import sqlite3
import os

def check_database(db_path, description):
    """Check if a database exists and show its users."""
    if os.path.exists(db_path):
        print(f"\n{description}: FOUND at {db_path}")
        try:
            conn = sqlite3.connect(db_path)
            cursor = conn.cursor()
            
            # Check if users table exists
            cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='users'")
            if cursor.fetchone():
                cursor.execute("SELECT id, username, password, role FROM users")
                users = cursor.fetchall()
                if users:
                    print("Users in this database:")
                    for user in users:
                        print(f"  ID: {user[0]}, Username: {user[1]}, Password: {user[2]}, Role: {user[3]}")
                else:
                    print("  Users table exists but is empty")
            else:
                print("  No users table found")
            conn.close()
        except Exception as e:
            print(f"  Error reading database: {e}")
    else:
        print(f"\n{description}: NOT FOUND at {db_path}")

if __name__ == "__main__":
    # Check different possible locations for users.db
    
    # 1. Root quality_recticel/instance/users.db
    root_instance = "/home/ske087/quality_recticel/instance/users.db"
    check_database(root_instance, "Root instance users.db")
    
    # 2. App instance folder
    app_instance = "/home/ske087/quality_recticel/py_app/instance/users.db"
    check_database(app_instance, "App instance users.db")
    
    # 3. Current working directory
    cwd_db = "/home/ske087/quality_recticel/py_app/users.db"
    check_database(cwd_db, "Working directory users.db")
    
    # 4. Flask app database (relative to py_app)
    flask_db = "/home/ske087/quality_recticel/py_app/app/users.db"
    check_database(flask_db, "Flask app users.db")
    
    print("\n" + "="*50)
    print("RECOMMENDATION:")
    print("The login should use the external MariaDB database.")
    print("Make sure you have created the superadmin user in MariaDB using create_roles_table.py")