<?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 Doctrine\DBAL\Exception\UniqueConstraintViolationException;
use Catalyst\APIBundle\Controller\APIController;
use Catalyst\APIBundle\Response\APIResponse;

use App\Entity\Warranty;
use App\Entity\BatteryModel;
use App\Entity\BatterySize;
use App\Entity\SAPBattery;
use App\Entity\SAPBatterySize;
use App\Entity\SAPBatteryBrand;

use App\Ramcar\NameValue;
use App\Ramcar\WarrantyClass;
use App\Ramcar\WarrantyStatus;
use DateTime;

class WarrantyController extends APIController
{
    protected function cleanSerial($serial)
    {
        return trim(strtoupper($serial));
    }

    protected function generateWarrantyData(Warranty $warr)
    {
        $batt = $warr->getSAPBattery();

        $data = [
            'id' => (int) $warr->getID(),
            'serial' => (string) $warr->getSerial(),
            'warranty_class' => (string) $warr->getWarrantyClass(),
            'plate_number' => (string) $warr->getPlateNumber(),
            'battery' => [
                'sku' => (string) ($batt == null ? '' : $batt->getID()),
                'brand' => (int) ($batt == null ? 0 : $batt->getBrand()->getID()),
                'size' => (int) ($batt == null ? 0 : $batt->getSize()->getID()),
            ],
            'customer' => [
                'first_name' => (string) $warr->getFirstName() ?? '',
                'last_name' => (string) $warr->getLastName() ?? '',
                'mobile_number' => (string) $warr->getMobileNumber() ?? '',
            ],
            'status' => (string) $warr->getStatus(),
            'date_create' => (string) $warr->getDateCreate()->format('YmdHis'),
            'date_purchase' => (string) $warr->getDatePurchase()->format('Ymd'),
            'date_expire' => (string) $warr->getDateExpire()->format('Ymd'),
        ];

        $date_claim = $warr->getDateClaim();
        if ($date_claim == null)
            $data['date_claim'] = null;
        else
            $data['date_claim'] = (string) $warr->getDateClaim()->format('Ymd');

        return $data;
    }

    public function find($serial, EntityManagerInterface $em)
    {
        $clean_serial = $this->cleanSerial($serial);
        $warr = $em->getRepository(Warranty::class)->findOneBy(['serial' => $clean_serial]);

        if ($warr == null)
            return new APIResponse(false, 'No warranty found with that serial number.', null, 404);

        
        $data = [
            'warranty' => $this->generateWarrantyData($warr),
        ];

        return new APIResponse(true, 'Warranty found.', $data);
    }

    public function getAll(Request $req, EntityManagerInterface $em)
    {
        $order = $req->query->get('order');
        if ($order == null)
            $order = 'ASC';

        $max = $req->query->get('limit');
        if ($max == null)
            $max = 20;

        $start = $req->query->get('start');
        if ($start == null)
            $start = 0;

        $qb = $em->createQueryBuilder();

        $query = $qb->select('w')
            ->from('App\\Entity\\Warranty', 'w')
            ->orderBy('w.serial', $order)
            ->setFirstResult($start)
            ->setMaxResults($max)
            ->getQuery();

        $warrs = $query->getResult();

        $warr_data = [];
        foreach ($warrs as $warr)
            $warr_data[] = $this->generateWarrantyData($warr);

        $data = [
            'warranties' => $warr_data,
        ];

        return new APIResponse(true, 'Warranties found.', $data);
    }

    public function register(Request $req, EntityManagerInterface $em)
    {
        // required parameters
        $params = [
            'serial',
            'warranty_class',
            'plate_number',
            'date_expire',
            'date_purchase',
            'sku',
            /*
            'battery_model_id',
            'battery_size_id',
            */
        ];
        $msg = $this->checkRequiredParameters($req, $params);
        error_log('msg - ' . $msg);
        if ($msg)
            return new APIResponse(false, $msg);

        $serial = $req->request->get('serial');
        $date_expire_string = $req->request->get('date_expire');
        $date_pur_string = $req->request->get('date_purchase');
        $warr_class = $req->request->get('warranty_class');
        $plate = $req->request->get('plate_number');
        $sku = $req->request->get('sku');

        $fname = $req->request->get('first_name', null);
        $lname = $req->request->get('last_name', null);
        $mnum = $req->request->get('mobile_number', null);

        /*
        $bmodel_id = $req->request->get('battery_model_id');
        $bsize_id = $req->request->get('battery_size_id');
        */

        // wrong date expire format
        $date_expire = DateTime::createFromFormat('Ymd', $date_expire_string);
        if ($date_expire === false)
            return new APIResponse(false, 'Wrong date format: date_expire.');

        // wrong date purchase format
        $date_pur = DateTime::createFromFormat('Ymd', $date_pur_string);
        if ($date_pur === false)
            return new APIResponse(false, 'Wrong date format: date_purchase.');

        // valid warranty class
        if (!WarrantyClass::validate($warr_class))
            return new APIResponse(false, 'Invalid warranty class.');

        // plate number
        $plate = Warranty::cleanPlateNumber($plate);
        if (!$plate)
            return new APIResponse(false, 'Invalid plate number.');

        // battery
        $batt = $em->getRepository(SAPBattery::class)->find($sku);
        if ($batt == null)
            return new APIResponse(false, 'Invalid battery SKU.');

        /*
        // battery model
        $model = $em->getRepository(BatteryModel::class)->find($bmodel_id);
        if ($model == null)
            return new APIResponse(false, 'Invalid battery model id.');

        // battery size
        $size = $em->getRepository(BatterySize::class)->find($bsize_id);
        if ($size == null)
            return new APIResponse(false, 'Invalid battery size id.');
        */

        // warranty
        $warr = new Warranty();
        $warr->setSerial($serial)
            ->setWarrantyClass($warr_class)
            ->setPlateNumber($plate)
            ->setFirstName($fname)
            ->setLastName($lname)
            ->setMobileNumber($mnum)
            ->setSAPBattery($batt)
            ->setDatePurchase($date_pur)
            ->setDateClaim(null)
            ->setDateExpire($date_expire);

        try
        {
            $em->persist($warr);
            $em->flush();
        }
        catch (UniqueConstraintViolationException $e)
        {
            return new APIResponse(false, 'Duplicate serial encountered.');
        }

        // data
        $data = [
            'warranty' => $this->generateWarrantyData($warr),
        ];

        return new APIResponse(true, 'Warranty registered.', $data);
    }

    public function claim(Request $req, EntityManagerInterface $em, $id)
    {
        // required parameters
        $params = [
            'serial',
        ];
        $msg = $this->checkRequiredParameters($req, $params);
        if ($msg)
            return new APIResponse(false, $msg);

        // no warranty
        $warr = $em->getRepository(Warranty::class)->find($id);
        if ($warr == null)
            return new APIResponse(false, 'No warranty found with that id.', null, 404);

        // warranty is not active
        if (!$warr->canClaim())
            return new APIResponse(false, 'Warranty is not active.');


        // check if new serial has been used
        $serial = $req->request->get('serial');
        $clean_serial = $this->cleanSerial($serial);
        $check_warr = $em->getRepository(Warranty::class)->findOneBy(['serial' => $clean_serial]);
        if ($check_warr != null)
            return new APIResponse(false, 'Serial for replacement has already been used.');

        // set status to claim
        $warr->setStatus(WarrantyStatus::CLAIMED)
            ->setDateClaim(new DateTime());

        // make replacement warranty
        $new_warr = new Warranty();
        $new_warr->setSerial($clean_serial)
            ->setWarrantyClass($warr->getWarrantyClass())
            ->setPlateNumber($warr->getPlateNumber())
            ->setFirstName($warr->getFirstName())
            ->setLastName($warr->getLastName())
            ->setMobileNumber($warr->getMobileNumber())
            ->setSAPBattery($warr->getSAPBattery())
            ->setDatePurchase($warr->getDatePurchase())
            ->setDateClaim(null)
            ->setDateExpire($warr->getDateExpire())
            ->setClaimedFrom($warr);

        $em->persist($new_warr);


        $em->flush();

        // TODO: claim log

        return new APIResponse(true, 'Warranty claimed successfully.');
    }

    public function getPlateWarranties($plate_number, EntityManagerInterface $em)
    {
        $warranties = $em->getRepository(Warranty::class)
            ->findBy(['plate_number' => $plate_number], ['date_purchase' => 'DESC']);

		$warr_data = [];
        foreach ($warranties as $warr)
        {
			$warr_data[] = $this->generateWarrantyData($warr);
        }

        $data = [
            'warranties' => $warr_data,
        ];

        return new APIResponse(true, 'Warranties loaded.', $data);
    }
}