<?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 DateTime;

use App\Entity\JOEvent;

use App\Ramcar\JOEventType;

class ReportRiderTime extends Command
{
    protected $em;
    protected $jo_index;
    protected $filtered_jo_index;

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

        parent::__construct();
    }

    protected function configure()
    {
        $this->setName('report:rider-time')
            ->setDescription('Generate CSV file with report on rider time.')
            ->setHelp('Generate report on rider time from assignment to fulfilled.')
            ->addArgument('file', InputArgument::REQUIRED, 'Path to the output CSV file.')
            ->addArgument('date_from', InputArgument::REQUIRED, 'Date from.')
            ->addArgument('date_to', InputArgument::REQUIRED, 'Date to.');
    }

    protected function populateJOIndex($date_from, $date_to)
    {
        $jo_events = $this->em->createQuery("select e from App\Entity\JOEvent e where e.date_create >= :dfrom and e.date_create <= :dto")
            ->setParameters([
                'dfrom' => $date_from,
                'dto' => $date_to,
            ])
            ->getResult();
        // $jo_events = $this->em->getRepository(JOEvent::class)->findBy('date_create' => '20180905');

        $this->jo_index = [];

        foreach ($jo_events as $jo_event)
        {
            $jo = $jo_event->getJobOrder();
            $jo_id = $jo->getID();

            if (!isset($this->jo_index[$jo_id]))
                $this->jo_index[$jo_id] = [
                    'create' => $jo->getDateCreate(),
                    'hub_assign' => null,
                    'rider_assign' => null,
                    'fulfill' => null,
                    // 'data' => $jo,
                    'data' => [
                        'id' => $jo->getID(),
                        'date_schedule' => $jo->getDateSchedule(),
                    ],
                ];

            // only interested in fulfilled and rider_assign
            switch ($jo_event->getTypeID())
            {
                case JOEventType::CREATE:
                    $this->jo_index[$jo_id]['create'] = $jo_event->getDateHappen();
                    break;
                case JOEventType::HUB_ASSIGN:
                    $this->jo_index[$jo_id]['hub_assign'] = $jo_event->getDateHappen();
                    break;
                case JOEventType::RIDER_ASSIGN:
                    $this->jo_index[$jo_id]['rider_assign'] = $jo_event->getDateHappen();
                    break;
                case JOEventType::FULFILL:
                    $this->jo_index[$jo_id]['fulfill'] = $jo_event->getDateHappen();
                    break;
            }
        }
    }

    protected function filterJOIndex()
    {
        // keep only the ones with both assign and fulfill status

        $this->filtered_jo_index = [];

        foreach ($this->jo_index as $index => $joi)
        {
            // no hub assign because they used re-assign right away
            // TODO: fix so we take this into account
            if ($joi['hub_assign'] == null)
                continue;

            if($joi['rider_assign'] != null && $joi['fulfill'] != null)
            {
                $this->filtered_jo_index[$index] = $joi;

                $interval = $joi['fulfill']->diff($joi['rider_assign']);
                $this->filtered_jo_index[$index]['dispatch_secs'] = $joi['hub_assign']->getTimestamp() - $joi['create']->getTimestamp();
                $this->filtered_jo_index[$index]['seconds'] = $joi['fulfill']->getTimestamp() - $joi['rider_assign']->getTimestamp();
            }
        }
    }


    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $csv_file = $input->getArgument('file');
        $date_from = $input->getArgument('date_from');
        $date_to = $input->getArgument('date_to');

        // attempt to open file
        try
        {
            $fh = fopen($csv_file, "w");
        }
        catch (Exception $e)
        {
            throw new Exception('The file "' . $csv_file . '" could be opened.');
        }

        $this->populateJOIndex($date_from, $date_to);
        $this->filterJOIndex();

        foreach ($this->filtered_jo_index as $joi)
        {
            fputcsv($fh, [
                $joi['data']['id'],
                $joi['data']['date_schedule']->format('Y-m-d'),
                $joi['dispatch_secs'],
                $joi['seconds'],
            ]);
        }

        fclose($fh);

        return 0;
    }
}