from flask import Flask
from dotenv import load_dotenv
from flask_migrate import Migrate
from flask_sqlalchemy import SQLAlchemy
import os

# Cargar las variables de entorno desde .env

db = SQLAlchemy()
migrate = Migrate()  # Inicializar Migrate

def create_app():
    app = Flask(__name__)
    
    load_dotenv()

    app.config['SECRET_KEY'] = 'mi_secreto'

    app.config['SQLALCHEMY_DATABASE_URI'] = f"mysql+pymysql://{os.getenv('DB_USERNAME')}:{os.getenv('DB_PASSWORD')}@{os.getenv('DB_HOST')}:{os.getenv('DB_PORT')}/{os.getenv('DB_NAME')}"
    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
    db.init_app(app)
    migrate.init_app(app, db)  # Asocia migrate con la app y la base de datos

    from app.codes.user import user
    app.register_blueprint(user, url_prefix='/user')

    return app