osu! goals: real play counts from my most-played list (weekly), BPM range from the .osu timing points

src/lib/game-tracker/OsuGoals.svelte

@@ -156,7 +156,11 @@
 						{#if g.starsHr != null}<span class="dim" title="star rating with HR"
 								>HR {nf(g.starsHr, 2)}★</span
 							>{/if}
-						<span title="BPM"><Music size={12} aria-hidden="true" />{nf(g.bpm)}</span>
+						<span
+							title={g.bpmMin != null && g.bpmMax != null && g.bpmMax - g.bpmMin >= 1
+								? `BPM ${nf(g.bpmMin)}–${nf(g.bpmMax)}`
+								: 'BPM'}><Music size={12} aria-hidden="true" />{nf(g.bpm)}</span
+						>
 						<span title="length"
 							><Clock size={12} aria-hidden="true" />{formatLength(g.lengthSeconds)}</span
 						>

src/lib/game-tracker/osu-goals.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest';
 import {
 	bestScore,
+	bpmRange,
 	focusTags,
 	goalAchieved,
 	goalProgress,
@@ -21,6 +22,21 @@ const osu = (objects: string[]) =>
 		...objects
 	].join('\n');
 
+describe('bpmRange', () => {
+	it('reads uninherited timing points only', () => {
+		const text = [
+			'[TimingPoints]',
+			'0,300,4,2,0,60,1,0',
+			'1000,-50,4,2,0,60,0,0',
+			'2000,500,4,2,0,60,1,0',
+			'',
+			'[HitObjects]'
+		].join('\n');
+		expect(bpmRange(text)).toEqual({ min: 120, max: 200 });
+		expect(bpmRange('osu file format v14')).toBe(null);
+	});
+});
+
 describe('streamStats', () => {
 	it('counts runs of circles a 1/4 beat apart', () => {
 		// 200 BPM: beat 300 ms, 1/4 = 75 ms. A run of 6, a gap, then a run of 3.

src/lib/game-tracker/osu-goals.ts

@@ -22,6 +22,21 @@ export const FAST_BPM = 200;
  * Streams in a .osu file: consecutive circles at most a 1/4 beat apart (5% slack) form a run.
  * Returns the longest run and the number of circles in runs of 5 or more.
  */
+/** BPM range from the uninherited timing points of an .osu file (null when there are none). */
+export function bpmRange(osu: string): { min: number; max: number } | null {
+	const start = osu.indexOf('[TimingPoints]');
+	if (start < 0) return null;
+	const rest = osu.slice(start + 14);
+	const end = rest.search(/^\[/m);
+	const bpms = (end < 0 ? rest : rest.slice(0, end))
+		.split(/\r?\n/)
+		.map((l) => l.trim().split(','))
+		.filter((p) => p.length >= 2 && Number(p[1]) > 0 && (p.length < 7 || p[6] !== '0'))
+		.map((p) => Math.round((60000 / Number(p[1])) * 10) / 10)
+		.filter((b) => Number.isFinite(b) && b > 0);
+	return bpms.length ? { min: Math.min(...bpms), max: Math.max(...bpms) } : null;
+}
+
 export function streamStats(osu: string): { longest: number; notes: number } {
 	const section = (name: string) => {
 		const start = osu.indexOf(`[${name}]`);

src/lib/server/osu-goals/load.ts

@@ -27,6 +27,8 @@ export async function loadOsuGoals() {
 		version: r.version,
 		status: r.status,
 		bpm: r.bpm,
+		bpmMin: r.bpmMin,
+		bpmMax: r.bpmMax,
 		lengthSeconds: r.lengthSeconds,
 		ar: r.ar,
 		od: r.od,

src/lib/server/osu-goals/refresh.ts

@@ -9,6 +9,7 @@ import {
 	goalAchieved,
 	goalProgress,
 	parseScore,
+	bpmRange,
 	streamStats,
 	type OsuScore
 } from '#lib/game-tracker/osu-goals.js';
@@ -95,17 +96,21 @@ export async function fetchMetadata(beatmapId: number) {
 		return typeof v === 'number' ? Math.round(v * 100) / 100 : null;
 	};
 	let stream = { longest: null as number | null, notes: null as number | null };
+	let range: { min: number; max: number } | null = null;
 	try {
 		const res = await fetch(`https://osu.ppy.sh/osu/${beatmapId}`, {
 			signal: AbortSignal.timeout(12000)
 		});
-		if (res.ok) stream = streamStats(await res.text());
+		if (res.ok) {
+			const text = await res.text();
+			stream = streamStats(text);
+			range = bpmRange(text);
+		}
 	} catch {
 		// Streams just stay unknown.
 	}
 	const covers = (set.covers ?? {}) as Json;
 	const owners = Array.isArray(diff.owners) ? (diff.owners as Json[]) : [];
-	const bpms = Array.isArray(diff.bpm_list) ? (diff.bpm_list as number[]) : [];
 	return {
 		beatmapsetId: setId,
 		beatmapId,
@@ -127,8 +132,8 @@ export async function fetchMetadata(beatmapId: number) {
 		tags: (str(set.tags) ?? '').split(/\s+/).filter(Boolean),
 		userTags: await communityTags(diff.top_tag_ids),
 		bpm: num(diff.bpm) ?? num(set.bpm),
-		bpmMin: bpms.length ? Math.min(...bpms) : null,
+		bpmMin: range?.min ?? null,
-		bpmMax: bpms.length ? Math.max(...bpms) : null,
+		bpmMax: range?.max ?? null,
 		lengthSeconds: int(diff.total_length),
 		drainSeconds: int(diff.hit_length),
 		ar: num(diff.ar),
@@ -173,8 +178,24 @@ export async function fetchMyScores(beatmapId: number): Promise<OsuScore[]> {
 	}
 }
 
+/** How often I played each of `ids` (users/{id}/beatmapsets/most_played, highest first). */
+export async function fetchMyPlayCounts(ids: Set<number>): Promise<Map<number, number>> {
+	const found = new Map<number, number>();
+	for (let offset = 0; offset < 20000 && found.size < ids.size; offset += 100) {
+		const page = (await api(
+			`users/${OSU_USER_ID}/beatmapsets/most_played?limit=100&offset=${offset}`
+		)) as Json[];
+		if (!Array.isArray(page) || !page.length) break;
+		for (const p of page) {
+			const id = int(p.beatmap_id);
+			if (id && ids.has(id)) found.set(id, int(p.count) ?? 0);
+		}
+	}
+	return found;
+}
+
 /** Refresh one goal: metadata when missing or older than a week (or `force`), always scores. */
-export async function refreshGoal(row: OsuGoalRow, force = false) {
+export async function refreshGoal(row: OsuGoalRow, force = false, plays?: Map<number, number>) {
 	if (row.matchStatus !== 'matched' || !row.beatmapId) return row;
 	try {
 		const stale =
@@ -199,7 +220,7 @@ export async function refreshGoal(row: OsuGoalRow, force = false) {
 					streamNotes: meta ? meta.streamNotes : row.streamNotes
 				}),
 				scores,
-				myPlayCount: scores.length,
+				myPlayCount: plays ? (plays.get(row.beatmapId) ?? 0) : row.myPlayCount,
 				bestScoreId: best?.id ?? null,
 				bestScore: best?.score ?? null,
 				bestAccuracy: best?.accuracy ?? null,