/**
 * Dragonfly (Redis replacement) configuration using Yup
 * High-performance caching and event streaming
 */
import { cleanEnv, envValidators } from './env-utils';

const { str, port, num, bool } = envValidators;

/**
 * Dragonfly configuration with validation and defaults
 */
export const dragonflyConfig = cleanEnv(process.env, {
  // Dragonfly Connection
  DRAGONFLY_HOST: str('localhost', 'Dragonfly host'),
  DRAGONFLY_PORT: port(6379, 'Dragonfly port'),
  DRAGONFLY_PASSWORD: str('', 'Dragonfly password (if auth enabled)'),
  DRAGONFLY_USERNAME: str('', 'Dragonfly username (if ACL enabled)'),

  // Database Selection
  DRAGONFLY_DATABASE: num(0, 'Dragonfly database number (0-15)'),

  // Connection Pool Settings
  DRAGONFLY_MAX_RETRIES: num(3, 'Maximum retry attempts'),
  DRAGONFLY_RETRY_DELAY: num(50, 'Retry delay in ms'),
  DRAGONFLY_CONNECT_TIMEOUT: num(10000, 'Connection timeout in ms'),
  DRAGONFLY_COMMAND_TIMEOUT: num(5000, 'Command timeout in ms'),

  // Pool Configuration
  DRAGONFLY_POOL_SIZE: num(10, 'Connection pool size'),
  DRAGONFLY_POOL_MIN: num(1, 'Minimum pool connections'),
  DRAGONFLY_POOL_MAX: num(20, 'Maximum pool connections'),

  // TLS Settings
  DRAGONFLY_TLS: bool(false, 'Enable TLS for Dragonfly connection'),
  DRAGONFLY_TLS_CERT_FILE: str('', 'Path to TLS certificate file'),
  DRAGONFLY_TLS_KEY_FILE: str('', 'Path to TLS key file'),
  DRAGONFLY_TLS_CA_FILE: str('', 'Path to TLS CA certificate file'),
  DRAGONFLY_TLS_SKIP_VERIFY: bool(false, 'Skip TLS certificate verification'),

  // Performance Settings
  DRAGONFLY_ENABLE_KEEPALIVE: bool(true, 'Enable TCP keepalive'),
  DRAGONFLY_KEEPALIVE_INTERVAL: num(60, 'Keepalive interval in seconds'),

  // Clustering (if using cluster mode)
  DRAGONFLY_CLUSTER_MODE: bool(false, 'Enable cluster mode'),
  DRAGONFLY_CLUSTER_NODES: str('', 'Comma-separated list of cluster nodes (host:port)'),

  // Memory and Cache Settings
  DRAGONFLY_MAX_MEMORY: str('2gb', 'Maximum memory usage'),
  DRAGONFLY_CACHE_MODE: bool(true, 'Enable cache mode'),
});

// Export typed configuration object
export type DragonflyConfig = typeof dragonflyConfig;

// Export individual config values for convenience
export const {
  DRAGONFLY_HOST,
  DRAGONFLY_PORT,
  DRAGONFLY_PASSWORD,
  DRAGONFLY_USERNAME,
  DRAGONFLY_DATABASE,
  DRAGONFLY_MAX_RETRIES,
  DRAGONFLY_RETRY_DELAY,
  DRAGONFLY_CONNECT_TIMEOUT,
  DRAGONFLY_COMMAND_TIMEOUT,
  DRAGONFLY_POOL_SIZE,
  DRAGONFLY_POOL_MIN,
  DRAGONFLY_POOL_MAX,
  DRAGONFLY_TLS,
  DRAGONFLY_TLS_CERT_FILE,
  DRAGONFLY_TLS_KEY_FILE,
  DRAGONFLY_TLS_CA_FILE,
  DRAGONFLY_TLS_SKIP_VERIFY,
  DRAGONFLY_ENABLE_KEEPALIVE,
  DRAGONFLY_KEEPALIVE_INTERVAL,
  DRAGONFLY_CLUSTER_MODE,
  DRAGONFLY_CLUSTER_NODES,
  DRAGONFLY_MAX_MEMORY,
  DRAGONFLY_CACHE_MODE,
} = dragonflyConfig;