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radar_system/python_app/gui/controllers/app_window_snapshot_mixin.py
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2026-06-23 12:19:31 +03:00

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16 KiB
Python

"""Snapshot and ring-drain helper mixin for the main GUI window."""
from __future__ import annotations
from pathlib import Path
import time
from PyQt6.QtWidgets import QFileDialog
from python_app.gui.runtime.history import record_result_history, remove_last_aligned_histories
from python_app.storage.npz.paths import radar_config_filename_prefix
class AppWindowSnapshotMixin:
"""Saves runtime data snapshots and maintains ring-reader freshness."""
def _radar_config_name_prefix(self) -> str:
"""Filename prefix encoding the current radar setup (model, sweep span, points, power).
Prepended to every saved dataset name so the file records the configuration it was
captured with — identical for desktop and web saves, which share these handlers.
"""
radar = self._build_config().radar
return radar_config_filename_prefix(
radar.model,
radar.sweep.start_hz,
radar.sweep.stop_hz,
radar.sweep.points,
radar.sweep.power_dbm,
)
@staticmethod
def _snapshot_config_profile_path(snapshot_dir: Path) -> Path:
"""Return companion config-profile path inside a saved snapshot directory."""
return snapshot_dir / "config_profile.json"
@staticmethod
def _vna_json_config_profile_path(output_dir: Path) -> Path:
"""Return companion config-profile path for one VNA-history JSON export batch."""
return output_dir / "config_profile.json"
def _save_snapshot(self) -> None:
"""Save the last-N runtime measurements as a numpy snapshot (the "Save Dataset" button)."""
self._drain_runtime_rings_for_snapshot()
if not self._raw_history and not self._pre_history and not self._result_history:
self._show_error("No runtime data is available for save", details=self._runtime_history_details())
return
self._write_snapshot_dataset(
list(self._raw_history),
list(self._pre_history),
list(self._result_history),
int(self._save_count.value()),
)
def _snapshot_destination_dir(self) -> Path:
"""The directory a save/record would create now, from the current path/name fields.
Used to surface a name clash *before* doing work (manual save and the disk
recorder both create this directory and fail if it already exists).
"""
output_root = Path(self._save_path_input.text().strip()).expanduser()
return self._store.snapshot_directory(
output_root,
self._save_name_input.text().strip(),
name_prefix=self._radar_config_name_prefix(),
)
def _write_snapshot_dataset(
self,
raw_history: list,
preprocessed_history: list,
result_history: list,
last_n: int,
) -> None:
"""Save the given aligned histories as a numpy snapshot + adjacent config profile.
Shared by the manual "Save Dataset" button (which passes the runtime history)
and the on-the-fly disk recorder (which passes the freshly recorded buffers),
so both produce byte-identical dataset layouts and identical error reporting.
"""
try:
output_root = Path(self._save_path_input.text().strip()).expanduser()
snapshot_name = self._save_name_input.text().strip()
snapshot_dir, summary = self._store.save_runtime_snapshot_numpy(
output_root,
snapshot_name,
raw_history,
preprocessed_history,
result_history,
last_n,
name_prefix=self._radar_config_name_prefix(),
)
config_profile_path = self._snapshot_config_profile_path(snapshot_dir)
try:
self._write_gui_profile_to_path(config_profile_path, allow_overwrite=False)
except Exception as exc: # noqa: BLE001
self._show_error(
"Snapshot data was saved, but the adjacent config profile could not be written",
details=(
f"snapshot_dir={snapshot_dir}\n"
f"config_profile_path={config_profile_path}\n\n"
f"{self._exception_details(exc)}"
),
)
return
self._log(
f"Saved numpy snapshot: {snapshot_dir} "
f"(raw={summary.get('raw_count', 0)}, "
f"preprocessed={summary.get('preprocessed_count', 0)}, "
f"results={summary.get('result_count', 0)}, "
f"mode={summary.get('selection_mode', 'unknown')}, "
f"anchor={summary.get('anchor_stage', 'unknown')}, "
f"aligned_keys={summary.get('aligned_key_count', 0)}, "
f"raw_missing={summary.get('raw_missing_count', 0)}, "
f"pre_missing={summary.get('preprocessed_missing_count', 0)}, "
f"result_missing={summary.get('result_missing_count', 0)}, "
f"requested_last_n={last_n}, "
f"config_profile={config_profile_path})"
)
except Exception as exc: # noqa: BLE001
self._show_exception("Failed to save snapshot", exc)
def _save_vna_history_json(self) -> None:
"""Save one VNA-history JSON per available combo in runtime history."""
self._drain_runtime_rings_for_snapshot()
if not self._raw_history and not self._pre_history and not self._result_history:
self._show_error("No runtime data is available for save", details=self._runtime_history_details())
return
try:
last_n = int(self._save_count.value())
channel = "s21"
output_root = Path(self._save_path_input.text().strip()).expanduser()
output_name = self._save_name_input.text().strip()
output_paths, summary = self._store.save_runtime_vna_history_json_batch(
output_root,
output_name,
list(self._raw_history),
list(self._pre_history),
list(self._result_history),
last_n,
channel=channel,
primary_stage="preprocessed",
name_prefix=self._radar_config_name_prefix(),
)
output_stem = str(summary.get("output_stem", "")).strip()
if not output_stem:
raise RuntimeError("VNA history JSON export did not report output_stem for config companion save")
output_dir = Path(str(summary.get("output_dir", "")).strip() or output_paths[0].parent)
config_profile_path = self._vna_json_config_profile_path(output_dir)
try:
# Snapshot and VNA JSON exports intentionally share the same output directory stem.
# Refresh the companion GUI profile in place so a prior dataset save does not block JSON export.
self._write_gui_profile_to_path(config_profile_path, allow_overwrite=True)
except Exception as exc: # noqa: BLE001
exported_preview = "\n".join(str(path) for path in output_paths[:8])
if len(output_paths) > 8:
exported_preview += "\n..."
self._show_error(
"VNA history JSON files were saved, but the adjacent config profile could not be written",
details=(
f"output_root={output_root}\n"
f"output_dir={output_dir}\n"
f"config_profile_path={config_profile_path}\n"
f"saved_json_files={len(output_paths)}\n"
f"{exported_preview}\n\n"
f"{self._exception_details(exc)}"
),
)
return
combos = summary.get("combos", [])
combo_preview = ", ".join(f"in{input_pos}/out{output_pos}" for input_pos, output_pos in combos[:6])
if len(combos) > 6:
combo_preview += ", ..."
self._log(
f"Saved VNA history JSON batch: files={len(output_paths)} "
f"(combos={summary.get('combo_count', 0)}"
f"{', ' + combo_preview if combo_preview else ''}, "
f"preprocessed_records={summary.get('preprocessed_record_count', 0)}, "
f"raw={summary.get('raw_count', 0)}, "
f"preprocessed={summary.get('preprocessed_count', 0)}, "
f"results={summary.get('result_count', 0)}, "
f"mode={summary.get('selection_mode', 'unknown')}, "
f"anchor={summary.get('anchor_stage', 'unknown')}, "
f"channel={channel}, "
f"requested_last_n={last_n}, "
f"config_profile={config_profile_path})"
)
except Exception as exc: # noqa: BLE001
self._show_exception("Failed to save VNA history JSON", exc)
def _remove_last_runtime_history(self) -> None:
"""Remove the newest runtime measurement from all stages and processor replay state."""
self._apply_runtime_history_deletion(remove_last_only=True)
def _clear_all_runtime_history(self) -> None:
"""Clear all runtime histories, ring backlogs, and processor replay state."""
self._apply_runtime_history_deletion(remove_last_only=False)
def _apply_runtime_history_deletion(self, *, remove_last_only: bool) -> None:
"""Apply destructive runtime-history deletion across readers, caches, and processor replay state."""
if self._capture_session is not None:
self._show_error(
"Cannot modify runtime history during active capture sequence",
details=f"{self._capture_state_details()}\n\n{self._runtime_history_details()}",
)
return
resume_acquisition = self._supervisor.is_running()
dropped_raw = 0
dropped_pre = 0
dropped_results = 0
history_command = "remove_last" if remove_last_only else "clear_all"
action_label = "last runtime measurement removed" if remove_last_only else "runtime history fully cleared"
error_action = "remove last runtime measurement" if remove_last_only else "clear runtime history"
try:
if resume_acquisition:
self._stop_run()
dropped_raw = self._raw_reader.drop_all() if self._raw_reader is not None else 0
dropped_pre = self._pre_reader.drop_all() if self._pre_reader is not None else 0
dropped_results = self._result_reader.drop_all() if self._result_reader is not None else 0
if remove_last_only:
retained_raw, retained_pre, retained_result = remove_last_aligned_histories(
list(self._raw_history),
list(self._pre_history),
list(self._result_history),
)
else:
retained_raw = []
retained_pre = []
retained_result = []
self._replace_runtime_history(
retained_raw=retained_raw,
retained_pre=retained_pre,
retained_result=retained_result,
)
self._bscan_history_floor_collection_id = 0
self._clear_history_mode_caches()
self._write_live_processing_config(history_command=history_command, bump_history_seq=True)
if self._supervisor.is_processor_running():
self._drain_results_until_quiet(timeout_s=0.35, poll_s=0.01)
if self._result_reader is not None:
dropped_results += self._result_reader.drop_all()
self._update_history_indicator()
self._redraw_after_history_deletion()
self._log(
f"{action_label}: "
f"dropped raw={dropped_raw}, "
f"preprocessed={dropped_pre}, "
f"results={dropped_results}"
)
if resume_acquisition:
self._start_run()
except Exception as exc: # noqa: BLE001
self._show_exception(f"Failed to {error_action}", exc)
def _browse_save_path(self) -> None:
"""Open directory picker for snapshot output path."""
selected = QFileDialog.getExistingDirectory(
self,
"Select Snapshot Directory",
self._save_path_input.text().strip() or str(self._project_root),
)
if selected:
self._save_path_input.setText(selected)
def _drain_runtime_rings_for_snapshot(self) -> None:
"""Drain readers before snapshot to reduce partial-history races."""
if self._raw_reader is None and self._pre_reader is None and self._result_reader is None:
return
try:
start_raw_count = len(self._raw_history)
start_pre_count = len(self._pre_history)
start_result_count = len(self._result_history)
deadline = time.monotonic() + 1.2
while True:
progress = False
if self._raw_reader is not None:
for _ in range(self._max_pop_per_snapshot_drain):
collection = self._raw_reader.pop_raw_collection()
if collection is None:
break
self._raw_history.append(collection)
progress = True
if self._pre_reader is not None:
for _ in range(self._max_pop_per_snapshot_drain):
collection = self._pre_reader.pop_preprocessed_collection()
if collection is None:
break
self._pre_history.append(collection)
progress = True
if self._result_reader is not None:
for _ in range(self._max_pop_per_snapshot_drain):
collection = self._result_reader.pop_result_collection()
if collection is None:
break
record_result_history(self._result_history, collection)
progress = True
if progress:
continue
raw_count = len(self._raw_history)
pre_count = len(self._pre_history)
result_count = len(self._result_history)
missing_raw = self._raw_reader is not None and raw_count == start_raw_count
missing_pre = self._pre_reader is not None and pre_count == start_pre_count
missing_results = self._result_reader is not None and result_count == start_result_count
got_results = result_count > start_result_count
got_raw_or_pre = raw_count > start_raw_count or pre_count > start_pre_count
# Event-loop-friendly waits so the keepalive/watchdog timers and
# queued signals keep firing instead of freezing the headless daemon.
if got_results and (missing_raw or missing_pre) and time.monotonic() < deadline:
self._pump_events_during_drain(0.01)
continue
if got_raw_or_pre and missing_results and time.monotonic() < deadline:
self._pump_events_during_drain(0.01)
continue
if (
self._result_reader is not None
and max(raw_count, pre_count) > result_count
and time.monotonic() < deadline
):
self._pump_events_during_drain(0.01)
continue
break
except Exception as exc: # noqa: BLE001
self._log_exception("Snapshot drain warning", exc, level="WARN")
def _drop_pending_ring_payloads(self, *, include_results: bool = True) -> None:
"""Drop unread payloads from active readers."""
dropped_raw = self._raw_reader.drop_all() if self._raw_reader is not None else 0
dropped_pre = self._pre_reader.drop_all() if self._pre_reader is not None else 0
dropped_results = 0
if include_results and self._result_reader is not None:
dropped_results = self._result_reader.drop_all()
if dropped_raw or dropped_pre or dropped_results:
self._log(
"Single capture ring reset: "
f"dropped raw={dropped_raw}, "
f"preprocessed={dropped_pre}, "
f"results={dropped_results}"
)