<?php
/*=====================================================================*\
|| ###################################################################
|| # Bugdar [#]version[#]
|| # Copyright Š2002-[#]year[#] Iris Studios, Inc.
|| #
|| # 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; version [#]gpl[#] of the License.
|| #
|| # 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.,
|| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|| ###################################################################
\*=====================================================================*/

require_once('./global.php');
require_once('./includes/functions_datastore.php');

if (!can_perform('canadminfields'))
{
	admin_login();
}

$TYPES = array(
	'input_text' => $lang->string('Single-Line Text Box'),
	'input_checkbox' => $lang->string('Checkbox Flag'),
	'select_single' => $lang->string('Drop-Down Menu'),
);

// ###################################################################

if (empty($_REQUEST['do']))
{
	$_REQUEST['do'] = 'modify';
}

// ###################################################################

if ($_REQUEST['do'] == 'kill')
{
	$field = $db->query_first("SELECT * FROM " . TABLE_PREFIX . "bugfield WHERE fieldid = " . intval($bugsys->in['fieldid']));
	if (!$field)
	{
		$admin->error($lang->getlex('error_invalid_id'));
	}
	
	$db->query("DELETE FROM " . TABLE_PREFIX . "bugfield WHERE fieldid = $field[fieldid]");
	$db->query("DELETE FROM " . TABLE_PREFIX . "bugfieldpermission WHERE fieldid = $field[fieldid]");
	$db->query("ALTER TABLE " . TABLE_PREFIX . "bugvaluefill DROP field$field[fieldid]");
	$db->query("OPTIMIZE TABLE " . TABLE_PREFIX . "bugvaluefill");
	
	build_user_help();
	
	$admin->redirect('field.php?do=modify');
}

// ###################################################################

if ($_REQUEST['do'] == 'delete')
{
	$field = $db->query_first("SELECT * FROM " . TABLE_PREFIX . "bugfield WHERE fieldid = " . intval($bugsys->in['fieldid']));
	if (!$field)
	{
		$admin->error($lang->getlex('error_invalid_id'));
	}
	
	$admin->page_confirm($lang->string('Are you sure you want to delete this bug field? Doing so will remove everything for this field and it cannot be undone!'), "field.php?do=kill&amp;fieldid=$field[fieldid]");
}

// ###################################################################

if ($_REQUEST['do'] == 'update')
{
	$edit = false;
	$add = true;
	
	$type = $bugsys->in['type'];
	
	if ($bugsys->in['fieldid'])
	{
		$field = $db->query_first("SELECT * FROM " . TABLE_PREFIX . "bugfield WHERE fieldid = " . intval($bugsys->in['fieldid']));
		if (!$field)
		{
			$admin->error($lang->getlex('error_invalid_id'));
		}
		
		$edit = true;
		$add = false;
		$type = $field['type'];
	}
	
	if (empty($bugsys->in['name']))
	{
		$admin->error($lang->string('You must specify a display name.'));
	}
	if (!isset($TYPES["$type"]) AND $add)
	{
		$admin->error($lang->string('Invalid field type specified.'));
	}
	
	switch ($type)
	{
		case 'input_text':
			$extrafields = 'defaultvalue, regexmatch, maxlength';
			$extradata = "'" . $bugsys->in['defaultvalue'] . "', '" . $bugsys->in['regexmatch'] . "', " . intval($bugsys->in['maxlength']);
			$extraupdate = "defaultvalue = '" . $bugsys->in['defaultvalue'] . "', regexmatch = '" . $bugsys->in['regexmatch'] . "', maxlength = " . intval($bugsys->in['maxlength']);
		break;
		
		case 'input_checkbox':
			$extrafields = 'defaultvalue';
			$extradata = intval($bugsys->in['defaultvalue']);
			$extraupdate = "defaultvalue = " . intval($bugsys->in['defaultvalue']);
		break;
		
		case 'select_single':
			$extrafields = 'selects, usedefault';
			
			// can't use explode() here because explode() returns !empty() when splitting an empty string
			// so we have to use preg_split with the PREG_SPLIT_NO_EMPTY flag to prevent this
			$selects = preg_split("#\n#", trim($bugsys->in['selects']), 0, PREG_SPLIT_NO_EMPTY);
			array_walk($selects, 'trim');
			if (count($selects) < 1)
			{
				$admin->error($lang->string('You need to specify some select values.'));
			}
			
			$extradata = "'" . $bugsys->escape(serialize($selects)) . "', " . intval($bugsys->in['usedefault']);
			$extraupdate = "selects = '" . $bugsys->escape(serialize($selects)) . "', usedefault = " . intval($bugsys->in['usedefault']);
		break;
	}
	
	if ($add)
	{
		$db->query("
			INSERT INTO " . TABLE_PREFIX . "bugfield
				(name, description, type, required, cansearch, $extrafields)
			VALUES
				('" . $bugsys->in['name'] . "',
				'" . $bugsys->in['description'] . "', '$type', " . intval($bugsys->in['required']) . ",
				" . intval($bugsys->in['cansearch']) . ", $extradata
			)"
		);
		
		$fieldid = $db->insert_id();
		
		$db->query("ALTER TABLE " . TABLE_PREFIX . "bugvaluefill ADD field$fieldid MEDIUMTEXT NULL");
		$db->query("OPTIMIZE TABLE " . TABLE_PREFIX . "bugvaluefill");
	}
	else
	{
		$db->query("
			UPDATE " . TABLE_PREFIX . "bugfield
			SET name = '" . $bugsys->in['name'] . "',
				description = '" . $bugsys->in['description'] . "',
				required = " . intval($bugsys->in['required']) . ",
				cansearch = " . intval($bugsys->in['cansearch']) . ",
				$extraupdate
			WHERE fieldid = " . intval($bugsys->in['fieldid'])
		);
		
		$fieldid = intval($bugsys->in['fieldid']);
	}
	
	foreach ($bugsys->in['custom'] AS $usergroupid => $mask)
	{
		$values[] = intval($usergroupid) . ", $fieldid, " . intval($mask);
	}
	
	$db->query("
		REPLACE INTO " . TABLE_PREFIX . "bugfieldpermission
			(usergroupid, fieldid, mask)
		VALUES
			(" . implode("),\n\t\t\t(", $values) . ")"
	);
	
	build_user_help();

	$admin->redirect('field.php?do=modify', ($add ? $lang->string('The custom field has been added') : $lang->string('The custom field has been updated')));
}

// ###################################################################

if ($_REQUEST['do'] == 'add' OR $_REQUEST['do'] == 'edit')
{
	$add = (($_REQUEST['do'] == 'add') ? true : false);
	$typeselect = (($add AND empty($bugsys->in['step'])) ? true : false);
	$edit = (($add) ? false : true);
	
	$admin->page_start(($add ? $lang->string('Add New Custom Field') : $lang->string('Edit Custom Field')));
	$admin->form_start('field.php', ($typeselect ? 'add' : 'update'));
	if ($add AND !$typeselect)
	{
		$admin->form_hidden_field('type', $bugsys->in['type']);
	}
	if ($typeselect)
	{
		$admin->form_hidden_field('step', 1);
		$admin->table_start(true, '40%');
		$admin->table_head($lang->string('Select Type'), 2, 'custom_bug_fields');
	}
	else
	{
		$admin->table_start();
		$admin->table_head(($add ? $lang->string('Add New Bug Field') . ' - ' . $TYPES[ $bugsys->in['type'] ] : $lang->string('Edit Field')), 2, 'custom_bug_fields_options');
	}
	
	if ($edit)
	{
		$field = $db->query_first("SELECT * FROM " . TABLE_PREFIX . "bugfield WHERE fieldid = " . intval($bugsys->in['fieldid']));
		if (!$field)
		{
			$admin->error($lang->getlex('error_invalid_id'));
		}
		
		$admin->form_hidden_field('fieldid', $field['fieldid']);
	}
	
	if (!$typeselect)
	{
		$type = (($add) ? $bugsys->in['type'] : $field['type']);
	}
	
	// show type selector
	if (empty($bugsys->in['step']) AND $add)
	{
		foreach ($TYPES AS $name => $description)
		{
			$admin->list_item($description, $name);
		}
		$admin->row_list($lang->string('Field Type'), 'type', false);
		
		$admin->row_submit();
		$admin->table_end();
	}
	// have type, do that funkay thing!
	else
	{
		if (!isset($TYPES["$type"]))
		{
			$admin->error($lang->getlex('error_invalid_id'));
		}
		
		// global fields
		$admin->row_span($lang->string('Global Fields'), 'thead', 'center');
		$admin->row_text($lang->string('Field Type'), $TYPES["$type"]);
		$admin->row_input($lang->string('Display Name'), 'name', $field['name']);
		$admin->row_textarea($lang->string('Description'), 'description', $field['description']);
		$admin->row_yesno($lang->string('Required'), 'required', $field['required']);
		$admin->row_yesno($lang->string('Can Be Searched'), 'cansearch', ((isset($field['cansearch'])) ? $field['cansearch'] : true));
		
		// type-specific fields
		$admin->row_span($lang->string('Type-Specific Fields'), 'thead', 'center');
		
		switch ($type)
		{
			case 'input_text':
				$admin->row_input($lang->string('Default Value'), 'defaultvalue', $field['defaultvalue']);
				$admin->row_input($lang->string('Regular Expression Match'), 'regexmatch', $field['regexmatch']);
				$admin->row_input($lang->string('Maximum Length'), 'maxlength', $field['maxlength'], 2, 10);
			break;
			
			case 'input_checkbox':
				$admin->row_yesno($lang->string('Checked By Default'), 'defaultvalue', $field['defaultvalue']);
			break;
			
			case 'select_single':
				$admin->row_textarea($lang->string('Selection Values'), 'selects', stripslashes(implode("\n", unserialize($field['selects']))));
				$admin->row_yesno($lang->string('Make the First Option Default'), 'usedefault', $field['usedefault']);
			break;
		}
		
		$admin->table_end();
		
		// custom field permissions
		$admin->table_start();
		$admin->table_head($lang->string('Custom Field Permissions'));
		
		if ($edit)
		{
			$perms = $db->query("SELECT usergroupid, mask FROM " . TABLE_PREFIX . "bugfieldpermission WHERE fieldid = $field[fieldid]");
			while ($perm = $db->fetch_array($perms))
			{
				$permissions["$perm[usergroupid]"] = $perm['mask'];
			}
		}
		
		$usergroups = $db->query("SELECT * FROM " . TABLE_PREFIX . "usergroup ORDER BY usergroupid");
		while ($usergroup = $db->fetch_array($usergroups))
		{
			unset($listitem);
			$admin->list_item($lang->string('No Permission'), 0, $permissions["$usergroup[usergroupid]"] == 0);
			$admin->list_item($lang->string('Can View Field'), 1, $permissions["$usergroup[usergroupid]"] == 1);
			$admin->list_item($lang->string('Can View, Edit Field'), 2, $permissions["$usergroup[usergroupid]"] == 2);
			$admin->row_list($usergroup['title'], "custom[$usergroup[usergroupid]]");
		}
		
		$admin->table_end();
		
		// end table
		$admin->table_start();
		$admin->row_submit((($edit) ? '<a href="field.php?do=delete&amp;fieldid=' . $field['fieldid'] . '">[' . $lang->string('Delete Field') . ']</a>' : ''));
		$admin->table_end();
		$admin->form_end();
	}
	
	$admin->page_end();
}

// ###################################################################

if ($_REQUEST['do'] == 'modify')
{
	$admin->page_start($lang->string('Additional Bug Fields'));
	
	$admin->table_start();
	$admin->table_head($lang->string('Additional Bug Fields'), 3, 'custom_bug_fields');
	$admin->table_column_head(array($lang->string('Display Name/Description'), $lang->string('Field ID'), $lang->string('Actions')));
	
	$fields = $db->query("SELECT * FROM " . TABLE_PREFIX . "bugfield ORDER BY fieldid ASC");
	while ($field = $db->fetch_array($fields))
	{
		$admin->row_multi_item(
			array(
				"$field[name]<div class=\"smallfont\"><em>$field[description]</em></div>" => 'l',
				"$field[fieldid]" => 'c',
				"<a href=\"field.php?do=edit&amp;fieldid=$field[fieldid]\">[" . $lang->string('Edit') . "]</a> <a href=\"field.php?do=delete&amp;fieldid=$field[fieldid]\">[" . $lang->string('Delete') . "]</a>" => 'c'
			)
		);
	}
	
	$admin->row_span('<a href="field.php?do=add">[' . $lang->string('Add New Bug Field') . ']</a>', 'tfoot', 'center', 3);
	$admin->table_end();
	
	$admin->page_end();
}

/*=====================================================================*\
|| ###################################################################
|| # $HeadURL$
|| # $Id$
|| ###################################################################
\*=====================================================================*/
?>