<?php

namespace App\Controller\CAPI;

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

use Doctrine\ORM\Query;
use Doctrine\ORM\EntityManagerInterface;

use Catalyst\ApiBundle\Controller\ApiController;
use Catalyst\ApiBundle\Component\Response as APIResponse;

use App\Entity\Customer;
use App\Entity\CustomerVehicle;
use App\Entity\Vehicle;

use App\Service\HashGenerator;

use Catalyst\AuthBundle\Service\ACLGenerator as ACLGenerator;

class CustomerController extends ApiController
{
    protected $acl_gen;

    public function __construct(ACLGenerator $acl_gen)
    {
        $this->acl_gen = $acl_gen;
    }

    public function register(Request $req, EntityManagerInterface $em)
    {
        $this->denyAccessUnlessGranted('customer.register', null, 'No access.');

        // required parameters
        $params = [
            'first_name',
            'last_name',
            'mobile_number',
            'v_make_id',
            'v_model_year',
            'v_plate_number',
            'v_color',
            'v_condition',
            'v_fuel_type',
        ];

        $msg = $this->checkRequiredParameters($req, $params);
        // error_log('msg - ' . $msg);
        if ($msg)
            return new APIResponse(false, $msg);

        $first_name = $req->request->get('first_name');
        $last_name = $req->request->get('last_name');
        $mobile_number = $req->request->get('mobile_number');

        $make_id = $req->request->get('v_make_id');
        $model_year = $req->request->get('v_model_year');
        $plate_number = $this->cleanPlateNumber($req->request->get('v_plate_number'));
        $color = $req->request->get('v_color');
        $condition = $req->request->get('v_condition');
        $fuel_type = $req->request->get('v_fuel_type');

        // check if vehicle exists
        $vehicle = $em->getRepository(Vehicle::class)->find($make_id);
        if ($vehicle ==  null)
            return new APIResponse(false, 'Invalid vehicle make.');

        // clean up mobile number
        // does it fit our 09XXXXXXXXX pattern?
        if (preg_match('/^09[0-9]{9}$/', $mobile_number))
        {
            // remove first '0'
            $mobile_number = substr($mobile_number, 1);
            // error_log("CONVERTED TO $mobile_number");
        }

        // does it fit our 9XXXXXXXXX pattern?
        if (!preg_match('/^9[0-9]{9}$/', $mobile_number))
            return new APIResponse(false, 'Invalid mobile number.');

        /*
        // min length 2
        // TODO: we need to check proper phone number format
        //       format should be '9XXXXXXXXX'
        // TODO: if format doesn't fit and there's a 0 or 63 prefix, we should be able to detect and convert
        if (strlen($mobile_number <= 2))
            continue;
        */


        $data = [];
        $message = '';
        // check if customer already exists
        $customers = $em->getRepository(Customer::class)->findBy(['phone_mobile' => $mobile_number]);
        if (!empty($customers))
        {
            foreach($customers as $customer)
            {
                // get customer vehicles for customer
                $c_vehicles = $customer->getVehicles();

                $cv_found = false;
                if (!empty($c_vehicles))
                {
                    // check if plate number of customer vehicle matches plate number
                    foreach($c_vehicles as $c_vehicle)
                    {
                        $clean_cv_plate = $this->cleanPlateNumber($c_vehicle->getPlateNumber());

                        // check if it's already there
                        if ($clean_cv_plate == $plate_number)
                        {
                            // customer and customer vehicle already exists
                            $cv_found = true;
                            break;
                        }
                    }
                }

                // if there is a customer vehicle matched
                if ($cv_found)
                {
                    // vehicle found, do nothing
                    $message = 'Customer found.';
                }
                else
                {
                    // customer already exists but not customer vehicle
                    // add customer vehicle
                    $new_cv = new CustomerVehicle();

                    $new_cv->setCustomer($customer)
                        ->setPlateNumber($plate_number)
                        ->setStatusCondition($condition)
                        ->setModelYear($model_year)
                        ->setColor($color)
                        ->setFuelType($fuel_type)
                        ->setHasMotoliteBattery(true)
                        ->setVehicle($vehicle);

                    $em->persist($new_cv);

                    $message = 'Vehicle added.';
                    $data[] = [
                        'make_id' => $make_id,
                        'model_year' => $model_year,
                        'plate_number' => $plate_number,
                        'color' => $color,
                        'condition' => $condition,
                        'fuel_type' => $fuel_type,
                    ];
                }
            }
        }
        else
        {
            // customer not found
            // get the api_user that made the call so that it gets added to the source
            // source becomes CAPI_USER_<insert name of api user here>
            $user_id = $_SERVER['HTTP_X_CATA_API_KEY'];
            $username = $this->getUser()->getName();
            $source = 'CAPI_USER_' . $username;

            $new_cust = new Customer();
            $new_cust->setFirstName($first_name)
                ->setLastName($last_name)
                ->setPhoneMobile($mobile_number)
                ->setCreateSource($source);

            $em->persist($new_cust);

            // add customer vehicle
            $new_cv = new CustomerVehicle();

            $new_cv->setCustomer($new_cust)
                ->setPlateNumber($plate_number)
                ->setStatusCondition($condition)
                ->setModelYear($model_year)
                ->setColor($color)
                ->setFuelType($fuel_type)
                ->setHasMotoliteBattery(true)
                ->setVehicle($vehicle);

            $em->persist($new_cv);

            $message = 'Customer and vehicle added.';
            $data[] = [
                'first_name' => $first_name,
                'last_name' => $last_name,
                'mobile_number' => $mobile_number,
                'make_id' => $make_id,
                'model_year' => $model_year,
                'plate_number' => $plate_number,
                'color' => $color,
                'condition' => $condition,
                'fuel_type' => $fuel_type,
            ];
        }

        $em->flush();
        $em->clear();

        return new APIResponse(true, $message, $data);
    }

    public function verifyCustomer($customer_hash, EntityManagerInterface $em, HashGenerator $hash)
    {
        $this->denyAccessUnlessGranted('customer.verify', null, 'No access.');

        // get customer id from customer_hash
        $cust_id = $hash->getID($customer_hash);

	if ($cust_id == null)
            return new APIResponse(false, 'Invalid customer hash.');

        // find customer using id
        $customer = $em->getRepository(Customer::class)->find($cust_id);

        $data = [];
        $message = '';
        if ($customer == null)
        {
            $message = 'Customer not found.';
            $data[] = [
                'is_customer' => false,
                'first_name' => '',
                'last_name' => '',
                'mobile_number' => '',
            ];
        }
        else
        {
            $message = 'Customer found.';
            $data[] = [
                'is_customer' => true,
                'first_name' => $customer->getFirstName(),
                'last_name' => $customer->getLastName(),
                'mobile_number' => $customer->getPhoneMobile(),
            ];
        }

        return new APIResponse(true, $message, $data);
    }

    protected function cleanPlateNumber($plate)
    {
         // remove spaces and make upper case
        return strtoupper(str_replace(' ', '', $plate));
    }

}