────────────────────────
export interface User {
  user_id: number
  name: string
  email: string
  is_admin: boolean
  caps: string[] // bare slugs — verify?app=tablet-checkin strips the prefix
}

export function can(user: User, cap: string): boolean {
  return user.is_admin || user.caps.includes(cap)
}