/**
 * Centralized configuration constants
 */

export const CONFIG = {
  // Stats collection (server/services/stats.js)
  // Round-robin one-shot samples — not full-fleet stream:true (Dozzle-style streams
  // keep dockerd busy ~1Hz × N containers). See Settings → Performance.
  STATS: {
    INTERVAL_MS: 5000,              // Min gap between allStats broadcasts
    ACTIVE_INTERVAL_MS: 5000,       // Idle gap after each sample batch completes
    IDLE_INTERVAL_MS: 5000,         // Reserved (peer-idle uses full pause)
    CACHE_TTL_MS: 2000,             // Per-container broadcast cache TTL
    CONCURRENCY: 2,                 // Max parallel one-shot stats to dockerd
    SAMPLES_PER_TICK: 4,            // Max containers sampled per tick (round-robin)
    LIST_INTERVAL_MS: 15000,        // How often to re-list containers
    SMOOTHING_FACTOR: 0.2,          // Client-side smoothing (if used)
  },

  // UI updates
  UI: {
    DEBOUNCE_MS: 300,                // Debounce time for UI updates
    SKELETON_LOADER_DELAY: 200,      // Delay before showing skeleton
    ALERT_DURATION_MS: 5000,         // Alert display duration
  },

  // Connection
  CONNECTION: {
    TIMEOUT_MS: 30000,               // Connection timeout
    /** Fixed delay between automatic peer reconnect attempts */
    RECONNECT_DELAY_MS: 5000,
    /**
     * Default max automatic reconnect attempts when Settings has no override.
     * 0 = unlimited. Runtime/UI caps at 8 (see Settings → Behavior).
     * Client default preference is 8 tries via settings cache.
     */
    RECONNECT_MAX_ATTEMPTS: 0,
    HEALTH_CHECK_INTERVAL_MS: 10000,  // Health check interval
  },

  // Container operations
  CONTAINER: {
    MAX_NAME_LENGTH: 63,
    MIN_NAME_LENGTH: 1,
    MAX_IMAGE_LENGTH: 255,
    /** RPC timeout for lifecycle ops (remove/stop/restart/…) — longer than dial timeout */
    OPERATION_TIMEOUT_MS: 120000,
  },

  // Terminal
  TERMINAL: {
    MIN_HEIGHT: 150,
    MAX_HEIGHT_RATIO: 0.9,          // Max height as ratio of window
    SCROLLBACK_LINES: 10000,
    HISTORY_SIZE: 1000,
  },

  // Storage
  STORAGE: {
    COOKIE_SIZE_LIMIT: 4000,         // 4KB cookie limit (legacy)
    CONNECTIONS_KEY: 'peardock_connections', // localStorage mirror key
    USE_LOCALSTORAGE_KEY: 'peardock_use_localstorage',
    TEMPLATES_KEY: 'peardock_templates', // legacy LS; primary is cache/templates.json
    /** Desktop peer roster: ~/.config/peardock/cache/peers.json */
    PEERS_CACHE_REL: '.config/peardock/cache/peers.json',
    /** Client prefs (theme, density, filters, table cols, …): ~/.config/peardock/cache/settings.json */
    SETTINGS_CACHE_REL: '.config/peardock/cache/settings.json',
    /** Saved deploy templates: ~/.config/peardock/cache/templates.json */
    TEMPLATES_CACHE_REL: '.config/peardock/cache/templates.json',
    /** Notification center history: ~/.config/peardock/cache/notifications.json */
    NOTIFICATIONS_CACHE_REL: '.config/peardock/cache/notifications.json',
    /** Local backup history: ~/.config/peardock/cache/backups.json */
    BACKUPS_CACHE_REL: '.config/peardock/cache/backups.json',
    /** Server alerts snapshot (synced from admin export): ~/.config/peardock/cache/alerts.json */
    ALERTS_CACHE_REL: '.config/peardock/cache/alerts.json',
    /** localStorage key mirrored from settings cache */
    SETTINGS_KEY: 'peardock.settings.v1',
  },

  // Docker command validation
  DOCKER: {
    MAX_COMMAND_LENGTH: 500,
    ALLOWED_COMMANDS: [
      'ps', 'images', 'volumes', 'networks', 'info', 'version',
      'logs', 'inspect', 'stats', 'top', 'diff', 'port',
      'history', 'search', 'events', 'system', 'help'
    ],
    BLOCKED_COMMANDS: [
      'exec', 'run', 'create', 'start', 'stop', 'restart', 'kill',
      'rm', 'rmi', 'prune', 'build', 'commit', 'push', 'pull',
      'tag', 'load', 'save', 'import', 'export', 'cp', 'update'
    ],
  },

  // Status codes
  STATUS: {
    CONNECTED: 'connected',
    DISCONNECTED: 'disconnected',
    CONNECTING: 'connecting',
    ERROR: 'error',
  },

  // Error codes
  ERROR_CODES: {
    RATE_LIMIT_EXCEEDED: 'RATE_LIMIT_EXCEEDED',
    INVALID_INPUT: 'INVALID_INPUT',
    CONNECTION_FAILED: 'CONNECTION_FAILED',
    OPERATION_TIMEOUT: 'OPERATION_TIMEOUT',
    PERMISSION_DENIED: 'PERMISSION_DENIED',
    UNKNOWN_ERROR: 'UNKNOWN_ERROR',
  },
};