rules.py

from __future__ import annotations

from dataclasses import dataclass
from pathlib import Path
from typing import Any


@dataclass
class RuleMatchResult:
    rule: dict[str, Any]


class RuleEngine:
    def __init__(self, rules: list[dict[str, Any]]) -> None:
        self.rules = rules

    def match(self, file_path: Path) -> RuleMatchResult | None:
        name_lower = file_path.name.lower()
        suffix_lower = file_path.suffix.lower()

        for rule in self.rules:
            if not rule.get("enabled", True):
                continue

            extensions = [ext.lower() for ext in rule.get("extensions", [])]
            if extensions and suffix_lower not in extensions:
                continue

            contains = [item.lower() for item in rule.get("contains", [])]
            if contains and not any(fragment in name_lower for fragment in contains):
                continue

            return RuleMatchResult(rule=rule)
        return None