const notificationService = require('../services/notification.service');
const responseHelper = require('../../../helpers/response.helper');

class NotificationController {
    static async handle(req, res) {
        const payload = req.body;

        try {
            const callbackToken = req.headers['x-callback-token'];
            if (callbackToken !== process.env.ROUTER_CALLBACK_TOKEN) {
                return responseHelper.error(res, "Unauthorized token router gateway", 401);
            }

            const isValid = notificationService.verifySignature(payload);
            if (!isValid) {
                return responseHelper.error(res, "Invalid Signature Key", 403);
            }

            await notificationService.processNotification(payload);

            return responseHelper.success(res, "Notification Handled");
        } catch (error) {
            console.error("Webhook Error:", error.message);
            return responseHelper.error(res, error.message);
        }
    }
}

module.exports = NotificationController;