<?php

namespace App\Service;

use App\Entity\TrProgress;
use League\Csv\Reader;
use League\Csv\Statement;
use Zend\Config\Config;
use Zend\Http\Client;

class TrInfoCollectorService
{
    const UNIT_CORE = 'core';
    const UNIT_SIG  = 'sig';
    const UNIT_TADE = 'tade';

    const MHO_MAP = [
        'ETH-TSPCW-D' => self::UNIT_CORE,
        'ETH-TSPCORE' => self::UNIT_CORE,
        'XTS-TSP-SIG' => self::UNIT_SIG,
        'XTS-TSPSIGD' => self::UNIT_SIG,
        'ETH-TADE-DE' => self::UNIT_TADE,
        'ETH-TADE-MA' => self::UNIT_TADE,
    ];

    /**
     * @var Config
     */
    private $config;

    /**
     * @var Client
     */
    private $httpClient;

    /**
     * JiraClientService constructor.
     * @param Client $client
     * @param Config $config
     */
    public function __construct(Client $client, Config $config)
    {
        $this->httpClient = $client;
        $this->config = $config;
    }

    /**
     * < 700 daily progress
     *  * weekly
     * @return array
     * @todo calculate progress late stuff
     */
    public function getProgressInfo()
    {
        $user = $this->config->get('mhweb.user');
        $password = $this->config->get('mhweb.password');
        /** @var string $trProgressUri */
        $trProgressUri = $this->config->get('url.mhWebTrProgress');

        $response = $this->httpClient
            ->setAuth($user, $password)
            ->setUri($trProgressUri)
            ->send();

        if (!$response->isSuccess()) {
            throw new \UnexpectedValueException("Bad MHWEB result", $response->getStatusCode());
        }

        $csvResponse = $response->getBody();
        $csvReader = Reader::createFromString($csvResponse);
        $csvReader->setHeaderOffset(0);

        return $this->parseProgressCsvRecords($csvReader);
    }

    public function getPraGoals()
    {
        $user = $this->config->get('mhweb.user');
        $password = $this->config->get('mhweb.password');
        /** @var string $trProgressUri */
        $trProgressUri = $this->config->get('url.mhWebPraGoals');

        $response = $this->httpClient
            ->setAuth($user, $password)
            ->setUri($trProgressUri)
            ->send();

        if (!$response->isSuccess()) {
            throw new \UnexpectedValueException("Bad MHWEB result", $response->getStatusCode());
        }

        $csvResponse = $response->getBody();
        $csvReader = Reader::createFromString($csvResponse);
        $csvReader->setHeaderOffset(0);

        $statement = new Statement();
        $csvRecords = $statement
            ->process($csvReader);

        $goalCounter = $this->initGoalCounter();

        foreach ($csvRecords as $record) {
            $goalCounter[self::MHO_MAP[$record["mho"]]][$record["prio"]]++;
        }

        return $this->caltulatePraBaseDiff($goalCounter);
    }

    private function caltulatePraBaseDiff($goalCounter): array
    {
        $praBaseData = $this->config->get('pra.baseData')->toArray();
        foreach ($goalCounter as $mho => &$counters) {
            foreach (['A', 'B', 'C'] as $prio) {
                $counters[$prio] = $counters[$prio] - $praBaseData[$prio][$mho];
            }
        }
        return $goalCounter;
    }

    private function parseProgressCsvRecords(Reader $csvReader)
    {
        $teamMembers = $this->config->get('team.members')->toArray();
        $statement = new Statement();
        $csvRecords = $statement
            ->where(function($record) use ($teamMembers) {
                return in_array(strtolower($record['owner']), $teamMembers);
            })
            ->process($csvReader);

        $trProgressList = [];
        foreach ($csvRecords as $csvRecord) {
            $trProgress = new TrProgress();
            $trProgress->setEriref($csvRecord["eriref"])
                ->setHeading($csvRecord["heading"])
                ->setPrio($csvRecord["prio"])
                ->setLastProgressInDays($this->getLastProgressInDay($csvRecord))
            ;
            $trProgressList[] = $trProgress;
        }

        usort($trProgressList, function(TrProgress $a, TrProgress $b){
            return $b->getLastProgressInDays() <=> $a->getLastProgressInDays();
        });

        return $trProgressList;
    }

    /**
     * @param array $csvRecord
     * @return int
     * @todo fix the BS with tuesday or whatever
     */
    private function getLastProgressInDay(array $csvRecord): int
    {
        $lastProgressDate = null;
        $hasNoProgressDate = false;
        try {
            $lastProgressDate = new \DateTime(str_replace(" - "," ", $csvRecord["lastprogressdate"]));
        } catch(\Exception $e) {
            $hasNoProgressDate = true;
        }
        try {
            $lastDesignDate = new \DateTime($csvRecord["lastdesigndate"]);
            if($hasNoProgressDate || $lastDesignDate > $lastProgressDate) {
                $lastProgressDate = $lastDesignDate;
            }
        } catch (\Exception $e) {
            if($hasNoProgressDate) {
                return 0;
            }
        }

        $now = new \DateTime();
        $dateDiff = $now->diff($lastProgressDate);
        return $dateDiff->days;
    }

    private function initGoalCounter(): array
    {
        $emptyPrios = ['A' => 0, 'B' => 0, 'C' => 0];
        return [
            self::UNIT_CORE => $emptyPrios,
            self::UNIT_SIG  => $emptyPrios,
            self::UNIT_TADE => $emptyPrios,
        ];
    }
}