Files
beta_shape_pnpi/beta_spectrum/cli.py
T
unzhakov 330ebddaef refactor: refine CLI options and enhance debug logging
- Remove --mode, --transition-type, and --decay-index CLI flags
  (parameters now come from ENSDF data or custom JSON input)
- Clarify energy units in all CLI help text (MeV throughout, keV for detector params)
- Enhance logging verbosity:
  - -v (INFO): shows source, component initialization, workflow steps
  - -vv (DEBUG): shows detailed internals of all spectrum components
    (parameters, evaluation counts, input/output ranges)
- Improve CSV headers with element notation (e.g. Tc99 -> Ru99)
- Add CONVENTIONS.md documenting energy unit and logging conventions
- Update TODO.md with completion status
2026-05-05 09:08:08 +03:00

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"""
Command-line interface for beta-spectrum calculations.
Usage examples:
# From paceENSDF nuclear data
bs_pnpi --nuclide Tc99 --output spectrum.csv
# From custom JSON input
bs_pnpi --input custom_input.json --output spectrum.csv
# Full analysis with plotting
bs_pnpi --nuclide Co60 --plot analysis.png --output spectrum.csv
# With detector response
bs_pnpi --nuclide Tc99 --detector gaussian --output convolved.csv
# Verbose with log file
bs_pnpi --nuclide Tc99 --output spectrum.csv -vv --log-file /tmp/calc.log
# Dry run to inspect resolved configuration
bs_pnpi --nuclide Tc99 --dry-run
"""
from __future__ import annotations
import argparse
import sys
from typing import Any, Dict
from beta_spectrum.logging_utils import LoggingConfig, setup_logging
def _build_parser() -> argparse.ArgumentParser:
"""Build the argument parser."""
parser = argparse.ArgumentParser(
prog="bs_pnpi",
description="Beta spectrum calculation toolkit — "
"calculate high-precision beta decay energy spectra.",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=(
"Examples:\n"
" bs_pnpi --nuclide Tc99 --output spectrum.csv\n"
" bs_pnpi --input custom_input.json --output spectrum.csv\n"
" bs_pnpi --nuclide Tc99 --plot spectrum.png --output spectrum.csv\n"
" bs_pnpi --nuclide Tc99 --detector gaussian --output convolved.csv\n"
" bs_pnpi --nuclide Tc99 --output spectrum.csv -vv --log-file /tmp/calc.log\n"
" bs_pnpi --nuclide Tc99 --dry-run\n"
),
)
# Version
parser.add_argument(
"--version",
action="version",
version=f"%(prog)s {__import__('beta_spectrum').__version__}",
)
# Source selection (mutually exclusive)
source_group = parser.add_mutually_exclusive_group(required=True)
source_group.add_argument(
"--nuclide",
type=str,
help="Nuclide symbol for paceENSDF lookup (e.g. 'Tc99', 'Co60'). "
"Retrieves decay parameters from the ENSDF database via paceENSDF.",
)
source_group.add_argument(
"--input",
type=str,
metavar="FILE",
help="Path to a JSON input file with custom parameters.",
)
# Common parameters
parser.add_argument(
"--e-step",
type=float,
default=0.001,
help="Energy step size in MeV (default: 0.001). All energies are in MeV throughout the toolkit.",
)
# Output
parser.add_argument(
"--output",
type=str,
metavar="FILE",
help="Output CSV file path.",
)
# Plotting
parser.add_argument(
"--plot",
type=str,
metavar="FILE",
help="Save analysis plot to the specified path.",
)
# Detector response
detector_group = parser.add_argument_group("detector response")
detector_group.add_argument(
"--detector",
type=str,
default=None,
metavar="MODEL",
help="Enable detector response convolution. "
"Specify model: 'gaussian', 'gaussian_tail', 'tikhonov', 'tabulated'. "
"All detector parameters are in keV.",
)
detector_group.add_argument(
"--sigma",
type=float,
default=1.0,
metavar="KEV",
help="Resolution parameter sigma in keV (default: 1.0). Energy-dependent part: sigma(E) = sigma_a + sigma_b * sqrt(E).",
)
detector_group.add_argument(
"--tau",
type=float,
default=5.0,
metavar="KEV",
help="Low-energy tail decay constant tau in keV (default: 5.0). Only used with 'gaussian_tail' model.",
)
detector_group.add_argument(
"--tail-fraction",
type=float,
default=0.0,
metavar="FRAC",
help="Low-energy tail fraction (0.0–1.0, default: 0.0). Only used with 'gaussian_tail' model.",
)
# Logging and output control
log_group = parser.add_argument_group("logging and output")
log_group.add_argument(
"-v",
"--verbose",
action="count",
default=0,
help="Increase verbosity: -v=INFO (shows source, components, and workflow), "
"-vv=DEBUG (detailed internals of all spectrum components). Repeatable.",
)
log_group.add_argument(
"-q",
"--quiet",
action="store_true",
help="Suppress all terminal output (only errors shown).",
)
log_group.add_argument(
"--log-file",
type=str,
metavar="PATH",
help="Write log messages to the specified file path (absolute or relative). "
"Log file is always opened in append mode at DEBUG level.",
)
log_group.add_argument(
"--dry-run",
action="store_true",
help="Validate input and display resolved configuration without computing spectrum.",
)
return parser
def _parse_detector_args(args: argparse.Namespace) -> Dict[str, Any]:
"""Parse detector-related arguments into a config dict."""
if not args.detector:
return {}
return {
"use_detector_response": True,
"detector_model": args.detector,
"detector_sigma_a_keV": args.sigma,
"detector_tau_keV": args.tau,
"detector_tail_fraction": args.tail_fraction,
}
def _run(args: argparse.Namespace) -> None:
"""Execute the CLI command."""
import time
from beta_spectrum.logging_utils import get_logger
from beta_spectrum.nuclear_data import (
create_config_from_source,
json_to_config,
load_json_input,
)
from beta_spectrum.spectrum import BetaSpectrum, BetaSpectrumAnalyzer
# Determine logging level
if args.quiet:
log_level = "WARNING"
elif args.verbose >= 2:
log_level = "DEBUG"
elif args.verbose >= 1:
log_level = "INFO"
else:
log_level = "WARNING"
# Setup logging
log_config = LoggingConfig(
level=log_level,
log_file=args.log_file,
)
logger = setup_logging(log_config)
logger = get_logger("cli")
logger.info("bs_pnpi starting...")
logger.debug("Verbosity: %s | Log file: %s", log_level, args.log_file or "none")
# Build config
detector_kwargs = _parse_detector_args(args)
source_type: str
if args.nuclide:
logger.info("Source: paceENSDF nuclide=%s", args.nuclide)
config = create_config_from_source(
"paceENSDF",
nuclide=args.nuclide,
e_step_MeV=args.e_step,
use_detector_response=detector_kwargs.get("use_detector_response", False),
detector_model=detector_kwargs.get("detector_model", "gaussian"),
detector_sigma_a_keV=detector_kwargs.get("detector_sigma_a_keV", 1.0),
detector_tau_keV=detector_kwargs.get("detector_tau_keV", 5.0),
detector_tail_fraction=detector_kwargs.get("detector_tail_fraction", 0.0),
)
source_type = "paceENSDF"
elif args.input:
logger.info("Source: JSON file=%s", args.input)
data = load_json_input(args.input)
config = json_to_config(data)
source_type = "json"
else:
logger.error("No source specified (use --nuclide or --input)")
sys.exit(1)
# Dry run: display resolved config and exit
if args.dry_run:
_print_dry_run_output(config, source_type)
return
# Create and calculate spectrum
start_time = time.time()
logger.info(
"Creating BetaSpectrum for %s, endpoint=%.3f MeV",
_decay_notation(config.Z_parent, config.Z_daughter, config.A_number),
config.endpoint_MeV,
)
spectrum = BetaSpectrum.from_config(config, logger=logger)
_W, _kinetic_MeV = spectrum.get_energy_grid(config)
_ = spectrum(_W)
elapsed = time.time() - start_time
logger.info(
"Spectrum calculation done in %.3fs (%d points)", elapsed, len(_kinetic_MeV)
)
# Export to CSV
if args.output:
analyzer = BetaSpectrumAnalyzer(spectrum, config, logger=logger)
analyzer.export_to_csv(args.output, source_type=source_type)
logger.info("Spectrum exported to %s", args.output)
# Generate plot
if args.plot:
analyzer = BetaSpectrumAnalyzer(spectrum, config, logger=logger)
analyzer.plot_analysis(save_path=args.plot)
logger.info("Analysis plot saved to %s", args.plot)
logger.info("Done.")
def _print_dry_run_output(config, source_type: str) -> None:
"""Print resolved configuration for dry-run mode."""
from beta_spectrum.logging_utils import get_git_short_hash
enabled = []
if config.use_phase_space:
enabled.append("phase_space")
if config.use_fermi:
enabled.append("fermi")
if config.use_screening:
enabled.append("screening")
if config.use_finite_size:
enabled.append("finite_size")
if config.use_charge_dist:
enabled.append("charge_dist")
if config.use_radiative:
enabled.append("radiative")
if config.use_exchange:
enabled.append("exchange")
print("=== Dry Run: Resolved Configuration ===")
print(f"Package: beta-spectrum v{__import__('beta_spectrum').__version__}")
print(f"Git commit: {get_git_short_hash()}")
print(f"Source: {source_type}")
print(
f"Nuclide: {_decay_notation(config.Z_parent, config.Z_daughter, config.A_number)}"
)
print(f"Endpoint: {config.endpoint_MeV * 1000:.1f} keV")
print(f"Transition: {config.transition_type}")
print(f"e_step: {config.e_step_MeV:.4f} MeV")
print(f"Corrections: {', '.join(enabled) if enabled else 'none'}")
if config.use_detector_response:
print(
f"Detector: {config.detector_model} (sigma={config.detector_sigma_a_keV} keV, "
f"tail={config.detector_tail_fraction})"
)
else:
print("Detector: disabled")
print("========================================")
def _element_symbol(Z: int) -> str:
"""Get element symbol from atomic number."""
symbols = [
"",
"H",
"He",
"Li",
"Be",
"B",
"C",
"N",
"O",
"F",
"Ne",
"Na",
"Mg",
"Al",
"Si",
"P",
"S",
"Cl",
"Ar",
"K",
"Ca",
"Sc",
"Ti",
"V",
"Cr",
"Mn",
"Fe",
"Co",
"Ni",
"Cu",
"Zn",
"Ga",
"Ge",
"As",
"Se",
"Br",
"Kr",
"Rb",
"Sr",
"Y",
"Zr",
"Nb",
"Mo",
"Tc",
"Ru",
"Rh",
"Pd",
"Ag",
"Cd",
"In",
"Sn",
"Sb",
"Te",
"I",
"Xe",
"Cs",
"Ba",
"La",
"Ce",
"Pr",
"Nd",
"Pm",
"Sm",
"Eu",
"Gd",
"Tb",
"Dy",
"Ho",
"Er",
"Tm",
"Yb",
"Lu",
"Hf",
"Ta",
"W",
"Re",
"Os",
"Ir",
"Pt",
"Au",
"Hg",
"Tl",
"Pb",
"Bi",
"Po",
"At",
"Rn",
"Fr",
"Ra",
"Ac",
"Th",
"Pa",
"U",
"Np",
"Pu",
"Am",
"Cm",
"Bk",
"Cf",
"Es",
"Fm",
]
return symbols[Z] if Z < len(symbols) else f"Z{Z}"
def _nuclide_symbol(Z: int, A: int) -> str:
"""Get nuclide notation like 'Tc99' from atomic and mass numbers."""
return f"{_element_symbol(Z)}{A}"
def _decay_notation(Z_parent: int, Z_daughter: int, A: int) -> str:
"""Get decay notation like 'Tc99 -> Ru99' from atomic and mass numbers."""
return f"{_nuclide_symbol(Z_parent, A)} -> {_nuclide_symbol(Z_daughter, A)}"
def main() -> None:
"""Main entry point for the CLI."""
parser = _build_parser()
args = parser.parse_args()
try:
_run(args)
except KeyboardInterrupt:
print("\nInterrupted by user.", file=sys.stderr)
sys.exit(130)
except Exception as e:
print(f"Error: {e}", file=sys.stderr)
sys.exit(1)
if __name__ == "__main__":
main()