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Leibale 8d615e99ed wip
2023-04-27 19:17:11 -04:00

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1.2 KiB
TypeScript

import { RedisArgument, ArrayReply, BlobStringReply, Command } from '../RESP/types';
export interface SortOptions {
BY?: RedisArgument;
LIMIT?: {
offset: number;
count: number;
};
GET?: RedisArgument | Array<RedisArgument>;
DIRECTION?: 'ASC' | 'DESC';
ALPHA?: boolean;
}
export function transformSortArguments(
command: RedisArgument,
key: RedisArgument,
options?: SortOptions
) {
const args: Array<RedisArgument> = [command, key];
if (options?.BY) {
args.push('BY', options.BY);
}
if (options?.LIMIT) {
args.push(
'LIMIT',
options.LIMIT.offset.toString(),
options.LIMIT.count.toString()
);
}
if (options?.GET) {
if (Array.isArray(options.GET)) {
for (const pattern of options.GET) {
args.push('GET', pattern);
}
} else {
args.push('GET', options.GET);
}
}
if (options?.DIRECTION) {
args.push(options.DIRECTION);
}
if (options?.ALPHA) {
args.push('ALPHA');
}
return args;
}
export default {
FIRST_KEY_INDEX: 1,
IS_READ_ONLY: true,
transformArguments: transformSortArguments.bind(undefined, 'SORT'),
transformReply: undefined as unknown as () => ArrayReply<BlobStringReply>
} as const satisfies Command;