<?php

/**
 * Created by CS medien- & kommunikationssysteme.
 * @author Christian Steinle
 * @date 03.08.2016
 *
 * @copyright CS medien- & kommunikationssysteme (http://www.steinle-computer.de)
 */

namespace Model;


use Helper\Database;

class NavigationModel extends Database
{

	const TBL_NAME = TBL_FRONT_NAVIGATION;

	const PRIMARY_KEY = 'navID';

	const ORDER_BY = 'ORDER BY navSort ASC';

	static $filter = 'navActive = "yes"';

	protected static $navigationPath = array();

	protected static $activeNavID = 0;

	protected static $title = '';

	protected static $keyVisual = array();

	protected static $headline = '';

	protected static $contents = array();


	/**
	 * Setzt später benötigte Variablen für den FrontendController, so dass die Datenmodelle und die Views instanziiert werden können
	 * @param array $routeParts
	 * @param bool $isEditable
	 */
	public static function init(array $routeParts, $isEditable = false)
	{
		self::getIndex();
		if ($isEditable)
		{
			self::initBackend($routeParts[0], false);
		}
		else
		{
			self::initFrontend($routeParts);
		}
	}


	protected static function initBackend($siteID, $depth)
	{
		foreach (self::$data as $navID => $navItem)
		{
			if ($navID == $siteID && $depth === false)
			{
				self::$activeNavID = $navItem['navID'];
				self::$title = $navItem['navTitle'];
				self::$headline = $navItem['navHeadline'];
				self::initKeyVisual($navItem['navKeyVisual']);
				self::initContent($navItem['navContent']);
				self::buildNavigationPath();
				break;
			}
		}
	}

	/**
	 * @param string $navKeyVisual
	 */
	protected static function initKeyVisual($navKeyVisual)
	{
		if (is_null($navKeyVisual))
		{
			return;
		}
		if (is_array(json_decode($navKeyVisual, true)))
		{
			self::$keyVisual = json_decode($navKeyVisual, true);
		}
	}

	/**
	 * @param string $navContents
	 */
	protected static function initContent($navContents)
	{
		if (is_null($navContents))
		{
			return;
		}
		if (is_array(json_decode($navContents, true)))
		{
			self::$contents = json_decode($navContents, true);
		}
	}

	protected static function buildNavigationPath()
	{
		$navStart = $navStartPath[] = self::$activeNavID;
		while ($navStart !== '0' && !is_null($navStart))
		{
			$navStart = $navStartPath[] = self::$data[$navStart]['navStart'];
		}
		array_pop($navStartPath);
		self::$navigationPath = array_reverse($navStartPath);
	}

	protected static function initFrontend(array $routeParts)
	{
		$navStart = 0;
		foreach ($routeParts as $navLink)
		{
			foreach (self::$data as $navID => $navItem)
			{
				if ($navItem['navStart'] == $navStart && $navItem['navLink'] == $navLink)
				{
					$navStart = $navItem['navID'];
					self::$navigationPath[] = self::$activeNavID = $navItem['navID'];
					self::$title = $navItem['navTitle'];
					self::initKeyVisual($navItem['navKeyVisual']);
					self::$headline = $navItem['navHeadline'];
					self::initContent($navItem['navContent']);
				}
			}
		}
	}

	/**
	 * @return array
	 */
	public static function getNavigationPath()
	{
		return self::$navigationPath;
	}


	/**
	 * @return int
	 */
	public static function getActiveNavID()
	{
		return self::$activeNavID;
	}


	/**
	 * @return string
	 */
	public static function getTitle()
	{
		return self::$title;
	}


	/**
	 * @return array
	 */
	public static function getKeyVisual()
	{
		return self::$keyVisual;
	}


	/**
	 * @return string
	 */
	public static function getHeadline()
	{
		return self::$headline;
	}


	/**
	 * @return array
	 */
	public static function getContents()
	{
		return self::$contents;
	}


	/**
	 * @return array
	 */
	public static function getData()
	{
		return self::$data;
	}
}