# processors/cleaner.py

import os
from core.constants import TRASH_FILES
from core.result import StepResult


def clean_directory(work_dir: str) -> StepResult:
    """
    Elimina TRASH_FILES del directorio ya extraído.
    Sin I/O de archivo de cómic; trabaja sobre el directorio temporal.
    """
    removed = []
    for root, _, files in os.walk(work_dir):
        for f in files:
            if f.lower() in TRASH_FILES:
                full = os.path.join(root, f)
                os.remove(full)
                removed.append(os.path.relpath(full, work_dir))

    details = [f"Eliminado: {r}" for r in removed]
    return StepResult(
        step="clean",
        changed=bool(removed),
        details=details,
    )