import json
import hashlib
from pathlib import Path

class Auth:
    def __init__(self, hive_home):
        self.hive_home = Path(hive_home)
        self.users_file = self.hive_home / "users" / "profiles.json"
        self.users = self.load_users()
    
    def load_users(self):
        if self.users_file.exists():
            return json.loads(self.users_file.read_text())
        return {
            "owner": {
                "id": "owner",
                "pass_hash": self.hash_password("Fehr2008"),
                "role": "owner",
                "voice_enrolled": False
            }
        }
    
    def save_users(self):
        self.users_file.write_text(json.dumps(self.users, indent=2))
    
    def hash_password(self, password):
        return hashlib.pbkdf2_hmac('sha256', password.encode(), b'salt', 100000).hex()
    
    def check_password(self, username, password):
        user = self.users.get(username)
        if not user:
            return False
        return user["pass_hash"] == self.hash_password(password)