#!/usr/bin/env python3
"""
OpenEventDatabase Backend

This is the main entry point for the OpenEventDatabase backend.
It initializes the Falcon application and sets up the routes.
"""

import sys
import falcon

# Import utility modules
from oedb.utils.logging import logger
from oedb.utils.db import check_db_connection

# Import middleware
from oedb.middleware.headers import HeaderMiddleware
from oedb.middleware.cache import CacheMiddleware
from oedb.middleware.rate_limit import RateLimitMiddleware

# Import resources
from oedb.resources.event import event
from oedb.resources.stats import StatsResource
from oedb.resources.search import EventSearch
from oedb.resources.root import root
from oedb.resources.demo import demo
from oedb.resources.event_form import event_form

def create_app():
    """
    Create and configure the Falcon application.
    
    Returns:
        falcon.App: The configured Falcon application.
    """
    # Create the Falcon application with middleware
    logger.info("Initializing Falcon application")
    app = falcon.App(middleware=[
        HeaderMiddleware(),
        CacheMiddleware(),
        RateLimitMiddleware()
    ])
    
    # Check database connection before continuing
    if not check_db_connection():
        logger.error("Cannot start server - PostgreSQL database is not responding")
        sys.exit(1)
    
    # Create resource instances
    stats = StatsResource()
    event_search = EventSearch()
    
    # Add routes
    logger.info("Setting up API routes")
    app.add_route('/', root)             # Handle root requests
    app.add_route('/event/search', event_search)  # Handle event search requests
    app.add_route('/event/{id}', event)  # Handle single event requests
    app.add_route('/event', event)       # Handle event collection requests
    app.add_route('/stats', stats)       # Handle stats requests
    app.add_route('/demo', demo)         # Handle demo page requests
    app.add_route('/demo/add', event_form)  # Handle event submission form
    app.add_route('/demo/by-what', demo, suffix='by_what')  # Handle events by type page
    app.add_route('/demo/map-by-what', demo, suffix='map_by_what')  # Handle map by event type page
    app.add_route('/demo/edit/{id}', demo, suffix='edit')  # Handle event editing page
    app.add_route('/demo/traffic', demo, suffix='traffic')  # Handle traffic jam reporting page
    app.add_route('/demo/view-events', demo, suffix='view_events')  # Handle view saved events page
    
    logger.success("Application initialized successfully")
    return app

# Create the WSGI application
app = create_app()

if __name__ == '__main__':
    # This block is executed when the script is run directly
    import waitress
    
    logger.info(" -------------- Starting server on http://127.0.0.1:8080 ------------")
    waitress.serve(app, host='127.0.0.1', port=8080)