import { RedisJSON, transformRedisJsonNullReply } from '.';

export const FIRST_KEY_INDEX = 1;

export function transformArguments(key: string, path?: string, index?: number): Array<string> {
    const args = ['JSON.ARRPOP', key];

    if (path) {
        args.push(path);

        if (index !== undefined && index !== null) {
            args.push(index.toString());
        }
    }

    return args;
}

export function transformReply(reply: null | string | Array<null | string>): null | RedisJSON | Array<RedisJSON> {
    if (reply === null) return null;

    if (Array.isArray(reply)) {
        return reply.map(transformRedisJsonNullReply);
    }

    return transformRedisJsonNullReply(reply);
}