"""
Flask application initialization
"""
from flask import Flask, send_from_directory
from flask_cors import CORS
from pathlib import Path
from app.config import Config
from app.routes.video_routes import video_bp
from app.utils.logger import setup_logger

def create_app(config_class=Config):
    """
    Create and configure Flask application
    
    Args:
        config_class: Configuration class
        
    Returns:
        Flask application instance
    """
    # Get project root directory
    project_root = Path(__file__).parent.parent
    static_folder = project_root / 'static'
    
    app = Flask(__name__, static_folder=str(static_folder), static_url_path='/static')
    app.config.from_object(config_class)
    
    # Enable CORS for frontend access
    CORS(app)
    
    # Setup logger
    setup_logger(app)
    
    # Register blueprints
    app.register_blueprint(video_bp, url_prefix='/api/videos')
    
    # Serve index.html at root
    @app.route('/')
    def index():
        """Serve index.html at root"""
        return send_from_directory(static_folder, 'index.html')
    
    return app