import { CommandParser } from '../client/parser';
import { ArrayReply, TuplesToMapReply, BlobStringReply, NumberReply, UnwrapReply, Resp2Reply, Command } from '../RESP/types';

export type ModuleListReply = ArrayReply<TuplesToMapReply<[
  [BlobStringReply<'name'>, BlobStringReply],
  [BlobStringReply<'ver'>, NumberReply],
]>>;

export default {
  NOT_KEYED_COMMAND: true,
  IS_READ_ONLY: true,
  /**
   * Constructs the MODULE LIST command
   * 
   * @param parser - The command parser
   * @see https://redis.io/commands/module-list/
   */
  parseCommand(parser: CommandParser) {
    parser.push('MODULE', 'LIST');
  },
  transformReply: {
    2: (reply: UnwrapReply<Resp2Reply<ModuleListReply>>) => {
      return reply.map(module => {
        const unwrapped = module as unknown as UnwrapReply<typeof module>;
        return {
          name: unwrapped[1],
          ver: unwrapped[3]
        };
      });
    },
    3: undefined as unknown as () => ModuleListReply
  }
} as const satisfies Command;