import json
import os
import bot_state as state
from config import BACKUP_IDS_FILE, BLACKLISTED_WORDS_FILE, CONFIRMED_USERS_FILE


def load_backup_ids() -> None:
    if not os.path.exists(BACKUP_IDS_FILE):
        return
    try:
        with open(BACKUP_IDS_FILE) as f:
            data = json.load(f)
        state.backup_hashes = data if isinstance(data, dict) else {}
    except Exception:
        state.backup_hashes = {}


def save_backup_ids() -> None:
    try:
        with open(BACKUP_IDS_FILE, "w") as f:
            json.dump(state.backup_hashes, f)
    except Exception:
        pass


def load_confirmed_users() -> None:
    if not os.path.exists(CONFIRMED_USERS_FILE):
        return
    try:
        with open(CONFIRMED_USERS_FILE) as f:
            state.confirmed_users = set(json.load(f))
    except Exception:
        state.confirmed_users = set()


def save_confirmed_users() -> None:
    try:
        with open(CONFIRMED_USERS_FILE, "w") as f:
            json.dump(list(state.confirmed_users), f)
    except Exception:
        pass


def load_blacklist() -> None:
    if not os.path.exists(BLACKLISTED_WORDS_FILE):
        return
    try:
        with open(BLACKLISTED_WORDS_FILE, encoding="utf-8") as f:
            state.blacklisted_words = [ln.strip().lower() for ln in f if ln.strip()]
    except Exception:
        state.blacklisted_words = []