Files
Bambu-Run/bambu_run/management/commands/bambu_collector.py
RNL dd57a963ac Add H2C dual-nozzle and multi-AMS-type support
Schema (migration 0004):
- PrinterMetrics: nozzle_temp_left, nozzle_target_temp_left,
  nozzle_diameter_left, nozzle_type_left (all nullable)
- Filament: ams_unit_id (nullable int), ams_type (AMS/AMS 2 Pro/AMS HT)
- AMS_INFO_TO_TYPE map and AMS_TYPE_CHOICES on models

Parser (mqtt_client.py):
- Decode bit-packed temps from device.extruder.info[] for left/right nozzle
- Emit per-nozzle fields in get_snapshot(); legacy keys mirror right side
- AMS unit type from info code per unit dict

Collector (bambu_collector.py):
- Write left-nozzle fields to PrinterMetrics
- Set ams_unit_id + ams_type on Filament records
- Fix: poll MQTTClient.connected before pushall (not BambuPrinter._connected)
- Add 5s post-pushall wait in --once mode so response arrives before collect

Views: API and dashboard include left-nozzle series; is_dual_nozzle flag
Templates: dual-nozzle cards + chart; AMS-type badge + filter on filament list
Charts: left nozzle temp chart with conditional render
Forms: fix tray_id max=3 → max=15; add ams_unit_id, ams_type fields
2026-05-07 14:51:31 +10:00

739 lines
30 KiB
Python

"""
Management command to continuously collect 3D printer MQTT data.
Collects printer metrics from Bambu Lab 3D printers.
Usage:
python manage.py bambu_collector
python manage.py bambu_collector --interval 60
python manage.py bambu_collector --once
python manage.py bambu_collector --verbose
"""
import logging
import os
import ssl
import time
from decimal import Decimal
from typing import Optional
from django.core.management.base import BaseCommand, CommandError
from django.db import transaction
from django.utils import timezone
from bambu_run.conf import app_settings
from bambu_run.models import Printer, PrinterMetrics
logger = logging.getLogger("bambu_run.collector")
class Command(BaseCommand):
"""
MQTT Poll -> PrinterMetrics -> FilamentSnapshot -> Auto-Match -> Update Filament
"""
help = "Continuously collect 3D printer MQTT data from Bambu Lab printer"
def add_arguments(self, parser):
parser.add_argument(
"--interval", type=int, default=30,
help="Data collection interval in seconds (default: 30)",
)
parser.add_argument(
"--once", action="store_true",
help="Run once and exit (useful for testing/cron)",
)
parser.add_argument(
"--verbose", action="store_true", help="Enable verbose logging"
)
parser.add_argument(
"--disable-ssl-verify", action="store_true",
help="Disable SSL certificate verification (use with caution)",
)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.printer_client = None
self.printer_device = None
self.verbose = False
self.disable_ssl_verify = False
self.error_count = 0
self.success_count = 0
self.mqtt_connect_errors = 0
self.start_time = None
self.current_print_job = None
self.last_gcode_state = None
self.last_subtask_name = None
self.trays_used = set()
def handle(self, *args, **options):
self.verbose = options["verbose"]
self.disable_ssl_verify = options["disable_ssl_verify"]
interval = options["interval"]
run_once = options["once"]
if self.disable_ssl_verify:
logger.warning("SSL verification disabled - use with caution!")
ssl._create_default_https_context = ssl._create_unverified_context
os.environ["PYTHONHTTPSVERIFY"] = "0"
os.environ["CURL_CA_BUNDLE"] = ""
os.environ["REQUESTS_CA_BUNDLE"] = ""
try:
import paho.mqtt.client as mqtt_client
original_tls_set = mqtt_client.Client.tls_set
def patched_tls_set(
self, ca_certs=None, certfile=None, keyfile=None,
cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLS, ciphers=None,
):
return original_tls_set(
self, ca_certs, certfile, keyfile, ssl.CERT_NONE, tls_version, ciphers,
)
mqtt_client.Client.tls_set = patched_tls_set
logger.debug("Successfully patched paho-mqtt SSL verification")
except ImportError:
logger.debug("paho-mqtt not yet imported, will rely on SSL context")
except Exception as e:
logger.debug(f"Could not patch paho-mqtt: {e}")
self._configure_logging()
try:
self._initialize_printer()
except Exception as e:
raise CommandError(f"Initialization failed: {e}")
self.start_time = timezone.now()
logger.info(f"Bambu Run data collector started for printer: {self.printer_device.name}")
logger.info(f"Collection interval: {interval} seconds")
logger.info(f"Mode: {'Single run' if run_once else 'Continuous'}")
try:
if run_once:
import time as _time
_time.sleep(5)
self._collect_printer_data()
logger.info("Single collection completed successfully")
else:
self._run_continuous_loop(interval)
except KeyboardInterrupt:
self._print_statistics()
logger.info("Bambu Run data collector stopped by user")
except Exception as e:
logger.exception(f"Fatal error in main loop: {e}")
raise CommandError(f"Runner failed: {e}")
def _request_full_status_when_ready(self, timeout: float = 20.0) -> None:
"""Send pushall once the MQTT broker connection is confirmed.
BambuPrinter._connected is set True immediately after connect(blocking=False),
before the broker handshake. Poll MQTTClient.connected (set in _on_connect)
instead, so publish() won't raise "Not connected to broker".
"""
import time as _time
deadline = _time.time() + timeout
while _time.time() < deadline:
mqtt_client = getattr(self.printer_client, "_mqtt", None)
if mqtt_client is not None and getattr(mqtt_client, "connected", False):
self.printer_client._mqtt.request_full_status()
logger.info("Sent MQTT pushall request")
return
_time.sleep(0.5)
logger.warning("MQTT broker connection not confirmed within %.1fs; skipping pushall", timeout)
def _configure_logging(self):
log_level = logging.DEBUG if self.verbose else logging.INFO
logger.setLevel(log_level)
if not logger.handlers:
handler = logging.StreamHandler()
handler.setLevel(log_level)
formatter = logging.Formatter(
"%(asctime)s [%(levelname)s] %(message)s", datefmt="%Y-%m-%d %H:%M:%S"
)
handler.setFormatter(formatter)
logger.addHandler(handler)
def _initialize_printer(self):
from bambu_run.mqtt_client import BambuPrinter
bambu_username = os.environ.get("BAMBU_USERNAME")
bambu_password = os.environ.get("BAMBU_PASSWORD")
bambu_token = os.environ.get("BAMBU_TOKEN")
bambu_device_id = os.environ.get("BAMBU_DEVICE_ID")
if not bambu_token and not all([bambu_username, bambu_password]):
raise CommandError(
"Either BAMBU_TOKEN or both BAMBU_USERNAME and BAMBU_PASSWORD "
"environment variables must be set"
)
logger.info("Connecting to Bambu Lab printer...")
try:
if bambu_token:
logger.info("Using saved BAMBU_TOKEN for authentication")
self.printer_client = BambuPrinter(
token=bambu_token, device_id=bambu_device_id
)
else:
logger.info("Authenticating with username/password")
self.printer_client = BambuPrinter(
username=bambu_username,
password=bambu_password,
device_id=bambu_device_id,
)
logger.info("Initiating MQTT connection...")
self.printer_client.connect(blocking=False)
logger.info("MQTT connection initiated (non-blocking)")
# Request full status so AMS + dual-nozzle data arrive on startup.
try:
self._request_full_status_when_ready()
except Exception as e:
logger.warning("pushall request skipped (non-fatal): %s", e)
except Exception as e:
if "CERTIFICATE_VERIFY_FAILED" in str(e) or "SSL" in str(e):
error_msg = (
f"SSL certificate verification failed: {e}\n\n"
"Solutions:\n"
"1. Run with --disable-ssl-verify flag\n"
"2. Install Python SSL certificates\n"
"3. pip install --upgrade certifi\n"
)
raise CommandError(error_msg)
raise CommandError(f"Failed to initialize printer client: {e}")
self.printer_device = self._ensure_printer_device_exists()
logger.info(f"Initialized for printer device: {self.printer_device}")
def _ensure_printer_device_exists(self) -> Printer:
try:
snapshot = self.printer_client.get_snapshot()
if snapshot:
device, created = Printer.objects.update_or_create(
model="Bambu Lab",
defaults={
"name": "Bambu Lab Printer",
"manufacturer": "Bambu Lab",
"is_active": True,
},
)
action = "Created" if created else "Updated"
logger.info(f"{action} printer device record: {device}")
return device
else:
logger.warning("Snapshot returned None - MQTT not connected yet")
device = Printer.objects.filter(is_active=True).first()
if device:
logger.info(f"Using existing device record: {device}")
return device
else:
device = Printer.objects.create(
name="Bambu Lab Printer",
model="Bambu Lab",
manufacturer="Bambu Lab",
is_active=True,
)
logger.info(f"Created placeholder device: {device}")
return device
except Exception as e:
logger.error(f"Error during device initialization: {e}")
try:
device = Printer.objects.filter(is_active=True).first()
if device:
logger.warning(f"Using existing device record from DB: {device}")
return device
else:
raise CommandError(
"No printer device found in database and initialization failed."
)
except Printer.DoesNotExist:
raise CommandError("Failed to create or retrieve printer device.")
def _run_continuous_loop(self, interval: int):
iteration = 0
while True:
iteration += 1
loop_start = time.time()
if self.verbose:
logger.debug(f"=== Iteration {iteration} ===")
self._collect_printer_data()
elapsed = time.time() - loop_start
sleep_time = max(0, interval - elapsed)
if self.verbose:
logger.debug(f"Collection took {elapsed:.2f}s, sleeping for {sleep_time:.2f}s")
if iteration % 100 == 0:
self._print_statistics()
time.sleep(sleep_time)
def _convert_mqtt_color(self, mqtt_color):
if not mqtt_color:
return None
color_hex = mqtt_color[:6] if len(mqtt_color) >= 6 else mqtt_color
return f"#{color_hex.upper()}"
def _match_filament_to_inventory(self, tray_data):
from bambu_run.models import Filament
tray_id = tray_data.get('tray_id')
tray_uuid = tray_data.get('tray_uuid')
tag_uid = tray_data.get('tag_uid')
tag_id = tray_data.get('tag_id')
type_val = tray_data.get('type')
sub_type = tray_data.get('sub_type')
color = tray_data.get('color')
if tray_uuid:
filament = Filament.objects.filter(tray_uuid=tray_uuid).first()
if filament:
if self.verbose:
logger.debug(f"Matched filament via tray_uuid: {tray_uuid[:16]}...")
return filament, 'tray_uuid'
if tag_uid:
filament = Filament.objects.filter(tag_uid=tag_uid).first()
if filament:
if self.verbose:
logger.debug(f"Matched filament via tag_uid: {tag_uid}")
return filament, 'tag_uid'
if tag_id:
filament = Filament.objects.filter(tag_id=tag_id).first()
if filament:
if self.verbose:
logger.debug(f"Matched filament via tag_id: {tag_id}")
return filament, 'tag_id'
if type_val and color:
query_filters = {'type': type_val, 'color': color}
if sub_type:
query_filters['sub_type'] = sub_type
filament = Filament.objects.filter(
**query_filters, is_loaded_in_ams=False
).order_by('remaining_percent', 'last_used').first()
if not filament:
filament = Filament.objects.filter(
**query_filters
).order_by('remaining_percent', 'last_used').first()
if filament:
if self.verbose:
logger.debug(f"Matched filament via type+sub_type+color: {filament}")
return filament, 'type_sub_type_color'
if self.verbose:
logger.info(f"No match found for tray {tray_id}. Auto-creating new filament...")
filament = self._auto_create_filament(tray_data)
return filament, 'auto_created'
def _auto_create_filament(self, tray_data):
from bambu_run.models import Filament, FilamentType
from bambu_run.utils import strip_color_padding, match_filament_color, is_mqtt_color_transparent
tray_uuid = tray_data.get('tray_uuid')
tag_uid = tray_data.get('tag_uid')
type_val = tray_data.get('type', 'Unknown')
sub_type = tray_data.get('sub_type', '')
mqtt_color = tray_data.get('color')
remain_percent = tray_data.get('remain_percent', 100)
diameter = tray_data.get('tray_diameter', 1.75)
initial_weight = tray_data.get('tray_weight', 1000)
default_brand = app_settings.AUTO_CREATE_BRAND
transparent = is_mqtt_color_transparent(mqtt_color)
color_code = strip_color_padding(mqtt_color)
color_hex = f"#{color_code}" if color_code else None
filament_color = match_filament_color(
filament_type=type_val,
filament_sub_type=sub_type,
color_code=color_code,
brand=default_brand
)
if filament_color:
color_name = filament_color.color_name
transparent = transparent or filament_color.is_transparent
if self.verbose:
logger.info(f"Matched color from database: {color_name} (#{color_code})")
else:
color_name = color_hex or mqtt_color
if self.verbose:
logger.warning(
f"No color match in database for {type_val} {sub_type} #{color_code}. "
f"Using hex code as color name."
)
filament_type_obj, ft_created = FilamentType.objects.get_or_create(
type=type_val,
sub_type=sub_type or None,
brand=default_brand,
)
if ft_created and self.verbose:
logger.info(f"Auto-created FilamentType: {filament_type_obj}")
filament = Filament.objects.create(
filament_type=filament_type_obj,
tray_uuid=tray_uuid,
tag_uid=tag_uid,
type=type_val,
sub_type=sub_type,
brand=default_brand,
color=color_name,
color_hex=color_hex,
is_transparent=transparent,
diameter=diameter,
initial_weight_grams=initial_weight,
remaining_percent=remain_percent,
created_by='Auto Detection',
is_loaded_in_ams=True,
current_tray_id=tray_data.get('tray_id'),
ams_unit_id=tray_data.get('ams_unit_id'),
ams_type=tray_data.get('ams_type', '') or '',
last_loaded_date=timezone.now(),
)
filament.update_remaining_weight()
filament.save()
logger.info(
f"Auto-created filament: {filament.brand} {filament.type} "
f"{filament.sub_type} - {filament.color} (SN: {tray_uuid[:16] if tray_uuid else 'N/A'}...)"
)
return filament
def _update_filament_status(self, filament, tray_id, remain_percent, tray_data=None):
from bambu_run.models import Filament
tray_data = tray_data or {}
ams_unit_id = tray_data.get('ams_unit_id')
ams_type_label = tray_data.get('ams_type', '') or ''
if filament.remaining_percent != remain_percent:
filament.remaining_percent = remain_percent
filament.update_remaining_weight()
filament.last_used = timezone.now()
if self.verbose:
logger.debug(f"Updated filament {filament}: {remain_percent}%")
location_changed = (
not filament.is_loaded_in_ams
or filament.current_tray_id != tray_id
or (ams_unit_id is not None and filament.ams_unit_id != ams_unit_id)
)
if location_changed:
# Unload anything previously occupying THIS exact (unit, tray) slot.
unload_qs = Filament.objects.filter(
is_loaded_in_ams=True, current_tray_id=tray_id
).exclude(id=filament.id)
if ams_unit_id is not None:
unload_qs = unload_qs.filter(ams_unit_id=ams_unit_id)
previous_filament = unload_qs.first()
if previous_filament:
previous_filament.is_loaded_in_ams = False
previous_filament.current_tray_id = None
previous_filament.save()
logger.info(
f"Auto-unloaded {previous_filament} from Tray {tray_id} "
f"(unit {ams_unit_id}; replaced by {filament.brand} {filament.type} - {filament.color})"
)
filament.is_loaded_in_ams = True
filament.current_tray_id = tray_id
if ams_unit_id is not None:
filament.ams_unit_id = ams_unit_id
if ams_type_label:
filament.ams_type = ams_type_label
filament.last_loaded_date = timezone.now()
if self.verbose:
logger.debug(f"Updated filament location: unit={ams_unit_id} tray={tray_id}")
elif ams_type_label and filament.ams_type != ams_type_label:
# Same slot but ams_type was previously unknown — fill it in.
filament.ams_type = ams_type_label
filament.save()
def _create_filament_snapshots(self, printer_metric, filaments_data, snapshot):
from bambu_run.models import FilamentSnapshot
ams_units = {
u.get('unit_id'): u for u in snapshot.get('ams_units', [])
}
for tray_data in filaments_data:
tray_id = tray_data.get('tray_id')
if tray_id is None:
continue
filament, match_method = self._match_filament_to_inventory(tray_data)
if filament:
remain_percent = tray_data.get('remain_percent')
if remain_percent is not None:
self._update_filament_status(filament, tray_id, remain_percent, tray_data)
# Locate the AMS unit this tray belongs to. Use the unit_id supplied
# by the snapshot directly (matches MQTT ams[i].id, including 128 for AMS HT)
# — the legacy `tray_id // 4` math breaks for AMS HT.
unit_id_int = tray_data.get('ams_unit_id')
unit_data = ams_units.get(str(unit_id_int)) if unit_id_int is not None else {}
FilamentSnapshot.objects.create(
printer_metric=printer_metric,
filament=filament,
tray_id=tray_id,
slot_name=tray_data.get('slot'),
type=tray_data.get('type'),
sub_type=tray_data.get('sub_type'),
color=tray_data.get('color'),
remain_percent=tray_data.get('remain_percent'),
k_value=tray_data.get('k'),
temp=self._to_decimal(unit_data.get('temp')),
humidity=unit_data.get('humidity'),
tag_uid=tray_data.get('tag_uid'),
tray_uuid=tray_data.get('tray_uuid'),
state=tray_data.get('state'),
auto_matched=bool(filament),
match_method=match_method
)
def _track_print_job(self, metric, snapshot):
from bambu_run.models import PrintJob, FilamentUsage
gcode_state = snapshot.get('gcode_state')
subtask_name = snapshot.get('subtask_name')
if self._is_print_starting(gcode_state, subtask_name):
if self.current_print_job:
self._finalize_print_job(metric, snapshot)
raw_task_id = snapshot.get('task_id')
self.current_print_job = PrintJob.objects.create(
device=self.printer_device,
project_name=subtask_name,
gcode_file=snapshot.get('gcode_file'),
start_time=metric.timestamp,
start_metric=metric,
total_layers=snapshot.get('total_layer_num'),
completion_percent=snapshot.get('print_percent', 0),
cloud_task_id_raw=int(raw_task_id) if raw_task_id else None,
)
self.trays_used = set()
logger.info(f"Print job started: {subtask_name}")
if self.current_print_job:
tray_now = snapshot.get('tray_now', '')
if tray_now not in (None, '', '255'):
try:
tray_id = int(tray_now)
if 0 <= tray_id <= 15:
self.trays_used.add(tray_id)
except (ValueError, TypeError):
pass
if self._is_print_ending(gcode_state) and self.current_print_job:
self._finalize_print_job(metric, snapshot)
self.last_gcode_state = gcode_state
self.last_subtask_name = subtask_name
def _is_print_starting(self, gcode_state, subtask_name):
is_printing = gcode_state not in ['FINISH', 'IDLE', 'FAILED', None, '']
has_new_job = subtask_name and subtask_name != self.last_subtask_name
return is_printing and has_new_job
def _is_print_ending(self, gcode_state):
ending_states = ['FINISH', 'FAILED']
return gcode_state in ending_states and self.last_gcode_state not in ending_states
def _finalize_print_job(self, metric, snapshot):
from bambu_run.models import FilamentUsage
self.current_print_job.end_time = metric.timestamp
self.current_print_job.end_metric = metric
self.current_print_job.final_status = snapshot.get('gcode_state')
self.current_print_job.completion_percent = snapshot.get('print_percent', 0)
self.current_print_job.calculate_duration()
self.current_print_job.save()
try:
from bambu_run.bambu_cloud import fetch_and_upsert_task
fetch_and_upsert_task(self.printer_client._client, self.current_print_job)
except Exception as e:
logger.warning(f"Cloud task sync skipped (non-fatal): {e}")
start_metric = self.current_print_job.start_metric
if not start_metric:
logger.warning(f"No start_metric for job {self.current_print_job.id}, skipping filament usage")
elif not self.trays_used:
logger.warning(f"No trays tracked for job {self.current_print_job.project_name}, skipping filament usage")
else:
for tray_id in self.trays_used:
start_snap = start_metric.filament_snapshots.filter(
tray_id=tray_id, filament__isnull=False
).first()
if not start_snap:
continue
end_snap = metric.filament_snapshots.filter(
filament=start_snap.filament, tray_id=tray_id
).first()
usage = FilamentUsage.objects.create(
print_job=self.current_print_job,
filament=start_snap.filament,
tray_id=tray_id,
starting_percent=start_snap.remain_percent or 100,
ending_percent=end_snap.remain_percent if end_snap else None,
is_primary=(len(self.trays_used) == 1),
)
usage.calculate_consumed()
usage.save()
if self.verbose:
logger.debug(
f"Filament usage for {start_snap.filament} (tray {tray_id}): "
f"{usage.starting_percent}% -> {usage.ending_percent}%, consumed {usage.consumed_percent}%"
)
logger.info(
f"Print job finished: {self.current_print_job.project_name} "
f"({self.current_print_job.final_status}) - Duration: {self.current_print_job.duration_minutes} min, "
f"Trays used: {sorted(self.trays_used) if self.trays_used else 'none tracked'}"
)
self.current_print_job = None
self.trays_used = set()
def _collect_printer_data(self):
try:
snapshot = self.printer_client.get_snapshot()
if snapshot is None:
self.mqtt_connect_errors += 1
if self.mqtt_connect_errors <= 5 or self.verbose:
logger.warning(
f"MQTT not connected yet or no data available "
f"(attempt {self.mqtt_connect_errors})"
)
return
with transaction.atomic():
metric = PrinterMetrics.objects.create(
device=self.printer_device,
timestamp=timezone.now(),
nozzle_temp=self._to_decimal(snapshot.get("nozzle_temp")),
nozzle_target_temp=self._to_decimal(snapshot.get("nozzle_target_temp")),
bed_temp=self._to_decimal(snapshot.get("bed_temp")),
bed_target_temp=self._to_decimal(snapshot.get("bed_target_temp")),
chamber_temp=self._to_decimal(snapshot.get("chamber_temp")),
nozzle_diameter=self._to_decimal(snapshot.get("nozzle_diameter")),
nozzle_type=snapshot.get("nozzle_type"),
nozzle_temp_left=self._to_decimal(snapshot.get("nozzle_temp_left")),
nozzle_target_temp_left=self._to_decimal(snapshot.get("nozzle_target_temp_left")),
nozzle_diameter_left=self._to_decimal(snapshot.get("nozzle_diameter_left")),
nozzle_type_left=snapshot.get("nozzle_type_left"),
gcode_state=snapshot.get("gcode_state"),
print_type=snapshot.get("print_type"),
print_percent=snapshot.get("print_percent"),
remaining_time_min=snapshot.get("remaining_time_min"),
layer_num=snapshot.get("layer_num"),
total_layer_num=snapshot.get("total_layer_num"),
print_line_number=snapshot.get("print_line_number"),
subtask_name=snapshot.get("subtask_name"),
gcode_file=snapshot.get("gcode_file"),
cooling_fan_speed=snapshot.get("cooling_fan_speed"),
heatbreak_fan_speed=snapshot.get("heatbreak_fan_speed"),
big_fan1_speed=snapshot.get("big_fan1_speed"),
big_fan2_speed=snapshot.get("big_fan2_speed"),
spd_lvl=snapshot.get("spd_lvl"),
spd_mag=snapshot.get("spd_mag"),
wifi_signal_dbm=snapshot.get("wifi_signal_dbm"),
print_error=snapshot.get("print_error", 0),
has_errors=snapshot.get("has_errors", False),
chamber_light=snapshot.get("chamber_light"),
ipcam_record=snapshot.get("ipcam_record"),
timelapse=snapshot.get("timelapse"),
stg_cur=snapshot.get("stg_cur"),
sdcard=snapshot.get("sdcard"),
gcode_file_prepare_percent=snapshot.get("gcode_file_prepare_percent"),
lifecycle=snapshot.get("lifecycle"),
hms=snapshot.get("hms", []),
ams_unit_count=snapshot.get("ams_unit_count"),
ams_status=snapshot.get("ams_status"),
ams_rfid_status=snapshot.get("ams_rfid_status"),
ams_humidity=snapshot.get("ams_humidity"),
ams_humidity_raw=snapshot.get("ams_humidity_raw"),
ams_temp=self._to_decimal(snapshot.get("ams_temp")),
ams_version=snapshot.get("ams_version"),
tray_is_bbl_bits=snapshot.get("tray_is_bbl_bits"),
tray_read_done_bits=snapshot.get("tray_read_done_bits"),
filaments=snapshot.get("filaments", []),
ams_units=snapshot.get("ams_units", []),
external_spool=snapshot.get("external_spool", {}),
lights_report=snapshot.get("lights_report", []),
)
filaments_data = snapshot.get('filaments', [])
if filaments_data:
self._create_filament_snapshots(metric, filaments_data, snapshot)
self._track_print_job(metric, snapshot)
self.success_count += 1
if self.verbose:
logger.debug(
f"Printer Metrics: Nozzle={snapshot.get('nozzle_temp')}C, "
f"Bed={snapshot.get('bed_temp')}C, "
f"Progress={snapshot.get('print_percent')}%, "
f"State={snapshot.get('gcode_state')}"
)
except Exception as e:
self.error_count += 1
logger.error(f"Error collecting printer data (total errors: {self.error_count}): {e}")
if self.verbose:
logger.exception("Detailed traceback:")
def _to_decimal(self, value) -> Optional[Decimal]:
if value is None:
return None
try:
return Decimal(str(value))
except (ValueError, TypeError):
return None
def _print_statistics(self):
if self.start_time:
runtime = timezone.now() - self.start_time
total_collections = self.success_count + self.error_count
success_rate = (
(self.success_count / total_collections * 100)
if total_collections > 0
else 0
)
logger.info("=== Statistics ===")
logger.info(f"Runtime: {runtime}")
logger.info(f"Successful collections: {self.success_count}")
logger.info(f"Failed collections: {self.error_count}")
logger.info(f"MQTT connection warnings: {self.mqtt_connect_errors}")
logger.info(f"Success rate: {success_rate:.1f}%")