Merge pull request #414 from PR0M3TH3AN/perf/async-roster-loading-4439301282033623986

⚡ Optimize Roster Loading to Async

src/roster.mjs

@@ -70,33 +70,58 @@ const FALLBACK_ROSTER = {
 
 let cachedCanonicalRoster = null;
 
-function loadCanonicalRoster() {
+async function loadCanonicalRoster() {
   if (cachedCanonicalRoster) return cachedCanonicalRoster;
 
   let rosterPath = ROSTER_FILE;
+  let content = null;
 
-  // Prefer user-managed roster if present
-  if (deps.fs.existsSync(USER_ROSTER_FILE)) {
+  const tryRead = async (p) => {
+    try {
+      return { data: await deps.fs.promises.readFile(p, 'utf8'), error: null };
+    } catch (error) {
+      return { data: null, error };
+    }
+  };
+
+  // Try user roster
+  let result = await tryRead(USER_ROSTER_FILE);
+  if (result.data) {
     rosterPath = USER_ROSTER_FILE;
-  } else if (deps.fs.existsSync(CWD_ROSTER_FILE)) {
-    rosterPath = CWD_ROSTER_FILE;
+    content = result.data;
+  } else if (result.error.code === 'ENOENT') {
+    // Try CWD roster
+    result = await tryRead(CWD_ROSTER_FILE);
+    if (result.data) {
+      rosterPath = CWD_ROSTER_FILE;
+      content = result.data;
+    } else if (result.error.code === 'ENOENT') {
+      // Try default roster
+      result = await tryRead(ROSTER_FILE);
+      if (result.data) {
+        rosterPath = ROSTER_FILE;
+        content = result.data;
+      }
+    }
   }
 
-  try {
-    const parsed = JSON.parse(deps.fs.readFileSync(rosterPath, 'utf8'));
-    const daily = Array.isArray(parsed.daily) ? parsed.daily.map((item) => String(item).trim()).filter(Boolean) : [];
-    const weekly = Array.isArray(parsed.weekly)
-      ? parsed.weekly.map((item) => String(item).trim()).filter(Boolean)
-      : [];
+  if (content) {
+    try {
+      const parsed = JSON.parse(content);
+      const daily = Array.isArray(parsed.daily) ? parsed.daily.map((item) => String(item).trim()).filter(Boolean) : [];
+      const weekly = Array.isArray(parsed.weekly)
+        ? parsed.weekly.map((item) => String(item).trim()).filter(Boolean)
+        : [];
 
-    if (daily.length > 0 && weekly.length > 0) {
-      cachedCanonicalRoster = { daily, weekly };
-      return cachedCanonicalRoster;
+      if (daily.length > 0 && weekly.length > 0) {
+        cachedCanonicalRoster = { daily, weekly };
+        return cachedCanonicalRoster;
+      }
+
+      console.error(`WARNING: Roster file is missing daily/weekly entries, falling back: ${rosterPath}`);
+    } catch {
+      // It's okay if roster file is missing when used as a library/CLI without the file present
     }
-
-    console.error(`WARNING: Roster file is missing daily/weekly entries, falling back: ${rosterPath}`);
-  } catch {
-    // It's okay if roster file is missing when used as a library/CLI without the file present
   }
 
   cachedCanonicalRoster = FALLBACK_ROSTER;
@@ -120,7 +145,7 @@ export async function getRoster(cadence) {
   const config = await deps.loadTorchConfig();
   const dailyFromEnv = parseEnvRoster(process.env.NOSTR_LOCK_DAILY_ROSTER);
   const weeklyFromEnv = parseEnvRoster(process.env.NOSTR_LOCK_WEEKLY_ROSTER);
-  const canonical = loadCanonicalRoster();
+  const canonical = await loadCanonicalRoster();
   const dailyFromConfig = config.nostrLock.dailyRoster;
   const weeklyFromConfig = config.nostrLock.weeklyRoster;