import os
import json
from modules.auth_manager import hasher_mot_de_passe, verifier_mot_de_passe

USERS_FILE = "/DATA/AppData/MULTI-IA-AETHAS38/users.json"

def init_users():
    if not os.path.exists(USERS_FILE):
        default_users = {
            "xavier": {
                "email": "admin@mail.aethas38.duckdns.org",
                "password_hash": hasher_mot_de_passe("Xavier2026!"),
                "role": "Super Admin"
            },
            "celine": {
                "email": "cnoirard@ac-lyon.fr",
                "password_hash": hasher_mot_de_passe("Celine2026!"),
                "role": "Admin"
            }
        }
        os.makedirs(os.path.dirname(USERS_FILE), exist_ok=True)
        with open(USERS_FILE, 'w', encoding='utf-8') as f:
            json.dump(default_users, f, indent=4)

def load_users():
    init_users()
    with open(USERS_FILE, 'r', encoding='utf-8') as f:
        return json.load(f)

def save_users(users):
    with open(USERS_FILE, 'w', encoding='utf-8') as f:
        json.dump(users, f, indent=4)

def changer_nom_utilisateur(ancien_nom, nouveau_nom):
    users = load_users()
    if ancien_nom in users and nouveau_nom not in users:
        users[nouveau_nom] = users.pop(ancien_nom)
        save_users(users)
        return True
    return False

def mettre_a_jour_mot_de_passe(nom_utilisateur, nouveau_mdp):
    users = load_users()
    if nom_utilisateur in users:
        users[nom_utilisateur]["password_hash"] = hasher_mot_de_passe(nouveau_mdp)
        save_users(users)
        return True
    return False