/**
	 * Model Load
	 *
	 * @var    Model
	 * @since 2.0.1
	 */
	protected Model $model;

	/**
	 * Database Load
	 *
	 * @var    Database
	 * @since 2.0.1
	 */
	protected Database $load;

	/**
	 * Constructor
	 *
	 * @param Table       $table     The core table object.
	 * @param Model       $model     The model object.
	 * @param Database    $load      The database object.
	 *
	 * @since 2.0.1
	 */
	public function __construct(Model $model, Database $load)
	{
		$this->model = $model;
		$this->load = $load;
	}

	/**
	 * Get a value from a given table
	 *          Example: $this->value(
	 *                        [
	 *                           'guid' => 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'
	 *                        ], 'value_key'
	 *                    );
	 *
	 * @param   array      $keys      The item keys
	 * @param   string     $field     The field key
	 * @param   string     $table     The table
	 *
	 * @return  mixed
	 * @since 2.0.1
	 */
	public function value(array $keys, string $field)
	{
		return $this->model->value(
			$this->load->value(
				["a.${field}" => $field],
				['a' => 'power'],
				$this->prefix($keys)
			),
			$field,
			'power'
		);
	}

	/**
	 * Get values from a given table
	 *          Example: $this->item(
	 *                        [
	 *                           'guid' => 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'
	 *                        ]
	 *                    );
	 *
	 * @param   array    $keys      The item keys
	 * @param   string   $table     The table
	 *
	 * @return  object|null
	 * @since 2.0.1
	 */
	public function item(array $keys): ?object
	{
		return $this->model->item(
			$this->load->item(
				['all' => 'a.*'],
				['a' => 'power'],
				$this->prefix($keys)
			),
			'power'
		);
	}
 
	/**
	 * Get values from a given table
	 *          Example: $this->items(
	 *                        [
	 *                           'guid' => [
	 *                              'operator' => 'IN',
	 *                              'value' => [''xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'', ''xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'']
	 *                           ]
	 *                        ]
	 *                    );
	 *          Example: $this->items($ids, 'table_name');
	 *
	 * @param   array    $keys    The item keys
	 * @param   string   $table   The table
	 *
	 * @return  array|null
	 * @since 2.0.1
	 */
	public function items(array $keys): ?array
	{
		return $this->model->items(
			$this->load->items(
				['all' => 'a.*'], ['a' => 'power'], $this->prefix($keys)
			),
			'power'
		);
	}

	/**
	 * Add prefix to the keys
	 *
	 * @param   array    $keys The query keys
	 *
	 * @return  array
	 * @since 2.0.1
	 */
	private function prefix(array &$keys): array
	{
		// update the key values
		$bucket = [];
		foreach ($keys as $k => $v)
		{
			$bucket['a.' . $k] = $v;
		}
		return $bucket;
	}