<?php
/**
 * webtrees: online genealogy
 * Copyright (C) 2017 webtrees development team
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
namespace Fisharebest\Webtrees;

use Fisharebest\Webtrees\Controller\PageController;

/** @global Tree $WT_TREE */
global $WT_TREE;

require 'includes/session.php';

$controller = new PageController;
$controller
	->restrictAccess(Auth::isManager($WT_TREE))
	->setPageTitle(I18N::translate(/* I18N: Renumber the records in a family tree */ 'Renumber family tree') . ' — ' . $WT_TREE->getTitleHtml())
	->pageHeader();

// Every XREF used by this tree and also used by some other tree
$xrefs = Database::prepare(
	"SELECT xref, type FROM (" .
	" SELECT i_id AS xref, 'INDI' AS type FROM `##individuals` WHERE i_file = ?" .
	"  UNION " .
	" SELECT f_id AS xref, 'FAM' AS type FROM `##families` WHERE f_file = ?" .
	"  UNION " .
	" SELECT s_id AS xref, 'SOUR' AS type FROM `##sources` WHERE s_file = ?" .
	"  UNION " .
	" SELECT m_id AS xref, 'OBJE' AS type FROM `##media` WHERE m_file = ?" .
	"  UNION " .
	" SELECT o_id AS xref, o_type AS type FROM `##other` WHERE o_file = ? AND o_type NOT IN ('HEAD', 'TRLR')" .
	") AS this_tree JOIN (" .
	" SELECT xref FROM `##change` WHERE gedcom_id <> ?" .
	"  UNION " .
	" SELECT i_id AS xref FROM `##individuals` WHERE i_file <> ?" .
	"  UNION " .
	" SELECT f_id AS xref FROM `##families` WHERE f_file <> ?" .
	"  UNION " .
	" SELECT s_id AS xref FROM `##sources` WHERE s_file <> ?" .
	"  UNION " .
	" SELECT m_id AS xref FROM `##media` WHERE m_file <> ?" .
	"  UNION " .
	" SELECT o_id AS xref FROM `##other` WHERE o_file <> ? AND o_type NOT IN ('HEAD', 'TRLR')" .
	") AS other_trees USING (xref)"
)->execute([
	$WT_TREE->getTreeId(), $WT_TREE->getTreeId(), $WT_TREE->getTreeId(), $WT_TREE->getTreeId(), $WT_TREE->getTreeId(),
	$WT_TREE->getTreeId(), $WT_TREE->getTreeId(), $WT_TREE->getTreeId(), $WT_TREE->getTreeId(), $WT_TREE->getTreeId(), $WT_TREE->getTreeId(),
])->fetchAssoc();

echo '<h1>', $controller->getPageTitle(), '</h1>';

if (Filter::get('action') === 'renumber') {
	foreach ($xrefs as $old_xref => $type) {
		Database::beginTransaction();
		Database::exec(
			"LOCK TABLE `##individuals` WRITE," .
			" `##families` WRITE," .
			" `##sources` WRITE," .
			" `##media` WRITE," .
			" `##media_file` WRITE," .
			" `##other` WRITE," .
			" `##name` WRITE," .
			" `##placelinks` WRITE," .
			" `##change` WRITE," .
			" `##dates` WRITE," .
			" `##default_resn` WRITE," .
			" `##hit_counter` WRITE," .
			" `##link` WRITE," .
			" `##site_setting` WRITE," .
			" `##user_gedcom_setting` WRITE"
		);
		$new_xref = $WT_TREE->getNewXref($type);
		switch ($type) {
			case 'INDI':
				Database::prepare(
					"UPDATE `##individuals` SET i_id = ?, i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_id = ? AND i_file = ?"
				)->execute([$new_xref, "0 @$old_xref@ INDI\n", "0 @$new_xref@ INDI\n", $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = 'HUSB') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " HUSB @$old_xref@", " HUSB @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = 'WIFE') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " WIFE @$old_xref@", " WIFE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = 'CHIL') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " CHIL @$old_xref@", " CHIL @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = 'ASSO') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " ASSO @$old_xref@", " ASSO @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = '_ASSO') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " _ASSO @$old_xref@", " _ASSO @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ? AND l_type = 'ASSO') SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " ASSO @$old_xref@", " ASSO @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ? AND l_type = '_ASSO') SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " _ASSO @$old_xref@", " _ASSO @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##placelinks` SET pl_gid = ? WHERE pl_gid = ? AND pl_file = ?"
				)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##dates` SET d_gid = ? WHERE d_gid = ? AND d_file = ?"
				)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##user_gedcom_setting` SET setting_value = ? WHERE setting_value = ? AND gedcom_id = ? AND setting_name IN ('gedcomid', 'rootid')"
				)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
				break;
			case 'FAM':
				Database::prepare(
					"UPDATE `##families` SET f_id = ?, f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_id = ? AND f_file = ?"
				)->execute([$new_xref, "0 @$old_xref@ FAM\n", "0 @$new_xref@ FAM\n", $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ? AND l_type = 'FAMC') SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " FAMC @$old_xref@", " FAMC @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ? AND l_type = 'FAMS') SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " FAMS @$old_xref@", " FAMS @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##placelinks` SET pl_gid = ? WHERE pl_gid = ? AND pl_file = ?"
				)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##dates` SET d_gid = ? WHERE d_gid = ? AND d_file = ?"
				)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
				break;
			case 'SOUR':
				Database::prepare(
					"UPDATE `##sources` SET s_id = ?, s_gedcom = REPLACE(s_gedcom, ?, ?) WHERE s_id = ? AND s_file = ?"
				)->execute([$new_xref, "0 @$old_xref@ SOUR\n", "0 @$new_xref@ SOUR\n", $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ? AND l_type = 'SOUR') SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " SOUR @$old_xref@", " SOUR @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = 'SOUR') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " SOUR @$old_xref@", " SOUR @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##media` JOIN `##link` ON (l_file = m_file AND l_to = ? AND l_type = 'SOUR') SET m_gedcom = REPLACE(m_gedcom, ?, ?) WHERE m_file = ?"
				)->execute([$old_xref, " SOUR @$old_xref@", " SOUR @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##other` JOIN `##link` ON (l_file = o_file AND l_to = ? AND l_type = 'SOUR') SET o_gedcom = REPLACE(o_gedcom, ?, ?) WHERE o_file = ?"
				)->execute([$old_xref, " SOUR @$old_xref@", " SOUR @$new_xref@", $WT_TREE->getTreeId()]);
				break;
			case 'REPO':
				Database::prepare(
					"UPDATE `##other` SET o_id = ?, o_gedcom = REPLACE(o_gedcom, ?, ?) WHERE o_id = ? AND o_file = ?"
				)->execute([$new_xref, "0 @$old_xref@ REPO\n", "0 @$new_xref@ REPO\n", $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##sources` JOIN `##link` ON (l_file = s_file AND l_to = ? AND l_type = 'REPO') SET s_gedcom = REPLACE(s_gedcom, ?, ?) WHERE s_file = ?"
				)->execute([$old_xref, " REPO @$old_xref@", " REPO @$new_xref@", $WT_TREE->getTreeId()]);
				break;
			case 'NOTE':
				Database::prepare(
					"UPDATE `##other` SET o_id = ?, o_gedcom = REPLACE(REPLACE(o_gedcom, ?, ?), ?, ?) WHERE o_id = ? AND o_file = ?"
				)->execute([$new_xref, "0 @$old_xref@ NOTE\n", "0 @$new_xref@ NOTE\n", "0 @$old_xref@ NOTE ", "0 @$new_xref@ NOTE ", $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ? AND l_type = 'NOTE') SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " NOTE @$old_xref@", " NOTE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = 'NOTE') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " NOTE @$old_xref@", " NOTE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##media` JOIN `##link` ON (l_file = m_file AND l_to = ? AND l_type = 'NOTE') SET m_gedcom = REPLACE(m_gedcom, ?, ?) WHERE m_file = ?"
				)->execute([$old_xref, " NOTE @$old_xref@", " NOTE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##sources` JOIN `##link` ON (l_file = s_file AND l_to = ? AND l_type = 'NOTE') SET s_gedcom = REPLACE(s_gedcom, ?, ?) WHERE s_file = ?"
				)->execute([$old_xref, " NOTE @$old_xref@", " NOTE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##other` JOIN `##link` ON (l_file = o_file AND l_to = ? AND l_type = 'NOTE') SET o_gedcom = REPLACE(o_gedcom, ?, ?) WHERE o_file = ?"
				)->execute([$old_xref, " NOTE @$old_xref@", " NOTE @$new_xref@", $WT_TREE->getTreeId()]);
				break;
			case 'OBJE':
				Database::prepare(
					"UPDATE `##media` SET m_id = ?, m_gedcom = REPLACE(m_gedcom, ?, ?) WHERE m_id = ? AND m_file = ?"
				)->execute([$new_xref, "0 @$old_xref@ OBJE\n", "0 @$new_xref@ OBJE\n", $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##media_file` SET m_id = ? WHERE m_id = ? AND m_file = ?"
				)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ? AND l_type = 'OBJE') SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " OBJE @$old_xref@", " OBJE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ? AND l_type = 'OBJE') SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " OBJE @$old_xref@", " OBJE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##media` JOIN `##link` ON (l_file = m_file AND l_to = ? AND l_type = 'OBJE') SET m_gedcom = REPLACE(m_gedcom, ?, ?) WHERE m_file = ?"
				)->execute([$old_xref, " OBJE @$old_xref@", " OBJE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##sources` JOIN `##link` ON (l_file = s_file AND l_to = ? AND l_type = 'OBJE') SET s_gedcom = REPLACE(s_gedcom, ?, ?) WHERE s_file = ?"
				)->execute([$old_xref, " OBJE @$old_xref@", " OBJE @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##other` JOIN `##link` ON (l_file = o_file AND l_to = ? AND l_type = 'OBJE') SET o_gedcom = REPLACE(o_gedcom, ?, ?) WHERE o_file = ?"
				)->execute([$old_xref, " OBJE @$old_xref@", " OBJE @$new_xref@", $WT_TREE->getTreeId()]);
				break;
			default:
				Database::prepare(
					"UPDATE `##other` SET o_id = ?, o_gedcom = REPLACE(o_gedcom, ?, ?) WHERE o_id = ? AND o_file = ?"
				)->execute([$new_xref, "0 @$old_xref@ $type\n", "0 @$new_xref@ $type\n", $old_xref, $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##individuals` JOIN `##link` ON (l_file = i_file AND l_to = ?) SET i_gedcom = REPLACE(i_gedcom, ?, ?) WHERE i_file = ?"
				)->execute([$old_xref, " @$old_xref@", " @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##families` JOIN `##link` ON (l_file = f_file AND l_to = ?) SET f_gedcom = REPLACE(f_gedcom, ?, ?) WHERE f_file = ?"
				)->execute([$old_xref, " @$old_xref@", " @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##media` JOIN `##link` ON (l_file = m_file AND l_to = ?) SET m_gedcom = REPLACE(m_gedcom, ?, ?) WHERE m_file = ?"
				)->execute([$old_xref, " @$old_xref@", " @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##sources` JOIN `##link` ON (l_file = s_file AND l_to = ?) SET s_gedcom = REPLACE(s_gedcom, ?, ?) WHERE s_file = ?"
				)->execute([$old_xref, " @$old_xref@", " @$new_xref@", $WT_TREE->getTreeId()]);
				Database::prepare(
					"UPDATE `##other` JOIN `##link` ON (l_file = o_file AND l_to = ?) SET o_gedcom = REPLACE(o_gedcom, ?, ?) WHERE o_file = ?"
				)->execute([$old_xref, " @$old_xref@", " @$new_xref@", $WT_TREE->getTreeId()]);
				break;
		}
		Database::prepare(
			"UPDATE `##name` SET n_id = ? WHERE n_id = ? AND n_file = ?"
		)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
		Database::prepare(
			"UPDATE `##default_resn` SET xref = ? WHERE xref = ? AND gedcom_id = ?"
		)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
		Database::prepare(
			"UPDATE `##hit_counter` SET page_parameter = ? WHERE page_parameter = ? AND gedcom_id = ?"
		)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
		Database::prepare(
			"UPDATE `##link` SET l_from = ? WHERE l_from = ? AND l_file = ?"
		)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
		Database::prepare(
			"UPDATE `##link` SET l_to = ? WHERE l_to = ? AND l_file = ?"
		)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
		echo '<p>', I18N::translate('The record %1$s has been renamed to %2$s.', $old_xref, $new_xref), '</p>';
		unset($xrefs[$old_xref]);
		Database::exec("UNLOCK TABLES");
		Database::commit();

		try {
			Database::prepare(
				"UPDATE `##favorite` SET xref = ? WHERE xref = ? AND gedcom_id = ?"
			)->execute([$new_xref, $old_xref, $WT_TREE->getTreeId()]);
		} catch (\Exception $ex) {
			DebugBar::addThrowable($ex);

			// Perhaps the favorites module was not installed?
		}

		// How much time do we have left?
		if (microtime(true) - WT_START_TIME > ini_get('max_execution_time') - 2) {
			echo '<p>', I18N::translate('The server’s time limit has been reached.'), '</p>';
			break;
		}
	}
} else {
	echo '<p>', I18N::translate('In a family tree, each record has an internal reference number (called an “XREF”) such as “F123” or “R14”.'), '</p>';
	echo '<p>', I18N::translate('You can renumber the records in a family tree, so that these internal reference numbers are not duplicated in any other family tree.'), '</p>';
}

echo '<p>', I18N::plural(
	'This family tree has %s record which uses the same “XREF” as another family tree.',
	'This family tree has %s records which use the same “XREF” as another family tree.',
	count($xrefs), count($xrefs)
), '</p>';

if ($xrefs) {
	// We use GET (not POST) for this update operation - because we want the user to
	// be able to press F5 to continue after a timeout.
	echo '<form>';
	echo '<p>', I18N::translate('You can renumber this family tree.'), '</p>';
	echo '<button type="submit" class="btn btn-primary">';
	echo '<i class="fas fa-check" aria-hidden="true"></i> ', /* I18N: A button label. */ I18N::translate('continue');
	echo '</button>';
	echo '<input type="hidden" name="action" value="renumber">';
	echo '<input type="hidden" name="ged" value="', $WT_TREE->getNameHtml(), '">';
	echo '</form>';
	echo '<p>', I18N::translate('Caution! This may take a long time. Be patient.'), '</p>';
}
