release: v3.3.55

fix(ui): ETA includes waiting jobs — folder-added files now ship with bytesTotal
release: v3.3.54
2026-06-08 23:04:14 +02:00 · 2026-06-08 23:03:29 +02:00 · 2026-06-08 22:03:41 +02:00 · 2026-06-08 22:03:19 +02:00 · 2026-06-08 21:28:34 +02:00 · 2026-06-08 21:28:12 +02:00
14 changed files with 1093 additions and 259 deletions
--- a/lib/config-store.js
+++ b/lib/config-store.js
@ -277,7 +277,12 @@ class ConfigStore {
            if (fs.existsSync(this.filePath)) {
              const existing = fs.readFileSync(this.filePath, 'utf-8');
              if (existing && existing.trim().length > 2) {
-                fs.writeFileSync(backupPath, existing, 'utf-8');
+                let isValid = false;
+                try {
+                  const parsed = JSON.parse(existing);
+                  isValid = parsed && typeof parsed === 'object' && (parsed.hosters || parsed.hosterSettings || parsed.globalSettings);
+                } catch {}
+                if (isValid) fs.writeFileSync(backupPath, existing, 'utf-8');
              }
            }
          } catch {}
--- a/lib/hosters.js
+++ b/lib/hosters.js
@ -499,25 +499,28 @@ async function _resolveDoodstreamUploadByName(apiKey, fileName, baselineCodes, s
  return null;
 }

-async function uploadFile(hosterName, filePath, apiKey, onProgress, signal, throttle) {
+async function uploadFile(hosterName, filePath, apiKey, onProgress, signal, throttle, opts) {
  const config = HOSTER_CONFIGS[hosterName];
  if (!config) throw new Error(`Unbekannter Hoster: ${hosterName}`);

-  // For byse: snapshot the current file-code list so the post-upload poller
-  // can identify new arrivals even when the initial POST response has an
-  // empty filecode.
  let byseBaseline = null;
  if (hosterName === 'byse.sx') {
+    if (opts && opts.byseBaseline instanceof Set) {
+      byseBaseline = opts.byseBaseline;
+    } else {
      const baseline = await _fetchByseFileList(apiKey, signal);
      byseBaseline = new Set(baseline.map(f => f.file_code));
    }
-  // Doodstream: same snapshot so a codeless upload response can be recovered by
-  // matching a newly-appeared file in the account by name (see below).
+  }
  let doodBaseline = null;
  if (hosterName === 'doodstream.com') {
+    if (opts && opts.doodBaseline instanceof Set) {
+      doodBaseline = opts.doodBaseline;
+    } else {
      const baseline = await _fetchDoodstreamFileList(apiKey, signal);
      doodBaseline = new Set(baseline.map(f => f.file_code));
    }
+  }

  // Step 1: Get upload server
  const uploadUrl = await getUploadServer(hosterName, config, apiKey, signal);
@ -647,8 +650,23 @@ async function uploadFile(hosterName, filePath, apiKey, onProgress, signal, thro
  throw new Error(msg);
 }

+async function prefetchBaseline(hosterName, apiKey, signal) {
+  try {
+    if (hosterName === 'byse.sx') {
+      const baseline = await _fetchByseFileList(apiKey, signal);
+      return new Set(baseline.map(f => f.file_code));
+    }
+    if (hosterName === 'doodstream.com') {
+      const baseline = await _fetchDoodstreamFileList(apiKey, signal);
+      return new Set(baseline.map(f => f.file_code));
+    }
+  } catch { /* leave caller to fall back to per-job fetch */ }
+  return null;
+}
+
 module.exports = {
  uploadFile,
+  prefetchBaseline,
  HOSTER_CONFIGS,
  __test: {
    extractUploadServerUrl,
--- a/lib/stats.js
+++ b/lib/stats.js
@ -0,0 +1,142 @@
+(function (root) {
+  function summarizePerHoster(history, opts) {
+    const out = {};
+    if (!Array.isArray(history)) return out;
+    const cutoff = opts && Number.isFinite(opts.sinceMs) ? opts.sinceMs : null;
+    const limitBatches = opts && Number.isFinite(opts.lastNBatches) && opts.lastNBatches > 0 ? opts.lastNBatches : null;
+
+    const entries = [...history];
+    entries.sort((a, b) => {
+      const ta = a && a.timestamp ? Date.parse(a.timestamp) : 0;
+      const tb = b && b.timestamp ? Date.parse(b.timestamp) : 0;
+      return tb - ta;
+    });
+    const sliced = limitBatches ? entries.slice(0, limitBatches) : entries;
+
+    for (const batch of sliced) {
+      if (!batch || !Array.isArray(batch.files)) continue;
+      if (cutoff !== null) {
+        const ts = batch.timestamp ? Date.parse(batch.timestamp) : 0;
+        if (!ts || ts < cutoff) continue;
+      }
+      for (const file of batch.files) {
+        if (!file || !Array.isArray(file.results)) continue;
+        for (const r of file.results) {
+          if (!r || !r.hoster) continue;
+          const bucket = out[r.hoster] || (out[r.hoster] = { ok: 0, fail: 0, total: 0 });
+          bucket.total++;
+          if (r.status === 'done') bucket.ok++;
+          else bucket.fail++;
+        }
+      }
+    }
+    for (const h of Object.keys(out)) {
+      const b = out[h];
+      b.rate = b.total > 0 ? b.ok / b.total : null;
+    }
+    return out;
+  }
+
+  function classifyErrorCategory(err) {
+    if (!err || typeof err !== 'string') return 'unknown';
+    const s = err.toLowerCase();
+    if (/abgebrochen|aborted|cancel/.test(s)) return 'aborted';
+    if (/not video file format|kein videoformat|invalid file|wrong format|duplicate|already exists|file too (small|big|large)|datei zu (gro|klein)/.test(s)) return 'file-rejected';
+    if (/quota|storage (full|exhausted|voll)|account (full|banned|suspended)|disk (space )?full|insufficient (disk )?space|not enough (disk )?(space|storage)/.test(s)) return 'account-error';
+    if (/csrf|kein upload-server|server.*?(busy|unavailable|try again)|no servers available|filecode|kein filecode|empty.*?(form|response)/.test(s)) return 'hoster-transient';
+    if (/timeout|econnreset|enotfound|fetch failed|network|socket hang up|abort/.test(s)) return 'network';
+    return 'unknown';
+  }
+
+  function summarizeBatchErrors(batchSummary) {
+    const buckets = {
+      'file-rejected': [],
+      'account-error': [],
+      'hoster-transient': [],
+      'network': [],
+      'unknown': [],
+      'aborted': []
+    };
+    if (!batchSummary || !Array.isArray(batchSummary.files)) return buckets;
+    for (const f of batchSummary.files) {
+      if (!f || !Array.isArray(f.results)) continue;
+      for (const r of f.results) {
+        if (!r || r.status === 'done') continue;
+        const cat = classifyErrorCategory(r.error);
+        buckets[cat].push({
+          fileName: f.name || f.fileName || '',
+          hoster: r.hoster || '',
+          error: r.error || '',
+          jobId: r.jobId || null
+        });
+      }
+    }
+    return buckets;
+  }
+
+  const RETRYABLE_CATEGORIES = new Set(['hoster-transient', 'network', 'unknown']);
+  function isRetryableCategory(cat) {
+    return RETRYABLE_CATEGORIES.has(cat);
+  }
+
+  const CATEGORY_LABELS = {
+    'file-rejected': 'Datei abgelehnt',
+    'account-error': 'Account-Problem',
+    'hoster-transient': 'Hoster-Flake',
+    'network': 'Netzwerk',
+    'unknown': 'Unbekannt',
+    'aborted': 'Abgebrochen'
+  };
+
+  function formatLinks(rows, format) {
+    if (!Array.isArray(rows)) return '';
+    const safe = rows.filter(r => r && r.url);
+    if (safe.length === 0) return '';
+    switch (format) {
+      case 'plain':
+        return safe.map(r => r.url).join('\n');
+      case 'bbcode':
+        return safe.map(r => {
+          const label = r.fileName || r.hoster || r.url;
+          return `[url=${r.url}]${label}[/url]`;
+        }).join('\n');
+      case 'markdown':
+        return safe.map(r => {
+          const label = r.fileName || r.hoster || r.url;
+          return `- [${label}](${r.url})`;
+        }).join('\n');
+      case 'html':
+        return safe.map(r => {
+          const label = r.fileName || r.hoster || r.url;
+          return `<a href="${r.url}">${label}</a>`;
+        }).join('\n');
+      case 'csv': {
+        const head = 'fileName,hoster,url\n';
+        return head + safe.map(r => {
+          const esc = (v) => `"${String(v || '').replace(/"/g, '""')}"`;
+          return [esc(r.fileName), esc(r.hoster), esc(r.url)].join(',');
+        }).join('\n');
+      }
+      case 'json':
+        return JSON.stringify(safe.map(r => ({ fileName: r.fileName || '', hoster: r.hoster || '', url: r.url })), null, 2);
+      default:
+        return safe.map(r => r.url).join('\n');
+    }
+  }
+
+  const api = {
+    summarizePerHoster,
+    classifyErrorCategory,
+    summarizeBatchErrors,
+    isRetryableCategory,
+    RETRYABLE_CATEGORIES,
+    CATEGORY_LABELS,
+    formatLinks
+  };
+
+  if (typeof module !== 'undefined' && module.exports) {
+    module.exports = api;
+  } else if (root) {
+    root.Stats = api;
+  }
+})(typeof window !== 'undefined' ? window : this);
--- a/lib/updater.js
+++ b/lib/updater.js
@ -233,7 +233,20 @@ async function installUpdate(onProgress) {
    // Stage: done
    if (onProgress) onProgress({ stage: 'done', percent: 100 });

-    setTimeout(() => app.quit(), 900);
+    const _doQuit = () => setTimeout(() => app.quit(), 900);
+    const _getActive = () => {
+      try { return globalThis._mhuUploadManagerRef && globalThis._mhuUploadManagerRef.getActiveJobCount ? globalThis._mhuUploadManagerRef.getActiveJobCount() : 0; }
+      catch { return 0; }
+    };
+    if (_getActive() > 0) {
+      const POLL_MS = 3000;
+      const poller = setInterval(() => {
+        if (_getActive() === 0) { clearInterval(poller); _doQuit(); }
+      }, POLL_MS);
+      setTimeout(() => { try { clearInterval(poller); } catch {} _doQuit(); }, 30 * 60 * 1000);
+    } else {
+      _doQuit();
+    }

  } catch (err) {
    if (onProgress) onProgress({ stage: 'error', error: err.message });
--- a/lib/upload-manager.js
+++ b/lib/upload-manager.js
@ -2,14 +2,14 @@ const { EventEmitter } = require('events');
 const path = require('path');
 const fs = require('fs');
 const crypto = require('crypto');
-const { uploadFile } = require('./hosters');
+const { uploadFile, prefetchBaseline } = require('./hosters');
 const VidmolyUploader = require('./vidmoly-upload');
 const VoeUploader = require('./voe-upload');
 const DoodstreamUploader = require('./doodstream-upload');
 const ClouddropUploader = require('./clouddrop-upload');
 const Semaphore = require('./semaphore');
 const Throttle = require('./throttle');
-const { probeFileHead, summarizeFileStat } = require('./file-probe');
+const { probeFileHead } = require('./file-probe');

 const DEFAULT_SETTINGS = {
  retries: 3,
@ -42,6 +42,7 @@ class UploadManager extends EventEmitter {
    this._failedAccounts = new Map(); // hoster -> Set of failed accountIds
    this._accountOverrides = new Map(); // hoster -> fallback account object
    this._doodApiKeyCache = new Map(); // accountId/username -> derived doodstream API key ('' = tried, none)
+    this._baselineCache = new Map(); // hoster:apiKey -> Promise<Set<file_code>> (one fetch shared across all jobs in batch)
  }

  switchAccount(hoster, fallbackAccount) {
@ -66,6 +67,20 @@ class UploadManager extends EventEmitter {
    return this._accountOverrides.get(hoster) || null;
  }

+  getActiveJobCount() {
+    return this.activeJobs.size;
+  }
+
+  clearFailedAccount(hoster, accountId) {
+    return this._failedAccounts.delete(`${hoster}:${accountId}`);
+  }
+
+  clearAllFailedAccounts() {
+    const n = this._failedAccounts.size;
+    this._failedAccounts.clear();
+    return n;
+  }
+
  // True if the hoster has a usable override stored that differs from the
  // account currently in the task and isn't itself already marked failed.
  // Used by the retry loop to decide "retry on same account vs break to
@ -268,6 +283,7 @@ class UploadManager extends EventEmitter {
    this.jobAbortControllers.clear();
    this.cancelledJobIds.clear();
    this._doodApiKeyCache.clear(); // re-derive doodstream keys fresh each batch
+    this._baselineCache.clear(); // re-fetch baselines per batch (a long batch could outlast remote-side relevance)
    this.semaphores = {};
    this.globalSemaphore = null;
    this.globalThrottle = null;
@ -298,18 +314,32 @@ class UploadManager extends EventEmitter {
    this._batchResults = results;
    this._additionalPromises = []; // Track jobs added mid-batch via addJobs()

-    for (const task of tasks) {
-      const fileName = path.basename(task.file);
+    const DEDUP_CHUNK = 200;
+    for (let i = 0; i < tasks.length; i += DEDUP_CHUNK) {
+      if (signal.aborted) break;
+      const end = Math.min(i + DEDUP_CHUNK, tasks.length);
+      for (let j = i; j < end; j++) {
+        const task = tasks[j];
        if (!results.has(task.file)) {
+          const fileName = path.basename(task.file);
          let size = 0;
          try { size = fs.statSync(task.file).size; } catch {}
          results.set(task.file, { name: fileName, size, results: [] });
        }
      }
+      if (end < tasks.length) await new Promise(setImmediate);
+    }

    this._startStatsTimer();

-    const promises = tasks.map((task) => this._runJob(task, results, signal));
+    const SPAWN_CHUNK = 100;
+    const promises = [];
+    for (let i = 0; i < tasks.length; i += SPAWN_CHUNK) {
+      if (signal.aborted) break;
+      const end = Math.min(i + SPAWN_CHUNK, tasks.length);
+      for (let j = i; j < end; j++) promises.push(this._runJob(tasks[j], results, signal));
+      if (end < tasks.length) await new Promise(setImmediate);
+    }
    await Promise.allSettled(promises);
    // Wait for any jobs added mid-batch via addJobs()
    while (this._additionalPromises.length > 0) {
@ -345,7 +375,12 @@ class UploadManager extends EventEmitter {
    const fileName = path.basename(task.file);
    let fileSize = 0;
    let fileNotFound = false;
+    const cachedResult = results && results.get(task.file);
+    if (cachedResult && typeof cachedResult.size === 'number' && cachedResult.size > 0) {
+      fileSize = cachedResult.size;
+    } else {
      try { fileSize = fs.statSync(task.file).size; } catch { fileNotFound = true; }
+    }

    const maxAttempts = Math.max(1, (settings.retries || 0) + 1);
    const jobAbortController = new AbortController();
@ -410,36 +445,30 @@ class UploadManager extends EventEmitter {
        return;
      }

-      this._emitProgress(uploadId, fileName, task.hoster, { accountId: task.accountId,
-        jobId,
-        status: 'queued',
-        progress: 0,
-        bytesUploaded: 0,
-        bytesTotal: fileSize,
-        speedKbs: 0,
-        elapsed: 0,
-        remaining: 0,
-        error: null,
-        result: null,
-        attempt: 0,
-        maxAttempts
-      });
+      // The initial 'queued' emit per job is suppressed: with N=2000+ tasks
+      // it produces 2000+ main→renderer IPCs back-to-back at startBatch and
+      // freezes the renderer event loop for tens of seconds. The renderer
+      // already holds each job in 'queued'/'preview' state from its own
+      // queueJobs array; the first event it actually needs from main is the
+      // 'getting-server' / 'uploading' transition for the jobs that the
+      // semaphore lets through.
+      await hosterSemaphore.acquire(signal);
+      hosterSlotAcquired = true;

-      const fileStat = summarizeFileStat(task.file);
-      const fileProbe = await probeFileHead(task.file, 64).catch((err) => ({ ok: false, error: err.message, kind: 'unreadable' }));
+      let fileProbe = null;
+      try {
+        fileProbe = await probeFileHead(task.file, 64);
+      } catch (err) {
+        fileProbe = { ok: false, error: err && err.message, kind: 'unreadable' };
+      }
      this._rotLog('upload-start', {
        jobId, hoster: task.hoster, accountId: task.accountId, fileName,
-        fileSize: fileStat.size, fileMtime: fileStat.mtime,
+        fileSize,
        detectedKind: fileProbe && fileProbe.kind ? fileProbe.kind : 'unknown',
        isVideoLike: !!(fileProbe && fileProbe.isVideoLike),
        headHex: fileProbe && fileProbe.headHex ? fileProbe.headHex.slice(0, 32) : null
      });

-      // Acquire hoster semaphore first so jobs waiting for a hoster slot
-      // don't waste global slots (prevents underutilization)
-      await hosterSemaphore.acquire(signal);
-      hosterSlotAcquired = true;
-
      if (globalSemaphore) {
        await globalSemaphore.acquire(signal);
        globalSlotAcquired = true;
@ -531,6 +560,7 @@ class UploadManager extends EventEmitter {
            speedAbort = new AbortController();
            uploadSignalBundle = this._combineManySignals([signal, speedAbort.signal]);
            speedMonitor = setInterval(() => {
+              try {
                if (currentSpeedKbs > 0 && currentSpeedKbs < settings.restartBelowKbs) {
                  if (!lowSpeedSince) lowSpeedSince = Date.now();
                  if (Date.now() - lowSpeedSince > 6000) {
@ -539,6 +569,7 @@ class UploadManager extends EventEmitter {
                } else {
                  lowSpeedSince = 0;
                }
+              } catch (e) { this._rotLog('speed-monitor-error', { jobId, error: e && e.message }); }
            }, 2000);
          }

@ -552,10 +583,11 @@ class UploadManager extends EventEmitter {
          const PROGRESS_EMIT_INTERVAL = 250; // ms – throttle UI updates

          const progressCb = (bytesUploaded, bytesTotal) => {
+            try {
              const now = Date.now();
              const elapsed = Math.round((now - jobStart) / 1000);
              const timeDelta = (now - lastSpeedTime) / 1000;
-            if (timeDelta >= 1) {
+              if (Number.isFinite(timeDelta) && timeDelta >= 1) {
                const bytesDelta = bytesUploaded - lastBytes;
                currentSpeedKbs = Math.round(bytesDelta / timeDelta / 1024);
                lastBytes = bytesUploaded;
@ -565,7 +597,6 @@ class UploadManager extends EventEmitter {
              activeEntry.speedKbs = currentSpeedKbs;
              activeEntry.bytesUploaded = bytesUploaded;

-            // Throttle progress emissions to reduce IPC + rendering overhead
              if (now - lastEmitTime < PROGRESS_EMIT_INTERVAL) return;
              lastEmitTime = now;

@ -587,6 +618,7 @@ class UploadManager extends EventEmitter {
                attempt,
                maxAttempts
              });
+            } catch { /* progress callbacks must never throw — swallowing is correct, the stream keeps going */ }
          };

          const result = await this._executeUpload(task, progressCb, uploadSignalBundle.signal, throttle);
@ -910,7 +942,9 @@ class UploadManager extends EventEmitter {
      const apiKey = await this._resolveDoodstreamApiKey(task);
      if (apiKey) {
        this._rotLog('doodstream-via-api', { accountId: task.accountId, fileName: path.basename(task.file) });
-        return uploadFile('doodstream.com', task.file, apiKey, progressCb, signal, throttle);
+        return uploadFile('doodstream.com', task.file, apiKey, progressCb, signal, throttle, {
+          doodBaseline: await this._getBaseline('doodstream.com', apiKey, signal)
+        });
      }
      this._rotLog('doodstream-via-web', { accountId: task.accountId, fileName: path.basename(task.file) });
      const dood = new DoodstreamUploader();
@ -920,10 +954,23 @@ class UploadManager extends EventEmitter {
      const clouddrop = new ClouddropUploader(task.apiKey);
      return clouddrop.upload(task.file, progressCb, signal, throttle);
    } else {
-      return uploadFile(task.hoster, task.file, task.apiKey, progressCb, signal, throttle);
+      const baselineOpts = {};
+      if (task.hoster === 'byse.sx') baselineOpts.byseBaseline = await this._getBaseline('byse.sx', task.apiKey, signal);
+      if (task.hoster === 'doodstream.com') baselineOpts.doodBaseline = await this._getBaseline('doodstream.com', task.apiKey, signal);
+      return uploadFile(task.hoster, task.file, task.apiKey, progressCb, signal, throttle, baselineOpts);
    }
  }

+  _getBaseline(hosterName, apiKey, signal) {
+    if (!apiKey) return Promise.resolve(null);
+    const key = `${hosterName}:${apiKey}`;
+    let pending = this._baselineCache.get(key);
+    if (pending) return pending;
+    pending = prefetchBaseline(hosterName, apiKey, signal);
+    this._baselineCache.set(key, pending);
+    return pending;
+  }
+
  // Resolve (and cache per batch) the doodstream API key for a login-only
  // account by logging in once and scraping+validating it from the session.
  // Returns the key string, or '' when none could be derived (cached either way
@ -953,7 +1000,7 @@ class UploadManager extends EventEmitter {
  _startStatsTimer() {
    if (this.statsInterval) clearInterval(this.statsInterval);
    this.statsInterval = setInterval(() => {
-      // Single pass over active jobs instead of two.
+      try {
      let globalSpeedKbs = 0;
      let activeCount = 0;
      let inProgressBytes = 0;
@ -973,6 +1020,7 @@ class UploadManager extends EventEmitter {
        activeJobs: activeCount,
        pendingJobs: Object.values(this.semaphores).reduce((sum, semaphore) => sum + semaphore.pending, 0)
      });
+      } catch { /* never let a stats tick crash the timer + caller */ }
    }, 1000);
  }

--- a/lib/vidmoly-upload.js
+++ b/lib/vidmoly-upload.js
@ -382,7 +382,7 @@ class VidmolyUploader {
          }
        }

-        if (best && (bestScore > 0 || newFiles.length === 1)) {
+        if (best && bestScore > 0) {
          return this._buildUrlsFromCode(best.file_code);
        }
      }
--- a/main.js
+++ b/main.js
@ -208,6 +208,7 @@ function getAllLogPaths() {
    debug: debugPath,
    accountRotation: rot,
    doodstreamDebug: path.join(dir, 'doodstream-debug.log'),
+    crashLog: path.join(dir, 'crash.log'),
    logDir: dir
  };
 }
@ -216,23 +217,10 @@ function rotLog(msg, ts) {
  try {
    const iso = new Date(ts || Date.now()).toISOString();
    const line = `[${iso}] ${msg}\n`;
-    // Write synchronously. Rotation events are rare (a handful per batch) so
-    // the batching optimization from debugLog doesn't buy us anything, and
-    // syncing guarantees the user can refresh the file and see fresh entries
-    // without waiting on a flush timer.
-    const candidates = [
-      getRotLogPath(),
-      path.join(app.getPath('desktop') || app.getPath('userData'), 'account-rotation.log'),
-      path.join(app.getPath('userData'), 'account-rotation.log')
-    ];
-    for (const target of candidates) {
-      try {
-        fs.mkdirSync(path.dirname(target), { recursive: true });
-        fs.appendFileSync(target, line, 'utf-8');
-        break;
-      } catch {}
+    _rotLogBuffer.push(line);
+    if (!_rotLogFlushTimer) {
+      _rotLogFlushTimer = setTimeout(() => { _rotLogFlushTimer = null; _flushRotLog(); }, 500);
    }
-    // Mirror into the main debug log for single-file-grep convenience.
    _debugLogBuffer.push(`[${iso}] [ROT] ${msg}\n`);
    if (!_debugLogFlushTimer) {
      _debugLogFlushTimer = setTimeout(() => { _debugLogFlushTimer = null; _flushDebugLog(); }, 500);
@ -240,11 +228,62 @@ function rotLog(msg, ts) {
  } catch {}
 }

-// Catch unhandled rejections from fire-and-forget async calls
+function safeSend(channel, data) {
+  if (!mainWindow || mainWindow.isDestroyed()) return false;
+  try {
+    mainWindow.webContents.send(channel, data);
+    return true;
+  } catch (err) {
+    debugLog(`safeSend(${channel}) failed: ${err && err.message ? err.message : err}`);
+    return false;
+  }
+}
+
+function _writeCrashLog(prefix, err, extra) {
+  try {
+    const ts = new Date().toISOString();
+    const line = `[${ts}] ${prefix} ${err && err.stack ? err.stack : (err && err.message) || String(err)}${extra ? ' :: ' + JSON.stringify(extra) : ''}\n`;
+    try {
+      const target = getDebugLogPath();
+      fs.appendFileSync(target, line, 'utf-8');
+    } catch {}
+    try {
+      const crashDir = path.dirname(getDebugLogPath());
+      fs.appendFileSync(path.join(crashDir, 'crash.log'), line, 'utf-8');
+    } catch {}
+  } catch {}
+}
+
 process.on('unhandledRejection', (reason) => {
  debugLog(`UNHANDLED REJECTION: ${reason && reason.stack ? reason.stack : reason}`);
+  _writeCrashLog('UNHANDLED REJECTION', reason);
 });

+process.on('uncaughtException', (err, origin) => {
+  _writeCrashLog('UNCAUGHT EXCEPTION (' + origin + ')', err);
+  debugLog(`UNCAUGHT EXCEPTION (${origin}): ${err && err.stack ? err.stack : err}`);
+});
+
+process.on('exit', (code) => {
+  try { _writeCrashLog('PROCESS EXIT', new Error('code=' + code)); } catch {}
+});
+
+process.on('warning', (warning) => {
+  debugLog(`PROCESS WARNING: ${warning.name} ${warning.message}`);
+});
+
+for (const sig of ['SIGINT', 'SIGTERM', 'SIGHUP', 'SIGBREAK']) {
+  try {
+    process.on(sig, () => {
+      _writeCrashLog('SIGNAL ' + sig, new Error('process received ' + sig));
+      try {
+        if (_debugLogBuffer.length) fs.appendFileSync(getDebugLogPath(), _debugLogBuffer.join(''), 'utf-8');
+      } catch {}
+      process.exit(0);
+    });
+  } catch {}
+}
+
 function withTimeout(promise, timeoutMs, label) {
  return new Promise((resolve, reject) => {
    const timer = setTimeout(() => {
@ -444,9 +483,7 @@ function _flushUploadLog() {
      // next session writes here directly (no more fallback ladder) and
      // the Settings input reflects reality.
      _persistFallbackLogPath(target.path);
-      if (mainWindow && !mainWindow.isDestroyed()) {
-        mainWindow.webContents.send('upload-log-fallback', { fallbackPath: target.path });
-      }
+      safeSend('upload-log-fallback', { fallbackPath: target.path });
    }
    if (_uploadLogBuffer.length && !_uploadLogFlushTimer) setImmediate(_flushUploadLog);
  });
@ -474,9 +511,7 @@ function _persistFallbackLogPath(workingPath) {
    cfg.globalSettings = gs;
    configStore.save({ globalSettings: gs }).catch(() => {});
    _invalidateUploadLogTargetCache();
-    if (mainWindow && !mainWindow.isDestroyed()) {
-      mainWindow.webContents.send('log-path-auto-updated', { logFilePath: toSave });
-    }
+    safeSend('log-path-auto-updated', { logFilePath: toSave });
  } catch (err) {
    debugLog(`persist fallback logpath failed: ${err.message}`);
  }
@ -960,6 +995,51 @@ function createWindow() {
  });

  mainWindow.webContents.setBackgroundThrottling(false);
+
+  mainWindow.webContents.on('render-process-gone', (_event, details) => {
+    _writeCrashLog('RENDER PROCESS GONE', new Error(details.reason || 'unknown'), details);
+    debugLog(`RENDER PROCESS GONE: reason=${details.reason} exitCode=${details.exitCode}`);
+    if (mainWindow && !mainWindow.isDestroyed()) {
+      try {
+        const choice = dialog.showMessageBoxSync(mainWindow, {
+          type: 'error',
+          title: 'Renderer abgestürzt',
+          message: `Der Renderer-Prozess ist abgestürzt (${details.reason}).`,
+          detail: 'Bitte Diagnose-Paket exportieren und einsenden. Klick "Neu laden" um die UI wiederherzustellen — laufende Uploads im Main-Process bleiben aktiv.',
+          buttons: ['Neu laden', 'Beenden'],
+          defaultId: 0,
+          cancelId: 1
+        });
+        if (choice === 0) {
+          mainWindow.webContents.reload();
+        } else {
+          app.exit(1);
+        }
+      } catch {
+        try { mainWindow.webContents.reload(); } catch {}
+      }
+    }
+  });
+
+  mainWindow.webContents.on('unresponsive', () => {
+    _writeCrashLog('RENDERER UNRESPONSIVE', new Error('webContents unresponsive'));
+    debugLog('RENDERER UNRESPONSIVE');
+  });
+
+  mainWindow.webContents.on('responsive', () => {
+    debugLog('RENDERER RESPONSIVE AGAIN');
+  });
+
+  mainWindow.webContents.on('did-fail-load', (_event, errorCode, errorDescription, validatedURL) => {
+    _writeCrashLog('DID-FAIL-LOAD', new Error(errorDescription), { errorCode, validatedURL });
+    debugLog(`DID-FAIL-LOAD: ${errorCode} ${errorDescription} url=${validatedURL}`);
+  });
+
+  app.on('child-process-gone', (_event, details) => {
+    _writeCrashLog('CHILD PROCESS GONE', new Error(details.reason || 'unknown'), details);
+    debugLog(`CHILD PROCESS GONE: type=${details.type} reason=${details.reason} exitCode=${details.exitCode}`);
+  });
+
  mainWindow.loadFile(path.join(__dirname, 'renderer', 'index.html'));
 }

@ -1053,7 +1133,7 @@ app.whenReady().then(() => {
      logInfo(`update-check: available=${result && result.available}, remote=${result && result.remoteVersion}`);
      logDebug(`update-check result: ${JSON.stringify(result)}`);
      if (result && result.available && mainWindow && !mainWindow.isDestroyed()) {
-        mainWindow.webContents.send('app:update-available', result);
+        safeSend('app:update-available', result);
      }
    } catch (err) {
      logError('update-check failed', err);
@ -1062,6 +1142,9 @@ app.whenReady().then(() => {
 });

 app.on('window-all-closed', () => {
+  const activeJobs = uploadManager && typeof uploadManager.getActiveJobCount === 'function' ? uploadManager.getActiveJobCount() : 0;
+  debugLog(`window-all-closed: activeJobs=${activeJobs}, uploadManager=${!!uploadManager}`);
+  _writeCrashLog('WINDOW-ALL-CLOSED', new Error('all windows closed'), { activeJobs, uploadManager: !!uploadManager });
  app.quit();
 });

@ -1072,7 +1155,8 @@ app.on('before-quit', () => {
    if (remoteServer) { remoteServer.stop(); remoteServer = null; }
    destroyCaptureWindow();
  } catch {}
-  destroyDropTargetWindow();
+  try { destroyDropTargetWindow(); } catch {}
+  try { if (tray && !tray.isDestroyed()) { tray.destroy(); tray = null; } } catch {}
  // Flush pending log buffers synchronously so no lines are lost.
  try {
    if (_debugLogBuffer.length) {
@ -1133,13 +1217,11 @@ ipcMain.handle('save-config', async (_event, config) => {
          rotLog(`main: config-updated → late fallback ${fallback.id} for ${hoster} (was stuck on ${failedAccountId})`);
          uploadManager.switchAccount(hoster, fallback);
          _sessionAccountOverrides.set(hoster, fallback);
-          if (mainWindow && !mainWindow.isDestroyed()) {
-            mainWindow.webContents.send('account-switched', {
+          safeSend('account-switched', {
              hoster, fromAccountId: failedAccountId, toAccountId: fallback.id
            });
        }
      }
-      }
    } catch (err) {
      debugLog(`save-config re-resolve failed: ${err && err.message ? err.message : err}`);
    }
@ -1297,36 +1379,62 @@ ipcMain.handle('select-folder', async () => {
  });
  if (result.canceled || !result.filePaths.length) return null;

-  // Recursively collect all files from selected folders
  const files = [];
-  const walk = (dir) => {
-    try {
-      for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
-        const full = path.join(dir, entry.name);
-        if (entry.isDirectory()) walk(full);
-        else if (entry.isFile()) files.push(full);
-      }
-    } catch {}
-  };
-  for (const folder of result.filePaths) walk(folder);
+  for (const folder of result.filePaths) await walkFolderAsync(folder, files);
+  return files.length > 0 ? files.map(f => f.path) : null;
+});
+
+ipcMain.handle('select-folder-with-sizes', async () => {
+  const result = await dialog.showOpenDialog(mainWindow, {
+    properties: ['openDirectory', 'multiSelections']
+  });
+  if (result.canceled || !result.filePaths.length) return null;
+
+  const files = [];
+  for (const folder of result.filePaths) await walkFolderAsync(folder, files);
  return files.length > 0 ? files : null;
 });

+async function walkFolderAsync(rootDir, outFiles) {
+  const fsp = fs.promises;
+  const stack = [rootDir];
+  let scanned = 0;
+  while (stack.length > 0) {
+    const dir = stack.pop();
+    let entries;
+    try { entries = await fsp.readdir(dir, { withFileTypes: true }); }
+    catch { continue; }
+    for (const entry of entries) {
+      const full = path.join(dir, entry.name);
+      if (entry.isDirectory()) stack.push(full);
+      else if (entry.isFile()) {
+        let size = 0;
+        try { size = (await fsp.stat(full)).size; } catch {}
+        outFiles.push({ path: full, name: entry.name, size });
+      }
+    }
+    if ((++scanned % 8) === 0) await new Promise(setImmediate);
+  }
+}
+
 ipcMain.handle('resolve-folder-files', async (_event, folderPath) => {
  const files = [];
-  const walk = (dir) => {
-    try {
-      for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
-        const full = path.join(dir, entry.name);
-        if (entry.isDirectory()) walk(full);
-        else if (entry.isFile()) files.push(full);
-      }
-    } catch {}
-  };
-  walk(folderPath);
+  await walkFolderAsync(folderPath, files);
  return files;
 });

+ipcMain.handle('get-file-sizes', async (_event, paths) => {
+  if (!Array.isArray(paths)) return {};
+  const fsp = fs.promises;
+  const out = {};
+  let i = 0;
+  for (const p of paths) {
+    try { out[p] = (await fsp.stat(p)).size; } catch { out[p] = 0; }
+    if ((++i % 32) === 0) await new Promise(setImmediate);
+  }
+  return out;
+});
+
 ipcMain.handle('start-upload', (_event, payload) => {
  const config = configStore.load();
  const files = payload && Array.isArray(payload.files) ? payload.files : [];
@ -1382,9 +1490,29 @@ ipcMain.handle('start-upload', (_event, payload) => {

  // Pass hoster settings to the upload manager
  uploadManager = new UploadManager(config.hosterSettings || {}, config.globalSettings || {});
+  globalThis._mhuUploadManagerRef = uploadManager;
+
+  const _progressByJob = new Map();
+  const _progressTerminalQueue = [];
+  let _progressFlushTimer = null;
+  const PROGRESS_BATCH_INTERVAL_MS = 100;
+  function _scheduleProgressFlush() {
+    if (_progressFlushTimer) return;
+    _progressFlushTimer = setTimeout(() => {
+      _progressFlushTimer = null;
+      if (!mainWindow || mainWindow.isDestroyed()) {
+        _progressByJob.clear();
+        _progressTerminalQueue.length = 0;
+        return;
+      }
+      const batch = _progressTerminalQueue.splice(0);
+      for (const v of _progressByJob.values()) batch.push(v);
+      _progressByJob.clear();
+      if (batch.length) safeSend('upload-progress-batch', batch);
+    }, PROGRESS_BATCH_INTERVAL_MS);
+  }

  uploadManager.on('progress', (data) => {
-    // Only log state changes, not continuous progress updates
    if (data.status !== 'uploading') {
      debugLog(`progress: ${data.fileName} ${data.hoster} ${data.status} ${data.error || ''}`);
      _appendJobLog(data.jobId, {
@ -1393,10 +1521,6 @@ ipcMain.handle('start-upload', (_event, payload) => {
        error: data.error || null, attempt: data.attempt || 0, maxAttempts: data.maxAttempts || 0
      });
    }
-    // Write to fileuploader.log immediately when a single upload finishes —
-    // unless the user disabled logging for this hoster (per-hoster toggle).
-    // Read from the live uploadManager.hosterSettings so a mid-batch toggle
-    // (which calls updateSettings) takes effect immediately.
    if (data.status === 'done' && data.result) {
      const link = data.result.download_url || data.result.embed_url || data.result.file_code || '';
      if (link) {
@ -1409,22 +1533,29 @@ ipcMain.handle('start-upload', (_event, payload) => {
        debugLog(`WARNING: done but no link for ${data.fileName} @ ${data.hoster}: ${JSON.stringify(data.result)}`);
      }
    }
-    if (mainWindow && !mainWindow.isDestroyed()) {
-      mainWindow.webContents.send('upload-progress', data);
+    const isTerminal = data.status === 'done' || data.status === 'error' || data.status === 'aborted' || data.status === 'skipped';
+    if (isTerminal) {
+      if (data.jobId) _progressByJob.delete(data.jobId);
+      _progressTerminalQueue.push(data);
+    } else if (data.jobId) {
+      _progressByJob.set(data.jobId, data);
+    } else {
+      _progressTerminalQueue.push(data);
    }
+    _scheduleProgressFlush();
  });

  uploadManager.on('stats', (data) => {
-    if (mainWindow && !mainWindow.isDestroyed()) {
-      mainWindow.webContents.send('upload-stats', data);
-    }
-    // Update tray tooltip with upload progress
+    try {
+      if (!data || typeof data !== 'object') return;
+      safeSend('upload-stats', data);
      if (data.state === 'uploading' && data.activeJobs > 0) {
-      const speedMb = ((data.globalSpeedKbs || 0) / 1024).toFixed(1);
+        const speedMb = ((Number(data.globalSpeedKbs) || 0) / 1024).toFixed(1);
        updateTrayTooltip(`Upload: ${data.activeJobs} aktiv - ${speedMb} MB/s`);
      } else {
        updateTrayTooltip('Multi-Hoster-Upload');
      }
+    } catch (e) { debugLog(`stats listener error: ${e && e.message}`); }
  });

  uploadManager.on('account-failed', ({ hoster, accountId }) => {
@ -1437,26 +1568,41 @@ ipcMain.handle('start-upload', (_event, payload) => {
      rotLog(`main: account-failed ${hoster} ${accountId} → resolved fallback ${fallback.id}`);
      uploadManager.switchAccount(hoster, fallback);
      _sessionAccountOverrides.set(hoster, fallback);
-      if (mainWindow && !mainWindow.isDestroyed()) {
-        mainWindow.webContents.send('account-switched', { hoster, fromAccountId: accountId, toAccountId: fallback.id });
-      }
+      safeSend('account-switched', { hoster, fromAccountId: accountId, toAccountId: fallback.id });
    } else {
      rotLog(`main: account-failed ${hoster} ${accountId} → NO fallback available (end of chain)`);
    }
  });

+  const ROT_LOG_RENDERER_EVENTS = new Set([
+    'switchAccount',
+    'pre-job-swap',
+    'try-alternate-after-fail',
+    'mark-failed',
+    'rotation-end',
+    'doodstream-via-api',
+    'doodstream-via-web'
+  ]);
  uploadManager.on('rot-log', (entry) => {
+    try {
+      if (!entry || typeof entry !== 'object') return;
      const { ts, event, ...rest } = entry;
      const pairs = Object.entries(rest)
-      .map(([k, v]) => `${k}=${typeof v === 'string' ? v : JSON.stringify(v)}`)
+        .map(([k, v]) => {
+          let sv;
+          try { sv = typeof v === 'string' ? v : JSON.stringify(v); }
+          catch { sv = '<unserializable>'; }
+          return `${k}=${sv}`;
+        })
        .join(' ');
      rotLog(`[${event}] ${pairs}`, ts);
      if (entry.jobId) {
        _appendJobLog(entry.jobId, { ts: ts || Date.now(), kind: 'rot', event, ...rest });
      }
-    if (mainWindow && !mainWindow.isDestroyed()) {
-      mainWindow.webContents.send('account-rotation-log', entry);
+      if (ROT_LOG_RENDERER_EVENTS.has(event)) {
+        safeSend('account-rotation-log', entry);
      }
+    } catch (e) { debugLog(`rot-log listener error: ${e && e.message}`); }
  });

  // Capture the manager identity at listener-registration time so the post-
@ -1473,13 +1619,11 @@ ipcMain.handle('start-upload', (_event, payload) => {
    try { await configStore.appendHistory(summary); } catch (err) {
      debugLog(`appendHistory failed: ${err.message}`);
    }
-    if (mainWindow && !mainWindow.isDestroyed()) {
-      mainWindow.webContents.send('upload-batch-done', summary);
-    }
+    safeSend('upload-batch-done', summary);

    // Shutdown after finish
    handleShutdownAfterFinish();
-    if (uploadManager === _thisManager) uploadManager = null;
+    if (uploadManager === _thisManager) { uploadManager = null; globalThis._mhuUploadManagerRef = null; }
    else debugLog('batch-done: skipping uploadManager null-out — a newer manager replaced this one mid-await');
  });

@ -1495,8 +1639,7 @@ ipcMain.handle('start-upload', (_event, payload) => {
    }).catch((err) => {
      debugLog(`startBatch REJECTED: ${err && err.stack ? err.stack : err}`);
      // Forward error to renderer as batch-done with failure
-      if (mainWindow && !mainWindow.isDestroyed()) {
-        mainWindow.webContents.send('upload-batch-done', {
+      safeSend('upload-batch-done', {
          id: 'error',
          timestamp: new Date().toISOString(),
          total: tasks.length,
@ -1505,7 +1648,6 @@ ipcMain.handle('start-upload', (_event, payload) => {
          files: [],
          error: err ? err.message : 'Unbekannter Fehler'
        });
-      }
    });
  });

@ -1575,6 +1717,33 @@ ipcMain.handle('finish-after-active', () => {
  return true;
 });

+ipcMain.handle('get-session-failed-accounts', () => {
+  return Array.from(_sessionFailedAccounts.keys());
+});
+
+ipcMain.handle('reset-session-failed-account', (_event, payload) => {
+  if (!payload || typeof payload !== 'object') return { ok: false };
+  const { hoster, accountId } = payload;
+  if (!hoster || !accountId) return { ok: false };
+  const key = `${hoster}:${accountId}`;
+  const removed = _sessionFailedAccounts.delete(key);
+  if (uploadManager && typeof uploadManager.clearFailedAccount === 'function') {
+    try { uploadManager.clearFailedAccount(hoster, accountId); } catch {}
+  }
+  rotLog(`session-failed: manual reset ${key} (was set: ${removed})`);
+  return { ok: true, removed };
+});
+
+ipcMain.handle('reset-all-session-failed-accounts', () => {
+  const count = _sessionFailedAccounts.size;
+  _sessionFailedAccounts.clear();
+  if (uploadManager && typeof uploadManager.clearAllFailedAccounts === 'function') {
+    try { uploadManager.clearAllFailedAccounts(); } catch {}
+  }
+  rotLog(`session-failed: cleared all (${count})`);
+  return { ok: true, count };
+});
+
 ipcMain.handle('get-job-log', (_event, jobId) => {
  if (!jobId || typeof jobId !== 'string') return [];
  const arr = _jobLogCollector.get(jobId);
@ -1665,6 +1834,7 @@ ipcMain.handle('create-support-bundle', async () => {
        { label: 'debug.log (last 5 MB)', path: paths.debug, maxBytes: 5 * 1024 * 1024 },
        { label: 'account-rotation.log (last 2 MB)', path: paths.accountRotation, maxBytes: 2 * 1024 * 1024 },
        { label: 'doodstream-debug.log (last 2 MB)', path: paths.doodstreamDebug, maxBytes: 2 * 1024 * 1024 },
+        { label: 'crash.log', path: path.join(paths.logDir || path.dirname(paths.debug), 'crash.log'), maxBytes: 1 * 1024 * 1024 },
        { label: 'fileuploader.log (last 1 MB)', path: paths.fileuploader, maxBytes: 1 * 1024 * 1024 }
      ]
    });
@ -1706,12 +1876,19 @@ ipcMain.handle('export-backup', async () => {
  const { canceled, filePath } = await dialog.showSaveDialog(mainWindow, {
    title: 'Backup exportieren',
    defaultPath: `multi-hoster-backup-${new Date().toISOString().slice(0, 10)}.mhu`,
-    filters: [{ name: 'Multi-Hoster Backup', extensions: ['mhu'] }]
+    filters: [
+      { name: 'Multi-Hoster Backup (verschlüsselt)', extensions: ['mhu'] },
+      { name: 'Multi-Hoster Backup (Klartext JSON)', extensions: ['json'] }
+    ]
  });
  if (canceled || !filePath) return { ok: false, canceled: true };
  const config = configStore.load();
+  if (filePath.toLowerCase().endsWith('.json')) {
+    fs.writeFileSync(filePath, JSON.stringify(config, null, 2), 'utf-8');
+  } else {
    const encrypted = backupCrypto.encrypt(config);
    fs.writeFileSync(filePath, encrypted);
+  }
  return { ok: true, path: filePath };
 });

@ -1723,7 +1900,11 @@ ipcMain.handle('import-backup', async (_event, legacyPassword) => {
  } else {
    const { canceled, filePaths } = await dialog.showOpenDialog(mainWindow, {
      title: 'Backup importieren',
-      filters: [{ name: 'Multi-Hoster Backup', extensions: ['mhu'] }],
+      filters: [
+        { name: 'Multi-Hoster Backup', extensions: ['mhu', 'json'] },
+        { name: 'Verschlüsselt (.mhu)', extensions: ['mhu'] },
+        { name: 'Klartext (.json)', extensions: ['json'] }
+      ],
      properties: ['openFile']
    });
    if (canceled || !filePaths.length) return { ok: false, canceled: true };
@ -1732,15 +1913,26 @@ ipcMain.handle('import-backup', async (_event, legacyPassword) => {
    _lastImportPath = sourcePath;
  }
  let imported;
+  const looksLikeJson = buffer.length >= 1 && (buffer[0] === 0x7B || buffer[0] === 0x20 || buffer[0] === 0x0A || buffer[0] === 0x0D || buffer[0] === 0x09 || buffer[0] === 0xEF);
+  if (looksLikeJson) {
+    try {
+      const text = buffer.toString('utf-8').replace(/^\uFEFF/, '');
+      imported = JSON.parse(text);
+    } catch (err) {
+      _lastImportPath = null;
+      return { ok: false, error: 'Klartext-Backup ist kein gültiges JSON: ' + (err.message || err) };
+    }
+  } else {
    try {
      imported = backupCrypto.decrypt(buffer, legacyPassword);
    } catch (err) {
      if (err && err.needsPassword) {
-      return { ok: false, needsPassword: true };
+        return { ok: false, needsPassword: true, hint: 'Falls dieses Backup mit der aktuellen Version erzeugt wurde, ist die Datei vermutlich beim Transfer beschädigt worden (z. B. FTP-Text-Modus). Versuch es mit einem Klartext-JSON-Export.' };
      }
      _lastImportPath = null;
      throw err;
    }
+  }
  _lastImportPath = null;
  // Validate imported data has required structure
  if (!imported || typeof imported !== 'object' || !imported.hosters || !imported.hosterSettings || !imported.globalSettings) {
@ -1857,13 +2049,9 @@ ipcMain.handle('app:check-updates', async () => {

 ipcMain.handle('app:install-update', () => {
  installUpdate((progress) => {
-    if (mainWindow && !mainWindow.isDestroyed()) {
-      mainWindow.webContents.send('app:update-progress', progress);
-    }
+    safeSend('app:update-progress', progress);
  }).catch((err) => {
-    if (mainWindow && !mainWindow.isDestroyed()) {
-      mainWindow.webContents.send('app:update-progress', { stage: 'error', error: err.message });
-    }
+    safeSend('app:update-progress', { stage: 'error', error: err.message });
  });
  return { started: true };
 });
@ -1942,9 +2130,7 @@ function startFolderMonitor(settings) {
    folderMonitor.removeAllListeners();
    folderMonitor.on('new-files', (files) => {
      debugLog(`folder-monitor: ${files.length} new file(s)`);
-      if (mainWindow && !mainWindow.isDestroyed()) {
-        mainWindow.webContents.send('folder-monitor:new-files', files);
-      }
+      safeSend('folder-monitor:new-files', files);
    });
    folderMonitor.on('error', (err) => {
      debugLog(`folder-monitor error: ${err.message}`);
@ -2188,9 +2374,7 @@ ipcMain.handle('remote:get-capture-source-id', async () => {

 // IPC: Client count updates from capture window
 ipcMain.on('remote:client-count', (_event, count) => {
-  if (mainWindow && !mainWindow.isDestroyed()) {
-    mainWindow.webContents.send('remote:client-count', count);
-  }
+  safeSend('remote:client-count', count);
 });

 // IPC: Remote settings
@ -2295,7 +2479,7 @@ ipcMain.on('drop-target:files', (_event, paths) => {
      mainWindow.show();
      mainWindow.focus();
    }
-    mainWindow.webContents.send('drop-target:files', paths);
+    safeSend('drop-target:files', paths);
  }
 });

@ -2332,9 +2516,7 @@ function handleShutdownAfterFinish() {
  const { exec } = require('child_process');

  // Notify renderer
-  if (mainWindow && !mainWindow.isDestroyed()) {
-    mainWindow.webContents.send('shutdown-countdown', { mode: shutdownMode, seconds: 60 });
-  }
+  safeSend('shutdown-countdown', { mode: shutdownMode, seconds: 60 });

  // Clear any previous countdown to prevent orphaned timers
  if (shutdownTimer) clearTimeout(shutdownTimer);
--- a/package.json
+++ b/package.json
@ -1,6 +1,6 @@
 {
  "name": "multi-hoster-uploader",
-  "version": "3.3.43",
+  "version": "3.3.55",
  "description": "Upload files to doodstream, voe, vidmoly, byse simultaneously",
  "main": "main.js",
  "scripts": {
--- a/preload.js
+++ b/preload.js
@ -30,7 +30,9 @@ contextBridge.exposeInMainWorld('api', {
  // File selection
  selectFiles: () => ipcRenderer.invoke('select-files'),
  selectFolder: () => ipcRenderer.invoke('select-folder'),
+  selectFolderWithSizes: () => ipcRenderer.invoke('select-folder-with-sizes'),
  resolveFolderFiles: (folderPath) => ipcRenderer.invoke('resolve-folder-files', folderPath),
+  getFileSizes: (paths) => ipcRenderer.invoke('get-file-sizes', paths),

  // Upload control
  startUpload: (payload) => ipcRenderer.invoke('start-upload', payload),
@ -93,6 +95,9 @@ contextBridge.exposeInMainWorld('api', {
  onUploadProgress: (callback) => {
    ipcRenderer.on('upload-progress', (_event, data) => callback(data));
  },
+  onUploadProgressBatch: (callback) => {
+    ipcRenderer.on('upload-progress-batch', (_event, batch) => callback(batch));
+  },
  onUploadBatchDone: (callback) => {
    ipcRenderer.on('upload-batch-done', (_event, data) => callback(data));
  },
@ -110,6 +115,9 @@ contextBridge.exposeInMainWorld('api', {
  },
  openLogFolder: () => ipcRenderer.invoke('open-log-folder'),
  getJobLog: (jobId) => ipcRenderer.invoke('get-job-log', jobId),
+  getSessionFailedAccounts: () => ipcRenderer.invoke('get-session-failed-accounts'),
+  resetSessionFailedAccount: (payload) => ipcRenderer.invoke('reset-session-failed-account', payload),
+  resetAllSessionFailedAccounts: () => ipcRenderer.invoke('reset-all-session-failed-accounts'),
  getLogPaths: () => ipcRenderer.invoke('get-log-paths'),
  revealLogFile: (target) => ipcRenderer.invoke('reveal-log-file', target),
  setLogVerbose: (enabled) => ipcRenderer.invoke('set-log-verbose', enabled),
--- a/renderer/app.js
+++ b/renderer/app.js
@ -63,10 +63,12 @@ const queueSortState = { key: 'filename', direction: 'asc' };
 // History state
 let historyRowsData = [];
 let historySortState = { key: 'date', direction: 'desc' };
+let _historySortClicked = false;

 // Session-specific files for the "Files" panel (resets each session)
 let sessionFilesData = [];
 const recentSortState = { key: 'date', direction: 'desc' };
+let _recentSortClicked = false;
 const selectedRecentIds = new Set();
 // Maintained incrementally — avoids O(n) filter() scans every 250ms in the status bar.
 let _sessionDoneCount = 0;
@ -75,6 +77,19 @@ let _sessionErrorCount = 0;
 // Huge with thousands of rows × thousands of incoming results.
 const _sessionFileKeys = new Set();

+window.addEventListener('error', (e) => {
+  try {
+    const msg = `RENDERER ERROR: ${e.message} at ${e.filename}:${e.lineno}:${e.colno}${e.error && e.error.stack ? '\n' + e.error.stack : ''}`;
+    if (window.api && window.api.debugLog) window.api.debugLog(msg);
+  } catch {}
+});
+window.addEventListener('unhandledrejection', (e) => {
+  try {
+    const reason = e.reason && e.reason.stack ? e.reason.stack : (e.reason && e.reason.message) || String(e.reason);
+    if (window.api && window.api.debugLog) window.api.debugLog(`RENDERER UNHANDLED REJECTION: ${reason}`);
+  } catch {}
+});
+
 // --- Init ---
 async function init() {
  config = await window.api.getConfig();
@ -92,6 +107,7 @@ async function init() {
  setupDragDrop();
  restoreQueueColumnWidths();
  loadHistory();
+  _refreshSessionFailedSnapshot();
  renderRecentUploadsPanel();
  updateUploadView();
  updateStatusBar();
@ -107,24 +123,19 @@ async function init() {
  window.api.onUpdateAvailable(showUpdateBanner);
  window.api.onUpdateProgress(handleUpdateProgress);

-  // Upload event listeners — debug log only on state transitions; the 'uploading'
-  // tick fires 4×/sec per active job and an IPC roundtrip per event would
-  // backlog the renderer↔main channel with hundreds of messages/sec.
  window.api.onUploadProgress((data) => {
-    if (data.status !== 'uploading') {
-      window.api.debugLog('RX upload-progress: ' + data.status + ' ' + data.hoster + ' ' + (data.fileName || ''));
-    }
    handleProgress(data);
  });
+  if (window.api.onUploadProgressBatch) {
+    window.api.onUploadProgressBatch((batch) => {
+      if (!Array.isArray(batch)) return;
+      for (let i = 0; i < batch.length; i++) handleProgress(batch[i]);
+    });
+  }
  window.api.onUploadBatchDone((data) => {
-    window.api.debugLog('RX upload-batch-done');
    handleBatchDone(data);
  });
  window.api.onUploadStats((data) => {
-    // Stats fire every second per upload session — skip while uploading.
-    if (data.state !== 'uploading') {
-      window.api.debugLog('RX upload-stats: state=' + data.state + ' active=' + data.activeJobs);
-    }
    handleStats(data);
  });
  window.api.onShutdownCountdown(handleShutdownCountdown);
@ -684,11 +695,12 @@ async function addDroppedFiles(fileList) {
          const folderFiles = await window.api.resolveFolderFiles(filePath);
          if (folderFiles && folderFiles.length > 0) {
            for (const fp of folderFiles) {
-              if (!existingPaths.has(fp)) {
-                const name = fp.split('\\').pop().split('/').pop();
-                newFiles.push({ path: fp, name, size: null });
-                existingPaths.add(fp);
-              }
+              const p = typeof fp === 'string' ? fp : (fp && fp.path);
+              if (!p || existingPaths.has(p)) continue;
+              const name = typeof fp === 'string' ? p.split('\\').pop().split('/').pop() : (fp.name || p.split('\\').pop().split('/').pop());
+              const size = typeof fp === 'string' ? null : (fp.size || 0);
+              newFiles.push({ path: p, name, size });
+              existingPaths.add(p);
            }
            continue;
          }
@ -719,28 +731,52 @@ async function pickFiles() {
 }

 async function pickFolder() {
+  const richFiles = window.api.selectFolderWithSizes ? await window.api.selectFolderWithSizes() : null;
+  if (richFiles && Array.isArray(richFiles)) { addPathsToQueue(richFiles); return; }
  const paths = await window.api.selectFolder();
  if (!paths) return;
  addPathsToQueue(paths);
 }

 function addPathsToQueue(paths) {
-  // Build path-Set once so dedup is O(1) per candidate instead of O(n+m).
-  // Matters when the user picks a folder with thousands of files.
  const existing = new Set();
  for (const f of selectedFiles) existing.add(f.path);
  for (const f of _pendingFiles) existing.add(f.path);

  const newFiles = [];
-  for (const p of paths) {
-    if (existing.has(p)) continue;
+  const pendingSizeFetch = [];
+  for (const entry of paths) {
+    const p = typeof entry === 'string' ? entry : (entry && entry.path);
+    if (!p || existing.has(p)) continue;
    existing.add(p);
-    const name = p.split('\\').pop().split('/').pop();
-    newFiles.push({ path: p, name, size: null });
+    const name = typeof entry === 'string' ? p.split('\\').pop().split('/').pop() : (entry.name || p.split('\\').pop().split('/').pop());
+    const size = typeof entry === 'string' ? null : (entry.size || 0);
+    newFiles.push({ path: p, name, size });
+    if (size === null || size === undefined || size === 0) pendingSizeFetch.push(p);
  }
  if (newFiles.length > 0) {
    _pendingFiles.push(...newFiles);
    openHosterModal();
+    if (pendingSizeFetch.length > 0 && window.api.getFileSizes) {
+      window.api.getFileSizes(pendingSizeFetch).then((sizeMap) => {
+        if (!sizeMap || typeof sizeMap !== 'object') return;
+        let changed = false;
+        for (const f of _pendingFiles) {
+          if (sizeMap[f.path] && (!f.size || f.size === 0)) { f.size = sizeMap[f.path]; changed = true; }
+        }
+        for (const f of selectedFiles) {
+          if (sizeMap[f.path] && (!f.size || f.size === 0)) { f.size = sizeMap[f.path]; changed = true; }
+        }
+        for (const j of queueJobs) {
+          if (sizeMap[j.file] && (!j.bytesTotal || j.bytesTotal === 0)) { j.bytesTotal = sizeMap[j.file]; changed = true; }
+        }
+        if (changed) {
+          _queueStatsCache = null;
+          if (typeof renderQueueTable === 'function') renderQueueTable();
+          if (typeof updateStatusBar === 'function') updateStatusBar();
+        }
+      }).catch(() => {});
+    }
  }
 }

@ -1447,7 +1483,7 @@ async function doBackupExport() {
  }
 }

-function askLegacyBackupPassword() {
+function askLegacyBackupPassword(hint) {
  return new Promise((resolve) => {
    const overlay = document.createElement('div');
    overlay.className = 'modal-overlay';
@ -1460,7 +1496,7 @@ function askLegacyBackupPassword() {
    const header = document.createElement('div');
    header.className = 'modal-header';
    const h3 = document.createElement('h3');
-    h3.textContent = 'Passwort erforderlich';
+    h3.textContent = 'Backup nicht entschlüsselbar';
    header.appendChild(h3);

    const body = document.createElement('div');
@ -1468,7 +1504,15 @@ function askLegacyBackupPassword() {
    const p = document.createElement('p');
    p.style.margin = '0 0 10px';
    p.style.fontSize = '13px';
-    p.textContent = 'Dieses Backup wurde mit einem Passwort verschlüsselt.';
+    p.textContent = 'Wenn das Backup mit der alten Passwort-Option (vor v3.0) erstellt wurde, hier eingeben.';
+    if (hint) {
+      const p2 = document.createElement('p');
+      p2.style.margin = '0 0 10px';
+      p2.style.fontSize = '12px';
+      p2.style.color = 'var(--text-dim)';
+      p2.textContent = hint;
+      body.appendChild(p2);
+    }
    const input = document.createElement('input');
    input.type = 'password';
    input.className = 'key-input';
@ -1512,7 +1556,7 @@ async function doBackupImport(legacyPassword) {
    const result = await window.api.importBackup(pw);
    if (!result || result.canceled) return;
    if (result.needsPassword) {
-      const entered = await askLegacyBackupPassword();
+      const entered = await askLegacyBackupPassword(result.hint);
      if (entered) doBackupImport(entered);
      return;
    }
@ -1877,6 +1921,14 @@ async function cancelUpload() {

 // --- Progress handling ---
 function handleProgress(data) {
+  try {
+    if (!data || typeof data !== 'object') return;
+    _handleProgressImpl(data);
+  } catch (err) {
+    if (window.api && window.api.debugLog) window.api.debugLog(`handleProgress error: ${err && err.stack ? err.stack : err}`);
+  }
+}
+function _handleProgressImpl(data) {
  let job = data.jobId ? _jobIndexById.get(data.jobId) : null;
  if (!job && data.uploadId) job = _jobIndexByUploadId.get(data.uploadId);
  if (!job) {
@ -2056,9 +2108,96 @@ function handleBatchDone(summary) {

  lastUploadStats = { state: 'idle', globalSpeedKbs: 0, totalBytes: lastUploadStats.totalBytes, elapsed: lastUploadStats.elapsed, activeJobs: 0 };
  updateStatusBar();
+  _maybeShowBatchSummary(summary);
+  _refreshSessionFailedSnapshot();
+}
+
+let _sessionFailedKeys = new Set();
+async function _refreshSessionFailedSnapshot() {
+  if (!window.api || !window.api.getSessionFailedAccounts) return;
+  try {
+    const keys = await window.api.getSessionFailedAccounts();
+    _sessionFailedKeys = new Set(Array.isArray(keys) ? keys : []);
+    renderAccounts();
+  } catch { /* ignore */ }
+}
+
+function _maybeShowBatchSummary(summary) {
+  if (!window.Stats || !summary) return;
+  const buckets = window.Stats.summarizeBatchErrors(summary);
+  const total = Object.values(buckets).reduce((n, arr) => n + arr.length, 0);
+  if (total === 0) return;
+
+  const modal = document.getElementById('batchSummaryModal');
+  if (!modal) return;
+  const list = modal.querySelector('#batchSummaryList');
+  const retryAllBtn = modal.querySelector('#batchSummaryRetryAll');
+  const retryTransientBtn = modal.querySelector('#batchSummaryRetryTransient');
+  const closeBtn = modal.querySelector('#batchSummaryClose');
+
+  const order = ['hoster-transient', 'network', 'unknown', 'file-rejected', 'account-error', 'aborted'];
+  list.innerHTML = order
+    .filter(cat => buckets[cat].length > 0)
+    .map(cat => {
+      const items = buckets[cat];
+      const sample = items.slice(0, 3).map(i => `<li>${escapeHtml(i.fileName)} → ${escapeHtml(i.hoster)}: <em>${escapeHtml(i.error)}</em></li>`).join('');
+      const more = items.length > 3 ? `<li><em>… +${items.length - 3} weitere</em></li>` : '';
+      const retryable = window.Stats.isRetryableCategory(cat);
+      const tag = retryable ? '<span class="batch-cat-tag retryable">erneut versuchbar</span>' : '<span class="batch-cat-tag">manuell</span>';
+      return `<div class="batch-cat" data-category="${escapeAttr(cat)}">
+        <div class="batch-cat-head"><strong>${escapeHtml(window.Stats.CATEGORY_LABELS[cat] || cat)}</strong> <span class="batch-cat-count">${items.length}</span> ${tag}</div>
+        <ul class="batch-cat-list">${sample}${more}</ul>
+      </div>`;
+    }).join('');
+
+  const transientCount = ['hoster-transient', 'network', 'unknown'].reduce((n, c) => n + buckets[c].length, 0);
+  retryTransientBtn.textContent = transientCount > 0 ? `Transiente erneut hochladen (${transientCount})` : 'Keine transienten Fehler';
+  retryTransientBtn.disabled = transientCount === 0;
+  const allRetryable = total - buckets['aborted'].length;
+  retryAllBtn.textContent = `Alle Fehler erneut versuchen (${allRetryable})`;
+  retryAllBtn.disabled = allRetryable === 0;
+
+  const close = () => { modal.style.display = 'none'; };
+  closeBtn.onclick = close;
+  retryAllBtn.onclick = () => { _retryFailedFromBuckets(buckets, false); close(); };
+  retryTransientBtn.onclick = () => { _retryFailedFromBuckets(buckets, true); close(); };
+  modal.style.display = 'flex';
+}
+
+function _retryFailedFromBuckets(buckets, transientOnly) {
+  const cats = transientOnly ? ['hoster-transient', 'network', 'unknown'] : ['hoster-transient', 'network', 'unknown', 'file-rejected', 'account-error'];
+  const toRetry = [];
+  for (const cat of cats) {
+    for (const item of (buckets[cat] || [])) toRetry.push(item);
+  }
+  if (toRetry.length === 0) return;
+  const jobsToRetry = [];
+  for (const item of toRetry) {
+    const job = queueJobs.find(j => (j.fileName === item.fileName) && (j.hoster === item.hoster) && (j.status === 'error' || j.status === 'skipped'));
+    if (job) {
+      job.status = 'queued';
+      job.progress = 0;
+      job.bytesUploaded = 0;
+      job.error = null;
+      job.result = null;
+      jobsToRetry.push(job);
+    }
+  }
+  if (jobsToRetry.length === 0) { showCopyToast('Keine passenden Jobs für Retry gefunden.'); return; }
+  renderQueueTable();
+  showCopyToast(`${jobsToRetry.length} Job(s) zum erneuten Upload zurückgesetzt`);
+  if (typeof startUpload === 'function') startUpload();
 }

 function handleStats(data) {
+  try {
+    if (!data || typeof data !== 'object') return;
+    _handleStatsImpl(data);
+  } catch (err) {
+    if (window.api && window.api.debugLog) window.api.debugLog(`handleStats error: ${err && err.stack ? err.stack : err}`);
+  }
+}
+function _handleStatsImpl(data) {
  lastUploadStats = {
    state: data.state || 'idle',
    globalSpeedKbs: data.globalSpeedKbs || 0,
@ -2386,7 +2525,7 @@ function _computeQueueStats() {
  }

  _queueStatsCache = { total, remaining, inProgress, done, errors, bytesRemaining, totalSize, remainingSize, inProgressBytes };
-  queueMicrotask(() => { _queueStatsCache = null; });
+  (typeof queueMicrotask === 'function' ? queueMicrotask : (fn) => Promise.resolve().then(fn))(() => { _queueStatsCache = null; });
  return _queueStatsCache;
 }

@ -2447,8 +2586,10 @@ async function executeHealthCheck(hosters, _mode) {
 }

 async function runHealthCheck(mode = 'manual', requestedHosters = null) {
-  if (healthCheckRunning || (uploading && mode === 'manual')) return [];
-  // Build check list: all enabled accounts with creds
+  if (healthCheckRunning) {
+    if (mode === 'manual') showCopyToast('Account-Check läuft bereits.');
+    return [];
+  }
  let hosters;
  if (Array.isArray(requestedHosters) && requestedHosters.length > 0) {
    hosters = requestedHosters;
@ -3118,11 +3259,16 @@ function _buildAccountCardHtml(name, account, idx) {
  const toggleLabel = isDisabled ? 'Aktivieren' : 'Deaktivieren';
  const priorityLabel = idx === 0 ? 'Primär' : `Fallback #${idx}`;

+  const isSessionPaused = _sessionFailedKeys.has(`${name}:${account.id}`);
+  const sessionPausedBadge = isSessionPaused
+    ? `<span class="account-session-paused" title="Account wurde diese Session als fehlerhaft markiert. Klick = Wieder als aktiv markieren.">Pausiert (Session) <button class="account-session-reactivate" data-account-reactivate="${account.id}" data-account-reactivate-hoster="${name}" title="Wieder aktivieren">↻</button></span>`
+    : '';
+
  return `
-    <div class="account-card${isDisabled ? ' account-disabled' : ''}" data-account-id="${account.id}" data-account-hoster="${name}" draggable="true">
+    <div class="account-card${isDisabled ? ' account-disabled' : ''}${isSessionPaused ? ' account-session-paused-card' : ''}" data-account-id="${account.id}" data-account-hoster="${name}" draggable="true">
      <div class="account-card-drag-handle" title="Ziehen zum Sortieren">&#9776;</div>
      <div class="account-card-info">
-        <div class="account-card-title">${escapeHtml(getAccountDisplayName(name, account))} <span class="account-priority-badge">${priorityLabel}</span></div>
+        <div class="account-card-title">${escapeHtml(getAccountDisplayName(name, account))} <span class="account-priority-badge">${priorityLabel}</span> ${sessionPausedBadge}</div>
        <div class="account-card-subtitle" title="${escapeAttr(subtitleText)}">${escapeHtml(subtitleText)}${st.message && !isDisabled ? ` • ${escapeHtml(st.message)}` : ''}</div>
      </div>
      <span class="account-status status-${statusClass}">
@ -3267,6 +3413,10 @@ function _buildAccountHosterGroupHtml(name, accounts) {
  let cardsHtml = '';
  accounts.forEach((account, idx) => { cardsHtml += _buildAccountCardHtml(name, account, idx); });
  const bodyStyle = isOpen ? '' : 'style="display:none"';
+  const lifeStat = _hosterLifetimeStat(name);
+  const lifeMeta = lifeStat && lifeStat.total > 0
+    ? `<span class="account-hoster-group-meta" title="Erfolgsrate aus den letzten ${lifeStat.total} Uploads dieses Hosters">${Math.round(lifeStat.rate * 100)}% ok (${lifeStat.total})</span>`
+    : '';
  return `<div class="account-hoster-group" data-hoster-group="${name}">
    <div class="account-hoster-group-header" data-hoster-toggle="${name}">
      <span class="panel-arrow">${arrow}</span>
@ -3275,11 +3425,21 @@ function _buildAccountHosterGroupHtml(name, accounts) {
      <span class="account-hoster-group-count">${countLabel}</span>
      ${summary.disabled ? `<span class="account-hoster-group-meta">${summary.disabled} deaktiviert</span>` : ''}
      ${summary.error ? `<span class="account-hoster-group-meta error">${summary.error} Fehler</span>` : ''}
+      ${lifeMeta}
    </div>
    <div class="account-hoster-group-body" ${bodyStyle}>${cardsHtml}</div>
  </div>`;
 }

+let _hosterLifetimeCache = null;
+function _hosterLifetimeStat(name) {
+  if (!_hosterLifetimeCache && window.Stats && Array.isArray(window._historyForStats)) {
+    _hosterLifetimeCache = window.Stats.summarizePerHoster(window._historyForStats, { lastNBatches: 50 });
+  }
+  return _hosterLifetimeCache ? _hosterLifetimeCache[name] : null;
+}
+function _invalidateHosterLifetimeCache() { _hosterLifetimeCache = null; }
+
 // Single set of delegated listeners on the accounts container. Bound once on
 // the first render and reused for every subsequent in-place update / card
 // swap. Previously we rebound 4 × N button listeners + 5 × N drag listeners
@ -3309,6 +3469,18 @@ function bindAccountListeners(container) {
    if (btn.dataset.accountEdit) return openAccountModal(btn.dataset.accountEdit);
    if (btn.dataset.accountDelete) return openDeleteAccountModal(btn.dataset.accountDelete);
    if (btn.dataset.accountCheck) return checkSingleAccount(btn.dataset.accountCheck);
+    if (btn.dataset.accountReactivate) {
+      const accountId = btn.dataset.accountReactivate;
+      const hoster = btn.dataset.accountReactivateHoster;
+      if (!hoster || !accountId) return;
+      e.stopPropagation();
+      window.api.resetSessionFailedAccount({ hoster, accountId }).then(() => {
+        _sessionFailedKeys.delete(`${hoster}:${accountId}`);
+        renderAccounts();
+        showCopyToast(`${getHosterLabel(hoster)} Account wieder aktiv — nächste Batch verwendet ihn`);
+      }).catch(() => {});
+      return;
+    }
  });

  let draggedCard = null;
@ -3544,7 +3716,10 @@ async function deleteAccount(accountId) {
  // Fire-and-forget the persist. The earlier `await getConfig()` round-trip
  // was redundant (we already have the truth in memory) and was the main
  // source of perceived lag on add/delete.
-  window.api.saveConfig({ hosters: config.hosters }).catch(() => {});
+  window.api.saveConfig({ hosters: config.hosters }).catch((err) => {
+    if (window.api && window.api.debugLog) window.api.debugLog(`deleteAccount saveConfig failed: ${err && err.message ? err.message : err}`);
+    showCopyToast('Account-Löschung konnte nicht persistiert werden — bitte erneut versuchen.');
+  });
 }

 function readAccountCredsFromModal(authType) {
@ -3750,6 +3925,15 @@ async function _commitAccount(ctx, creds, validatedStatus, validatedMessage) {
    const idx = config.hosters[ctx.hosterName].findIndex(a => a.id === accountId);
    if (idx >= 0) {
      config.hosters[ctx.hosterName][idx] = { ...config.hosters[ctx.hosterName][idx], ...creds };
+    } else {
+      _accountModalBusy = false;
+      const _sb = document.getElementById('saveAccountBtn'); if (_sb) _sb.disabled = false;
+      const _st = document.getElementById('accountModalStatus');
+      if (_st) {
+        _st.textContent = 'Account nicht mehr in der Config — wurde extern gelöscht. Modal schließen und neu anlegen.';
+        _st.className = 'account-modal-status error';
+      }
+      return;
    }
  } else {
    accountId = `${ctx.hosterName}-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`;
@ -3798,6 +3982,8 @@ function _hideOtpField() {
 // --- History ---
 async function loadHistory() {
  const history = await window.api.getHistory();
+  window._historyForStats = history || [];
+  _invalidateHosterLifetimeCache();
  const container = document.getElementById('historyContainer');

  if (!history || history.length === 0) {
@ -3995,17 +4181,32 @@ function renderHistoryTable(container) {
    ${headerCell('date', 'Date')}${headerCell('filename', 'Filename')}${headerCell('host', 'Host')}${headerCell('link', 'Link')}
  </tr></thead><tbody>`;

-  rows.forEach(row => {
-    html += `<tr class="history-row${row.isError ? ' error' : ''}" data-link="${escapeAttr(row.link)}">
-      <td class="col-date">${escapeHtml(row.date)}</td>
-      <td class="col-filename">${escapeHtml(row.filename)}</td>
-      <td class="col-host">${escapeHtml(row.host)}</td>
-      <td class="col-link">${escapeHtml(row.link)}</td>
-    </tr>`;
-  });
-
-  html += '</tbody></table>';
-  container.innerHTML = html;
+  const parts = [html];
+  const len = rows.length;
+  for (let i = 0; i < len; i++) {
+    const row = rows[i];
+    const link = row.link || '';
+    const date = escapeHtml(row.date);
+    const filename = escapeHtml(row.filename);
+    const host = escapeHtml(row.host);
+    const linkHtml = escapeHtml(link);
+    const linkAttr = escapeAttr(link);
+    parts.push('<tr class="history-row');
+    if (row.isError) parts.push(' error');
+    parts.push('" data-link="');
+    parts.push(linkAttr);
+    parts.push('"><td class="col-date">');
+    parts.push(date);
+    parts.push('</td><td class="col-filename">');
+    parts.push(filename);
+    parts.push('</td><td class="col-host">');
+    parts.push(host);
+    parts.push('</td><td class="col-link">');
+    parts.push(linkHtml);
+    parts.push('</td></tr>');
+  }
+  parts.push('</tbody></table>');
+  container.innerHTML = parts.join('');

  // Delegated listeners: bind once per render-target instead of once per
  // row/header. With a 5000-row history the per-row bind path was a
@ -4017,8 +4218,14 @@ function renderHistoryTable(container) {
      const th = e.target.closest('th.sortable');
      if (th && container.contains(th)) {
        const key = th.dataset.historySort;
-        if (historySortState.key === key) historySortState.direction = historySortState.direction === 'asc' ? 'desc' : 'asc';
-        else { historySortState.key = key; historySortState.direction = key === 'date' ? 'desc' : 'asc'; }
+        const defaultDir = key === 'date' ? 'desc' : 'asc';
+        if (!_historySortClicked || historySortState.key !== key) {
+          _historySortClicked = true;
+          historySortState.key = key;
+          historySortState.direction = defaultDir;
+        } else {
+          historySortState.direction = historySortState.direction === 'asc' ? 'desc' : 'asc';
+        }
        renderHistoryTable(container);
        return;
      }
@ -4074,11 +4281,13 @@ function setupListeners() {
    const th = e.target.closest('th[data-recent-sort]');
    if (!th) return;
    const key = th.dataset.recentSort;
-    if (recentSortState.key === key) {
-      recentSortState.direction = recentSortState.direction === 'desc' ? 'asc' : 'desc';
-    } else {
+    const defaultDir = key === 'date' ? 'desc' : 'asc';
+    if (!_recentSortClicked || recentSortState.key !== key) {
+      _recentSortClicked = true;
      recentSortState.key = key;
-      recentSortState.direction = key === 'date' ? 'desc' : 'asc';
+      recentSortState.direction = defaultDir;
+    } else {
+      recentSortState.direction = recentSortState.direction === 'desc' ? 'asc' : 'desc';
    }
    renderRecentUploadsPanel();
  });
@ -4385,14 +4594,20 @@ async function importUploadLog() {

 // --- Link operations ---
 function copyAllLinks() {
-  const links = queueJobs
+  const rows = queueJobs
    .filter(j => j.status === 'done' && j.result)
-    .map(j => j.result.download_url || j.result.embed_url || '')
-    .filter(Boolean);
-  if (links.length > 0) {
-    window.api.copyToClipboard(links.join('\n'));
-    showCopyToast(`${links.length} Links kopiert`);
-  }
+    .map(j => ({
+      fileName: j.fileName || '',
+      hoster: j.hoster || '',
+      url: j.result.download_url || j.result.embed_url || ''
+    }))
+    .filter(r => r.url);
+  if (rows.length === 0) return;
+  const formatEl = document.getElementById('linkExportFormat');
+  const fmt = (formatEl && formatEl.value) || 'plain';
+  const text = window.Stats ? window.Stats.formatLinks(rows, fmt) : rows.map(r => r.url).join('\n');
+  window.api.copyToClipboard(text);
+  showCopyToast(`${rows.length} Link${rows.length === 1 ? '' : 's'} als ${fmt.toUpperCase()} kopiert`);
 }

 // --- Utilities ---
@ -4666,4 +4881,15 @@ function updateStatsPanel() {
 }

 // --- Start ---
-init();
+init().catch((err) => {
+  try {
+    if (window.api && window.api.debugLog) window.api.debugLog(`init failed: ${err && err.stack ? err.stack : err}`);
+    const root = document.getElementById('app') || document.body;
+    if (root) {
+      const banner = document.createElement('div');
+      banner.style.cssText = 'position:fixed;top:0;left:0;right:0;background:#5a1e1e;color:#fff;padding:8px;z-index:99999;font-family:sans-serif;font-size:13px';
+      banner.textContent = 'Initialisierung fehlgeschlagen: ' + (err && err.message ? err.message : err) + ' — bitte Diagnose-Paket exportieren oder Programm neu starten.';
+      root.appendChild(banner);
+    }
+  } catch {}
+});
--- a/renderer/index.html
+++ b/renderer/index.html
@ -93,6 +93,14 @@

        <div class="queue-actions" id="queueActions" style="display:none">
          <button class="btn btn-xs btn-primary" id="copyAllLinksBtn">Alle Links kopieren</button>
+          <select class="hs-input" id="linkExportFormat" title="Ausgabe-Format der kopierten Links" style="max-width:none;width:auto;min-width:130px">
+            <option value="plain">Plaintext</option>
+            <option value="bbcode">BBCode</option>
+            <option value="markdown">Markdown</option>
+            <option value="html">HTML</option>
+            <option value="csv">CSV</option>
+            <option value="json">JSON</option>
+          </select>
          <button class="btn btn-xs btn-secondary" id="retryFailedBtn" style="display:none">Fehlgeschlagene erneut</button>
          <button class="btn btn-xs btn-secondary" id="importLogBtn" title="Log importieren — bereits hochgeladene aus Queue entfernen">Log importieren</button>
        </div>
@ -334,9 +342,26 @@
    </div>
  </div>

+  <div class="modal" id="batchSummaryModal" style="display:none">
+    <div class="modal-content" style="max-width:680px">
+      <div class="modal-header">
+        <h2>Batch-Zusammenfassung</h2>
+        <button class="icon-btn" id="batchSummaryClose" aria-label="Schließen">&times;</button>
+      </div>
+      <div class="modal-body">
+        <div id="batchSummaryList"></div>
+      </div>
+      <div class="modal-footer">
+        <button class="btn btn-secondary" id="batchSummaryRetryTransient">Transiente erneut hochladen</button>
+        <button class="btn btn-primary" id="batchSummaryRetryAll">Alle Fehler erneut versuchen</button>
+      </div>
+    </div>
+  </div>
+
  <script src="../lib/queue-prune.js"></script>
  <script src="../lib/queue-dedup.js"></script>
  <script src="../lib/log-mode.js"></script>
+  <script src="../lib/stats.js"></script>
  <script src="../lib/throttled-cache.js"></script>
  <script src="../lib/coalesced-set.js"></script>
  <script src="app.js"></script>
--- a/renderer/styles.css
+++ b/renderer/styles.css
@ -916,6 +916,40 @@ select.hs-input { max-width: none; width: auto; min-width: 140px; }
  color: var(--danger, #e57373);
  background: rgba(229, 115, 115, 0.12);
 }
+.account-session-paused {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  font-size: 10px;
+  color: #f0c36c;
+  background: rgba(240, 195, 108, 0.12);
+  padding: 1px 6px;
+  border-radius: 4px;
+  margin-left: 6px;
+}
+.account-session-reactivate {
+  background: none;
+  border: none;
+  color: inherit;
+  cursor: pointer;
+  font-size: 12px;
+  line-height: 1;
+  padding: 0 2px;
+}
+.account-session-reactivate:hover { color: #fff; }
+.account-session-paused-card { opacity: 0.85; }
+.batch-cat {
+  margin-bottom: 10px;
+  padding: 6px 8px;
+  border-radius: 6px;
+  background: rgba(255,255,255,0.03);
+}
+.batch-cat-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; font-size: 13px; }
+.batch-cat-count { color: var(--text-muted); font-variant-numeric: tabular-nums; }
+.batch-cat-tag { font-size: 10px; padding: 1px 6px; border-radius: 4px; background: rgba(255,255,255,0.06); color: var(--text-muted); }
+.batch-cat-tag.retryable { background: rgba(76, 175, 80, 0.18); color: #a5d6a7; }
+.batch-cat-list { margin: 0; padding-left: 18px; font-size: 11px; color: var(--text-muted); }
+.batch-cat-list em { color: var(--text-muted); font-style: italic; }
 .account-hoster-group-body {
  padding: 8px;
  border-top: 1px solid var(--border);
--- a/tests/stats.test.js
+++ b/tests/stats.test.js
@ -0,0 +1,132 @@
+const test = require('node:test');
+const assert = require('node:assert');
+const {
+  summarizePerHoster,
+  classifyErrorCategory,
+  summarizeBatchErrors,
+  isRetryableCategory
+} = require('../lib/stats');
+
+function makeBatch(timestamp, results) {
+  return {
+    id: 'b-' + timestamp,
+    timestamp: new Date(timestamp).toISOString(),
+    files: [{ name: 'foo.mp4', size: 1, results }]
+  };
+}
+
+test('summarizePerHoster counts ok and fail per hoster across all batches', () => {
+  const history = [
+    makeBatch(1, [
+      { hoster: 'voe.sx', status: 'done' },
+      { hoster: 'byse.sx', status: 'error', error: 'Not video file format' }
+    ]),
+    makeBatch(2, [
+      { hoster: 'voe.sx', status: 'done' },
+      { hoster: 'voe.sx', status: 'error', error: 'CSRF' },
+      { hoster: 'byse.sx', status: 'done' }
+    ])
+  ];
+  const s = summarizePerHoster(history);
+  assert.strictEqual(s['voe.sx'].ok, 2);
+  assert.strictEqual(s['voe.sx'].fail, 1);
+  assert.strictEqual(s['voe.sx'].total, 3);
+  assert.strictEqual(Math.round(s['voe.sx'].rate * 100), 67);
+  assert.strictEqual(s['byse.sx'].ok, 1);
+  assert.strictEqual(s['byse.sx'].fail, 1);
+  assert.strictEqual(s['byse.sx'].rate, 0.5);
+});
+
+test('summarizePerHoster honors sinceMs cutoff', () => {
+  const history = [
+    makeBatch(1000, [{ hoster: 'voe.sx', status: 'done' }]),
+    makeBatch(5000, [{ hoster: 'voe.sx', status: 'error', error: 'x' }])
+  ];
+  const s = summarizePerHoster(history, { sinceMs: 3000 });
+  assert.strictEqual(s['voe.sx'].ok, 0);
+  assert.strictEqual(s['voe.sx'].fail, 1);
+});
+
+test('summarizePerHoster honors lastNBatches (newest first)', () => {
+  const history = [
+    makeBatch(1000, [{ hoster: 'voe.sx', status: 'done' }]),
+    makeBatch(2000, [{ hoster: 'voe.sx', status: 'done' }]),
+    makeBatch(3000, [{ hoster: 'voe.sx', status: 'error', error: 'x' }])
+  ];
+  const s = summarizePerHoster(history, { lastNBatches: 1 });
+  assert.strictEqual(s['voe.sx'].ok, 0);
+  assert.strictEqual(s['voe.sx'].fail, 1);
+});
+
+test('summarizePerHoster handles empty / malformed input', () => {
+  assert.deepStrictEqual(summarizePerHoster(null), {});
+  assert.deepStrictEqual(summarizePerHoster([]), {});
+  assert.deepStrictEqual(summarizePerHoster([{ id: 'x', files: null }]), {});
+});
+
+test('classifyErrorCategory: file-rejected phrases', () => {
+  assert.strictEqual(classifyErrorCategory('Byse lehnte Datei ab: Not video file format'), 'file-rejected');
+  assert.strictEqual(classifyErrorCategory('Duplicate file already exists'), 'file-rejected');
+  assert.strictEqual(classifyErrorCategory('Datei zu groß (Max: 5 GB)'), 'file-rejected');
+});
+
+test('classifyErrorCategory: account-error phrases', () => {
+  assert.strictEqual(classifyErrorCategory('Quota exceeded'), 'account-error');
+  assert.strictEqual(classifyErrorCategory('account banned'), 'account-error');
+  assert.strictEqual(classifyErrorCategory('not enough disk space'), 'account-error');
+});
+
+test('classifyErrorCategory: hoster-transient phrases', () => {
+  assert.strictEqual(classifyErrorCategory('CSRF-Token nicht gefunden'), 'hoster-transient');
+  assert.strictEqual(classifyErrorCategory('Kein Upload-Server erhalten: server busy'), 'hoster-transient');
+  assert.strictEqual(classifyErrorCategory('Kein Filecode'), 'hoster-transient');
+});
+
+test('classifyErrorCategory: network phrases', () => {
+  assert.strictEqual(classifyErrorCategory('socket hang up'), 'network');
+  assert.strictEqual(classifyErrorCategory('fetch failed'), 'network');
+  assert.strictEqual(classifyErrorCategory('Timeout while reading'), 'network');
+});
+
+test('classifyErrorCategory: aborted is its own bucket (not retryable)', () => {
+  assert.strictEqual(classifyErrorCategory('Abgebrochen'), 'aborted');
+  assert.strictEqual(isRetryableCategory('aborted'), false);
+});
+
+test('classifyErrorCategory: unknown for everything else', () => {
+  assert.strictEqual(classifyErrorCategory(''), 'unknown');
+  assert.strictEqual(classifyErrorCategory(null), 'unknown');
+  assert.strictEqual(classifyErrorCategory('Some weird thing'), 'unknown');
+});
+
+test('summarizeBatchErrors buckets results by category', () => {
+  const summary = {
+    files: [
+      { name: 'a.mp4', results: [
+        { hoster: 'voe.sx', status: 'done' },
+        { hoster: 'byse.sx', status: 'error', error: 'Not video file format' }
+      ] },
+      { name: 'b.mp4', results: [
+        { hoster: 'voe.sx', status: 'error', error: 'CSRF' },
+        { hoster: 'doodstream.com', status: 'error', error: 'socket hang up' }
+      ] }
+    ]
+  };
+  const buckets = summarizeBatchErrors(summary);
+  assert.strictEqual(buckets['file-rejected'].length, 1);
+  assert.strictEqual(buckets['file-rejected'][0].hoster, 'byse.sx');
+  assert.strictEqual(buckets['hoster-transient'].length, 1);
+  assert.strictEqual(buckets['hoster-transient'][0].hoster, 'voe.sx');
+  assert.strictEqual(buckets['network'].length, 1);
+  assert.strictEqual(buckets['network'][0].hoster, 'doodstream.com');
+  assert.strictEqual(buckets['account-error'].length, 0);
+});
+
+test('isRetryableCategory: only transient + network + unknown retry-worthy', () => {
+  assert.strictEqual(isRetryableCategory('hoster-transient'), true);
+  assert.strictEqual(isRetryableCategory('network'), true);
+  assert.strictEqual(isRetryableCategory('unknown'), true);
+  assert.strictEqual(isRetryableCategory('file-rejected'), false);
+  assert.strictEqual(isRetryableCategory('account-error'), false);
+  assert.strictEqual(isRetryableCategory('aborted'), false);
+});
--- a/tests/upload-manager.test.js
+++ b/tests/upload-manager.test.js
@ -31,6 +31,7 @@ describe('UploadManager', () => {
    const origRequire = module.constructor.prototype.require;
    const hosters = require('../lib/hosters');
    hosters.uploadFile = mockUploadFile;
+    hosters.prefetchBaseline = async () => null;

    // Mock fs.statSync for test file paths
    const fs = require('fs');
@ -55,8 +56,8 @@ describe('UploadManager', () => {
    ]);

    const statuses = events.map(e => e.status);
-    assert.ok(statuses.includes('queued'), 'should have queued status');
    assert.ok(statuses.includes('done'), 'should have done status');
+    assert.ok(events.length > 0, 'should emit at least one progress event');
  });

  it('emits batch-done with correct summary', async () => {
Author	SHA1	Message	Date
Administrator	f0fb5f881f	release: v3.3.55	2026-06-08 23:04:14 +02:00
Administrator	d3fda31243	fix(ui): ETA includes waiting jobs — folder-added files now ship with bytesTotal	2026-06-08 23:03:29 +02:00
Administrator	127807d62a	release: v3.3.54	2026-06-08 22:03:41 +02:00
Administrator	6cd7498f70	fix(critical): safeSend infinite recursion + queueMicrotask, plus 6 audit findings	2026-06-08 22:03:19 +02:00
Administrator	ddf2710fc6	release: v3.3.53	2026-06-08 21:28:34 +02:00
Administrator	0f57aef7c7	fix(stability): wrap hot timers/callbacks in try/catch, safeSend, updater waits for batch	2026-06-08 21:28:12 +02:00
Administrator	f0608dcda1	release: v3.3.52	2026-06-08 21:19:19 +02:00
Administrator	9b10a4356f	feat(diagnostics): full crash instrumentation — never silently die again	2026-06-08 21:18:54 +02:00
Administrator	d159ac484a	release: v3.3.51	2026-06-08 19:22:54 +02:00
Administrator	f4b5fadc5f	fix(ui): first click on sort header sets default direction instead of toggling	2026-06-08 19:22:29 +02:00
Administrator	169817f707	release: v3.3.50	2026-06-08 14:20:16 +02:00
Administrator	1418c2bc17	feat(backup): plain JSON export/import + clearer error when decrypt fails	2026-06-08 14:19:47 +02:00
Administrator	8d33141294	release: v3.3.49	2026-06-08 03:04:25 +02:00
Administrator	35341b522a	fix(accounts): allow health check during active uploads + toast when already running	2026-06-08 03:04:00 +02:00
Administrator	f9aa7f4168	release: v3.3.48	2026-06-08 01:30:19 +02:00
Administrator	d9199f8aaf	fix(perf): chunked startBatch + async rotLog — kill remaining 30s freeze on 5k+ jobs	2026-06-08 01:29:31 +02:00
Administrator	ba4642e09a	release: v3.3.47	2026-06-07 21:11:53 +02:00
Administrator	d59c5c1df8	perf: per-batch baseline cache, async folder walk, history-table fast path, progress IPC batching	2026-06-07 21:11:04 +02:00
Administrator	4bb18f7abc	release: v3.3.46	2026-06-07 20:59:34 +02:00
Administrator	125e5f55ea	fix(perf): kill per-progress renderer-to-main IPC + drop redundant queued emit + cache fileSize	2026-06-07 20:59:07 +02:00
Administrator	79fe3037eb	release: v3.3.45	2026-06-07 20:41:25 +02:00
Administrator	d280765feb	fix(perf): freeze on Start with 2000+ jobs — gate probe + rot-log behind semaphore	2026-06-07 20:40:55 +02:00
Administrator	b0b86e5016	release: v3.3.44	2026-06-07 20:33:07 +02:00
Administrator	cf35f4401d	feat(ui): per-hoster success rate, session-paused badge, post-batch retry, link export formats	2026-06-07 20:32:35 +02:00