import { Types } from "mongoose";

export interface QueueDepthsType {
  incident: number;
  status: number;
  vehicle: number;
  total: number;
}

export interface TCSendHealthType {
  lastSuccessfulIncidentSend?: Date;
  lastSuccessfulUnitStatusSend?: Date;
  sendFailuresDelta: number;
  lastSendError: string;
}

export interface WriteBackHealthType {
  attemptsDelta: number;
  failuresDelta: number;
  lastSuccessfulWriteBack?: Date;
  lastError: string;
}

export interface SyncHealthType {
  lastCacheRefresh?: Date;
  cacheAgeSeconds: number;
  consecutiveEmptyPolls: number;
  lastPollChanges: number;
  incidentCacheGrowthDelta: number;
}

export interface StatusBeaconType {
  _id: Types.ObjectId;
  departmentId: string;
  // Identity
  integration: string;
  interfaceStartTime: Date; // UTC time the integration service process started; never resets — use for uptime
  keepAliveIntervalSecs: number; // this box's beacon cadence; "beacon missing" = no beacon for 2x this + 15s
  // Health State
  healthState: string;
  triggerReason: string;
  consecutiveFailures: number;
  consecutiveSuccesses: number;
  totalFailuresSinceLastHealthy: number;
  outageStartTime?: Date; // UTC time the current outage began; absent when healthy
  // Cycle Metrics
  pollCycle: number;
  lastPollMs: number;
  activeIncidents: number;
  activeUnits: number;
  // Data Flow Deltas
  incidentsDelta: number;
  unitStatusDelta: number;
  // Queue Depths
  queueDepths: QueueDepthsType;
  queueAges: Record<string, unknown>; // oldest message age per relay queue (beacon 1.2+)
  queueDroppedDelta: number; // messages dropped after max retries since the last beacon
  // Auth Token Health (Bearer auth only; null otherwise)
  tokenAgeSecs?: number;
  tokenExpiresAt?: Date;
  // TC Send Health
  tCSend: TCSendHealthType;
  // Write-back Health
  writeBack: WriteBackHealthType;
  // Sync Health
  sync: SyncHealthType;
  // Diagnostics (beacon 1.2+) — free-form while the wire dialect settles; display only
  channels: Record<string, unknown>; // per target (incident, vehicleStatus, avl, ...): armed, lastSuccessUtc, ageSecs, ...
  pollers: Record<string, unknown>; // TC → CAD write-back pollers (status, event, avl)
  auth: Record<string, unknown>; // per-message key failures
  restartPoll: Record<string, unknown>;
  clockSync: Record<string, unknown>;
  // Debug & Config
  debugPushActive: boolean;
  lastConfigSave?: Date;
  lastConfigSaveFile: string;
  // Error & Version
  lastError: string;
  interfaceVersion: string;
  cadVersion: string;
  unifiedVersion: string;
  beaconVersion: string; // beacon payload dialect, e.g. "1.2.22"
  // System (managed by Mongoose timestamps)
  createdAt: Date;
  updatedAt: Date;
}

export interface StatusBeaconTransitionType {
  _id: Types.ObjectId;
  departmentId: string;
  integration: string;
  triggerReason: string;
  healthState: string;
  consecutiveFailures: number;
  totalFailuresSinceLastHealthy: number;
  lastError: string;
  // System (managed by Mongoose timestamps)
  createdAt: Date;
  updatedAt: Date;
}