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webfortilog/app/services/processing.py
2026-04-24 14:40:32 +02:00

79 lines
2.3 KiB
Python

from dataclasses import dataclass
from datetime import datetime
from app.constants import SEVERITY_RANKING
class ProcessingError(ValueError):
"""Raised when records cannot be processed according to the selected options."""
@dataclass(slots=True)
class ProcessingOptions:
policy_cs: str
policy_ci: str
severity_cs: str
severity_ci: str
sort_by: str
order: str
mode: str
def filter_records(
records: list[dict[str, str]], options: ProcessingOptions
) -> list[dict[str, str]]:
"""Apply user-selected filters to parsed records."""
filtered: list[dict[str, str]] = []
for record in records:
policy_value = record.get("policy", "")
severity_value = record.get("severity_level", "")
if options.policy_cs and options.policy_cs not in policy_value:
continue
if options.policy_ci and options.policy_ci.lower() not in policy_value.lower():
continue
if options.severity_cs and options.severity_cs not in severity_value:
continue
if options.severity_ci and options.severity_ci.lower() not in severity_value.lower():
continue
filtered.append(record)
return filtered
def sort_records(
records: list[dict[str, str]], options: ProcessingOptions
) -> list[dict[str, str]]:
"""Sort records by datetime or severity using the requested order."""
reverse = options.order == "desc"
if options.sort_by == "datetime":
key_func = _datetime_key
elif options.sort_by == "severity":
key_func = _severity_key
else:
raise ProcessingError("Unsupported sort field.")
return sorted(records, key=key_func, reverse=reverse)
def _datetime_key(record: dict[str, str]) -> tuple[int, datetime]:
date_value = record.get("v015xxxxdate", "").strip()
time_value = record.get("time", "").strip()
if not date_value or not time_value:
return (1, datetime.max)
try:
parsed = datetime.strptime(f"{date_value} {time_value}", "%Y-%m-%d %H:%M:%S")
except ValueError:
return (1, datetime.max)
return (0, parsed)
def _severity_key(record: dict[str, str]) -> tuple[int, str]:
raw_value = record.get("severity_level", "").strip().lower()
rank = SEVERITY_RANKING.get(raw_value, 0)
return (rank, raw_value)