<?php
/**
 * An AnnouncementAnswer template engine class for XML templates
 *
 * @author		Roland Haeder <webmaster@shipsimu.org>
 * @version		0.0.0
 * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2014 Core Developer Team
 * @license		GNU GPL 3.0 or any newer version
 * @link		http://www.shipsimu.org
 * @todo		This template engine does not make use of setTemplateType()
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
class XmlAnnouncementAnswerTemplateEngine extends BaseXmlAnswerTemplateEngine implements CompileableTemplate, Registerable {
	/**
	 * Some XML nodes must be available for later data extraction
	 */
	const ANNOUNCEMENT_DATA_SESSION_ID       = 'my-session-id';
	const ANNOUNCEMENT_DATA_NODE_STATUS      = 'my-status';
	const ANNOUNCEMENT_DATA_EXTERNAL_ADDRESS = 'my-external-address';
	const ANNOUNCEMENT_DATA_INTERNAL_ADDRESS = 'my-internal-address';

	/**
	 * Protected constructor
	 *
	 * @return	void
	 */
	protected function __construct () {
		// Call parent constructor
		parent::__construct(__CLASS__);

		// Init sub-nodes array
		$this->setSubNodes(array(
			// These nodes don't contain any data
			'my-data',
			'your-data',
			// Data from *this* node
			self::ANNOUNCEMENT_DATA_EXTERNAL_ADDRESS,
			self::ANNOUNCEMENT_DATA_INTERNAL_ADDRESS,
			self::ANNOUNCEMENT_DATA_NODE_STATUS,
			self::ANNOUNCEMENT_DATA_SESSION_ID,
			// Data from other node
			'your-external-address',
			'your-internal-address',
			'your-session-id',
			// Answer status (generic field)
			self::ANSWER_STATUS,
		));
	}

	/**
	 * Creates an instance of the class TemplateEngine and prepares it for usage
	 *
	 * @return	$templateInstance		An instance of TemplateEngine
	 * @throws	BasePathIsEmptyException		If the provided $templateBasePath is empty
	 * @throws	InvalidBasePathStringException	If $templateBasePath is no string
	 * @throws	BasePathIsNoDirectoryException	If $templateBasePath is no
	 *											directory or not found
	 * @throws	BasePathReadProtectedException	If $templateBasePath is
	 *											read-protected
	 */
	public static final function createXmlAnnouncementAnswerTemplateEngine () {
		// Get a new instance
		$templateInstance = new XmlAnnouncementAnswerTemplateEngine();

		// Init instance
		$templateInstance->initXmlTemplateEngine('node', 'announcement_answer');

		// Return the prepared instance
		return $templateInstance;
	}

	/**
	 * Currently not used
	 *
	 * @param	$resource		XML parser resource (currently ignored)
	 * @param	$characters		Characters to handle
	 * @return	void
	 * @todo	Find something useful with this!
	 */
	public function characterHandler ($resource, $characters) {
		// Trim all spaces away
		$characters = trim($characters);

		// Is this string empty?
		if (empty($characters)) {
			// Then skip it silently
			return;
		} // END - if

		/*
		 * Assign the found characters to variable and use the last entry from
		 * stack as the name.
		 */
		parent::assignVariable($this->getStackInstance()->getNamed('node_announcement_answer'), $characters);
	}

	/**
	 * Getter for cache file (FQFN)
	 *
	 * @return	$fqfn	Full-qualified file name of the menu cache
	 */
	public function getAnnouncementAnswerCacheFqfn () {
		$this->partialStub('Please implement this method.');
	}

	/**
	 * Starts the announcement-answer
	 *
	 * @return	void
	 */
	protected function startAnnouncementAnswer () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', 'announcement-answer');
	}

	/**
	 * Starts the my-data
	 *
	 * @return	void
	 */
	protected function startMyData () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', 'my-data');
	}

	/**
	 * Starts the my-external-address
	 *
	 * @return	void
	 */
	protected function startMyExternalAddress () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', self::ANNOUNCEMENT_DATA_EXTERNAL_ADDRESS);
	}

	/**
	 * Starts the my-internal-address
	 *
	 * @return	void
	 */
	protected function startMyInternalAddress () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', self::ANNOUNCEMENT_DATA_INTERNAL_ADDRESS);
	}

	/**
	 * Starts the my-session-id
	 *
	 * @return	void
	 */
	protected function startMySessionId () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', self::ANNOUNCEMENT_DATA_SESSION_ID);
	}

	/**
	 * Starts the my-status
	 *
	 * @return	void
	 */
	protected function startMyStatus () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', self::ANNOUNCEMENT_DATA_NODE_STATUS);
	}

	/**
	 * Finishes the my-status
	 *
	 * @return	void
	 */
	protected function finishMyStatus () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the my-session-id
	 *
	 * @return	void
	 */
	protected function finishMySessionId () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the my-internal-address
	 *
	 * @return	void
	 */
	protected function finishMyInternalAddress () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the my-external-address
	 *
	 * @return	void
	 */
	protected function finishMyExternalAddress () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the my-data
	 *
	 * @return	void
	 */
	protected function finishMyData () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Starts the your-data
	 *
	 * @return	void
	 */
	protected function startYourData () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', 'your-data');
	}

	/**
	 * Starts the your-external-address
	 *
	 * @return	void
	 */
	protected function startYourExternalAddress () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', 'your-external-address');
	}

	/**
	 * Starts the your-internal-address
	 *
	 * @return	void
	 */
	protected function startYourInternalAddress () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', 'your-internal-address');
	}

	/**
	 * Starts the your-session-id
	 *
	 * @return	void
	 */
	protected function startYourSessionId () {
		// Push the node name on the stacker
		$this->getStackInstance()->pushNamed('node_announcement_answer', 'your-session-id');
	}

	/**
	 * Finishes the your-session-id
	 *
	 * @return	void
	 */
	protected function finishYourSessionId () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the your-internal-address
	 *
	 * @return	void
	 */
	protected function finishYourInternalAddress () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the your-external-address
	 *
	 * @return	void
	 */
	protected function finishYourExternalAddress () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the your-data
	 *
	 * @return	void
	 */
	protected function finishYourData () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}

	/**
	 * Finishes the announcement-answer
	 *
	 * @return	void
	 */
	protected function finishAnnouncementAnswer () {
		// Pop the last entry
		$this->getStackInstance()->popNamed('node_announcement_answer');
	}
}

// [EOF]
?>