<?php

namespace bff\modules\svc;

use Svc;
use bff\img\ImageUploader;

# todo: check if this class (and table) used
class ServiceIcon extends ImageUploader
{
    # Variants prefixes
    public const BIG   = 'b';
    public const SMALL = 's';

    # Sizes
    public const szOriginal = 'o'; # original size

    /**
     * @param int $svcID ID услуги
     * @return static
     */
    public static function i($svcID = 0)
    {
        bff()->singletonIf('svc.service.icon', function () {
            return new static();
        });

        /** @var static $i */
        $i = bff('svc.service.icon');
        $i->setRecordID($svcID);
        return $i;
    }

    public function initSettings()
    {
        $this->path = $this->app->path('svc', 'images');
        $this->pathTmp = $this->app->path('tmp', 'images');
        $this->url = $this->app->url('svc', 'images');
        $this->urlTmp = $this->app->url('tmp', 'images');

        $this->table = Svc::TABLE_SERVICES;
        $this->fieldID = 'id';
        $this->filenameLetters = 4;
        $variants = $this->getVariants();
        if (!empty($variants)) {
            $this->setVariant(key($variants));
        }
    }

    /**
     * Build service icon URL
     * @param string $svcID
     * @param string $fileName
     * @param string $variantKey
     * @return string
     */
    public function url($svcID, string $fileName, string $variantKey = self::BIG): string
    {
        $this->setRecordID($svcID);

        if (empty($fileName)) {
            # default
            return $this->url . 'default-' . $variantKey . '.png';
        } else {
            return $this->getURL($fileName, static::szOriginal);
        }
    }

    /**
     * Список доступных вариантов размеров
     * @return array
     */
    public function getVariants()
    {
        return $this->app->filter('svc.service.icon.variants', [
            'icon_' . static::BIG   => [
                'title' => _t('svc', 'Icon (large)'),
                'key'   => static::BIG,
                'sizes' => [
                    static::szOriginal => ['width' => 128, 'height' => 128, 'o' => true],
                ],
            ],
            'icon_' . static::SMALL => [
                'title' => _t('svc', 'Icon (small)'),
                'key'   => static::SMALL,
                'sizes' => [
                    static::szOriginal => ['width' => 32, 'height' => 32, 'o' => true],
                ],
            ],
        ]);
    }

    /**
     * @param string $key
     * @return void
     */
    public function setVariant(string $key)
    {
        $list = $this->getVariants();
        if (isset($list[$key])) {
            $this->fieldImage = $key;
            $this->sizes = $list[$key]['sizes'];
        }
    }
}