// Mirrors api/internal/state.Snapshot. Keep field names aligned; the
// Go side is authoritative.

export type PoolStats = {
  start: number;
  update: number;
  workers: number;
  users: number;
  disconnected: number;
  shares: number;
  accepted: number;
  rejected: number;
  dsps1: number;
  dsps5: number;
  dsps15: number;
  dsps60: number;
  dsps360: number;
  dsps1440: number;
  dsps10080: number;
};

export type User = {
  user: string;
  id: number;
  workers: number;
  bestdiff: number;
  bestever: number;
  dsps1: number;
  dsps5: number;
  dsps60: number;
  dsps1440: number;
  dsps10080: number;
  lastshare: number;
};

export type Worker = {
  user: string;
  worker: string;
  id: number;
  dsps1: number;
  dsps5: number;
  dsps60: number;
  dsps1440: number;
  lastshare: number;
  bestdiff: number;
  bestever: number;
  mindiff: number;
  idle: boolean;
};

export type StratumClient = {
  id: number;
  enonce1: string;
  diff: number;
  dsps1: number;
  dsps5: number;
  dsps60: number;
  dsps1440: number;
  lastshare: number;
  starttime: number;
  // Source IP, NOT the BTC payout address. ckpool sets this from
  // inet_ntop(client_addr) in connector.c — see stratum_add_instance.
  // The BTC address comes from `workername` (or the joined Worker.user).
  address: string;
  subscribed: boolean;
  authorised: boolean;
  idle: boolean;
  useragent: string;
  workername: string;
  userid: number;
  // Index into ckpool's serverurl[] array; identifies which stratum
  // bind the client connected on. We use this to tag TLS clients:
  // index 0 is the public plaintext bind, index 1 is the loopback-only
  // bind that stunnel forwards TLS traffic to.
  server: number;
  bestdiff: number;
};

export type BlockchainInfo = {
  chain: string;
  blocks: number;
  headers: number;
  bestblockhash: string;
  difficulty: number;
  mediantime: number;
  verificationprogress: number;
  initialblockdownload: boolean;
};

export type BlockRecord = {
  height: number;
  hash?: string;
  reward_btc?: number;
  found_at: string; // RFC 3339
  source: string;
  share_diff?: number;
  // Set when the periodic chain reconciler finds the recorded hash no
  // longer matches the canonical block at this height (network reorged
  // us out). UI renders these strikethrough.
  orphaned_at?: string; // RFC 3339, omitted when zero
};

export type HashratePoint = {
  t: number; // unix seconds
  v: number; // H/s
};

export type Snapshot = {
  generated_at: string;
  pool: PoolStats | null;
  uptime_seconds: number;
  users: User[] | null;
  workers: Worker[] | null;
  clients: StratumClient[] | null;
  hashrate_hs_1m: number;
  hashrate_hs_5m: number;
  hashrate_hs_1h: number;
  hashrate_hs_24h: number;
  best_diff: number;
  cumulative_shares: number;
  next_block_reward_btc: number;
  next_difficulty_percent: number;
  chain: BlockchainInfo | null;
  network_hashrate_hs: number;
  recent_blocks?: BlockRecord[];
  hashrate_history?: HashratePoint[];
  // Optional override for explorer links. Empty/undefined means the
  // UI falls back to its mempool.space defaults.
  mempool_base_url?: string;
  // Submission attempt tracking — count of "Possible block solve"
  // log lines vs "Solved and confirmed" lines. A growing gap means
  // submissions are being rejected by bitcoind.
  block_submit_attempts: number;
  block_submits_confirmed: number;
  ckpool_ok: boolean;
  bitcoin_ok: boolean;
  last_error?: string;
};