/**
 * MongoDB configuration using Yup
 * Document storage for sentiment data, raw documents, and unstructured data
 */
import { cleanEnv, envValidators } from './env-utils';

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

/**
 * MongoDB configuration with validation and defaults
 */
export const mongodbConfig = cleanEnv(process.env, {
  // MongoDB Connection
  MONGODB_HOST: str('localhost', 'MongoDB host'),
  MONGODB_PORT: port(27017, 'MongoDB port'),
  MONGODB_DATABASE: str('trading_documents', 'MongoDB database name'),

  // Authentication
  MONGODB_USERNAME: str('trading_admin', 'MongoDB username'),
  MONGODB_PASSWORD: str('', 'MongoDB password'),
  MONGODB_AUTH_SOURCE: str('admin', 'MongoDB authentication database'),

  // Connection URI (alternative to individual settings)
  MONGODB_URI: str('', 'Complete MongoDB connection URI (overrides individual settings)'),

  // Connection Pool Settings
  MONGODB_MAX_POOL_SIZE: num(10, 'Maximum connection pool size'),
  MONGODB_MIN_POOL_SIZE: num(0, 'Minimum connection pool size'),
  MONGODB_MAX_IDLE_TIME: num(30000, 'Maximum idle time for connections in ms'),

  // Timeouts
  MONGODB_CONNECT_TIMEOUT: num(10000, 'Connection timeout in ms'),
  MONGODB_SOCKET_TIMEOUT: num(30000, 'Socket timeout in ms'),
  MONGODB_SERVER_SELECTION_TIMEOUT: num(5000, 'Server selection timeout in ms'),

  // SSL/TLS Settings
  MONGODB_TLS: bool(false, 'Enable TLS for MongoDB connection'),
  MONGODB_TLS_INSECURE: bool(false, 'Allow invalid certificates in TLS mode'),
  MONGODB_TLS_CA_FILE: str('', 'Path to TLS CA certificate file'),

  // Additional Settings
  MONGODB_RETRY_WRITES: bool(true, 'Enable retryable writes'),
  MONGODB_JOURNAL: bool(true, 'Enable write concern journal'),
  MONGODB_READ_PREFERENCE: strWithChoices(
    ['primary', 'primaryPreferred', 'secondary', 'secondaryPreferred', 'nearest'],
    'primary',
    'MongoDB read preference'
  ),
  MONGODB_WRITE_CONCERN: str('majority', 'Write concern level'),
});

// Export typed configuration object
export type MongoDbConfig = typeof mongodbConfig;

// Export individual config values for convenience
export const {
  MONGODB_HOST,
  MONGODB_PORT,
  MONGODB_DATABASE,
  MONGODB_USERNAME,
  MONGODB_PASSWORD,
  MONGODB_AUTH_SOURCE,
  MONGODB_URI,
  MONGODB_MAX_POOL_SIZE,
  MONGODB_MIN_POOL_SIZE,
  MONGODB_MAX_IDLE_TIME,
  MONGODB_CONNECT_TIMEOUT,
  MONGODB_SOCKET_TIMEOUT,
  MONGODB_SERVER_SELECTION_TIMEOUT,
  MONGODB_TLS,
  MONGODB_TLS_INSECURE,
  MONGODB_TLS_CA_FILE,
  MONGODB_RETRY_WRITES,
  MONGODB_JOURNAL,
  MONGODB_READ_PREFERENCE,
  MONGODB_WRITE_CONCERN,
} = mongodbConfig;