style: format static/player/subtitles/vtt.ts

static/player/subtitles/vtt.ts

@@ -1,17 +1,23 @@
 // parses VTT timestamp (mm:ss.ms or hh:mm:ss.ms) to seconds
 export const parseVttTime = (raw: string): number => {
   const parts = raw.trim().split(":");
-  if (parts.length < 2) return 0;
-  const secPart = parts[parts.length - 1];
-  const minPart = parts[parts.length - 2];
-  const hourPart = parts.length > 2 ? parts[parts.length - 3] : "0";
-  if (!secPart || !minPart) return 0;
+  if (parts.length < 2) {
+    return 0;
+  }
+  const secPart = parts.at(-1);
+  const minPart = parts.at(-2);
+  const hourPart = parts.length > 2 ? parts.at(-3) : "0";
+  if (!secPart || !minPart) {
+    return 0;
+  }
   return Number(hourPart) * 3600 + Number(minPart) * 60 + Number(secPart.replace(",", "."));
 };
 
 // parses a single VTT cue: timestamp line + text lines
 const parseVttCue = (line: string, lines: string[], i: number) => {
-  if (!line.includes("-->")) return null;
+  if (!line.includes("-->")) {
+    return null;
+  }
   const [startRaw, endRaw] = line.split("-->");
   const payload: string[] = [];
   let j = i + 1;
@@ -23,31 +29,39 @@ const parseVttCue = (line: string, lines: string[], i: number) => {
   // strip tags, join lines
   const text = payload
     .join("\n")
-    .replace(/<[^>]+>/g, "")
+    .replaceAll(/<[^>]+>/g, "")
     .trim();
-  if (!text) return null;
+  if (!text) {
+    return null;
+  }
   return { start: parseVttTime(startRaw), end: parseVttTime(endRaw), text };
 };
 
 /**
- * Parses full VTT file into cue array.
- * Handles both compact (timestamp on separate line) and standard formats.
+ * Parses full VTT file into cue array. Handles both compact (timestamp on separate line) and
+ * standard formats.
  */
 export const parseVtt = (text: string) => {
-  const lines = text.replace(/\r/g, "").split("\n");
+  const lines = text.replaceAll(/\r/g, "").split("\n");
   const cues = [];
   for (let i = 0; i < lines.length; i++) {
     const line = lines[i].trim();
-    if (!line) continue;
+    if (!line) {
+      continue;
+    }
     // compact: cue id on line i, timestamp on i+1
     if (i + 1 < lines.length && !line.includes("-->") && lines[i + 1].includes("-->")) {
       const cue = parseVttCue(lines[i + 1].trim(), lines, i + 1);
-      if (cue) cues.push(cue);
+      if (cue) {
+        cues.push(cue);
+      }
       i++;
     } else if (line.includes("-->")) {
       // standard: timestamp on same line
       const cue = parseVttCue(line, lines, i);
-      if (cue) cues.push(cue);
+      if (cue) {
+        cues.push(cue);
+      }
     }
   }
   return cues;