Initial public release v1.7.233

src/main/session-log.ts

@@ -0,0 +1,123 @@
+import fs from "node:fs";
+import { logTimestamp } from "./log-timestamp";
+import path from "node:path";
+import { setLogListener } from "./logger";
+
+const SESSION_LOG_FLUSH_INTERVAL_MS = 200;
+
+let sessionLogPath: string | null = null;
+let sessionLogsDir: string | null = null;
+let pendingLines: string[] = [];
+let flushTimer: NodeJS.Timeout | null = null;
+
+function formatTimestamp(): string {
+  const now = new Date();
+  const y = now.getFullYear();
+  const mo = String(now.getMonth() + 1).padStart(2, "0");
+  const d = String(now.getDate()).padStart(2, "0");
+  const h = String(now.getHours()).padStart(2, "0");
+  const mi = String(now.getMinutes()).padStart(2, "0");
+  const s = String(now.getSeconds()).padStart(2, "0");
+  return `${y}-${mo}-${d}_${h}-${mi}-${s}`;
+}
+
+function flushPending(): void {
+  if (pendingLines.length === 0 || !sessionLogPath) {
+    return;
+  }
+  const chunk = pendingLines.join("");
+  pendingLines = [];
+  try {
+    fs.appendFileSync(sessionLogPath, chunk, "utf8");
+  } catch {
+  }
+}
+
+function scheduleFlush(): void {
+  if (flushTimer) {
+    return;
+  }
+  flushTimer = setTimeout(() => {
+    flushTimer = null;
+    flushPending();
+  }, SESSION_LOG_FLUSH_INTERVAL_MS);
+}
+
+function appendToSessionLog(line: string): void {
+  if (!sessionLogPath) {
+    return;
+  }
+  pendingLines.push(line);
+  scheduleFlush();
+}
+
+async function cleanupOldSessionLogs(dir: string, maxAgeDays: number): Promise<void> {
+  try {
+    const files = await fs.promises.readdir(dir);
+    const cutoff = Date.now() - maxAgeDays * 24 * 60 * 60 * 1000;
+    for (const file of files) {
+      if (!file.startsWith("session_") || !file.endsWith(".txt")) {
+        continue;
+      }
+      const filePath = path.join(dir, file);
+      try {
+        const stat = await fs.promises.stat(filePath);
+        if (stat.mtimeMs < cutoff) {
+          await fs.promises.unlink(filePath);
+        }
+      } catch {
+      }
+    }
+  } catch {
+  }
+}
+
+export function initSessionLog(baseDir: string): void {
+  sessionLogsDir = path.join(baseDir, "session-logs");
+  try {
+    fs.mkdirSync(sessionLogsDir, { recursive: true });
+  } catch {
+    sessionLogsDir = null;
+    return;
+  }
+
+  const timestamp = formatTimestamp();
+  sessionLogPath = path.join(sessionLogsDir, `session_${timestamp}.txt`);
+
+  const isoTimestamp = logTimestamp();
+  try {
+    fs.writeFileSync(sessionLogPath, `=== Session gestartet: ${isoTimestamp} ===\n`, "utf8");
+  } catch {
+    sessionLogPath = null;
+    return;
+  }
+
+  setLogListener((line) => appendToSessionLog(line));
+
+  void cleanupOldSessionLogs(sessionLogsDir, 7);
+}
+
+export function getSessionLogPath(): string | null {
+  return sessionLogPath;
+}
+
+export function shutdownSessionLog(): void {
+  if (!sessionLogPath) {
+    return;
+  }
+
+  if (flushTimer) {
+    clearTimeout(flushTimer);
+    flushTimer = null;
+  }
+  flushPending();
+
+  const isoTimestamp = logTimestamp();
+  try {
+    fs.appendFileSync(sessionLogPath, `=== Session beendet: ${isoTimestamp} ===\n`, "utf8");
+  } catch {
+  }
+
+  setLogListener(null);
+  sessionLogPath = null;
+}