export type NodeStatus = "online" | "offline" | "recording" | "unconfigured";
export type ApprovalStatus = "pending" | "approved" | "rejected";
export type UserRole = "admin" | "operator" | "viewer";

export interface UserRecord {
  uid: string;
  email: string | null;
  display_name: string | null;
  role: UserRole;
  owned_node_ids: string[];
  disabled: boolean;
  creation_time: string | null;
  last_sign_in: string | null;
  discord_linked: boolean;
  discord_username: string | null;
  discord_user_id: string | null;
  // only present on GET /admin/users/{uid}
  sessions?: UserSession[];
  // only present on POST /admin/users response
  invite_link?: string | null;
}

export interface UserSession {
  session_id: string;
  uid: string;
  email: string;
  timestamp: string;
  ip: string | null;
  user_agent: string | null;
}

export interface AuditEntry {
  log_id: string;
  action: string;
  actor_uid: string;
  actor_email: string;
  target_uid: string | null;
  target_email: string | null;
  details: Record<string, unknown>;
  timestamp: string;
}

export interface NodeRecord {
  node_id: string;
  name: string;
  lat: number;
  lon: number;
  status: NodeStatus;
  configured: boolean;
  last_seen: string | null;
  assigned_system_id: string | null;
  approval_status: ApprovalStatus | null;
  hardware_preset?: string;
  ppm_override?: number | null;
  node_type?: string;
  enforce_override_timeout?: boolean;
  is_overridden?: boolean;
  override_system_id?: string | null;
  override_timeout_at?: string | null;
}

export interface VocabularyPendingTerm {
  term: string;
  source: "induction" | "correction";
  added_at: string;
  source_call_ids?: string[];
}

export interface SystemRecord {
  system_id: string;
  name: string;
  type: string; // P25 | DMR | NBFM
  config: Record<string, unknown>;
  vocabulary?: string[];
  vocabulary_pending?: VocabularyPendingTerm[];
  vocabulary_bootstrapped?: boolean;
  ten_codes?: Record<string, string>; // {"10-10": "Commercial Alarm", ...}
  preferred_token_id?: string | null;
}

export interface TranscriptSegment {
  start: number;
  end: number;
  text: string;
}

export interface CallRecord {
  call_id: string;
  node_id: string;
  system_id: string | null;
  talkgroup_id: number | null;
  talkgroup_name: string | null;
  freq: number | null;
  started_at: string;
  ended_at: string | null;
  /** Private gs:// object location. Present on the Firestore doc; not playable. */
  audio_gcs_uri?: string | null;
  /**
   * Short-lived playback link. Minted per read by the API — only populated on
   * calls fetched via c2api, never on docs read straight from Firestore.
   * On pre-fix docs this holds a legacy (unplayable) gs:// URI instead.
   */
  audio_url: string | null;
  transcript: string | null;
  transcript_corrected: string | null;
  segments: TranscriptSegment[] | null;
  /** New: one entry per scene detected in the recording. */
  incident_ids: string[];
  /** Legacy field — present on calls recorded before the multi-scene migration. */
  incident_id?: string | null;
  location: string | null;
  /** Per-call geocode, written by intelligence.py. Powers the incident-path polyline on the map. */
  location_coords?: { lat: number; lng: number } | null;
  /** Unit callsigns mentioned in this specific transmission (e.g. "15-9", "E-41"). */
  units?: string[];
  vehicles?: string[];
  /** Units this call reported as clearing/back in service. */
  cleared_units?: string[];
  /** Set when dedup.py identifies this as a second node's recording of the same transmission — the canonical copy has this null. */
  duplicate_of?: string | null;
  /** Radio source address, when the system exposes it. */
  srcaddr?: string | null;
  tags: string[];
  status: "active" | "ended";
  /** Four-level ladder: routine | minor | moderate | major. Legacy docs may still carry "unknown". */
  severity?: string | null;
  // Correlation debug — written by the correlator, present after a call is linked
  corr_path?: string | null;
  corr_score?: number | null;
  corr_distance_km?: number | null;
  corr_incident_idle_min?: number | null;
  corr_shared_units?: number | null;
  corr_candidates?: number | null;
}

export interface IncidentRecord {
  incident_id: string;
  title: string | null;
  type: string | null;
  status: "active" | "resolved";
  location: string | null;
  location_coords: { lat: number; lng: number } | null;
  call_ids: string[];
  system_ids: string[];
  talkgroup_ids: string[];
  /** Omitted on incident docs written before these fields existed. */
  units?: string[];
  vehicles?: string[];
  /** Units currently believed on scene — maintained by incident_correlator.py `_attach`. */
  units_active?: string[];
  /** Units that reported clearing/back in service on this incident. */
  units_cleared?: string[];
  /** Free-text location mentions accumulated across the incident's calls, beyond the primary `location`. */
  location_mentions?: string[];
  /** ISO timestamp of the last thin/status-only call attached (doesn't refresh `updated_at`). */
  last_thin_at?: string | null;
  severity: string | null;
  started_at: string;
  updated_at: string;
  summary: string | null;
  tags: string[];
}

export interface AlertRule {
  rule_id: string;
  name: string;
  keywords: string[];
  talkgroup_ids: number[];
  enabled: boolean;
  discord_webhook: string | null;
  created_at?: string;
}

export interface TripEvent {
  event_id: string;
  trip_id: string;
  title: string;
  date: string;
  start_time: string | null;
  end_time: string | null;
  location: string;
  location_inherited: boolean;
  maps_link: string | null;
  place_id: string | null;
  notes: string | null;
  tags: string[];
  attendees: Record<string, string>;
  created_at: string;
}

export interface PlaceResult {
  name: string;
  address: string;
  place_id: string;
  lat: number;
  lng: number;
  maps_link: string;
  rating?: number;
}

export interface TripRecord {
  trip_id: string;
  name: string;
  location: string;
  maps_link: string | null;
  start_date: string;
  end_date: string;
  attendees: Record<string, string>;
  available_tags: string[];
  overlap_tags: string[];
  visibility: "public" | "private";
  invited_discord_ids: string[];
  created_at: string;
  events?: TripEvent[];
}

export interface AlertEvent {
  alert_id: string;
  rule_id: string;
  rule_name: string;
  call_id: string;
  node_id: string;
  talkgroup_id: number | null;
  talkgroup_name: string | null;
  matched_keywords: string[];
  transcript_snippet: string | null;
  triggered_at: string;
  acknowledged: boolean;
}

/**
 * Ground truth about the area a system or talkgroup covers, handed to the
 * transcript corrector so it can recognise local street, town and business
 * names that Whisper mangles (server-26#36).
 *
 * Set on the system, and optionally narrowed per talkgroup inside
 * `config.talkgroups[]` — the talkgroup's entries rank ABOVE the system's, so
 * a multi-county system can be specific per channel without its wider list
 * burying the detail.
 */
export interface LocalKnowledgeEntry {
  term: string;
  meaning?: string | null;
}

export interface AreaContext {
  // Set by an operator. Every field nullable on purpose: which SCOPE gets
  // filled is the declaration of how homogeneous the system is. A one-town
  // system is described once here and inherited by every talkgroup; a
  // statewide one is left empty here and described per talkgroup.
  municipality?: string;
  county?: string;
  state?: string;
  local_knowledge?: LocalKnowledgeEntry[];
  // Written by the backend, read-only here. Absent means the place is unset or
  // too wide to discriminate, and location verification skips entirely
  // (server-26#37) — never send these back.
  center?: { lat: number; lng: number };
  radius_km?: number;
  resolved_from?: string;
  resolved_at?: string;
}

/** A term the verifier or the induction loop proposed for one talkgroup. */
export interface PendingLocalTerm {
  term: string;
  meaning?: string | null;
  source: string;
  added_at: string;
  source_call_ids?: string[];
}

export interface TalkgroupPending {
  talkgroup_id: number;
  talkgroup_name?: string;
  pending: PendingLocalTerm[];
}