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simple-notes-sync/CHANGELOG.md
inventory69 547c0a1011 v1.3.2: Lint Cleanup & Code Quality 
- Complete lint cleanup (Phase 1-7)
- Replace magic numbers with constants
- Remove unused imports/members
- Add Logger.w() for swallowed exceptions
- Custom SyncException for better error handling
- ConstructorParameterNaming with @SerializedName
- ReturnCount & Destructuring with @Suppress
- F-Droid: Add privacy notice for file logging
- Update docs (FEATURES.md, README.md)
- Add fastlane changelogs for versionCode 10
2026-01-10 00:57:28 +01:00

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# Changelog
All notable changes to Simple Notes Sync will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
---
## [1.3.2] - 2026-01-10
### Changed
- **🧹 Code-Qualität: "Clean Slate" Release**
- Alle einfachen Lint-Issues behoben (Phase 1-7 des Cleanup-Plans)
- Unused Imports und Members entfernt
- Magic Numbers durch benannte Konstanten ersetzt
- SwallowedExceptions mit Logger.w() versehen
- MaxLineLength-Verstöße reformatiert
- ConstructorParameterNaming (snake_case → camelCase mit @SerializedName)
- Custom Exceptions: SyncException.kt und ValidationException.kt erstellt
### Added
- **📝 F-Droid Privacy Notice**
- Datenschutz-Hinweis für die Datei-Logging-Funktion
- Erklärt dass Logs nur lokal gespeichert werden
- Erfüllt F-Droid Opt-in Consent-Anforderungen
### Technical Improvements
- **⚡ Neue Konstanten für bessere Wartbarkeit**
- `SYNC_COMPLETED_DELAY_MS`, `ERROR_DISPLAY_DELAY_MS` (MainActivity)
- `CONNECTION_TIMEOUT_MS` (SettingsActivity)
- `SOCKET_TIMEOUT_MS`, `MAX_FILENAME_LENGTH`, `ETAG_PREVIEW_LENGTH` (WebDavSyncService)
- `AUTO_CANCEL_TIMEOUT_MS` (NotificationHelper)
- RFC 1918 IP-Range Konstanten (UrlValidator)
- `DAYS_THRESHOLD`, `TRUNCATE_SUFFIX_LENGTH` (Extensions)
- **🔒 @Suppress Annotations für legitime Patterns**
- ReturnCount: Frühe Returns für Validierung sind idiomatisch
- LoopWithTooManyJumpStatements: Komplexe Sync-Logik dokumentiert
### Notes
- Komplexe Refactorings (LargeClass, LongMethod) für v1.3.3+ geplant
- Deprecation-Warnungen (LocalBroadcastManager, ProgressDialog) bleiben bestehen
---
## [1.3.1] - 2026-01-08
### Fixed
- **🔧 Multi-Device JSON Sync (Danke an Thomas aus Bielefeld)**
- JSON-Dateien werden jetzt korrekt zwischen Geräten synchronisiert
- Funktioniert auch ohne aktiviertes Markdown
- Hybrid-Optimierung: Server-Timestamp (Primary) + E-Tag (Secondary) Checks
- E-Tag wird nach Upload gecached um Re-Download zu vermeiden
### Performance Improvements
- **⚡ JSON Sync Performance-Parität**
- JSON-Sync erreicht jetzt gleiche Performance wie Markdown (~2-3 Sekunden)
- Timestamp-basierte Skip-Logik für unveränderte Dateien (~500ms pro Datei gespart)
- E-Tag-Matching als Fallback für Dateien die seit letztem Sync modifiziert wurden
- **Beispiel:** 24 Dateien von 12-14s auf ~2.7s reduziert (keine Änderungen)
- **⏭️ Skip unveränderte Dateien** (Haupt-Performance-Fix!)
- JSON-Dateien: Überspringt alle Notizen, die seit letztem Sync nicht geändert wurden
- Markdown-Dateien: Überspringt unveränderte MD-Dateien basierend auf Server-Timestamp
- **Spart ~500ms pro Datei** bei Nextcloud (~20 Dateien = 10 Sekunden gespart!)
- Von 21 Sekunden Sync-Zeit auf 2-3 Sekunden reduziert
- **⚡ Session-Caching für WebDAV**
- Sardine-Client wird pro Sync-Session wiederverwendet (~600ms gespart)
- WiFi-IP-Adresse wird gecacht statt bei jeder Anfrage neu ermittelt (~300ms gespart)
- `/notes/` Ordner-Existenz wird nur einmal pro Sync geprüft (~500ms gespart)
- **Gesamt: ~1.4 Sekunden zusätzlich gespart**
- **📝 Content-basierte Markdown-Erkennung**
- Extern bearbeitete Markdown-Dateien werden auch erkannt wenn YAML-Timestamp nicht aktualisiert wurde
- Löst das Problem: Obsidian/Texteditor-Änderungen wurden nicht importiert
- Hybridansatz: Erst Timestamp-Check (schnell), dann Content-Vergleich (zuverlässig)
### Added
- **🔄 Sync-Status-Anzeige (UI)**
- Sichtbares Banner "Synchronisiere..." mit ProgressBar während Sync läuft
- Sync-Button und Pull-to-Refresh werden deaktiviert während Sync aktiv
- Verhindert versehentliche Doppel-Syncs durch visuelle Rückmeldung
- Auch in Einstellungen: "Jetzt synchronisieren" Button wird deaktiviert
### Fixed
- **🔧 Sync-Mutex verhindert doppelte Syncs**
- Keine doppelten Toast-Nachrichten mehr bei schnellem Pull-to-Refresh
- Concurrent Sync-Requests werden korrekt blockiert
- **🐛 Lint-Fehler behoben**
- `View.generateViewId()` statt hardcodierte IDs in RadioButtons
- `app:tint` statt `android:tint` für AppCompat-Kompatibilität
### Added
- **🔍 detekt Code-Analyse**
- Statische Code-Analyse mit detekt 1.23.4 integriert
- Pragmatische Konfiguration für Sync-intensive Codebasis
- 91 Issues identifiziert (als Baseline für v1.4.0)
- **🏗️ Debug Build mit separatem Package**
- Debug-APK kann parallel zur Release-Version installiert werden
- Package: `dev.dettmer.simplenotes.debug` (Debug) vs `dev.dettmer.simplenotes` (Release)
- App-Name zeigt "Simple Notes (Debug)" für einfache Unterscheidung
- **📊 Debug-Logging UI**
- Neuer "Debug Log" Button in Einstellungen → Erweitert
- Zeigt letzte Sync-Logs mit Zeitstempeln
- Export-Funktion für Fehlerberichte
### Technical
- `WebDavSyncService`: Hybrid-Optimierung für JSON-Downloads (Timestamp PRIMARY, E-Tag SECONDARY)
- `WebDavSyncService`: E-Tag refresh nach Upload statt Invalidierung (verhindert Re-Download)
- E-Tag Caching: `SharedPreferences` mit Key-Pattern `etag_json_{noteId}`
- Skip-Logik: `if (serverModified <= lastSync) skip` → ~1ms pro Datei
- Fallback E-Tag: `if (serverETag == cachedETag) skip` → für Dateien modifiziert nach lastSync
- PROPFIND nach PUT: Fetch E-Tag nach Upload für korrektes Caching
- `SyncStateManager`: Neuer Singleton mit `StateFlow<Boolean>` für Sync-Status
- `MainActivity`: Observer auf `SyncStateManager.isSyncing` für UI-Updates
- Layout: `sync_status_banner` mit `ProgressBar` + `TextView`
- `WebDavSyncService`: Skip-Logik für unveränderte JSON/MD Dateien basierend auf `lastSyncTimestamp`
- `WebDavSyncService`: Neue Session-Cache-Variablen (`sessionSardine`, `sessionWifiAddress`, `notesDirEnsured`)
- `getOrCreateSardine()`: Cached Sardine-Client mit automatischer Credentials-Konfiguration
- `getOrCacheWiFiAddress()`: WiFi-Adresse wird nur einmal pro Sync ermittelt
- `clearSessionCache()`: Aufräumen am Ende jeder Sync-Session
- `ensureNotesDirectoryExists()`: Cached Directory-Check
- Content-basierter Import: Vergleicht MD-Content mit lokaler Note wenn Timestamps gleich
- Build-Tooling: detekt aktiviert, ktlint vorbereitet (deaktiviert wegen Parser-Problemen)
- Debug BuildType: `applicationIdSuffix = ".debug"`, `versionNameSuffix = "-debug"`
---
## [1.3.0] - 2026-01-07
### Added
- **🚀 Multi-Device Sync** (Thanks to Thomas from Bielefeld for reporting!)
- Automatic download of new notes from other devices
- Deletion tracking prevents "zombie notes" (deleted notes don't come back)
- Smart cleanup: Re-created notes (newer timestamp) are downloaded
- Works with all devices: v1.2.0, v1.2.1, v1.2.2, and v1.3.0
- **🗑️ Server Deletion via Swipe Gesture**
- Swipe left on notes to delete from server (requires confirmation)
- Prevents duplicate notes on other devices
- Works with deletion tracking system
- Material Design confirmation dialog
- **⚡ E-Tag Performance Optimization**
- Smart server checking with E-Tag caching (~150ms vs 3000ms for "no changes")
- 20x faster when server has no updates
- E-Tag hybrid approach: E-Tag for JSON (fast), timestamp for Markdown (reliable)
- Battery-friendly with minimal server requests
- **📥 Markdown Auto-Sync Toggle**
- NEW: Unified Auto-Sync toggle in Settings (replaces separate Export/Auto-Import toggles)
- When enabled: Notes export to Markdown AND import changes automatically
- When disabled: Manual sync button appears for on-demand synchronization
- Performance: Auto-Sync OFF = 0ms overhead
- **🔘 Manual Markdown Sync Button**
- Manual sync button for performance-conscious users
- Shows import/export counts after completion
- Only visible when Auto-Sync is disabled
- On-demand synchronization (~150-200ms only when triggered)
- **⚙️ Server-Restore Modes**
- MERGE: Keep local notes + add server notes
- REPLACE: Delete all local + download from server
- OVERWRITE: Update duplicates, keep non-duplicates
- Restore modes now work correctly for WebDAV restore
### Technical
- New `DeletionTracker` model with JSON persistence
- `NotesStorage`: Added deletion tracking methods
- `WebDavSyncService.hasUnsyncedChanges()`: Intelligent server checks with E-Tag caching
- `WebDavSyncService.downloadRemoteNotes()`: Deletion-aware downloads
- `WebDavSyncService.restoreFromServer()`: Support for restore modes
- `WebDavSyncService.deleteNoteFromServer()`: Server deletion with YAML frontmatter scanning
- `WebDavSyncService.importMarkdownFiles()`: Automatic Markdown import during sync
- `WebDavSyncService.manualMarkdownSync()`: Manual sync with result counts
- `MainActivity.setupSwipeToDelete()`: Two-stage swipe deletion with confirmation
- E-Tag caching in SharedPreferences for performance
---
## [1.2.2] - 2026-01-06
### Fixed
- **Backward Compatibility for v1.2.0 Users (Critical)**
- App now reads BOTH old (Root) AND new (`/notes/`) folder structures
- Users upgrading from v1.2.0 no longer lose their existing notes
- Server-Restore now finds notes from v1.2.0 stored in Root folder
- Automatic deduplication prevents loading the same note twice
- Graceful error handling if Root folder is not accessible
### Technical
- `WebDavSyncService.downloadRemoteNotes()` - Dual-mode download (Root + /notes/)
- `WebDavSyncService.restoreFromServer()` - Now uses dual-mode download
- Migration happens naturally: new uploads go to `/notes/`, old notes stay readable
---
## [1.2.1] - 2026-01-05
### Fixed
- **Markdown Initial Export Bugfix**
- Existing notes are now exported as Markdown when Desktop Integration is activated
- Previously, only new notes created after activation were exported
- Progress dialog shows export status with current/total counter
- Error handling for network issues during export
- Individual note failures don't abort the entire export
- **Markdown Directory Structure Fix**
- Markdown files now correctly land in `/notes-md/` folder
- Smart URL detection supports both Root-URL and `/notes` URL structures
- Previously, MD files were incorrectly placed in the root directory
- Markdown import now finds files correctly
- **JSON URL Normalization**
- Simplified server configuration: enter only base URL (e.g., `http://server:8080/`)
- App automatically creates `/notes/` for JSON files and `/notes-md/` for Markdown
- Smart detection: both `http://server:8080/` and `http://server:8080/notes/` work correctly
- Backward compatible: existing setups with `/notes` in URL continue to work
- No migration required for existing users
### Changed
- **Markdown Directory Creation**
- `notes-md/` folder is now created on first sync (regardless of Desktop Integration setting)
- Prevents 404 errors when mounting WebDAV folder
- Better user experience: folder is visible before enabling the feature
- **Settings UI Improvements**
- Updated example URL from `/webdav` to `/notes` to match app behavior
- Example now shows: `http://192.168.0.188:8080/notes`
### Technical
- `WebDavSyncService.ensureMarkdownDirectoryExists()` - Creates MD folder early
- `WebDavSyncService.getMarkdownUrl()` - Smart URL detection for both structures
- `WebDavSyncService.exportAllNotesToMarkdown()` - Exports all local notes with progress callback
- `SettingsActivity.onMarkdownExportToggled()` - Triggers initial export with ProgressDialog
---
## [1.2.0] - 2026-01-04
### Added
- **Local Backup System**
- Export all notes as JSON file to any location (Downloads, SD card, cloud folder)
- Import backup with 3 modes: Merge, Replace, or Overwrite duplicates
- Automatic safety backup created before every restore
- Backup validation (format and version check)
- **Markdown Desktop Integration**
- Optional Markdown export parallel to JSON sync
- `.md` files synced to `notes-md/` folder on WebDAV
- YAML frontmatter with `id`, `created`, `updated`, `device`
- Manual import button to pull Markdown changes from server
- Last-Write-Wins conflict resolution via timestamps
- **Settings UI Extensions**
- New "Backup & Restore" section with local + server restore
- New "Desktop Integration" section with Markdown toggle
- Universal restore dialog with radio button mode selection
### Changed
- **Server Restore Behavior**: Users now choose restore mode (Merge/Replace/Overwrite) instead of hard-coded replace-all
### Technical
- `BackupManager.kt` - Complete backup/restore logic
- `Note.toMarkdown()` / `Note.fromMarkdown()` - Markdown conversion with YAML frontmatter
- `WebDavSyncService` - Extended for dual-format sync (JSON master + Markdown mirror)
- ISO8601 timestamp formatting for desktop compatibility
- Filename sanitization for safe Markdown file names
### Documentation
- Added WebDAV mount instructions (Windows, macOS, Linux)
- Created [SYNC_ARCHITECTURE.md](../project-docs/simple-notes-sync/architecture/SYNC_ARCHITECTURE.md) - Complete sync documentation
- Created [MARKDOWN_DESKTOP_REALITY_CHECK.md](../project-docs/simple-notes-sync/markdown-desktop-plan/MARKDOWN_DESKTOP_REALITY_CHECK.md) - Desktop integration analysis
---
## [1.1.2] - 2025-12-28
### Fixed
- **"Job was cancelled" Error**
- Fixed coroutine cancellation in sync worker
- Proper error handling for interrupted syncs
- **UI Improvements**
- Back arrow instead of X in note editor (better UX)
- Pull-to-refresh for manual sync trigger
- HTTP/HTTPS protocol selection with radio buttons
- Inline error display (no toast spam)
- **Performance & Battery**
- Sync only on actual changes (saves battery)
- Auto-save notifications removed
- 24-hour server offline warning instead of instant error
### Changed
- Settings grouped into "Auto-Sync" and "Sync Interval" sections
- HTTP only allowed for local networks (RFC 1918 IPs)
- Swipe-to-delete without UI flicker
---
## [1.1.1] - 2025-12-27
### Fixed
- **WiFi Connect Sync**
- No error notifications in foreign WiFi networks
- Server reachability check before sync (2s timeout)
- Silent abort when server offline
- Pre-check waits until network is ready
- No errors during network initialization
### Changed
- **Notifications**
- Old sync notifications cleared on app start
- Error notifications auto-dismiss after 30 seconds
### UI
- Sync icon only shown when sync is configured
- Swipe-to-delete without flicker
- Scroll to top after saving note
### Technical
- Server check with 2-second timeout before sync attempts
- Network readiness check in WiFi connect trigger
- Notification cleanup on MainActivity.onCreate()
---
## [1.1.0] - 2025-12-26
### Added
- **Configurable Sync Intervals**
- User choice: 15, 30, or 60 minutes
- Real-world battery impact displayed (15min: ~0.8%/day, 30min: ~0.4%/day, 60min: ~0.2%/day)
- Radio button selection in settings
- Doze Mode optimization (syncs batched in maintenance windows)
- **About Section**
- App version from BuildConfig
- Links to GitHub repository and developer profile
- MIT license information
- Material 3 card design
### Changed
- Settings UI redesigned with grouped sections
- Periodic sync updated dynamically when interval changes
- WorkManager uses selected interval for background sync
### Removed
- Debug/Logs section from settings (cleaner UI)
### Technical
- `PREF_SYNC_INTERVAL_MINUTES` preference key
- NetworkMonitor reads interval from SharedPreferences
- `ExistingPeriodicWorkPolicy.UPDATE` for live interval changes
---
## [1.0.0] - 2025-12-25
### Added
- Initial release
- WebDAV synchronization
- Note creation, editing, deletion
- 6 sync triggers:
- Periodic sync (configurable interval)
- App start sync
- WiFi connect sync
- Manual sync (menu button)
- Pull-to-refresh
- Settings "Sync Now" button
- Material 3 design
- Light/Dark theme support
- F-Droid compatible (100% FOSS)
---
[1.2.0]: https://github.com/inventory69/simple-notes-sync/releases/tag/v1.2.0
[1.1.2]: https://github.com/inventory69/simple-notes-sync/releases/tag/v1.1.2
[1.1.1]: https://github.com/inventory69/simple-notes-sync/releases/tag/v1.1.1
[1.1.0]: https://github.com/inventory69/simple-notes-sync/releases/tag/v1.1.0
[1.0.0]: https://github.com/inventory69/simple-notes-sync/releases/tag/v1.0.0
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