39 lines
1.0 KiB
TypeScript
39 lines
1.0 KiB
TypeScript
import type { SessionBoundary } from '@/lib/types';
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import pool from '@/lib/db';
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/**
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* Returns session-start timestamps where any gap > 30 min exists
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* in the global tick_timing timeline.
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*/
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export async function getSessionBoundaries(from: Date, to: Date): Promise<SessionBoundary[]> {
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const result = await pool.query<{ real_time: Date; game_tick: string }>(
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`SELECT real_time, game_tick
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FROM tick_timing
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WHERE real_time BETWEEN $1 AND $2
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ORDER BY real_time ASC`,
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[from, to],
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);
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const rows = result.rows;
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if (rows.length === 0) return [];
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const boundaries: SessionBoundary[] = [
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{
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real_time: rows[0].real_time.toISOString(),
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game_tick: parseInt(rows[0].game_tick, 10),
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},
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];
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for (let i = 1; i < rows.length; i++) {
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if (rows[i].real_time.getTime() - rows[i - 1].real_time.getTime() > 30 * 60 * 1000) {
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boundaries.push({
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real_time: rows[i].real_time.toISOString(),
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game_tick: parseInt(rows[i].game_tick, 10),
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});
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}
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}
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return boundaries;
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}
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