import sys

from database import SessionLocal
from models import User
from services import AuthService
from os import getenv

def create_admin():
    email = getenv("ADMIN_EMAIL")
    password = getenv("ADMIN_PASSWORD")
    
    if not email or not password:
        raise RuntimeError("ADMIN_EMAIL y ADMIN_PASSWORD is required.")
    if len(password) < 8:
        raise RuntimeError("ADMIN_PASSWORD need almost 8 caracters.")
    
    db = SessionLocal()
    try:
        existing = db.query(User).filter(User.email == email).first()
        if existing:
            print(f"[INFO] Admin '{email}' already exists, skipping creation.")
            return
        admin = User(
            name='Admin',
            email=email,
            password=AuthService.hash_password(password),
            rol='admin',
            active=True
        )
        db.add(admin)
        db.commit()
        print(f"[INFO] Admin '{email}' created successfully.")
    except Exception as e:
        db.rollback()
        print(f"[ERROR] Failed to create admin: {e}", file=sys.stderr)
        raise
    finally:
        db.close()