<?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 families_WT_Module extends WT_Module implements WT_Module_Sidebar {
	// Extend class WT_Module
	public function getTitle() {
		return /* I18N: Name of a module/sidebar */ WT_I18N::translate('Family list');
	}

	// Extend class WT_Module
	public function getDescription() {
		return /* I18N: Description of the "Families" module */ WT_I18N::translate('A sidebar showing an alphabetic list of all the families in the family tree.');
	}

	// Implement WT_Module_Sidebar
	public function defaultSidebarOrder() {
		return 50;
	}

	// Implement WT_Module_Sidebar
	public function hasSidebarContent() {
		return true;
	}

	// Implement WT_Module_Sidebar
	public function getSidebarAjaxContent() {
		$alpha   =safe_GET('alpha'); // All surnames beginning with this letter where "@"=unknown and ","=none
		$surname =safe_GET('surname', '[^<>&%{};]*'); // All indis with this surname.  NB - allow ' and "
		$search   =safe_GET('search');

		$last = array('alpha'=>$alpha, 'surname'=>$surname, 'search'=>$search);
		$_SESSION['sb_families_last'] = $last;
		
		if ($search) {
			return $this->search($search);
		} elseif ($alpha=='@' || $alpha==',' || $surname) {
			return $this->getSurnameFams($alpha, $surname);
		} elseif ($alpha) {
			return $this->getAlphaSurnames($alpha, $surname);
		} else {
			return '';
		}
	}

	// Implement WT_Module_Sidebar
	public function getSidebarContent() {
		global $SHOW_MARRIED_NAMES, $WT_IMAGES, $UNKNOWN_NN;

		// Fetch a list of the initial letters of all surnames in the database
		$initials=WT_Query_Name::surnameAlpha($SHOW_MARRIED_NAMES, false, WT_GED_ID);

		$out = '<script type="text/javascript">
		<!--
		var famloadedNames = new Array();

		function fsearchQ() {
			var query = jQuery("#sb_fam_name").attr("value");
			if (query.length>1) {
				jQuery("#sb_fam_content").load("sidebar.php?sb_action=families&search="+query);
			}
		}

		jQuery(document).ready(function() {
			jQuery("#sb_fam_name").focus(function() {this.select();});
			jQuery("#sb_fam_name").blur(function() {if (this.value=="") this.value="'.WT_I18N::translate('Search').'";});
			var famtimerid = null;
			jQuery("#sb_fam_name").keyup(function(e) {
				if (famtimerid) window.clearTimeout(famtimerid);
				famtimerid = window.setTimeout("fsearchQ()", 500);
			});
			jQuery(".sb_fam_letter").live("click", function() {
				jQuery("#sb_fam_content").load(this.href);
				return false;
			});
			jQuery(".sb_fam_surname").live("click", function() {
				var surname = jQuery(this).attr("title");
				var alpha = jQuery(this).attr("alt");

				if (!famloadedNames[surname]) {
					jQuery.ajax({
					  url: "sidebar.php?sb_action=families&alpha="+alpha+"&surname="+surname,
					  cache: false,
					  success: function(html) {
					    jQuery("#sb_fam_"+surname+" div").html(html);
					    jQuery("#sb_fam_"+surname+" div").show();
					    jQuery("#sb_fam_"+surname).css("list-style-image", "url('.$WT_IMAGES['minus'].')");
					    famloadedNames[surname]=2;
					  }
					});
				}
				else if (famloadedNames[surname]==1) {
					famloadedNames[surname]=2;
					jQuery("#sb_fam_"+surname+" div").show();
					jQuery("#sb_fam_"+surname).css("list-style-image", "url('.$WT_IMAGES['minus'].')");
				}
				else {
					famloadedNames[surname]=1;
					jQuery("#sb_fam_"+surname+" div").hide();
					jQuery("#sb_fam_"+surname).css("list-style-image", "url('.$WT_IMAGES['plus'].')");
				}
				return false;
			});
		});
		//-->
		</script>
		<form method="post" action="sidebar.php" onsubmit="return false;">
		<input type="text" name="sb_fam_name" id="sb_fam_name" value="'.WT_I18N::translate('Search').'" />
		<p>';
		foreach ($initials as $letter=>$count) {
			switch ($letter) {
				case '@':
					$html=$UNKNOWN_NN;
					break;
				case ',':
					$html=WT_I18N::translate('None');
					break;
				case ' ':
					$html='&nbsp;';
					break;
				default:
					$html=$letter;
					break;
			}
			$html='<a href="sidebar.php?sb_action=families&amp;alpha='.urlencode($letter).'" class="sb_fam_letter">'.PrintReady($html).'</a>';
			$out .= $html." ";
		}

		$out .= '</p>';
		$out .= '<div id="sb_fam_content">';

		if (isset($_SESSION['sb_individuals_last'])) {
			$alpha   = $_SESSION['sb_individuals_last']['alpha'];
			$search  = $_SESSION['sb_individuals_last']['search'];
			$surname = $_SESSION['sb_individuals_last']['surname'];
			
			if ($search) {
				$out.=$this->search($search);
			} elseif ($alpha=='@' || $alpha==',' || $surname) {
				$out.=$this->getSurnameFams($alpha, $surname);
			} elseif ($alpha) {
				$out.=$this->getAlphaSurnames($alpha, $surname);
			}
		}

		$out .= '</div></form>';
		return $out;
	}

	public function getAlphaSurnames($alpha, $surname1='') {
		global $SHOW_MARRIED_NAMES;
		$surns=WT_Query_Name::surnames('', $alpha, $SHOW_MARRIED_NAMES, true, WT_GED_ID);
		$out = '<ul>';
		foreach ($surns as $surname=>$surns) {
			$out .= '<li id="sb_fam_'.$surname.'" class="sb_fam_surname_li"><a href="'.$surname.'" title="'.$surname.'" alt="'.$alpha.'" class="sb_fam_surname">'.$surname.'</a>';
			if (!empty($surname1) && $surname1==$surname) {
				$out .= '<div class="name_tree_div_visible">';
				$out .= $this->getSurnameFams($alpha, $surname1);
				$out .= '</div>';
			} else {
				$out .= '<div class="name_tree_div"></div>';
			}
			$out .= '</li>';
		}
		$out .= '</ul>';
		return $out;
	}

	public function getSurnameFams($alpha, $surname) {
		global $SHOW_MARRIED_NAMES;
		$families=WT_Query_Name::families($surname, $alpha, '', $SHOW_MARRIED_NAMES, WT_GED_ID);
		$out = '<ul>';
		foreach ($families as $family) {
			if ($family->canDisplayName()) {
				$out .= '<li><a href="'.$family->getHtmlUrl().'">'.$family->getFullName().' ';
				if ($family->canDisplayDetails()) {
					$bd = $family->getMarriageYear();
					if (!empty($bd)) {
						$out .= PrintReady(' ('.$bd.')');
					}
				}
				$out .= '</a></li>';
			}
		}
		$out .= '</ul>';
		return $out;
	}

	public function search($query) {
		if (strlen($query)<2) {
			return '';
		}

		//-- search for INDI names
		$rows=WT_DB::prepare(
			"SELECT ? AS type, i_id AS xref, i_file AS ged_id, i_gedcom AS gedrec".
			" FROM `##individuals`, `##name`".
			" WHERE (i_id LIKE ? OR n_sort LIKE ?)".
			" AND i_id=n_id AND i_file=n_file AND i_file=?".
			" ORDER BY n_sort LIMIT ".WT_AUTOCOMPLETE_LIMIT
		)
		->execute(array('INDI', "%{$query}%", "%{$query}%", WT_GED_ID))
		->fetchAll(PDO::FETCH_ASSOC);
		$ids = array();
		foreach ($rows as $row) {
			$ids[] = $row['xref'];
		}

		$vars=array('FAM');
		if (empty($ids)) {
			//-- no match : search for FAM id
			$where = "f_id LIKE ?";
			$vars[]="%{$query}%";
		} else {
			//-- search for spouses
			$qs=implode(',', array_fill(0, count($ids), '?'));
			$where = "(f_husb IN ($qs) OR f_wife IN ($qs))";
			$vars=array_merge($vars, $ids, $ids);
		}

		$vars[]=WT_GED_ID;
		$rows=WT_DB::prepare("SELECT ? AS type, f_id AS xref, f_file AS ged_id, f_gedcom AS gedrec FROM `##families` WHERE {$where} AND f_file=? LIMIT ".WT_AUTOCOMPLETE_LIMIT)
		->execute($vars)
		->fetchAll(PDO::FETCH_ASSOC);

		$out = '<ul>';
		foreach ($rows as $row) {
			$family=WT_Family::getInstance($row);
			if ($family->canDisplayName()) {
				$out .= '<li><a href="'.$family->getHtmlUrl().'">'.$family->getFullName().' ';
				if ($family->canDisplayDetails()) {
					$bd = $family->getMarriageYear();
					if (!empty($bd)) $out .= PrintReady(' ('.$bd.')');
				}
				$out .= '</a></li>';
			}
		}
		$out .= '</ul>';
		return $out;
	}
}
