#!/usr/bin/env python3
"""Reset password for fan controller"""
import json
import hashlib
import sys

USERS_FILE = "/home/devmatrix/projects/fan-controller-v2/data/users.json"

def hash_password(password):
    return hashlib.sha256(password.encode()).hexdigest()

if len(sys.argv) != 3:
    print("Usage: reset_password.py <username> <new_password>")
    sys.exit(1)

username = sys.argv[1]
password = sys.argv[2]

try:
    with open(USERS_FILE) as f:
        data = json.load(f)
    
    data["users"][username] = hash_password(password)
    
    with open(USERS_FILE, 'w') as f:
        json.dump(data, f)
    
    print(f"Password reset for user: {username}")
except Exception as e:
    print(f"Error: {e}")