de5abeceb2
All checks were successful
Build and Publish Docker Image / build-and-push (push) Successful in 49s
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
42 lines
1.1 KiB
TypeScript
42 lines
1.1 KiB
TypeScript
import { PAGINATION_DEFAULT_LIMIT, PAGINATION_MAX_LIMIT } from "../config.ts";
|
|
|
|
/**
|
|
* Parses page/limit query parameters with sensible defaults and bounds.
|
|
* page: clamped to [1, ∞)
|
|
* limit: clamped to [1, 100], defaults to 20
|
|
*/
|
|
export function parsePagination(
|
|
params: URLSearchParams,
|
|
defaultLimit = PAGINATION_DEFAULT_LIMIT,
|
|
): { page: number; limit: number } {
|
|
const page = Math.max(
|
|
1,
|
|
parseInt(params.get("page") ?? "1") || 1,
|
|
);
|
|
const limit = Math.min(
|
|
Math.max(
|
|
1,
|
|
parseInt(params.get("limit") ?? String(defaultLimit)) || defaultLimit,
|
|
),
|
|
PAGINATION_MAX_LIMIT,
|
|
);
|
|
return { page, limit };
|
|
}
|
|
|
|
/** One page of a list, and whether another follows. */
|
|
export interface Page<T> {
|
|
items: T[];
|
|
hasMore: boolean;
|
|
}
|
|
|
|
/**
|
|
* Turns rows fetched with `LIMIT limit + 1` into a page: the extra row, if it
|
|
* came back, is dropped and says there's a next page. No COUNT(*) over the
|
|
* whole list just to know that.
|
|
*/
|
|
export function pageOf<T>(rows: T[], limit: number): Page<T> {
|
|
return rows.length > limit
|
|
? { items: rows.slice(0, limit), hasMore: true }
|
|
: { items: rows, hasMore: false };
|
|
}
|