<?php
// Classes and libraries for module system
//
// webtrees: Web based Family History software
// Copyright (C) 2011 webtrees development team.
//
// Derived from PhpGedView
// Copyright (C) 2010 John Finlay
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// $Id$

if (!defined('WT_WEBTREES')) {
	header('HTTP/1.0 403 Forbidden');
	exit;
}

class stories_WT_Module extends WT_Module implements WT_Module_Block, WT_Module_Tab, WT_Module_Config, WT_Module_Menu {
	// Extend class WT_Module
	public function getTitle() {
		return /* I18N: Name of a module */ WT_I18N::translate('Stories');
	}

	// Extend class WT_Module
	public function getDescription() {
		return /* I18N: Description of the "Stories" module */ WT_I18N::translate('Add narrative stories to individuals in the family tree.');
	}

	// Extend WT_Module
	public function modAction($mod_action) {
		switch($mod_action) {
		case 'admin_edit':
			$this->edit();
			break;
		case 'admin_delete':
			$this->delete();
			$this->config();
			break;
		case 'admin_config':
			$this->config();
			break;
		case 'show_list':
			$this->show_list();
			break;
		default:
			header('HTTP/1.0 404 Not Found');
		}
	}

	// Implement WT_Module_Config
	public function getConfigLink() {
		return 'module.php?mod='.$this->getName().'&amp;mod_action=admin_config';
	}

	// Implement class WT_Module_Block
	public function getBlock($block_id, $template=true, $cfg=null) {
	}

	// Implement class WT_Module_Block
	public function loadAjax() {
		return false;
	}

	// Implement class WT_Module_Block
	public function isUserBlock() {
		return false;
	}

	// Implement class WT_Module_Block
	public function isGedcomBlock() {
		return false;
	}

	// Implement class WT_Module_Block
	public function configureBlock($block_id) {
	}

	// Implement class WT_Module_Tab
	public function defaultTabOrder() {
		return 55;
	}

	// Implement class WT_Module_Tab
	public function getTabContent() {
		$block_ids=
			WT_DB::prepare(
				"SELECT block_id".
				" FROM `##block`".
				" WHERE module_name=?".
				" AND xref=?".
				" AND gedcom_id=?"
			)->execute(array(
				$this->getName(),
				$xref=$this->controller->indi->getXref(),
				WT_GED_ID
			))->fetchOneColumn();

		$html='';
		foreach ($block_ids as $block_id) {
			// Only show this block for certain languages
			$languages=get_block_setting($block_id, 'languages');
			if (!$languages || in_array(WT_LOCALE, explode(',', $languages))) {
				$html.='<div class="news_title center">'.get_block_setting($block_id, 'title').'</div>';
				$html.='<div>'.get_block_setting($block_id, 'story_body').'</div><br />';
				if (WT_USER_CAN_EDIT) {
					$html.='<div><a href="module.php?mod='.$this->getName().'&amp;mod_action=admin_edit&amp;block_id='.$block_id.'">';
					$html.=WT_I18N::translate('Edit story').'</a></div><br />';
				}
			}
		}
		if (WT_USER_GEDCOM_ADMIN && !$html) {
			$html.='<div class="news_title center">'.$this->getTitle().'</div>';
			$html.='<div><a href="module.php?mod='.$this->getName().'&amp;mod_action=admin_edit&amp;xref='.$this->controller->indi->getXref().'">';
			$html.=WT_I18N::translate('Add story').'</a>'.help_link('add_story', $this->getName()).'</div><br />';
		}
		return $html;
	}

	// Implement class WT_Module_Tab
	public function hasTabContent() {
		return $this->getTabContent() <> '';
	}

	// Implement WT_Module_Tab
	public function isGrayedOut() {
		$count_of_stories=
			WT_DB::prepare(
				"SELECT COUNT(block_id)".
				" FROM `##block`".
				" WHERE module_name=?".
				" AND xref=?".
				" AND gedcom_id=?"
			)->execute(array(
				$this->getName(),
				$xref=$this->controller->indi->getXref(),
				WT_GED_ID
			))->fetchOne();
			
		return $count_of_stories==0;
	}
	
	// Implement class WT_Module_Tab
	public function canLoadAjax() {
		return false;
	}

	// Implement class WT_Module_Tab
	public function getPreLoadContent() {
		return '';
	}

	// Implement class WT_Module_Tab
	public function getJSCallback() {
		return '';
	}

	// Action from the configuration page
	private function edit() {
		global $TEXT_DIRECTION, $ENABLE_AUTOCOMPLETE;

		require_once WT_ROOT.'includes/functions/functions_edit.php';
		if (WT_USER_CAN_EDIT) {

			if (safe_POST_bool('save')) {
				$block_id=safe_POST('block_id');
				if ($block_id) {
					WT_DB::prepare(
						"UPDATE `##block` SET gedcom_id=?, xref=? WHERE block_id=?"
					)->execute(array(safe_POST('gedcom_id'), safe_POST('xref'), $block_id));
				} else {
					WT_DB::prepare(
						"INSERT INTO `##block` (gedcom_id, xref, module_name, block_order) VALUES (?, ?, ?, ?)"
					)->execute(array(
						safe_POST('gedcom_id', array_keys(get_all_gedcoms())),
						safe_POST('xref'),
						$this->getName(),
						0
					));
					$block_id=WT_DB::getInstance()->lastInsertId();
				}
				set_block_setting($block_id, 'title', safe_POST('title', WT_REGEX_UNSAFE)); // allow html
				set_block_setting($block_id, 'story_body',  safe_POST('story_body', WT_REGEX_UNSAFE)); // allow html
				$languages=array();
				foreach (WT_I18N::installed_languages() as $code=>$name) {
					if (safe_POST_bool('lang_'.$code)) {
						$languages[]=$code;
					}
				}
				set_block_setting($block_id, 'languages', implode(',', $languages));
				$this->config();
			} else {
				$block_id=safe_GET('block_id');
				if ($block_id) {
					print_header(WT_I18N::translate('Edit story'));
					$title=get_block_setting($block_id, 'title');
					$story_body=get_block_setting($block_id, 'story_body');
					$gedcom_id=WT_DB::prepare(
						"SELECT gedcom_id FROM `##block` WHERE block_id=?"
					)->execute(array($block_id))->fetchOne();
					$xref=WT_DB::prepare(
						"SELECT xref FROM `##block` WHERE block_id=?"
					)->execute(array($block_id))->fetchOne();
				} else {
					print_header(WT_I18N::translate('Add story'));
					$title='';
					$story_body='';
					$gedcom_id=WT_GED_ID;
					$xref=safe_GET('xref', WT_REGEX_XREF);
				}
				?>
				<script type="text/javascript">
					var pastefield;
					function paste_id(value) {
						pastefield.value=value;
					}
				</script>
				<?php
				if ($ENABLE_AUTOCOMPLETE) {
					require WT_ROOT.'/js/autocomplete.js.htm';
				}
				// "Help for this page" link
				echo '<div id="page_help">', help_link('add_story', $this->getName()), '</div>';
				echo '<form name="story" method="post" action="#">';
				echo '<input type="hidden" name="save" value="1" />';
				echo '<input type="hidden" name="block_id" value="', $block_id, '" />';
				echo '<input type="hidden" name="gedcom_id" value="', WT_GED_ID, '" />';
				echo '<table id="story_module">';
				echo '<tr><th>';
				echo WT_I18N::translate('Story title'), help_link('story_title', $this->getName());
				echo '</th></tr><tr><td><textarea name="title" rows="1" cols="90" tabindex="2">', htmlspecialchars($title), '</textarea></td></tr>';
				echo '<tr><th>';
				echo WT_I18N::translate('Story'), help_link('add_story', $this->getName());
				echo '</th></tr><tr><td>';
				if (array_key_exists('ckeditor', WT_Module::getActiveModules())) {
				// use CKeditor module
					require_once WT_ROOT.WT_MODULES_DIR.'ckeditor/ckeditor.php';
					$oCKeditor = new CKEditor();
					$oCKeditor->basePath =  WT_MODULES_DIR.'ckeditor/';
					$oCKeditor->config['width'] = 900;
					$oCKeditor->config['height'] = 400;
					$oCKeditor->config['AutoDetectLanguage'] = false ;
					$oCKeditor->config['DefaultLanguage'] = 'en';
					$oCKeditor->editor('story_body', $story_body);
				} else {
				//use standard textarea
					echo '<textarea name="story_body" rows="10" cols="90" tabindex="2">', htmlspecialchars($story_body), '</textarea>';
				}
				echo '</td></tr>';
				echo '</table><table id="story_module2">';
				echo '<tr>';
				echo '<th>', WT_I18N::translate('Individual'), '</th>';
				echo '<th>', WT_I18N::translate('Show this block for which languages?'), '</th>';
				echo '</tr>';
				echo '<tr>';
				echo '<td class="optionbox ', $TEXT_DIRECTION, '">';
				echo '<input type="text" name="xref" id="pid" size="4" value="'.$xref.'" />';
				print_findindi_link("pid", "xref");
				if ($xref) {
					$person=WT_Person::getInstance($xref);
					if ($person) {
						echo ' ', $person->format_list('span');
					}
				}
				echo '</td>';
				$languages=get_block_setting($block_id, 'languages');
				echo '<td class="optionbox ', $TEXT_DIRECTION, '">';
				echo edit_language_checkboxes('lang_', $languages);
				echo '</td></tr></table>';
				echo '<p><input type="submit" value="', WT_I18N::translate('Save'), '" tabindex="5"/>';
				echo '&nbsp;<input type="button" value="', WT_I18N::translate('Cancel'), '" onclick="window.location=\''.$this->getConfigLink().'\';" tabindex="6" />';
				echo '</p>';
				echo '</form>';

				print_footer();
				exit;
			}
		} else {
			header('Location: '.WT_SERVER_NAME.WT_SCRIPT_PATH);
			exit;
		}
	}

	private function delete() {
		if (WT_USER_CAN_EDIT) {
			$block_id=safe_GET('block_id');

			$block_order=WT_DB::prepare(
				"SELECT block_order FROM `##block` WHERE block_id=?"
			)->execute(array($block_id))->fetchOne();

			WT_DB::prepare(
				"DELETE FROM `##block_setting` WHERE block_id=?"
			)->execute(array($block_id));

			WT_DB::prepare(
				"DELETE FROM `##block` WHERE block_id=?"
			)->execute(array($block_id));
		} else {
			header('Location: '.WT_SERVER_NAME.WT_SCRIPT_PATH);
			exit;
		}
	}

	private function config() {
		global $WT_IMAGES, $TEXT_DIRECTION;

		if (WT_USER_GEDCOM_ADMIN) {
			print_header($this->getTitle());

			$stories=WT_DB::prepare(
				"SELECT block_id, xref".
				" FROM `##block` b".
				" WHERE module_name=?".
				" AND gedcom_id=?".
				" ORDER BY xref"
			)->execute(array($this->getName(), WT_GED_ID))->fetchAll();

			echo '<table class="list_table">';
			echo '<tr><td class="list_label" colspan="4">';
			echo '<a href="module.php?mod=', $this->getName(), '&amp;mod_action=admin_edit">', WT_I18N::translate('Add story'), '</a>';
			echo help_link('add_story', $this->getName());
			echo '</td></tr>';
			if (count($stories)>0) {
				echo '<tr>
					<th class="list_label center width50">', WT_I18N::translate('Story title'), help_link('story_title', $this->getName()), '</th>
					<th class="list_label center width30">', WT_I18N::translate('Individual'), '</th>
					<th class="list_label center width10">', WT_I18N::translate('Edit story'), help_link('edit_story', $this->getName()), '</th>
					<th class="list_label center width10">', WT_I18N::translate('Delete'), help_link('delete_story', $this->getName()), '</th>
					</tr>';
			}
			foreach ($stories as $story) {
				$indi=WT_Person::getInstance($story->xref);
				if ($indi) {
					$name="<a href=\"".$indi->getHtmlUrl()."#stories\">".$indi->getFullName()."</a>";
				} else {
					$name=$story->xref;
				}
				echo '<tr>
					<td class="optionbox">',get_block_setting($story->block_id, 'title'), '</td>
					<td class="list_value_wrap">', $name, '</td>
					<td class="optionbox"><a href="module.php?mod=', $this->getName(), '&amp;mod_action=admin_edit&amp;block_id=', $story->block_id, '">', WT_I18N::translate('Edit'), '</a></td>
					<td class="optionbox"><a href="module.php?mod=', $this->getName(), '&amp;mod_action=admin_delete&amp;block_id=', $story->block_id, '" onclick="return confirm(\'', WT_I18N::translate('Are you sure you want to delete this story?'), '\');">', WT_I18N::translate('Delete'), '</a></td>
					</tr>';
			}
			echo '</table>';
			print_footer();
		} else {
			header('Location: '.WT_SERVER_NAME.WT_SCRIPT_PATH);
			exit;
		}
	}

	private function show_list() {
		global $WT_IMAGES, $TEXT_DIRECTION;

			print_header($this->getTitle());

			$stories=WT_DB::prepare(
				"SELECT block_id, xref".
				" FROM `##block` b".
				" WHERE module_name=?".
				" AND gedcom_id=?".
				" ORDER BY xref"
			)->execute(array($this->getName(), WT_GED_ID))->fetchAll();

			echo '<table class="list_table width90">';
			if (count($stories)>0) {
				echo '<tr>
					<th class="list_label">', WT_I18N::translate('Story title'), '</th>
					<th class="list_label">', WT_I18N::translate('Individual'), '</th>
					</tr>';
			}
			foreach ($stories as $story) {
				$indi=WT_Person::getInstance($story->xref);
				if ($indi) {
					$name="<a href=\"".$indi->getHtmlUrl()."#stories\">".$indi->getFullName()."</a>";
				} else {
					$name=$story->xref;
				}
				if ($indi->canDisplayDetails()) {
					echo '<tr>
						<td class="list_value">', get_block_setting($story->block_id, 'title'), '</td>
						<td class="list_value_wrap">', $name, '</td>
						</tr>';
				}
			}
			echo '</table>';
			print_footer();
	}

		// Implement WT_Module_Menu
		public function defaultMenuOrder() {
			return 30;
		}
		// Extend class WT_Module
		public function defaultAccessLevel() {
			return WT_PRIV_HIDE;
		}
		// Implement WT_Module_Menu
		public function getMenu() {
			global $SEARCH_SPIDER;
			if ($SEARCH_SPIDER) {
				return null;
			}
			//-- Stories menu item
			$menu = new WT_Menu($this->getTitle(), 'module.php?mod='.$this->getName().'&amp;mod_action=show_list', 'menu-story', 'down');
			$menu->addClass('menuitem', 'menuitem_hover', 'submenu', '');		
			$submenu = new WT_Menu($this->getTitle(), 'module.php?mod='.$this->getName().'&amp;mod_action=show_list', 'menu-story-sub');
			$submenu->addClass('submenuitem', 'submenuitem_hover', 'submenu', '');
			$menu->addSubmenu($submenu);
			return $menu;
		}

}
