<?php

namespace App\Controller;

use App\Ramcar\InsuranceApplicationStatus;
use App\Service\FCMSender;
use App\Entity\InsuranceApplication;
use Doctrine\ORM\EntityManagerInterface;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

use DateTime;

class InsuranceController extends Controller
{
    protected $em;
    protected $fcmclient;

    public function __construct(EntityManagerInterface $em, FCMSender $fcmclient)
    {
        $this->em = $em;
        $this->fcmclient = $fcmclient;
    }

    public function listen(Request $req)
    {
        $payload = $req->request->all();

        // DEBUG
        @file_put_contents(__DIR__ . '/../../var/log/insurance.log', print_r($payload, true) . "\r\n----------------------------------------\r\n\r\n", FILE_APPEND);
        error_log(print_r($payload, true));

        /*
        return $this->json([
            'success' => true,
        ]);
        */
        
        // END DEBUG

        // if no transaction code given, silently fail
        if (empty($payload['transaction_code'])) {
            error_log("Invalid insurance callback received: " . print_r($payload, true));

            return $this->json([
                'success' => true,
            ]);
        }

        // get event type and process accordingly
        $event_name = $payload['transaction_code'];

        switch ($event_name) {
            case 'GR002':
                return $this->handleAuthenticated($payload);
                break;
            case 'GR003':
                return $this->handleUpdateMade($payload);
                break;
            default:
                break;
        }

        return $this->json([
            'success' => true,
            'payload' => $payload,
        ]);
    }

    protected function handleAuthenticated($payload)
    {
        $obj = $this->getApplication($payload['id']);
        $now = new DateTime();
        $expiry = DateTime::createFromFormat("Y-m-d", $payload['expiry_date']);

        if (!empty($obj)) {
            // mark as completed
            $obj->setStatus(InsuranceApplicationStatus::COMPLETED);
            $obj->setDateComplete($now);
            $obj->setDateExpire($expiry);
            $obj->setCOC($payload['coc_url']);
            $this->em->flush();

            // send notification
            $this->fcmclient->sendEvent($obj->getCustomer(), "insurance_fcm_title_completed", "insurance_fcm_body_completed", [
                'cv_id' => $obj->getCustomerVehicle()->getID(),
            ]);
        }

        return $this->json([
            'success' => true,
        ]);
    }

    protected function handleUpdateMade($payload)
    {
        $obj = $this->getApplication($payload['id']);

        if (!empty($obj)) {
            $metadata = $obj->getMetadata();

            // initialize change list if not present
            if (empty($metadata['changes'])) {
                $metadata['changes'] = [];
            }

            $now = new DateTime;
            $metadata['changes'][$now->format('Y-m-d H:i:s')] = $payload['data'];

            // update metadata to record change
            $obj->setMetadata($metadata);
            $this->em->flush();

            // send notification
            $this->fcmclient->sendEvent($obj->getCustomer(), "insurance_fcm_title_updated", "insurance_fcm_body_updated", [
                'cv_id' => $obj->getCustomerVehicle()->getID(),
            ]);
        }

        return $this->json([
            'success' => true,
        ]);
    }

    protected function getApplication($transaction_id)
    {
        $result = $this->em->getRepository(InsuranceApplication::class)->findBy([
            'ext_transaction_id' => $transaction_id,
        ], [], 1);

        return !empty($result) ? $result[0] : false;
    }
}