<?php
class CBitrixCloudOption
{
	private $name = '';
	private $value = /*.(array[string]string).*/ null;

	/**
	 *
	 * @param string $name
	 * @return void
	 *
	 */
	public function __construct($name)
	{
		$this->name = $name;
	}

	/**
	 * Fabric method
	 *
	 * @param string $name
	 * @return CBitrixCloudOption
	 *
	 */
	public static function getOption($name)
	{
		$ob = new CBitrixCloudOption($name);
		return $ob;
	}

	/**
	 *
	 * @return array[string]string
	 *
	 */
	private function _read_db()
	{
		global $DB;
		$result = /*.(array[string]string).*/ [];
		$rs = $DB->Query("
			select PARAM_KEY, PARAM_VALUE
			from b_bitrixcloud_option
			where NAME = '" . $DB->ForSQL($this->name) . "'
			order by SORT
		");
		while (is_array($ar = $rs->Fetch()))
		{
			$key = $ar['PARAM_KEY'];
			$result[$key] = $ar['PARAM_VALUE'];
		}
		return $result;
	}

	/**
	 *
	 * @return array[string][string]string
	 *
	 */
	private function _read_all_db()
	{
		global $DB;
		$result = /*.(array[string][string]string).*/ [];
		$rs = $DB->Query('
			select NAME, PARAM_KEY, PARAM_VALUE
			from b_bitrixcloud_option
			order by NAME, SORT
		');
		while (is_array($ar = $rs->Fetch()))
		{
			$name = $ar['NAME'];
			$key = $ar['PARAM_KEY'];
			$result[$name][$key] = $ar['PARAM_VALUE'];
		}
		return $result;
	}

	/**
	 *
	 * @return void
	 *
	 */
	private function _delete_db()
	{
		global $DB;
		$DB->Query("
			delete
			from b_bitrixcloud_option
			where NAME = '" . $DB->ForSQL($this->name) . "'
		");
	}

	/**
	 *
	 * @param array[string]string $value
	 * @return void
	 *
	 */
	private function _write_db($value)
	{
		global $DB;
		if (is_array($value))
		{
			$sort = 0;
			foreach ($value as $key => $val)
			{
				$DB->Add('b_bitrixcloud_option', [
					'NAME' => $this->name,
					'SORT' => (string)$sort,
					'PARAM_KEY' => $key,
					'PARAM_VALUE' => $val,
				]);
				$sort++;
			}
		}
	}

	/**
	 *
	 * @param array[string]string $value
	 * @return void
	 *
	 */
	private function _update_db($value)
	{
		global $DB;
		if (!is_array($value))
		{
			$value = [];
		}

		reset($value);
		$rs = $DB->Query("
			select ID, SORT, PARAM_KEY, PARAM_VALUE
			from b_bitrixcloud_option
			where NAME = '" . $DB->ForSQL($this->name) . "'
			order by ID
		");

		$sort = 0;
		foreach ($value as $key => $val)
		{
			if ($db_row = $rs->fetch())
			{
				if (
					(string)$db_row['PARAM_VALUE'] !== (string)$val
					|| (string)$db_row['PARAM_KEY'] !== (string)$key
					|| (string)$db_row['SORT'] !== (string)$sort
				)
				{
					$DB->Query("
						UPDATE b_bitrixcloud_option SET
							PARAM_KEY = '" . $DB->ForSql($key, 50) . "'
							,PARAM_VALUE = '" . $DB->ForSql($val, 200) . "'
							,SORT = " . $sort . '
						WHERE ID = ' . $db_row['ID'] . '
					');
				}
			}
			else
			{
				$DB->Add('b_bitrixcloud_option', [
					'NAME' => $this->name,
					'SORT' => (string)$sort,
					'PARAM_KEY' => $key,
					'PARAM_VALUE' => $val,
				]);
			}
			$sort++;
		}

		if ($db_row = $rs->fetch())
		{
			$DB->Query("
				DELETE FROM b_bitrixcloud_option
				WHERE NAME = '" . $DB->ForSql($this->name, 50) . "'
				AND ID >= " . $db_row['ID'] . '
			');
		}
	}

	/**
	 *
	 * @return bool
	 *
	 */
	public function isExists()
	{
		return (count($this->_read_db()) > 0);
	}

	/**
	 *
	 * @return array[string]string
	 *
	 */
	public function getArrayValue()
	{
		global $CACHE_MANAGER;
		if ($this->name === '')
		{
			return /*.(array[string]string).*/ [];
		}

		if (!isset($this->value))
		{
			if (CACHED_b_bitrixcloud_option <= 0)
			{
				$this->value = $this->_read_db();
			}
			else
			{
				if (!$CACHE_MANAGER->Read(CACHED_b_bitrixcloud_option, 'b_bitrixcloud_option'))
				{
					$arOptions = $this->_read_all_db();
					$CACHE_MANAGER->Set('b_bitrixcloud_option', $arOptions);
				}
				else
				{
					$arOptions = $CACHE_MANAGER->Get('b_bitrixcloud_option');
				}
				if (array_key_exists($this->name, $arOptions))
				{
					$this->value = $arOptions[$this->name];
				}
				else
				{
					$this->value = /*.(array[string]string).*/ [];
				}
			}
		}
		return $this->value;
	}

	/**
	 *
	 * @return string
	 *
	 */
	public function getStringValue()
	{
		$value = $this->getArrayValue();
		return (string)current($value);
	}

	/**
	 *
	 * @return int
	 *
	 */
	public function getIntegerValue()
	{
		$value = $this->getArrayValue();
		return (integer)current($value);
	}

	/**
	 * @param array[string]string $value
	 * @return void
	 *
	 */
	public function setArrayValue($value)
	{
		global $CACHE_MANAGER;
		if ($this->name !== '')
		{
			$stored = $this->getArrayValue();
			if ($stored !== $value)
			{
				$this->value = null;
				$this->_update_db($value);
				if (CACHED_b_bitrixcloud_option !== false)
				{
					$CACHE_MANAGER->Clean('b_bitrixcloud_option');
				}
			}
		}
	}

	/**
	 * @param string $value
	 * @return void
	 *
	 */
	public function setStringValue($value)
	{
		$this->setArrayValue([
			'0' => $value,
		]);
	}

	/**
	 * @return void
	 *
	 */
	public function delete()
	{
		$this->setArrayValue(/*.(array[string]string).*/ []);
	}
}