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<?php

namespace Lu\LuContacts\Models;

use Lu\LuApi\DataSources\LuisContacts;
use Lu\LuContacts\Helpers\DataHelper;
use TYPO3\CMS\Extbase\Mvc\Web\Routing\UriBuilder;

/**
 * Class Alphabet
 *
 * @author  Dainis Abols <dainis.abols@lu.lv>
 * @owner   University of Latvia
 * @version 3.0.0
 * @since   29.06.2018
 *
 * @package Lu\LuContacts\Models
 */
class Alphabet
{
    /**
     * Currently active item name
     *
     * @var string
     */
    private $active = '';


    /**
     * Pre-set uri builder
     *
     * @var \TYPO3\CMS\Extbase\Mvc\Web\Routing\UriBuilder
     */
    private $uriBuilder;

    /**
     * Settings
     *
     * @var array
     */
    private $settings;

    /**
     * Define alphabet
     *
     * @param bool $count
     *
     * @return array
     */
    private function alphabet($count = false): array
    {
        // Pre-set full alphabet list
        $luisContacts = new LuisContacts();
        $DataHelper   = new DataHelper();
        $fullList     = [
            'a' => 'A, Ā',
            'b' => 'B',
            'c' => 'C, Č',
            'd' => 'D',
            'e' => 'E, Ē',
            'f' => 'F',
            'g' => 'G, Ģ',
            'h' => 'H',
            'i' => 'I, Ī',
            'j' => 'J',
            'k' => 'K, Ķ',
            'l' => 'L, Ļ',
            'm' => 'M',
            'n' => 'N, Ņ',
            'o' => 'O',
            'p' => 'P',
            'q' => 'Q',
            'r' => 'R',
            's' => 'S, Š',
            't' => 'T',
            'u' => 'U, Ū',
            'v' => 'V',
            'w' => 'W',
            'x' => 'X',
            'y' => 'Y',
            'z' => 'Z, Ž',
        ];

        // Set request
        $luisContacts->setRequestType('person');
        $luisContacts->setUnitParentId($this->settings['parentId']);
        $luisContacts->setUnitSubParents();
        if ($this->settings['addressId']) {
            $luisContacts->setUnitAddressId(@SOLR_PREFIX_ADDRESS.$this->settings['addressId']);
        }

        foreach ($fullList as $letter => $letterCombo) {
            $jsonData = $luisContacts->fetchLettersCount(explode(",", $letterCombo));
            $data     = $DataHelper->APIDecode($jsonData);
            if (!$data['data']) {
                unset($fullList[$letter]);
            } else if ($count) {
                // Check if count requested
                $fullList[$letter] = $data['data'].":".$fullList[$letter];
            }
        }

        // Return final list
        return $fullList;
    }

    /**
     * Alphabet constructor.
     *
     * @param null $settings
     */
    public function __construct($settings = null)
    {
        $this->settings = $settings;
    }

    /**
     * Set active item name
     *
     * @param $active
     */
    public function setActive($active)
    {
        $this->active = $active;
    }

    /**
     * Retrieve active item name
     *
     * @return string
     */
    public function getActive()
    {
        return $this->active;
    }

    /**
     * Sets uri builder
     *
     * @param \TYPO3\CMS\Extbase\Mvc\Web\Routing\UriBuilder $uriBuilder
     */
    public function setUriBuilder(UriBuilder $uriBuilder)
    {
        $this->uriBuilder = $uriBuilder;
    }

    /**
     * Return letter full values
     *
     * @param $letter
     *
     * @return mixed
     */
    public function getValuesByLetter($letter)
    {
        // Set navigation options
        $alphabet = $this->alphabet();

        return @$alphabet[$letter];
    }

    /**
     * Create alphabet navigation
     *
     * @return array
     */
    public function getAlphabet(): array
    {
        // Set navigation options
        $alphabet = $this->alphabet(true);

        // Build navigation
        $nav       = [];
        $activeSet = false;
        foreach ($alphabet as $letter => $display) {
            $tmp          = [];
            $tmp['id']    = $letter;
            $expl         = explode(":", $display);
            $tmp['count'] = $expl[0];
            $tmp['name']  = $expl[1];

            // If uri builder provided, add urls
            if ($this->uriBuilder) {
                $arguments  = [
                    'tx_lucontacts_pi1[action]'   => 'list',
                    'tx_lucontacts_pi1[listType]' => 'surname',
                    'tx_lucontacts_pi1[letter]'   => $letter,
                ];
                $tmp['url'] = $this->uriBuilder->setArguments($arguments)->buildFrontendUri();
            }

            // Check active request
            if ($this->active) {
                if ($letter == $this->active) {
                    $this->assignActive($tmp);
                    $activeSet = true;
                }
            }

            $nav[] = $tmp;
        }

        // Check if any active set and assign first, if none
        if (!$activeSet) {
            $this->assignActive($nav[0]);
        }

        // Return finished array
        return $nav;
    }

    /**
     * Assign active status to provided element
     *
     * @param $element
     */
    private function assignActive(&$element)
    {
        $element['active'] = true;
    }
}