style: clean up code with prettier and eslint

src/lib/trax-format.ts

@@ -15,32 +15,32 @@
  * length equals the max per-channel tick-sum × 2 seconds.
  */
 
-export const TRAX_TICK_SECONDS = 2
+export const TRAX_TICK_SECONDS = 2;
 
 export interface TraxEvent {
-  sampleId: number
-  ticks: number
+  sampleId: number;
+  ticks: number;
 }
 
 export interface TraxChannel {
-  channel: number
-  events: TraxEvent[]
+  channel: number;
+  events: TraxEvent[];
 }
 
 /** Split a raw track string into per-channel event lists. */
 export function parseTraxChannels(track: string | null | undefined): TraxChannel[] {
-  if (!track) return []
-  const channels: TraxChannel[] = []
+  if (!track) return [];
+  const channels: TraxChannel[] = [];
   for (const m of track.matchAll(/(\d+):([^:]+)/g)) {
-    const channel = Number(m[1])
-    const events: TraxEvent[] = []
-    for (const raw of m[2].split(';')) {
-      const pair = raw.match(/^(\d+),(\d+)$/)
-      if (pair) events.push({ sampleId: Number(pair[1]), ticks: Number(pair[2]) })
+    const channel = Number(m[1]);
+    const events: TraxEvent[] = [];
+    for (const raw of m[2].split(";")) {
+      const pair = raw.match(/^(\d+),(\d+)$/);
+      if (pair) events.push({ sampleId: Number(pair[1]), ticks: Number(pair[2]) });
     }
-    if (events.length > 0) channels.push({ channel, events })
+    if (events.length > 0) channels.push({ channel, events });
   }
-  return channels
+  return channels;
 }
 
 /**
@@ -48,15 +48,15 @@ export function parseTraxChannels(track: string | null | undefined): TraxChannel
  * Returns [] for empty or unparseable tracks (i.e. single-sample song disks).
  */
 export function parseTrackSamples(track: string | null | undefined): number[] {
-  const set = new Set<number>()
+  const set = new Set<number>();
   for (const ch of parseTraxChannels(track)) {
     for (const ev of ch.events) {
-      if (ev.sampleId > 0) set.add(ev.sampleId)
+      if (ev.sampleId > 0) set.add(ev.sampleId);
     }
   }
-  return [...set].sort((a, b) => a - b)
+  return [...set].sort((a, b) => a - b);
 }
 
-export function detectSoundtrackKind(track: string | null | undefined): 'single' | 'composition' {
-  return parseTrackSamples(track).length > 0 ? 'composition' : 'single'
+export function detectSoundtrackKind(track: string | null | undefined): "single" | "composition" {
+  return parseTrackSamples(track).length > 0 ? "composition" : "single";
 }