app.py

from flask import Flask, render_template, jsonify, request, send_file
import os
import json
from datetime import datetime

app = Flask(__name__)
app.secret_key = os.urandom(24)

# Ensure templates directory exists
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
TEMPLATES_DIR = os.path.join(BASE_DIR, 'templates')

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/health')
def health():
    return jsonify({"status": "healthy", "timestamp": datetime.now().isoformat()})

@app.errorhandler(404)
def page_not_found(e):
    # If API request, return JSON
    if request.path.startswith('/api/'):
        return jsonify(error="Resource not found"), 404
    # Otherwise return a simple error page or redirect to index
    # For a SPA-like app, often we just want to show a friendly message
    return render_template('index.html'), 404

@app.errorhandler(500)
def internal_server_error(e):
    return jsonify(error="Internal Server Error", message=str(e)), 500

@app.errorhandler(Exception)
def handle_exception(e):
    # Pass through HTTP errors
    if hasattr(e, "code"):
        return e
    # Handle non-HTTP errors
    return jsonify(error="Unexpected Error", message=str(e)), 500


if __name__ == '__main__':
    port = int(os.environ.get('PORT', 7860))
    app.run(host='0.0.0.0', port=port)