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<?php
/*!
* Hybridauth
* https://hybridauth.github.io | https://github.com/hybridauth/hybridauth
*  (c) 2017 Hybridauth authors | https://hybridauth.github.io/license.html
*/

namespace Hybridauth\Data;

/**
 * A very basic Data collection.
 */
final class Collection
{
    /**
     * Data collection
     *
     * @var mixed
     */
    protected $collection = null;

/**
     * @param mixed $data
     */
    public function __construct($data = null)
    {
        $this->collection = (object)$data;
    }

/**
     * Retrieves the whole collection as array
     *
     * @return mixed
     */
    public function toArray()
    {
        return (array)$this->collection;
    }

/**
     * Retrieves an item
     *
     * @param $property
     *
     * @return mixed
     */
    public function get($property)
    {
        if ($this->exists($property)) {
            return $this->collection->$property;
        }

return null;
    }

/**
     * Add or update an item
     *
     * @param $property
     * @param mixed $value
     */
    public function set($property, $value)
    {
        if ($property) {
            $this->collection->$property = $value;
        }
    }

/**
     * .. until I come with a better name..
     *
     * @param $property
     *
     * @return Collection
     */
    public function filter($property)
    {
        if ($this->exists($property)) {
            $data = $this->get($property);

if (!is_a($data, 'Collection')) {
                $data = new Collection($data);
            }

return $data;
        }

return new Collection([]);
    }

/**
     * Checks whether an item within the collection
     *
     * @param $property
     *
     * @return bool
     */
    public function exists($property)
    {
        return property_exists($this->collection, $property);
    }

/**
     * Finds whether the collection is empty
     *
     * @return bool
     */
    public function isEmpty()
    {
        return !(bool)$this->count();
    }

/**
     * Count all items in collection
     *
     * @return int
     */
    public function count()
    {
        return count($this->properties());
    }

/**
     * Returns all items properties names
     *
     * @return array
     */
    public function properties()
    {
        $properties = [];

foreach ($this->collection as $key => $value) {
            $properties[] = $key;
        }

return $properties;
    }

/**
     * Returns all items values
     *
     * @return array
     */
    public function values()
    {
        $values = [];

foreach ($this->collection as $value) {
            $values[] = $value;
        }

return $values;
    }
}

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