Track and display who performs key actions in Bambuddy:
- Archives: who uploaded each archive file
- Library: who uploaded each file in File Manager
- Queue: who added each print job to the queue
- Printers: who started the current print (reprint tracking)
Backend changes:
- Add created_by_id column to print_archives, library_files, print_queue tables
- Add database migrations for new columns (auto-run on startup)
- Update archive, library, and queue routes to capture current user
- Add current-print-user endpoint for printer reprint tracking
- Track reprint user in PrinterManager in-memory state
- Fix file uploads not sending auth headers (FormData requires explicit headers)
Frontend changes:
- Display username on archive cards, library files, queue items
- Show "Started by" on printer cards during active prints
- Add auth headers to all 12 FormData upload functions
- Update TypeScript types for user tracking fields
Tests:
- Add unit tests for PrinterManager user tracking methods (7 tests)
- Add integration tests for current-print-user endpoint (3 tests)
- Add integration tests for library file user tracking (3 tests)
Works when authentication is enabled; gracefully hidden when disabled.
Closes#206
- Add H2D Pro option to printer model dropdowns (add/edit modals)
- Support both O1E and O2D internal codes for H2D Pro compatibility
- Add O2D to RTSP-capable and chamber temp supported models
- Add H2DPRO variant to firmware check mapping
- Add H2D Pro and X1E to bug report issue template
Closes#192
Some A1/A1 Mini firmware versions incorrectly report stg_cur=0 (which
maps to "Printing") even when the printer is idle. This is a known
firmware bug also observed in the Home Assistant Bambu Lab integration.
- Add A1_MODELS constant listing affected model variants
- Add has_stg_cur_idle_bug() helper to identify affected models
- Update get_derived_status_name() to check gcode_state before stg_cur
for A1 models: if IDLE + stg_cur=0, return None to show "Idle"
- Fix only applies when all conditions match (A1 model + IDLE + stg_cur=0)
- Non-A1 printers and A1 printers without the bug are unaffected
Closes#168
Add support for external network cameras (MJPEG, RTSP, HTTP snapshot)
that replace a printer's built-in camera when configured.
Features:
- Live streaming on printers page (replaces built-in camera)
- Finish photo capture from external camera on print complete
- Layer-based timelapse: captures frame on each layer change,
stitches to MP4 video on print completion
Backend changes:
- Add external_camera_url, external_camera_type, external_camera_enabled
fields to Printer model with database migration
- New external_camera.py service: MJPEG/RTSP/snapshot frame capture,
connection testing, MJPEG stream generation
- New layer_timelapse.py service: TimelapseSession management,
layer-by-layer frame capture, ffmpeg video stitching
- Add on_layer_change callback to MQTT client and printer manager
- Update camera routes with external camera streaming and tracking
- Update print lifecycle hooks for timelapse start/stitch/cancel
- Add external camera fields to backup/restore
- Rate limiting for external camera streams (prevents browser freeze)
Frontend changes:
- Add external camera configuration UI in Settings > Camera
- Per-printer enable toggle, URL input, type selector, test button
- Toast notification on save
Closes#143
Root Cause: P2S (and other newer models) may report their model as internal codes (e.g., "N7" for P2S) rather than display names in MQTT/SSDP responses. The camera code
only checked for display names like "P2S", causing it to incorrectly use the chamber image protocol (for A1/P1) instead of RTSP.
Internal Code Mapping:
BL-P001 → X1/X1C (RTSP)
C13 → X1E (RTSP)
O1D → H2D (RTSP)
O1C → H2C (RTSP)
O1S → H2S (RTSP)
O1E → H2D Pro (RTSP)
N7 → P2S (RTSP)
C11 → P1P (Chamber)
C12 → P1S (Chamber)
N2S → A1 (Chamber)
N1 → A1 Mini (Chamber)
Closes#127
New feature: Publish BamBuddy events to external MQTT brokers for integration
with Home Assistant, Node-RED, and other automation platforms.
Backend changes:
- New MQTTRelayService (backend/app/services/mqtt_relay.py) with paho-mqtt
- MQTT settings added to AppSettings schema (enabled, broker, port, auth, TLS)
- New /settings/mqtt/status endpoint for connection status
- Event hooks in main.py, print_queue.py, print_scheduler.py, maintenance.py, smart_plugs.py
- PrinterInfo class and get_printer() method added to PrinterManager
- MQTT reconfiguration added to backup/restore flow
- Printer status throttled to 1 update/sec to avoid flooding
Frontend changes:
- New "Network" tab in Settings (between Filament and API Keys)
- FTP Retry settings moved from General to Network tab
- MQTT configuration card with broker, port, TLS toggle, auth fields
- Port auto-populates when TLS toggled (1883 ↔ 8883)
- Connection status indicator (green/red dot) in tab and card header
- Real-time status polling when on Network tab
Published topics:
- bambuddy/status - Online/offline
- bambuddy/printers/{serial}/status - Printer state (throttled)
- bambuddy/printers/{serial}/print/* - Print lifecycle
- bambuddy/printers/{serial}/ams/changed - AMS changes
- bambuddy/queue/* - Queue events
- bambuddy/maintenance/* - Maintenance alerts
- bambuddy/smart_plugs/* - Plug state/energy
- bambuddy/archive/* - Archive events
Tests:
- Added MQTT settings and status endpoint tests
Closes#78
Fix Applied:
1. Added supports_chamber_temp() helper function that returns True only for X1/X1C/X1E, P2S, and H2 series
2. Modified printer_state_to_dict() to filter out chamber, chamber_target, chamber_heating from temperatures for unsupported models
3. Added model caching in PrinterManager so we can look up the model without a database query
4. Updated all callers (main.py, websocket.py) to pass the model
The chamber temperature widget will now simply not appear for P1S/P1P/A1/A1Mini printers since the temperatures.chamber field won't be sent to the frontend.
Features:
- Add print options UI to reprint modal (bed leveling, flow calibration,
vibration calibration, first layer inspection, timelapse)
- Collapsible "Print Options" section with toggle switches
- Default values: bed leveling=on, vibration_cali=on, others=off
Fixes:
- Fix AMS mapping format to match Bambu Studio exactly
- Use slot_id from 3MF to position tray IDs correctly
- Fill unused slots with -1 placeholder
- Add ams_mapping2 with detailed {ams_id, slot_id} pairs
- Fix print command format for proper printer recognition
- Add auto_bed_leveling, cfg, extrude_cali_flag, nozzle_offset_cali
- Use American spelling "bed_leveling" (not British "bed_levelling")
- Match sequence_id format from official apps
- Prevent duplicate tray assignment in filament matching
This resolves the "stuck at filament change" issue on multi-color reprints
affecting X1C and other multi-AMS printer configurations.
- Controls section: New section before Filaments with fan status and printer controls
- Part cooling fan (Fan icon, cyan)
- Auxiliary fan (Wind icon, blue)
- Chamber fan (AirVent icon, green)
- Stop/Pause/Resume buttons moved from Temperature section
- Real-time updates: Fan speeds now broadcast via WebSocket
- Backend: Parse MQTT fan data (cooling_fan_speed, big_fan1_speed, big_fan2_speed)
- Convert 0-15 scale to 0-100%
- Always-visible badges with dynamic coloring based on fan state
- Removed horizontal dividers before Controls and Filaments sections
- Skip Objects Modal:
- Object ID markers overlaid on preview image (grid layout)
- Large prominent ID badges to match printer display
- Info banner explaining to match IDs with printer screen
- Layer warning when skip unavailable (layer <= 1)
- Red badge on button showing skipped count
- Preview image now shown when paused (not just running)
- Close with ESC key or click outside modal
- Full light/dark theme support
- Backend:
- Extract object positions from 3MF (include_positions=True)
- API returns x/y coordinates for objects (when available)
- Parse s_obj from printer MQTT for skipped state persistence
- Cover URL available in PAUSE/PAUSED states
- Tests:
- Added test for objects with position data
1. "Unknown Status (255)" bug
File: backend/app/services/printer_manager.py:291-293
Problem: A1/P1 printers send stg_cur=255 when idle (unlike X1 which uses -1). The code treated 255 as a valid stage number and returned "Unknown stage (255)".
Fix: Changed the condition from if state.stg_cur >= 0: to if 0 <= state.stg_cur < 255: so that 255 is now treated as "no calibration stage" (same as -1).
2. AMS humidity/temp displaced on mobile
File: frontend/src/pages/PrintersPage.tsx:1164-1212
Problem: The AMS row used a rigid horizontal flex layout that didn't adapt to narrow mobile screens, causing humidity/temperature indicators to be displaced.
Fix:
- Added flex-wrap to allow wrapping on very narrow screens
- Added ml-auto to humidity/temp section to keep it right-aligned
- Added max-w-[60px] sm:max-w-none to truncate long filament names on mobile
- Changed gap from fixed gap-3 to responsive gap-2 sm:gap-3
Tests Added
4 new unit tests for get_derived_status_name:
- test_stg_cur_255_returns_none - Verifies A1/P1 idle state
- test_stg_cur_negative_one_returns_none_when_idle - Verifies X1 idle state
- test_valid_stage_returns_name - Verifies valid stages work
- test_stg_cur_zero_returns_printing - Verifies printing state
All 382 tests pass.
- Add getStatusDisplay() helper in frontend to format status nicely
- Add get_derived_status_name() in backend to compute status from:
- stg_cur calibration stages (bed leveling, vibration comp, etc.)
- Temperature data when stg_cur unavailable (heating heatbed/nozzle)
- Include stg_cur and stg_cur_name in WebSocket broadcasts
- Update broadcast status key to detect heating phase changes
Printer cards now show: "Heating heatbed", "Heating nozzle", "Preparing",
"Auto bed leveling", "Cleaning nozzle tip", and 60+ other stage names
instead of just "Printing" or "Idle".
Problem: xcam data was parsed BEFORE _was_running was set to True, so timelapse detection failed when both arrived in the same message.
Fix: Added timelapse detection at two critical points:
# Lines 1375-1381: When entering RUNNING state
if self.state.state == "RUNNING" and current_file:
if not self._was_running:
if self.state.timelapse:
self._timelapse_during_print = True
logger.info(f"[{self.serial_number}] Timelapse detected when entering RUNNING state")
# Lines 1391-1399: When print start detected
if self.state.timelapse:
self._timelapse_during_print = True
logger.info(f"[{self.serial_number}] Timelapse detected at print start")
2. Callback Error Handling (main.py + printer_manager.py)
Problem: The on_print_complete callback was hanging silently - no logs after "Found archive".
Fixes:
- Added try/except wrapper around "Update archive status" section (line 749-767)
- Added [CALLBACK] log messages at start and end of callback
- Added exception handler to _schedule_async in printer_manager.py to log any exceptions from async callbacks
3. New Integration Tests (test_bambu_mqtt.py)
Added TestRealisticMessageFlow class with 5 new tests that simulate real MQTT message sequences:
1. test_timelapse_detected_at_print_start_in_same_message - The critical race condition test
2. test_timelapse_not_detected_when_disabled
3. test_timelapse_detected_when_enabled_after_print_start
4. test_print_complete_includes_timelapse_flag_full_flow - Full lifecycle test
5. test_print_failed_includes_timelapse_flag
These tests process messages through _process_message() with proper {"print": {...}} wrapping, matching real MQTT flow.
Files Modified:
- backend/app/services/bambu_mqtt.py - Timelapse race condition fix
- backend/app/main.py - Error handling + logging for on_print_complete
- backend/app/services/printer_manager.py - Exception capture in _schedule_async
- backend/tests/unit/services/test_bambu_mqtt.py - New integration tests
Next Steps
You should restart the application to apply these changes. The next print will show:
- [CALLBACK] on_print_complete started for printer X
- [ARCHIVE] Updating archive X status...
- [ENERGY], [PHOTO], [AUTO-OFF] logs (if those features trigger)
- [CALLBACK] on_print_complete finished for printer X, archive X
- Add dynamic humidity indicator with Bambu Lab style water drop icons
- Empty drop for good (dry), half-filled for fair, full for bad (wet)
- Configurable thresholds via Settings page
- Add dynamic temperature indicator with thermometer icons
- Empty for good, half-filled for fair, full for hot
- Colors match humidity: green/gold/red
- Add AMS Display Thresholds settings card
- Humidity thresholds (good/fair) configurable
- Temperature thresholds (good/fair) configurable
- Persisted in backend settings
- Fix AMS card stability issues
- Add ams_extruder_map to WebSocket broadcasts
- Cache AMS data and extruder map to prevent bouncing
- Fix L/R nozzle indicator for dual-nozzle H2 printers
- Fix status summary bar counting
- Don't count printers with unknown status as offline
- Theme-aware L/R nozzle badges (light/dark theme support)
maziggy