<?php

namespace App\Command;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

use Doctrine\ORM\EntityManagerInterface;

use App\Entity\JobOrder;
use App\Entity\Warranty;
use App\Entity\SAPBattery;

use App\Ramcar\ServiceType;
use App\Ramcar\JOStatus;
use App\Ramcar\WarrantyClass;

use App\Service\WarrantyHandler;

use DateTime;

class WarrantyCleanupCommand extends Command
{
    protected $em;
    protected $wh;
    protected $sapbatt_hash;

    public function __construct(EntityManagerInterface $em, WarrantyHandler $wh)
    {
        $this->em = $em;
        $this->wh = $wh;

        $this->loadSAPBatteries();

        parent::__construct();
    }

    protected function configure()
    {
        $this->setName('warranty:cleanup')
            ->setDescription('Cleanup warranties.')
            ->setHelp('Cleanup warranties')
            ->addArgument('start_date', InputArgument::REQUIRED, 'Start Date')
            ->addArgument('end_date', InputArgument::REQUIRED, 'End Date');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $em = $this->em;

        $s_date = $input->getArgument('start_date');
        $e_date = $input->getArgument('end_date');

        $start_date = DateTime::createFromFormat('Ymd', $s_date);
        $end_date = DateTime::createFromFormat('Ymd', $e_date);
        $end_date->setTime(23, 59);

        // get all job orders with battery new service type within date range
        $jo_query = $em->createQuery('select ii,i,jo,cv from App\Entity\InvoiceItem ii inner join ii.invoice i inner join i.job_order jo inner join jo.cus_vehicle cv join jo.customer c where ii.battery is not null and jo.service_type = :service_type and jo.date_schedule > :date_start and jo.date_schedule < :date_end and jo.status = :status');
        $jo_query->setParameter('service_type', ServiceType::BATTERY_REPLACEMENT_NEW)
            ->setParameter('date_start', $start_date)
            ->setParameter('date_end', $end_date)
            ->setParameter('status', JOStatus::FULFILLED);

        $jos = $jo_query->iterate();

        foreach($jos as $row)
        {
            $invoice_item = $row[0];
            $invoice = $invoice_item->getInvoice();
            $jo = $invoice->getJobOrder();
            $cv = $jo->getCustomerVehicle();
            $customer = $jo->getCustomer();

            error_log($cv->getPlateNumber());
            $clean_plate_num = Warranty::cleanPlateNumber($cv->getPlateNumber());
            if (!($clean_plate_num))
            {
                error_log('invalid plate');
                continue;
            }
            if ($invoice_item == null)
            {
                error_log('invoice item null');
                continue;
            }
            if ($invoice_item->getBattery() == null)
            {
                error_log('invoice item not a battery');
                continue;
            }

            error_log('clean plate, invoice item not null, battery not null');
            // manually retrieve the SAPBattery using the SAPCode
            $battery_sap_code = $invoice_item->getBattery()->getSAPCode();
            $found_battery = $this->findSAPBattery($battery_sap_code);
            $sap_code = '\'' . $battery_sap_code . '\'';
            if (!$found_battery)
            {
                $sap_code = 'NULL';
            }

            // check if a warranty exists with the plate number and date_schedule
            // get date_schedule
            $datetime_schedule = $jo->getDateSchedule();
            $datetime_schedule_str = $datetime_schedule->format('Y-m-d');
            $date_schedule = DateTime::createFromFormat('Y-m-d', $datetime_schedule_str);

            $warranties_date_schedule = $this->em->getRepository(Warranty::class)->findBy(['plate_number' => $clean_plate_num, 'date_purchase' => $date_schedule]);
            if (empty($warranties_date_schedule))
            {
                // check if warranty exists with plate number and date_fulfilled
                $datetime_fulfilled = $jo->getDateFulfill();
                $datetime_fulfilled_str = $datetime_fulfilled->format('Y-m-d');
                $date_fulfilled = DateTime::createFromFormat('Y-m-d', $datetime_fulfilled_str);

                $warranties_date_fulfilled = $this->em->getRepository(Warranty::class)->findBy(['plate_number' => $clean_plate_num, 'date_purchase' => $date_fulfilled]); 
                if (!(empty($warranties_date_fulfilled)))
                { 
                    foreach ($warranties_date_fulfilled as $warranty)
                    {
                        // fix expiration date
                        // get warranty class of JO
                        $jo_warranty_class = $jo->getWarrantyClass();

                        $warranty_period = 0;
                        if ($jo_warranty_class == WarrantyClass::WTY_PRIVATE)
                        {
                            $warranty_period = $invoice_item->getBattery()->getWarrantyPrivate();
                        }
                        if ($jo_warranty_class == WarrantyClass::WTY_COMMERCIAL)
                        {
                            $warranty_period = $invoice_item->getBattery()->getWarrantyCommercial();
                        }
                        if ($jo_warranty_class == WarrantyClass::WTY_TNV)
                        {
                            $warranty_period = $invoice_item->getBattery()->getWarrantyTnv();
                        }

                        // NOTE: changing date_purchase to date_schedule unless told otherwise
                        $date_purchase = $datetime_schedule_str;
                        // compute expiration date
                        $expiry_date = $this->wh->computeDateExpire($date_schedule, $warranty_period);
                        $date_expiry = $expiry_date->format('Y-m-d');

                        $date_purchase_value = '\'' . $date_purchase . '\'';
                        $date_expire_value = '\'' . $date_expiry . '\'';

                        $update_sql_statement = 'UPDATE `warranty` SET date_expire=' . $date_expire_value . ', date_purchase=' . $date_purchase_value . ' WHERE id=\'' . $warranty->getID() . '\';' . "\n";

                        echo $update_sql_statement; 
                    } 
                }
                else
                    error_log('no warranty date_fulfilled found.');
            }
            else
                error_log('warranty date_schedule found.'); 

            $em->detach($row[0]);
            $em->clear();
        } 
    }

    protected function loadSAPBatteries()
    {
        $this->sapbatt_hash = [];

        $sap_batteries = $this->em->getRepository(SAPBattery::class)->findAll();
        foreach($sap_batteries as $sap_batt)
        {
            $id = $sap_batt->getID();
            $brand_size = $sap_batt->getBrand()->getID() . " " .  $sap_batt->getSize()->getID();
            $this->sapbatt_hash[$id] = $brand_size;
        }
    }

    protected function findSAPBattery($batt_id)
    {
        if (!isset($this->sapbatt_hash[$batt_id]))
        {
            return false;
        }

        return true;
    }

}