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continuum-proxy/tests/fixtures/push_status_v2_h2c_printing.json
T
octoturge 9a314b2b9f Fix print.push_status parsing, and stop losing reports silently 
Pointed at a real H2C that was 20% into a job, `print_status()` returned
nothing at all. The printer was in fact pushing a full status object every
second; every one was arriving, failing to deserialize, and being dropped
invisibly by an `if let Ok(report) = ..` with no `else`.

That silence produced two confidently-wrong claims in our own comments,
both corrected here:

- `pushall`'s doc said whether v2 emits `push_status` unprompted was "an
  open question". It is not: v2 pushes a full 97-field object roughly once
  a second from the moment you subscribe, no trigger needed. There is no
  missing "other trigger" to hunt for.
- The "sequence gap" warning blamed the network for dropped v1 updates.
  Those updates were not dropped in transit - they failed to parse, so
  they never reached the counter, making the next one that did look like a
  skip. Confirmed: seq 57, 62, 64 and 69 all arrived. After the fix, zero
  gaps and zero parse failures across a 25s run against both printers.

Two concrete causes, both found with captured payloads:

- v1 trays carry `tray_temp`/`tray_time`; v2 trays carry
  `drying_temp`/`drying_time`. All four were required, so *every* v1 push
  carrying AMS data failed.
- A third tray shape existed that nothing modelled: an empty v2 slot sends
  `{"id": "2", "state": 0}`, which matched neither `EmptyTray` (it denies
  unknown fields, deliberately) nor `LoadedTray` (16 fields short).

A parse failure now reports itself, naming the printer, the sequence id and
the serde error. A report this process cannot parse is a defect in
`PrintReport`, and the only way to fix it is to be told which field.

`PrintReport` itself modelled 9 of 97 top-level fields, and none of them
were progress or temperature - it was built from a truncated example. It
now carries gcode_state, percent, layer counts, remaining time, nozzle/bed
temperatures, fan gears, wifi and HMS entries. `merge_from`'s two dozen
four-line blocks collapse to `newer.x.or(self.x.take())` one-liners: the
old shape made adding a field a three-place edit, and forgetting the merge
half produced a field that silently never survived a partial update.

Two scale traps documented where they bite: reported fan speeds are 0-15
gears, not percent and not the 0-255 PWM we send (`set_fan_speed(50)`
reads back as "7"); and v2 pins `sequence_id` to one value for minutes
while contents change, so it orders and identifies nothing there.

Two examples, and the distinction between them is the point. `live_reports`
is read-only and safe against a printer mid-job. `bambu_idle_checks`
writes, so it requires an explicit printer id and refuses to run unless
that printer reports `gcode_state: "IDLE"`.

Regression fixtures are verbatim captures off both printers, hardware
identifiers scrubbed - the only way to keep this from regressing without a
printer plugged in.
2026-10-03 10:12:05 +00:00

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{
"2D": {
"bs": {
"bi": [
{
"clock_in": false,
"est_time": 0,
"idx": 0,
"print_then": false,
"proc_list": [],
"step_type": 1,
"tool_info": {
"color": "",
"diameter": 0.4000000059604645,
"id": 8978432
},
"type": 137
}
],
"total_time": 0
},
"cond": 14,
"cur_stage": {
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"idx": 0,
"left_time": 0,
"process": 0,
"state": 0
},
"first_confirm": false,
"makeable": false,
"material": {
"cur_id_list": [],
"state": 0,
"tar_id": "",
"tar_name": ""
},
"pm": 0
},
"3D": {
"layer_num": 2,
"print_cali_option": 2,
"total_layer_num": 50
},
"ams": {
"ams": [
{
"dry_time": 0,
"humidity": "2",
"humidity_raw": "34",
"id": "0",
"info": "1003",
"temp": "30.6",
"tray": [
{
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"bed_temp_type": "0",
"cali_idx": -1,
"cols": [
"2850E0FF"
],
"ctype": 0,
"drying_temp": "0",
"drying_time": "0",
"id": "0",
"nozzle_temp_max": "280",
"nozzle_temp_min": "240",
"remain": 0,
"state": 11,
"tag_uid": "<scrubbed>",
"total_len": 330000,
"tray_color": "2850E0FF",
"tray_diameter": "1.75",
"tray_id_name": "",
"tray_info_idx": "GFN99",
"tray_sub_brands": "",
"tray_type": "PA",
"tray_uuid": "<scrubbed>",
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},
{
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"tray_diameter": "1.75",
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"tray_info_idx": "GFN08",
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"tray": [
{
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"cali_idx": -1,
"cols": [
"FFFFFF00"
],
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"tray_id_name": "",
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"tray_sub_brands": "",
"tray_type": "PETG",
"tray_uuid": "<scrubbed>",
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"xcam_info": "000000000000000000000000"
},
{
"id": "2",
"state": 10
},
{
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],
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"tray_diameter": "1.75",
"tray_id_name": "",
"tray_info_idx": "GFL95",
"tray_sub_brands": "",
"tray_type": "PLA",
"tray_uuid": "<scrubbed>",
"tray_weight": "0",
"xcam_info": "000000000000000000000000"
}
]
},
{
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"id": "128",
"info": "2104",
"temp": "41.5",
"tray": [
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}
]
}
],
"ams_exist_bits": "13",
"ams_exist_bits_raw": "13",
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"insert_flag": false,
"power_on_flag": false,
"tray_exist_bits": "bf",
"tray_is_bbl_bits": "bf",
"tray_now": "0",
"tray_pre": "0",
"tray_read_done_bits": "bf",
"tray_reading_bits": "0",
"tray_tar": "0",
"unbind_ams_stat": 0,
"version": 169763
},
"ams_rfid_status": 0,
"ams_status": 768,
"ap_err": 0,
"aux": "2001004",
"aux_part_fan": false,
"batch_id": 0,
"bed_target_temper": 35.0,
"bed_temper": 35.0,
"big_fan1_speed": "14",
"big_fan2_speed": "4",
"cali_version": 0,
"canvas_id": 0,
"care": [
{
"id": "ls",
"info": "1A00"
},
{
"id": "ld",
"info": "641864"
},
{
"id": "lr",
"info": "1A00"
},
{
"id": "hr",
"info": "5E185E"
}
],
"cfg": "685DDAB8",
"command": "push_status",
"cooling_fan_speed": "14",
"design_id": "",
"device": {
"airduct": {
"modeCur": 0,
"modeFunc": 0,
"modeList": [
{
"ctrl": [
16,
32,
48
],
"modeId": 0,
"off": [
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]
},
{
"ctrl": [
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],
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"off": [
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48
]
},
{
"ctrl": [
48
],
"modeId": 2,
"off": []
}
],
"modeVisable": 7,
"parts": [
{
"func": 0,
"id": 16,
"range": 6553600,
"state": 100,
"tar_state": 100
},
{
"func": 1,
"id": 32,
"range": 6553600,
"state": 100,
"tar_state": 100
},
{
"func": 2,
"id": 48,
"range": 6553600,
"state": 30,
"tar_state": 30
},
{
"func": 4,
"id": 96,
"range": 6553600,
"state": 0,
"tar_state": 0
}
],
"subFunc": 0,
"subMode": 0,
"subVisable": 7,
"version": 1
},
"bed": {
"info": {
"temp": 2293795
},
"state": 2
},
"bed_temp": 2293795,
"cam": {
"laser": {
"cond": 252,
"state": 0
},
"timelapse_path": ""
},
"ctc": {
"info": {
"temp": 27
},
"state": 0
},
"ext_tool": {
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"low_prec": true,
"mount": 0,
"mount_3d": 1,
"th_temp": 0,
"type": "F000"
},
"extruder": {
"info": [
{
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"id": 0,
"info": 1611,
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{
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}
],
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},
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"fire_ext": {
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},
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"pos": 3,
"stat": 0,
"step": [
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]
},
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},
"nozzle": {
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"info": [
{
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"diameter": 0.4,
"fila_id": "GFB99",
"id": 18,
"sn": "20D06A5A1512964",
"stat": 0,
"tm": 350,
"type": "HS01",
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},
{
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},
{
"color_m": "F95D73FF",
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},
{
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},
{
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"fila_id": "GFG99",
"id": 21,
"sn": "20D06A592727617",
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},
{
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"sn": "20D06A5A1215962",
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"type": "HS01",
"wear": 0.0
},
{
"color_m": "161616FF",
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"fila_id": "GFC99",
"id": 20,
"sn": "20D06A592725573",
"stat": 0,
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"type": "HS01",
"wear": 0.0
}
],
"src_id": 19,
"state": 0,
"tar_id": 19
},
"plate": {
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"cali2d_id": "",
"cur_id": "P0102",
"mat": 1,
"tar_id": ""
},
"type": 1
},
"err": "0",
"fail_reason": "0",
"fan_gear": 5046271,
"file": "/data/Metadata/plate_1.gcode",
"force_upgrade": false,
"fun": "10023FF18FFF9CB7",
"fun2": "E",
"gcode_file": "/data/Metadata/plate_1.gcode",
"gcode_file_prepare_percent": "100",
"gcode_state": "RUNNING",
"heatbreak_fan_speed": "14",
"hms": [
{
"attr": 83952640,
"code": 196610
},
{
"attr": 83952640,
"code": 196612
},
{
"attr": 83887616,
"code": 131156
}
],
"home_flag": -1066967745,
"hw_switch_state": 1,
"info": {
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},
"ipcam": {
"agora_service": "disable",
"brtc_service": "enable",
"bs_state": 0,
"cap_pic_enable": "invalid",
"ipcam_dev": "1",
"ipcam_record": "enable",
"laser_preview_res": 6,
"mode_bits": 2,
"resolution": "1080p",
"rtsp_url": "rtsps://192.168.0.21:322/streaming/live/1",
"timelapse": "enable",
"tl_store_hpd_type": 2,
"tl_store_path_type": 2,
"tutk_server": "disable"
},
"job": {
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"idx": 0,
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},
"stage": [
{
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"color": [
"",
""
],
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0.4000000059604645
],
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"HS01"
],
"type": 2
}
]
},
"job_attr": 18,
"job_id": "0",
"lan_task_id": "0",
"layer_num": 2,
"lights_report": [
{
"mode": "on",
"node": "chamber_light"
},
{
"mode": "flashing",
"node": "work_light"
},
{
"mode": "on",
"node": "chamber_light2"
}
],
"mapping": [
65280
],
"mc_action": 0,
"mc_err": 0,
"mc_percent": 13,
"mc_print_error_code": "0",
"mc_print_stage": "2",
"mc_print_sub_stage": 0,
"mc_remaining_time": 102,
"mc_stage": 2,
"model_id": "",
"msg": 0,
"net": {
"conf": 16,
"info": [
{
"ip": 352364736,
"mask": 16777215
},
{
"ip": 0,
"mask": 0
}
]
},
"nozzle_diameter": "0.4",
"nozzle_target_temper": 230.0,
"nozzle_temper": 230.0,
"nozzle_type": "HS01-0.4",
"online": {
"ahb": true,
"ext": true,
"version": 16
},
"percent": 13,
"plate_cnt": 1,
"plate_id": 1,
"plate_idx": 1,
"prepare_per": 100,
"print_error": 0,
"print_gcode_action": 0,
"print_real_action": 0,
"print_type": "local",
"profile_id": "0",
"project_id": "0",
"queue": 0,
"queue_est": 0,
"queue_number": 0,
"queue_sts": 0,
"queue_total": 0,
"remain_time": 102,
"s_obj": [],
"sdcard": true,
"sequence_id": "2021",
"spd_lvl": 2,
"spd_mag": 100,
"stat": "16782180F0",
"state": 4,
"stg": [
64,
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13,
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4,
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39,
8,
14,
1,
3
],
"stg_cur": 0,
"subtask_id": "0",
"subtask_name": "świeczka-24.stl",
"task_id": "5101",
"total_layer_num": 50,
"upgrade_state": {
"ahb_new_version_number": "",
"ams_new_version_number": "",
"consistency_request": false,
"dis_state": 0,
"err_code": 0,
"ext_new_version_number": "",
"force_upgrade": false,
"idx": 16,
"idx2": 1393374092,
"lower_limit": "00.00.00.00",
"message": "",
"module": "",
"new_version_state": 0,
"ota_new_version_number": "",
"progress": "0",
"sequence_id": 0,
"sn": "31B8BP5A1800585",
"status": "IDLE",
"upgrade_fail_list": [],
"upgrade_type": "unknown"
},
"upload": {
"file_size": 0,
"finish_size": 0,
"message": "Good",
"oss_url": "",
"progress": 0,
"sequence_id": "0903",
"speed": 0,
"status": "idle",
"task_id": "",
"time_remaining": 0,
"trouble_id": ""
},
"ver": "20000",
"vir_slot": [
{
"bed_temp": "0",
"bed_temp_type": "0",
"cali_idx": -1,
"cols": [
"0ACC38FF"
],
"ctype": 0,
"drying_temp": "0",
"drying_time": "0",
"id": "254",
"nozzle_temp_max": "250",
"nozzle_temp_min": "200",
"remain": 0,
"tag_uid": "<scrubbed>",
"total_len": 330000,
"tray_color": "0ACC38FF",
"tray_diameter": "1.75",
"tray_id_name": "",
"tray_info_idx": "GFU98",
"tray_sub_brands": "",
"tray_type": "TPU-AMS",
"tray_uuid": "<scrubbed>",
"tray_weight": "0",
"xcam_info": "000000000000000000000000"
},
{
"bed_temp": "0",
"bed_temp_type": "0",
"cali_idx": -1,
"cols": [
"F95D73FF"
],
"ctype": 0,
"drying_temp": "0",
"drying_time": "0",
"id": "255",
"nozzle_temp_max": "240",
"nozzle_temp_min": "230",
"remain": 0,
"tag_uid": "<scrubbed>",
"total_len": 330000,
"tray_color": "F95D73FF",
"tray_diameter": "1.75",
"tray_id_name": "",
"tray_info_idx": "Pf3dbd0c",
"tray_sub_brands": "",
"tray_type": "TPU",
"tray_uuid": "<scrubbed>",
"tray_weight": "0",
"xcam_info": "000000000000000000000000"
}
],
"wifi_signal": "-66dBm",
"xcam": {
"allow_skip_parts": false,
"buildplate_marker_detector": true,
"cfg": 1797559,
"first_layer_inspector": true,
"halt_print_sensitivity": "medium",
"print_halt": true,
"printing_monitor": true,
"spaghetti_detector": true
},
"xcam_status": "0"
}
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