import { CommandParser } from '../client/parser';
import { RedisArgument, BlobStringReply, NullReply, Command } from '../RESP/types';
import { ListSide } from './generic-transformers';

export default {
  IS_READ_ONLY: false,
  /**
   * Pop an element from a list, push it to another list and return it; or block until one is available
   * @param parser - The Redis command parser
   * @param source - Key of the source list
   * @param destination - Key of the destination list
   * @param sourceSide - Side of source list to pop from (LEFT or RIGHT)
   * @param destinationSide - Side of destination list to push to (LEFT or RIGHT)
   * @param timeout - Timeout in seconds, 0 to block indefinitely
   */
  parseCommand(
    parser: CommandParser,
    source: RedisArgument,
    destination: RedisArgument,
    sourceSide: ListSide,
    destinationSide: ListSide,
    timeout: number
  ) {
    parser.push('BLMOVE');
    parser.pushKeys([source, destination]);
    parser.push(sourceSide, destinationSide, timeout.toString())
  },
  transformReply: undefined as unknown as () => BlobStringReply | NullReply
} as const satisfies Command;