<?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 recent_changes_WT_Module extends WT_Module implements WT_Module_Block {

	// Extend class WT_Module
	public function getTitle() {
		return /* I18N: Name of a module */ WT_I18N::translate('Recent changes');
	}

	// Extend class WT_Module
	public function getDescription() {
		return /* I18N: Description of the "Recent changes" module */ WT_I18N::translate('A list of records that have been updated recently.');
	}

	// Implement class WT_Module_Block
	public function getBlock($block_id, $template=true, $cfg=null) {
		global $ctype, $WT_IMAGES;

		require_once WT_ROOT.'includes/functions/functions_print_lists.php';

		$days = get_block_setting($block_id, 'days', 7);
		$infoStyle = get_block_setting($block_id, 'infoStyle', 'table');
		$show_parents = get_block_setting($block_id, 'show_parents', false);
		$sortStyle = get_block_setting($block_id, 'sortStyle', 'date_desc');
		$hide_empty = get_block_setting($block_id, 'hide_empty', false);
		$block = get_block_setting($block_id, 'block', true);
		if ($cfg) {
			foreach (array('days', 'infoStyle', 'show_parents', 'sortStyle', 'hide_empty', 'block') as $name) {
				if (array_key_exists($name, $cfg)) {
					$$name = $cfg[$name];
				}
			}
		}

		$found_facts = get_recent_changes(WT_CLIENT_JD - $days);

		if (!$found_facts && $hide_empty) {
			return '';
		}
		// Print block header
		$id = $this->getName() . $block_id;
		$title = '';
		if ($ctype == "gedcom" && WT_USER_GEDCOM_ADMIN || $ctype == 'user') {
			$title .= "<a href=\"javascript: configure block\" onclick=\"window.open('index_edit.php?action=configure&amp;ctype={$ctype}&amp;block_id={$block_id}', '_blank', 'top=50,left=50,width=600,height=350,scrollbars=1,resizable=1'); return false;\">";
			$title .= "<img class=\"adminicon\" src=\"" . $WT_IMAGES["admin"] . "\" width=\"15\" height=\"15\" border=\"0\" alt=\"" . WT_I18N::translate('Configure') . "\" /></a>";
		}
		$title.= /* I18N: title for list of recent changes */ WT_I18N::plural('Changes in the last %d day', 'Changes in the last %d days', $days, $days);
		$content = "";
		// Print block content
		if (count($found_facts) == 0) {
            $content .= WT_I18N::translate('There have been no changes within the last %s days.', $days);
		} else {
			ob_start();
			switch ($infoStyle) {
				case 'list':
					$content .= print_changes_list($found_facts, $sortStyle, $show_parents);
					break;
				case 'table':
					// sortable table
					$content .= print_changes_table($found_facts, $sortStyle, $show_parents);
					break;
			}
			$content .= ob_get_clean();
		}

		if ($template) {
			if ($block) {
				require WT_THEME_DIR . 'templates/block_small_temp.php';
			} else {
				require WT_THEME_DIR . 'templates/block_main_temp.php';
			}
		} else {
			return $content;
		}
	}

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

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

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

	// Implement class WT_Module_Block
	public function configureBlock($block_id) {
		if (safe_POST_bool('save')) {
			set_block_setting($block_id, 'days', safe_POST_integer('days', 1, 30, 7));
			set_block_setting($block_id, 'infoStyle', safe_POST('infoStyle', array('list', 'table'), 'table'));
			set_block_setting($block_id, 'show_parents', safe_POST_bool('show_parents'));
			set_block_setting($block_id, 'sortStyle', safe_POST('sortStyle', array('name', 'date_asc', 'date_desc'), 'date_desc'));
			set_block_setting($block_id, 'hide_empty', safe_POST_bool('hide_empty'));
			set_block_setting($block_id, 'block', safe_POST_bool('block'));
			echo WT_JS_START, 'window.opener.location.href=window.opener.location.href;window.close();', WT_JS_END;
			exit;
		}

		require_once WT_ROOT . 'includes/functions/functions_edit.php';

		$days = get_block_setting($block_id, 'days', 7);
		echo '<tr><td class="descriptionbox wrap width33">';
		echo WT_I18N::translate('Number of days to show');
		echo '</td><td class="optionbox">';
		echo '<input type="text" name="days" size="2" value="', $days, '" />';
		echo ' <em>', WT_I18N::plural('maximum %d day', 'maximum %d days', 30, 30), '</em>';
		echo '</td></tr>';

		$infoStyle = get_block_setting($block_id, 'infoStyle', 'table');
		echo '<tr><td class="descriptionbox wrap width33">';
		echo WT_I18N::translate('Presentation style');
		echo '</td><td class="optionbox">';
		echo select_edit_control('infoStyle', array('list' => WT_I18N::translate('list'), 'table' => WT_I18N::translate('table')), null, $infoStyle, '');
		echo '</td></tr>';

		$sortStyle = get_block_setting($block_id, 'sortStyle', 'date');
		echo '<tr><td class="descriptionbox wrap width33">';
		echo WT_I18N::translate('Sort order');
		echo '</td><td class="optionbox">';
		echo select_edit_control('sortStyle', array(
			'name'      => /* I18N: An option in a list-box */ WT_I18N::translate('sort by name'),
			'date_asc'  => /* I18N: An option in a list-box */ WT_I18N::translate('sort by date, oldest first'),
			'date_desc' => /* I18N: An option in a list-box */ WT_I18N::translate('sort by date, newest first')
		), null, $sortStyle, '');
		echo '</td></tr>';

		$show_parents = get_block_setting($block_id, 'show_parents', true);
		echo '<tr><td class="descriptionbox wrap width33">';
		echo /* I18N: label for a yes/no option */ WT_I18N::translate('Show parents');
		echo '</td><td class="optionbox">';
		echo edit_field_yes_no('show_parents', $show_parents);
		echo '</td></tr>';

		$block = get_block_setting($block_id, 'block', true);
		echo '<tr><td class="descriptionbox wrap width33">';
		echo /* I18N: label for a yes/no option */ WT_I18N::translate('Add a scrollbar when block contents grow');
		echo '</td><td class="optionbox">';
		echo edit_field_yes_no('block', $block);
		echo '</td></tr>';

		$hide_empty = get_block_setting($block_id, 'hide_empty', true);
		echo '<tr><td class="descriptionbox wrap width33">';
		echo WT_I18N::translate('Should this block be hidden when it is empty?');
		echo '</td><td class="optionbox">';
		echo edit_field_yes_no('hide_empty', $hide_empty);
		echo '</td></tr>';
		echo '<tr><td colspan="2" class="optionbox wrap">';
		echo '<span class="error">', WT_I18N::translate('If you hide an empty block, you will not be able to change its configuration until it becomes visible by no longer being empty.'), '</span>';
		echo '</td></tr>';
	}

}
