import type { IDnsProviderClient } from './interfaces.js';
import type {
  TDnsProviderType,
  TDnsProviderCredentials,
} from '../../../ts_interfaces/data/dns-provider.js';
import { CloudflareDnsProvider } from './cloudflare.provider.js';

/**
 * Instantiate a runtime DNS provider client from a stored DnsProviderDoc.
 *
 * @throws if the provider type is not supported.
 */
export function createDnsProvider(
  type: TDnsProviderType,
  credentials: TDnsProviderCredentials,
): IDnsProviderClient {
  switch (type) {
    case 'cloudflare': {
      if (credentials.type !== 'cloudflare') {
        throw new Error(
          `createDnsProvider: type mismatch — provider type is 'cloudflare' but credentials.type is '${credentials.type}'`,
        );
      }
      return new CloudflareDnsProvider(credentials.apiToken);
    }
    default: {
      const _exhaustive: never = type;
      throw new Error(`createDnsProvider: unsupported provider type: ${_exhaustive}`);
    }
  }
}