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<?php
/**
* @package Category Dependency Handler
* @author TechVillage <support@techvill.org>
* @contributor Md Abdur Rahaman Zihad <[zihad.techvill@gmail.com]>
* @created 19-11-2022
*/
namespace App\Services\Import\Dependencies;
use App\Models\Category as CategoryModel;
class Category
{
/**
* @var boolean
*/
protected $createNewEnabled = true;
/**
* @var array
*/
protected $categories = [];
/**
* @var array
*/
protected $slugs = [];
/**
* @var integer
*/
protected $orderByMin = 0;
public function __construct()
{
CategoryModel::select('name', 'slug', 'order_by', 'id')->groupBy('name')->get()->map(function ($category) {
$this->pushCategory($category);
$this->orderByMin = min($this->orderByMin, $category->order_by);
});
}
/**
* Process the given category string
*
* @param string|null $category
*
* @return array;
*/
public function process($category = null)
{
if (is_null($category)) {
return [1];
}
$temporary = explode("|", $category);
if (count($temporary) == 0) {
return [1];
}
$categories = explode(",", $temporary[0]);
if (count($categories) == 0) {
return null;
};
$ids = [];
foreach ($categories as $category) {
$ids[] = $this->addCategory($category);
}
$ids = array_filter($ids);
return count($ids) == 0 ? [1] : $ids;
}
/**
* Get category id by category name
*
* @param string $name
*
* @return mixed
*/
protected function getCategoryIdByName($name)
{
return $this->categoryExists($name) ? $this->categories[$name] : false;
}
/**
* Add new category
*
* @param string $category
*
* @return array|null
*/
protected function addCategory($category)
{
$categories = explode(">", $category);
foreach ($categories as $category) {
$category = trim($category);
if (!$this->categoryExists($category) && $this->canCreate()) {
$id = $this->createNewCategory($category);
} else {
$id = $this->getCategoryIdByName($category);
}
}
return $id ?? null;
}
/**
* Check if the category already exists
*
* @param string $category
*
* @return boolean
*/
protected function categoryExists($category)
{
return isset($this->categories[$category]);
}
/**
* Create new category using category name
*
* @param string $name
*
* @return int
*/
protected function createNewCategory($name)
{
$category = CategoryModel::create([
'name' => $name,
'slug' => $this->generateSlug($name),
'order_by' => $this->orderByMin
]);
$this->pushCategory($category);
return $category->id;
}
/**
* Generate slug
*
* @param string $name
*
* @return string
*/
protected function generateSlug($name)
{
$counter = 1;
$ext = '';
do {
$slug = \Str::slug($name) . $ext;
$ext = '-' . $counter;
} while ($this->slugExists($slug) && $counter++);
return $slug;
}
/**
* Check if the slug already exists
*
* @param string $slug
*
* @return boolean
*/
protected function slugExists($slug)
{
return isset($this->slugs[$slug]);
}
/**
* Push category to to the list
*
* @param CategoryModel $category
*
* @return void
*/
protected function pushCategory($category)
{
$this->categories[$category->name] = $category->id;
array_push($this->slugs, $category->slug);
}
/**
* Disable creating new instance
*
* @return self
*/
public function disableCreateNew()
{
$this->createNewEnabled = false;
return $this;
}
/**
* Checks if creating new instance is enabled
*
* @return boolean
*/
protected function canCreate()
{
return $this->createNewEnabled;
}
}
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