<?php

/**
* Copyright 2009, 2010 AEGEE-Europe
*
* This file is part of AEGEE-Europe Online Membership System.
*
* AEGEE-Europe Online Membership System 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.
*
* AEGEE-Europe Online Membership System 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 AEGEE-Europe Online Membership System.  If not, see
* <http://www.gnu.org/licenses/>.
*/


/**
* This file includes helper classes and functions for CIA Editor (create_proposal3.php)
*/
include(FILESYSTEMROOTPATH.'jc/include/classes/AbstractForm2.php');

class ProposalsForm extends AbstractForm2 {
	private $proposals_sentencesService;
	private $ciaService;
	private $url;
	
	public function __construct(Layout $layout, IModel $model, $name, $proposals_sentencesService , $url, $ciaService) {
		parent::__construct($layout, $model, $name, array("Save", "Reset","Delete","New ^", "New v" ));
		$this->proposals_sentencesService = $proposals_sentencesService;
		$this->ciaService = $ciaService;
		$this->url = $url;
	}

	public function save(IModel $model) {
		//in AbstractForm2->diplay is checked if this this form is submitted or not
		if (isset($_POST['Save'])){
			//$this->layout->echoln(var_dump($model));
			if( isset($_POST['header'])){ // header change
				$this->proposals_sentencesService->saveHeader($model,$_POST['header']);
			}
			else{
				//$model->setChange_type('Edit'); if is del-> can't save. if new: remains new
				if( $this->proposals_sentencesService->saveOrUpdate($model) ) {
					//ok
				}else {
					$this->layout->echoln("Failed saving Proposal.");
					return;
				}
			}	
		}
		elseif (isset($_POST['Reset'])){

			if ($model->getId()!= NULL){ //reset was pressed on an edited item
				
				if(isset($_POST['header'])){
					if ($model->getChange_type()=='New_^' || $model->getChange_type()=='New_v'){
						//if new, we empty the text. we could delete, but it can be done with 'delete'
						if ($_POST['header'] == 'paragraph'){
							return;
						}
						$setter = 'set'.ucfirst($_POST['header']);
						$model->$setter('');
						$this->proposals_sentencesService->saveOrUpdate($model);
						return; 
					}
					
					$original = $this->ciaService->load($model->getSentence_id());
					$this->proposals_sentencesService->resetHeader($model, $_POST['header'], $original) ;
				}
				else{
				
					if ($model->getChange_type()!='Edit'){ // Delete || New ^ || New v
						$this->proposals_sentencesService->undo_number($model);
					}
					
					if ($model->getChange_type()=='Edit' || $model->getChange_type()=='Delete'){
						$original = $this->ciaService->load($model->getSentence_id());
						$model->setSentence_text($original['sentence_text']);
						if ($model->ismodified(new CIA($original)) ){
							$this->proposals_sentencesService->saveOrUpdate($model);
						}
						else{
							$this->proposals_sentencesService->delete($model->getId());
						}	
					}
					else{ //New ^ || New v
						$this->proposals_sentencesService->delete($model->getId());
					}
					//no error message
				}
			}
			// else 'reset' pressed on non-edited item
		}
		elseif (isset($_POST['Delete'])){
			if(isset($_POST['header'])){
				$this->proposals_sentencesService->deleteHeader($model,$_POST['header']);
			}
			else{
				if ($model->getChange_type()=='New_^' || $model->getChange_type()=='New_v'){
					$model->setChange_type('Delete');
					$this->proposals_sentencesService->renumber($model);
					$this->proposals_sentencesService->delete($model->getId());				
				}
				else			
					$model->setChange_type('Delete');
					$model->setSentence_text('');
	
					$this->proposals_sentencesService->renumber($model);
					if( $this->proposals_sentencesService->saveOrUpdate($model) ) {
						//ok
					}
					//no error action
				}
		}
		elseif (isset($_POST['New_^'])){
			if(isset($_POST['header'])){
				$this->proposals_sentencesService->header_before($model, $_POST['header']);
			}
			else{
				//insert before

				$new_model = new Proposals_sentences('');
				$new_model->copy_from_cia($model); //to copy headers from previous sentence
				$new_model->setProposal_id($model->getProposal_id());
				$new_model->setSentence_text('');
				$new_model->setSentence_id($model->getSentence_id());
				$new_model->setChange_type('New_^');
				$new_model->setId('');

				$this->proposals_sentencesService->renumber($new_model);
				if( $this->proposals_sentencesService->saveOrUpdate($new_model) ) {
					//empty sentence created
				}
			}
		}
		elseif (isset($_POST['New_v'])){
			//insert after
			if(isset($_POST['header'])){
				$this->proposals_sentencesService->header_after($model, $_POST['header']);
			}
			else{
				$new_model = new Proposals_sentences('');
				$new_model->copy_from_cia($model); //to copy headers from previous sentence
				$new_model->setProposal_id($model->getProposal_id());
				$new_model->setSentence_text('');
				$new_model->setChange_type('New_v');
				$new_model->setSentence_id($model->getSentence_id());
				$new_model->setId('');
				$new_model->setSentence($new_model->getSentence()+1);

				$this->proposals_sentencesService->renumber($new_model);
				if( $this->proposals_sentencesService->saveOrUpdate($new_model) ) {
					//empty sentence created
				}
			}
		}
		//reload all page
		//set focus in posted form
		$fform = $_POST['form'];
		if(isset($_POST['header'])){
			$ffield = $_POST['header'];
		}else{
			$ffield = 'sentence_text';
		}
		//if para button pressed, move to text below it
		if($ffield =='paragraph'){
			$fform = 'id'.(1+substr($_POST['form'],2));
			$ffield = 'sentence_text';
		}
		
		$this->url .= '&fform='.$fform.'&ffield='.$ffield;
		$this->layout->redirect($this->url);

	}
}

class TextField_onkeyup extends TextField {
	var $onkeyup;
	var $id;
	var $style;

	public function __construct($name, $title, $size=-1, $id, $onkeyup, $style) {
		parent::__construct($name, $title);
		$this->size = $size;
		$this->onkeyup=$onkeyup;
		$this->id=$id;
		$this->style=$style;
	}

	public function getField() {

		return "<input type=\"text\" id=\"".$this->id."\" name=\"".$this->name."\" ".($this->size>0?" size=\"".$this->size."\"":"")." value=\"".$this->value."\"".($this->class!=NULL?" class=\"".$this->class."\"":"").($this->readonly?" readonly":"")." onkeyup=\"".$this->onkeyup."\" style=\"".$this->style."\" onclick=\"show_area('".$this->id."_buttons')\">";

	}
}

class TextArea_onkeyup extends TextAreaField {
	var $onkeyup;
	var $id;

	public function __construct($name, $title, $rows=2, $columns=80, $id, $onkeyup) {
		parent::__construct($name, $title, $rows, $columns);
		$this->onkeyup=$onkeyup;
		$this->id=$id;
	}

	public function getField() {

		return "<textarea id=\"".$this->id."\" name=\"".$this->name."\" "." rows=\"".$this->rows."\" cols =\"".$this->columns."\"".($this->class!=NULL?" class=\"".$this->class."\"":"").($this->readonly?" readonly":"")." onkeyup=\"".$this->onkeyup."\" onclick=\"show_area('".$this->id."_buttons')\">".$this->value."</textarea>";


	}
}
/**
 * End of helper classes
 */

/**
* functions
*/
function Area($layout, $model, $psService, $ciaService, $lines, $original, $previous, $show_comments){
	$lines = headers($model, $previous, $lines, $layout, $psService, $ciaService, $original);
	$form = new Proposalsform($layout, $model, 'id'.$lines, $psService,'create_proposal3.php?proposal_id='.$model->getProposal_id().'&order='.$model->getOrder(), $ciaService);
	$form->setResetText('Cancel');
	$field = new TextArea_onkeyup('sentence_text', $model->getSentence(), 2, 80, 'id'.$lines.'1', 'displayTextDiff(\''.$model->getSentence_text().'\', \'id'.$lines.'1\', \'id'.$lines.'2\')');

	$ordered   = array("\r\n", "\n", "\r");
	$replace = '<br/>';
	
	//set correct buttons
	if($model->getChange_type()=='Delete'){
		$field->setReadOnly(true);
		$field->setClass('disabled');
		$form->setButtons(array('Reset'));
		$form->setResetText('');
	}elseif($model->getChange_type()=='New_^'){
		$form->setButtons(array('Save','Reset', 'Delete', 'New ^'));
	}elseif($model->getChange_type()=='New_v'){
		$form->setButtons(array('Save','Reset', 'Delete', 'New v'));
	}
	
	$form->addField($field);
	$form->addHiddenField(new HiddenField('form','id'.$lines));
	$form->addHiddenField(new HiddenField('order',$model->getOrder()));
	$form->addHiddenField(new HiddenField('proposal_id',$model->getProposal_id()));
	$layout->echoln('<tr><td>');
	$form->display();
	$layout->echoln('</td><td id="id'.$lines.'2">');
	if($original!=NULL){
		$layout->echoln('<sup><script>document.write(diffStringColour(\''.$original['sentence'].'\', \''.$model->getSentence().'\'));</script></sup> ');
		$layout->echoln('<script>document.write(diffStringColour(\''.addslashes(str_replace($ordered,$replace,$original['sentence_text'])).'\', \''.addslashes(str_replace($ordered,$replace,$model->getSentence_text())).'\'));</script>');
	}
	
	$layout->echoln('</td></tr>');
	$lines++;
	
	if($show_comments && $model->getJc_comment()!=''){
		$layout->echoln('<tr><td></td><td style="color:blue;">JC Comment:'.$model->getJc_comment().'</td></tr>');
		//no need to count a line, no form in this line
	}
	
	return $lines;
}

//form to edit header items [title, title2, article, paragraph]
function Field($layout, $model, $psService, $ciaService, $lines, $name, $original){

	$form = new Proposalsform($layout, $model, 'id'.$lines, $psService,'create_proposal3.php?proposal_id='.$model->getProposal_id().'&order='.$model->getOrder(),$ciaService);
	$form->setResetText('Cancel');
	$getter='get'.ucfirst($name);
	$getter2 = $getter.'_status';	
	
	if($original == NULL){
		$original['article'] = $model->getArticle();
		$original['paragraph'] = $model->getParagraph();
	}
	
	
	//set buttons
	if($name == 'title'){
		$style = 'font-size:large;font-weight:bold;';
		$title = 'Title ';
		$form->setButtons(array('Save','Reset', 'Delete'));
		$diff = '<span style="'.$style.'">';
	}
	elseif($name == 'title2'){
		$style = 'font-size:large;font-weight:bold;';
		$title = '<br />Title2 ';
		$diff = '<br /><span style="'.$style.'">';
	}
	elseif($name == 'article_title'){
		$style = 'font-weight:bold;';
		$title = '<br /><b>Article '.$model->getArticle().':</b>';
		$diff = '<br /><b>Article '.php_diff($original['article'] ,$model->getArticle()).':</b><span style="'.$style.'">';
	}
	elseif($name == 'paragraph'){
		$style = 'display:none;';
		$title = 'Paragraph ('.$model->getParagraph().')';
		$diff = 'Paragraph (';
		$form->setButtons(array('Delete', 'New ^', 'New v'));
		$form->setResetText('');
	}
	
	$field = new TextField_onkeyup($name, $title, 40, 'id'.$lines.'1', 'displayTextDiff(\''.$model->$getter().'\', \'id'.$lines.'1\', \'id'.$lines.'2\')',$style);

	
	if($model->$getter2()=='Delete'){
		$field->setReadOnly(true);
		$field->setClass('disabled');
		$form->setButtons(array('Reset'));
		$form->setResetText('');
		$diff .= php_diff($original[$name], '').'</span>';
	}elseif($model->$getter2()=='New_^'){
		$form->unsetButton('New v');
		$diff .= php_diff('', $model->$getter()).'</span>';
	}elseif($model->$getter2()=='New_v'){
		$form->unsetButton('New ^');
		$diff .= php_diff('', $model->$getter()).'</span>';
	}elseif($model->$getter2()=='Edit'){
		$old=$original[$name];
		$diff .= php_diff($original[$name], $model->$getter()).'</span>';
		//$diff = $title.' <span style="'.$style.'"><script>document.write(diffStringColour(\''.$original[$name].'\', \''.$model->$getter().'\'));</script></span>';
	}else{
		//no change
		$diff = '';
	}

	if($name == 'paragraph'){
		$field->setReadOnly(true);
		$field->setClass('disabled');
		if ($diff!=''){
			$diff .= ')';
		}
	}
	
	$form->addField($field);
	$form->addHiddenField(new HiddenField('form','id'.$lines));
	$form->addHiddenField(new HiddenField('order',$model->getOrder()));
	$form->addHiddenField(new HiddenField('proposal_id',$model->getProposal_id()));
	$form->addHiddenField(new HiddenField('header',$name));
	$layout->echoln('<tr><td>');
	$form->display();
	$layout->echoln('</td><td id="id'.$lines.'2">'.$diff.'</td></tr>');

}

function headers($current, $previous, $lines, $layout, $proposals_sentencesService, $ciaService, $original){
	// if this item has different number than its previous, we have moved to next section
	//status check: if an item is deleted, its next has same number!
	if ( $current->getOrder2() != $previous->getOrder2() || $current->getTitle2_status()!= $previous->getTitle2_status())
	{
		
		$header = new Proposals_sentences('');
		$header->copy($current);

		//we have moved to next 'title2' section
		Field($layout, $header, $proposals_sentencesService, $ciaService , $lines, "title2", $original);
		$lines++;
		//we have moved to next article
		Field($layout, $header, $proposals_sentencesService, $ciaService , $lines, "article_title" ,$original);
		$lines++;
		//we have moved to next paragraph
		Field($layout, $header, $proposals_sentencesService, $ciaService , $lines, "paragraph", $original);
		$lines++;
	}
	elseif ( $current->getArticle() != $previous->getArticle() || $current->getArticle_title() != $previous->getArticle_title() || $current->getArticle_Title_status()!= $previous->getArticle_Title_status())
	{
		$header = new Proposals_sentences('');
		$header->copy($current);
		
		//we have moved to next article
		Field($layout, $header, $proposals_sentencesService, $ciaService , $lines, "article_title", $original);
		$lines++;
		//we have moved to next paragraph
		Field($layout, $header, $proposals_sentencesService, $ciaService , $lines, "paragraph", $original);
		$lines++;
	}
	elseif ($current->getParagraph() != $previous->getParagraph() || $current->getParagraph_status()!= $previous->getParagraph_status())
	{
		$header = new Proposals_sentences('');
		$header->copy($current);
		
		//we have moved to next paragraph
		Field($layout, $header, $proposals_sentencesService, $ciaService , $lines, "paragraph", $original);
		$lines++;
	}

	return $lines;
}

function php_diff($old, $new){
	return '<script>document.write(diffStringColour(\''.$old.'\', \''.$new.'\'));</script>';
}

/**
 * end of functions
 */
	?>