<?php

/**
 * Contao Open Source CMS
 *
 * Copyright (c) 2005-2016 Leo Feyer
 *
 * @license LGPL-3.0+
 */


/**
 * Load tl_content language file
 */
System::loadLanguageFile('tl_content');


/**
 * Table tl_faq
 */
$GLOBALS['TL_DCA']['tl_faq'] = array
(

	// Config
	'config' => array
	(
		'dataContainer'               => 'Table',
		'ptable'                      => 'tl_faq_category',
		'enableVersioning'            => true,
		'onload_callback' => array
		(
			array('tl_faq', 'checkPermission')
		),
		'sql' => array
		(
			'keys' => array
			(
				'id' => 'primary',
				'pid,published,sorting' => 'index'
			)
		)
	),

	// List
	'list' => array
	(
		'sorting' => array
		(
			'mode'                    => 4,
			'fields'                  => array('sorting'),
			'panelLayout'             => 'filter;sort,search,limit',
			'headerFields'            => array('title', 'headline', 'jumpTo', 'tstamp', 'allowComments'),
			'child_record_callback'   => array('tl_faq', 'listQuestions')
		),
		'global_operations' => array
		(
			'all' => array
			(
				'label'               => &$GLOBALS['TL_LANG']['MSC']['all'],
				'href'                => 'act=select',
				'class'               => 'header_edit_all',
				'attributes'          => 'onclick="Backend.getScrollOffset()" accesskey="e"'
			)
		),
		'operations' => array
		(
			'edit' => array
			(
				'label'               => &$GLOBALS['TL_LANG']['tl_faq']['edit'],
				'href'                => 'act=edit',
				'icon'                => 'edit.gif'
			),
			'copy' => array
			(
				'label'               => &$GLOBALS['TL_LANG']['tl_faq']['copy'],
				'href'                => 'act=paste&amp;mode=copy',
				'icon'                => 'copy.gif'
			),
			'cut' => array
			(
				'label'               => &$GLOBALS['TL_LANG']['tl_faq']['cut'],
				'href'                => 'act=paste&amp;mode=cut',
				'icon'                => 'cut.gif'
			),
			'delete' => array
			(
				'label'               => &$GLOBALS['TL_LANG']['tl_faq']['delete'],
				'href'                => 'act=delete',
				'icon'                => 'delete.gif',
				'attributes'          => 'onclick="if(!confirm(\'' . $GLOBALS['TL_LANG']['MSC']['deleteConfirm'] . '\'))return false;Backend.getScrollOffset()"'
			),
			'toggle' => array
			(
				'label'               => &$GLOBALS['TL_LANG']['tl_faq']['toggle'],
				'icon'                => 'visible.gif',
				'attributes'          => 'onclick="Backend.getScrollOffset();return AjaxRequest.toggleVisibility(this,%s)"',
				'button_callback'     => array('tl_faq', 'toggleIcon')
			),
			'show' => array
			(
				'label'               => &$GLOBALS['TL_LANG']['tl_faq']['show'],
				'href'                => 'act=show',
				'icon'                => 'show.gif'
			)
		)
	),

	// Palettes
	'palettes' => array
	(
		'__selector__'                => array('addImage', 'addEnclosure'),
		'default'                     => '{title_legend},question,alias,author;{answer_legend},answer;{image_legend},addImage;{enclosure_legend:hide},addEnclosure;{expert_legend:hide},noComments;{publish_legend},published'
	),

	// Subpalettes
	'subpalettes' => array
	(
		'addImage'                    => 'singleSRC,alt,size,imagemargin,imageUrl,fullsize,caption,floating',
		'addEnclosure'                => 'enclosure'
	),

	// Fields
	'fields' => array
	(
		'id' => array
		(
			'sql'                     => "int(10) unsigned NOT NULL auto_increment"
		),
		'pid' => array
		(
			'foreignKey'              => 'tl_faq_category.title',
			'sql'                     => "int(10) unsigned NOT NULL default '0'",
			'relation'                => array('type'=>'belongsTo', 'load'=>'eager')
		),
		'sorting' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['MSC']['sorting'],
			'sorting'                 => true,
			'flag'                    => 11,
			'sql'                     => "int(10) unsigned NOT NULL default '0'"
		),
		'tstamp' => array
		(
			'sql'                     => "int(10) unsigned NOT NULL default '0'"
		),
		'question' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['question'],
			'exclude'                 => true,
			'search'                  => true,
			'sorting'                 => true,
			'flag'                    => 1,
			'inputType'               => 'text',
			'eval'                    => array('mandatory'=>true, 'maxlength'=>255),
			'sql'                     => "varchar(255) NOT NULL default ''"
		),
		'alias' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['alias'],
			'exclude'                 => true,
			'search'                  => true,
			'inputType'               => 'text',
			'eval'                    => array('rgxp'=>'alias', 'doNotCopy'=>true, 'unique'=>true, 'maxlength'=>128, 'tl_class'=>'w50'),
			'save_callback' => array
			(
				array('tl_faq', 'generateAlias')
			),
			'sql'                     => "varchar(128) COLLATE utf8_bin NOT NULL default ''"
		),
		'author' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['author'],
			'default'                 => BackendUser::getInstance()->id,
			'exclude'                 => true,
			'search'                  => true,
			'filter'                  => true,
			'sorting'                 => true,
			'flag'                    => 11,
			'inputType'               => 'select',
			'foreignKey'              => 'tl_user.name',
			'eval'                    => array('doNotCopy'=>true, 'chosen'=>true, 'mandatory'=>true, 'includeBlankOption'=>true, 'tl_class'=>'w50'),
			'sql'                     => "int(10) unsigned NOT NULL default '0'",
			'relation'                => array('type'=>'belongsTo', 'load'=>'eager')
		),
		'answer' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['answer'],
			'exclude'                 => true,
			'search'                  => true,
			'inputType'               => 'textarea',
			'eval'                    => array('mandatory'=>true, 'rte'=>'tinyMCE', 'helpwizard'=>true),
			'explanation'             => 'insertTags',
			'sql'                     => "text NULL"
		),
		'addImage' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['addImage'],
			'exclude'                 => true,
			'filter'                  => true,
			'inputType'               => 'checkbox',
			'eval'                    => array('submitOnChange'=>true),
			'sql'                     => "char(1) NOT NULL default ''"
		),
		'singleSRC' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['singleSRC'],
			'exclude'                 => true,
			'inputType'               => 'fileTree',
			'eval'                    => array('filesOnly'=>true, 'extensions'=>Config::get('validImageTypes'), 'fieldType'=>'radio', 'mandatory'=>true),
			'save_callback' => array
			(
				array('tl_faq', 'storeFileMetaInformation')
			),
			'sql'                     => "binary(16) NULL"
		),
		'alt' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['alt'],
			'exclude'                 => true,
			'search'                  => true,
			'inputType'               => 'text',
			'eval'                    => array('maxlength'=>255, 'tl_class'=>'long'),
			'sql'                     => "varchar(255) NOT NULL default ''"
		),
		'size' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['size'],
			'exclude'                 => true,
			'inputType'               => 'imageSize',
			'options'                 => System::getImageSizes(),
			'reference'               => &$GLOBALS['TL_LANG']['MSC'],
			'eval'                    => array('rgxp'=>'natural', 'includeBlankOption'=>true, 'nospace'=>true, 'helpwizard'=>true, 'tl_class'=>'w50'),
			'sql'                     => "varchar(64) NOT NULL default ''"
		),
		'imagemargin' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['imagemargin'],
			'exclude'                 => true,
			'inputType'               => 'trbl',
			'options'                 => $GLOBALS['TL_CSS_UNITS'],
			'eval'                    => array('includeBlankOption'=>true, 'tl_class'=>'w50'),
			'sql'                     => "varchar(128) NOT NULL default ''"
		),
		'imageUrl' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['imageUrl'],
			'exclude'                 => true,
			'search'                  => true,
			'inputType'               => 'text',
			'eval'                    => array('rgxp'=>'url', 'decodeEntities'=>true, 'maxlength'=>255, 'fieldType'=>'radio', 'filesOnly'=>true, 'tl_class'=>'w50 wizard'),
			'wizard' => array
			(
				array('tl_faq', 'pagePicker')
			),
			'sql'                     => "varchar(255) NOT NULL default ''"
		),
		'fullsize' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['fullsize'],
			'exclude'                 => true,
			'inputType'               => 'checkbox',
			'eval'                    => array('tl_class'=>'w50 m12'),
			'sql'                     => "char(1) NOT NULL default ''"
		),
		'caption' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['caption'],
			'exclude'                 => true,
			'search'                  => true,
			'inputType'               => 'text',
			'eval'                    => array('maxlength'=>255, 'allowHtml'=>true, 'tl_class'=>'w50'),
			'sql'                     => "varchar(255) NOT NULL default ''"
		),
		'floating' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_content']['floating'],
			'default'                 => 'above',
			'exclude'                 => true,
			'inputType'               => 'radioTable',
			'options'                 => array('above', 'left', 'right', 'below'),
			'eval'                    => array('cols'=>4, 'tl_class'=>'w50'),
			'reference'               => &$GLOBALS['TL_LANG']['MSC'],
			'sql'                     => "varchar(12) NOT NULL default ''"
		),
		'addEnclosure' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['addEnclosure'],
			'exclude'                 => true,
			'filter'                  => true,
			'inputType'               => 'checkbox',
			'eval'                    => array('submitOnChange'=>true),
			'sql'                     => "char(1) NOT NULL default ''"
		),
		'enclosure' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['enclosure'],
			'exclude'                 => true,
			'inputType'               => 'fileTree',
			'eval'                    => array('multiple'=>true, 'fieldType'=>'checkbox', 'filesOnly'=>true, 'isDownloads'=>true, 'extensions'=>Config::get('allowedDownload'), 'mandatory'=>true),
			'sql'                     => "blob NULL"
		),
		'noComments' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['noComments'],
			'exclude'                 => true,
			'filter'                  => true,
			'inputType'               => 'checkbox',
			'sql'                     => "char(1) NOT NULL default ''"
		),
		'published' => array
		(
			'label'                   => &$GLOBALS['TL_LANG']['tl_faq']['published'],
			'exclude'                 => true,
			'filter'                  => true,
			'flag'                    => 2,
			'inputType'               => 'checkbox',
			'eval'                    => array('doNotCopy'=>true),
			'sql'                     => "char(1) NOT NULL default ''"
		)
	)
);


/**
 * Provide miscellaneous methods that are used by the data configuration array.
 *
 * @author Leo Feyer <https://github.com/leofeyer>
 */
class tl_faq extends Backend
{

	/**
	 * Import the back end user object
	 */
	public function __construct()
	{
		parent::__construct();
		$this->import('BackendUser', 'User');
	}


	/**
	 * Check permissions to edit table tl_faq
	 */
	public function checkPermission()
	{
		// HOOK: comments extension required
		if (!in_array('comments', ModuleLoader::getActive()))
		{
			$key = array_search('allowComments', $GLOBALS['TL_DCA']['tl_faq']['list']['sorting']['headerFields']);
			unset($GLOBALS['TL_DCA']['tl_faq']['list']['sorting']['headerFields'][$key]);
		}
	}


	/**
	 * Auto-generate the FAQ alias if it has not been set yet
	 *
	 * @param mixed         $varValue
	 * @param DataContainer $dc
	 *
	 * @return mixed
	 *
	 * @throws Exception
	 */
	public function generateAlias($varValue, DataContainer $dc)
	{
		$autoAlias = false;

		// Generate alias if there is none
		if ($varValue == '')
		{
			$autoAlias = true;
			$varValue = StringUtil::generateAlias($dc->activeRecord->question);
		}

		$objAlias = $this->Database->prepare("SELECT id FROM tl_faq WHERE alias=?")
								   ->execute($varValue);

		// Check whether the news alias exists
		if ($objAlias->numRows > 1 && !$autoAlias)
		{
			throw new Exception(sprintf($GLOBALS['TL_LANG']['ERR']['aliasExists'], $varValue));
		}

		// Add ID to alias
		if ($objAlias->numRows && $autoAlias)
		{
			$varValue .= '-' . $dc->id;
		}

		return $varValue;
	}


	/**
	 * Add the type of input field
	 *
	 * @param array $arrRow
	 *
	 * @return string
	 */
	public function listQuestions($arrRow)
	{
		$key = $arrRow['published'] ? 'published' : 'unpublished';
		$date = Date::parse(Config::get('datimFormat'), $arrRow['tstamp']);

		return '
<div class="cte_type ' . $key . '"><strong>' . $arrRow['question'] . '</strong> - ' . $date . '</div>
<div class="limit_height' . (!Config::get('doNotCollapse') ? ' h52' : '') . '">
' . StringUtil::insertTagToSrc($arrRow['answer']) . '
</div>' . "\n";
	}


	/**
	 * Return the link picker wizard
	 *
	 * @param DataContainer $dc
	 *
	 * @return string
	 */
	public function pagePicker(DataContainer $dc)
	{
		return ' <a href="' . (($dc->value == '' || strpos($dc->value, '{{link_url::') !== false) ? 'contao/page.php' : 'contao/file.php') . '?do=' . Input::get('do') . '&amp;table=' . $dc->table . '&amp;field=' . $dc->field . '&amp;value=' . rawurlencode(str_replace(array('{{link_url::', '}}'), '', $dc->value)) . '&amp;switch=1' . '" title="' . specialchars($GLOBALS['TL_LANG']['MSC']['pagepicker']) . '" onclick="Backend.getScrollOffset();Backend.openModalSelector({\'width\':768,\'title\':\'' . specialchars(str_replace("'", "\\'", $GLOBALS['TL_DCA'][$dc->table]['fields'][$dc->field]['label'][0])) . '\',\'url\':this.href,\'id\':\'' . $dc->field . '\',\'tag\':\'ctrl_'. $dc->field . ((Input::get('act') == 'editAll') ? '_' . $dc->id : '') . '\',\'self\':this});return false">' . Image::getHtml('pickpage.gif', $GLOBALS['TL_LANG']['MSC']['pagepicker'], 'style="vertical-align:top;cursor:pointer"') . '</a>';
	}


	/**
	 * Pre-fill the "alt" and "caption" fields with the file meta data
	 *
	 * @param mixed         $varValue
	 * @param DataContainer $dc
	 *
	 * @return mixed
	 */
	public function storeFileMetaInformation($varValue, DataContainer $dc)
	{
		if ($dc->activeRecord->singleSRC != $varValue)
		{
			$this->addFileMetaInformationToRequest($varValue, 'tl_faq_category', $dc->activeRecord->pid);
		}

		return $varValue;
	}


	/**
	 * Return the "toggle visibility" button
	 *
	 * @param array  $row
	 * @param string $href
	 * @param string $label
	 * @param string $title
	 * @param string $icon
	 * @param string $attributes
	 *
	 * @return string
	 */
	public function toggleIcon($row, $href, $label, $title, $icon, $attributes)
	{
		if (strlen(Input::get('tid')))
		{
			$this->toggleVisibility(Input::get('tid'), (Input::get('state') == 1), (@func_get_arg(12) ?: null));
			$this->redirect($this->getReferer());
		}

		// Check permissions AFTER checking the tid, so hacking attempts are logged
		if (!$this->User->hasAccess('tl_faq::published', 'alexf'))
		{
			return '';
		}

		$href .= '&amp;tid='.$row['id'].'&amp;state='.($row['published'] ? '' : 1);

		if (!$row['published'])
		{
			$icon = 'invisible.gif';
		}

		return '<a href="'.$this->addToUrl($href).'" title="'.specialchars($title).'"'.$attributes.'>'.Image::getHtml($icon, $label, 'data-state="' . ($row['published'] ? 1 : 0) . '"').'</a> ';
	}


	/**
	 * Disable/enable a user group
	 *
	 * @param integer       $intId
	 * @param boolean       $blnVisible
	 * @param DataContainer $dc
	 */
	public function toggleVisibility($intId, $blnVisible, DataContainer $dc=null)
	{
		// Set the ID and action
		Input::setGet('id', $intId);
		Input::setGet('act', 'toggle');

		if ($dc)
		{
			$dc->id = $intId; // see #8043
		}

		$this->checkPermission();

		// Check the field access
		if (!$this->User->hasAccess('tl_faq::published', 'alexf'))
		{
			$this->log('Not enough permissions to publish/unpublish FAQ ID "'.$intId.'"', __METHOD__, TL_ERROR);
			$this->redirect('contao/main.php?act=error');
		}

		$objVersions = new Versions('tl_faq', $intId);
		$objVersions->initialize();

		// Trigger the save_callback
		if (is_array($GLOBALS['TL_DCA']['tl_faq']['fields']['published']['save_callback']))
		{
			foreach ($GLOBALS['TL_DCA']['tl_faq']['fields']['published']['save_callback'] as $callback)
			{
				if (is_array($callback))
				{
					$this->import($callback[0]);
					$blnVisible = $this->{$callback[0]}->{$callback[1]}($blnVisible, ($dc ?: $this));
				}
				elseif (is_callable($callback))
				{
					$blnVisible = $callback($blnVisible, ($dc ?: $this));
				}
			}
		}

		// Update the database
		$this->Database->prepare("UPDATE tl_faq SET tstamp=". time() .", published='" . ($blnVisible ? '1' : '') . "' WHERE id=?")
					   ->execute($intId);

		$objVersions->create();
	}
}
