from flask import Blueprint, jsonify, request, g
from services.EventService import EventService
from middlewares.userMiddlewares import authenticate_user
from middlewares.eventMiddlewares import validate_event_post_request

eventRoutes = Blueprint('eventRoutes', __name__)

# Create new event
@eventRoutes.route('/', methods=['POST'])
@eventRoutes.route('', methods=['POST'])
@validate_event_post_request
@authenticate_user
def create_event():
    try: 
        data = request.json
        data['user_id'] = g.user_id
        new_event = EventService.create_event(data)
        if new_event:
            return jsonify(new_event.to_dict()), 201
        else:
            return jsonify({'error': 'Failed to create event'}), 400
    except Exception as e:
        return jsonify({'error': str(e)}), 500

@eventRoutes.route('/', methods=['GET'])
@eventRoutes.route('', methods=['GET'])
def get_events():
    try:
        location = request.args.get('location')
        sort_by = request.args.get('sort_by')
        user_events = EventService.get_upcoming_events(location, sort_by)
        return {"events": user_events, "count": len(user_events)}, 200
    except Exception as e:
        return {"error": str(e)}, 500
    
@eventRoutes.route('/<int:event_id>', methods=['GET'])
@authenticate_user
def get_event(event_id):
    try:
        return {"event": EventService.get_event_by_id(event_id, g.user_id)}, 200
    except Exception as e:
        return {"error": str(e)}, 500

@eventRoutes.route('/<int:event_id>', methods=['PUT'])
@validate_event_post_request
@authenticate_user
def update_event(event_id):
    try:
        data = request.json
        updated_event = EventService.update_event(event_id, data)
        if updated_event:
            return jsonify(updated_event.to_dict()), 200
        else:
            return jsonify({'error': 'Event not found'}), 404
    except Exception as e:
        return jsonify({'error': str(e)}), 500
    
@eventRoutes.route('/<int:event_id>', methods=['DELETE'])
@authenticate_user
def delete_event(event_id):
    try:
        deleted_event = EventService.delete_event(event_id)
        if deleted_event:
            return jsonify(deleted_event.to_dict()), 200
        else:
            return jsonify({'error': 'Event not found'}), 404
    except Exception as e:
        return jsonify({'error': str(e)}), 500
    

@eventRoutes.route('/<int:event_id>/attend', methods=['POST'])
@authenticate_user
def attend_event(event_id):
    response = EventService.attend_event(event_id)
    if 'error' in response:
        return jsonify({'error': response['error']}), 400

    return jsonify({'message': response['message']}), 200

@eventRoutes.route('/<int:event_id>/unattend', methods=['POST'])
@authenticate_user
def unattend_event(event_id):
    response = EventService.unattend_event(event_id)
    if 'error' in response:
        return jsonify({'error': response['error']}), 400
    
    return jsonify({'message': response['message']}), 200