# sensory_system/eyes.py

import os
from typing import List


class Eyes:
    """The ‘eyes’ read both live input and, on startup, your book corpus."""
    def __init__(self, books_path: str = None) -> None:
        self.corpus: List[str] = []
        if books_path:
            self.load_books(books_path)

    def load_books(self, folder_path: str) -> None:
        """Load all .txt files from folder_path into self.corpus."""
        for fn in os.listdir(folder_path):
            if fn.lower().endswith(".txt"):
                full = os.path.join(folder_path, fn)
                with open(full, encoding="utf-8") as f:
                    self.corpus.append(f.read())

    def preprocess(self, text: str) -> List[int]:
        """Turn an input string into a list of char codes (0–255)."""
        return [ord(c) % 256 for c in text]