from flask import Flask
from datetime import datetime

def create_app():
    app = Flask(__name__)
    app.config['SECRET_KEY'] = 'your_secret_key'
    
    # Set max upload size to 10GB for large database backups
    app.config['MAX_CONTENT_LENGTH'] = 10 * 1024 * 1024 * 1024  # 10GB
    
    # Application uses direct MariaDB connections via external_server.conf
    # No SQLAlchemy ORM needed - all database operations use raw SQL

    from app.routes import bp as main_bp, warehouse_bp
    from app.daily_mirror import daily_mirror_bp
    app.register_blueprint(main_bp, url_prefix='/')
    app.register_blueprint(warehouse_bp)
    app.register_blueprint(daily_mirror_bp)

    # Add 'now' function to Jinja2 globals
    app.jinja_env.globals['now'] = datetime.now
    
    # Initialize automatic backup scheduler
    from app.backup_scheduler import init_backup_scheduler
    init_backup_scheduler(app)
    print("✅ Automatic backup scheduler initialized")

    return app