<?php
/**
 * MyBB 1.6
 * Copyright 2010 MyBB Group, All Rights Reserved
 *
 * Website: http://mybb.com
 * License: http://mybb.com/about/license
 *
 * $Id$
 */

function task_promotions($task)
{
	global $mybb, $db, $lang, $cache;
	
	$usergroups = $cache->read("usergroups");
	// Iterate through all our promotions
	$query = $db->simple_select("promotions", "*", "enabled = '1'");
	while($promotion = $db->fetch_array($query))
	{
		// Does the destination usergroup even exist?? If it doesn't and it moves a user to it, the user will get PHP errors.
		if(!array_key_exists($promotion['newusergroup'], $usergroups))
		{
			// Instead of just skipping this promotion, disable it to stop it even being selected when this task is run.
			$update = array(
				"enabled" => 0
			);
			$db->update_query("promotions", $update, "pid = '" . intval($promotion['pid']) . "'");
			continue;
		}
		
		$and = "";
		$sql_where = "";
		
		// Based on the promotion generate criteria for user selection
		$requirements = explode(',', $promotion['requirements']);
		if(in_array('postcount', $requirements) && intval($promotion['posts']) >= 0 && !empty($promotion['posttype']))
		{
			$sql_where .= "{$and}postnum {$promotion['posttype']} '{$promotion['posts']}'";
			
			$and = " AND ";
		}
		
		if(in_array('reputation', $requirements) && !empty($promotion['reputationtype']))
		{
			$sql_where .= "{$and}reputation {$promotion['reputationtype']} '{$promotion['reputations']}'";
			
			$and = " AND ";
		}
		
		if(in_array('referrals', $requirements) && intval($promotion['referrals']) >= 0 && !empty($promotion['referralstype']))
		{
			$sql_where .= "{$and}referrals {$promotion['referralstype']} '{$promotion['referrals']}'";
			
			$and = " AND ";
		}
		
		if(in_array('timeregistered', $requirements) && intval($promotion['registered']) > 0 && !empty($promotion['registeredtype']))
		{
			switch($promotion['registeredtype'])
			{
				case "hours":
					$regdate = $promotion['registered']*60*60;
					break;
				case "days":
					$regdate = $promotion['registered']*60*60*24;
					break;
				case "weeks":
					$regdate = $promotion['registered']*60*60*24*7;
					break;
				case "months":
					$regdate = $promotion['registered']*60*60*24*30;
					break;
				case "years":
					$regdate = $promotion['registered']*60*60*24*365;
					break;
				default:
					$regdate = $promotion['registered']*60*60*24;
			}
			$sql_where .= "{$and}regdate <= '".(TIME_NOW-$regdate)."'";
			$and = " AND ";
		}
		
		if(!empty($promotion['originalusergroup']) && $promotion['originalusergroup'] != '*')
		{
			$sql_where .= "{$and}usergroup IN ({$promotion['originalusergroup']})";
				
			$and = " AND ";
		}
		
		if(!empty($promotion['newusergroup']))
		{
			$sql_where .= "{$and}usergroup != '{$promotion['newusergroup']}'";
					
			$and = " AND ";
		}
		
		$sql_where .= "{$and}lastactive >= '{$task['lastrun']}'";
		
		$uid = array();
		$log_inserts = array();
		
		if($promotion['usergrouptype'] == "secondary")
		{
			$usergroup_select = "additionalgroups";
		}
		else
		{
			$usergroup_select = "usergroup";
		}
		
		$query2 = $db->simple_select("users", "uid,{$usergroup_select}", $sql_where);
		while($user = $db->fetch_array($query2))
		{
			// super admin check?
			if($usergroup_select == "additionalgroups")
			{
				$log_inserts[] = array(
					'pid' => $promotion['pid'],
					'uid' => $user['uid'],
					'oldusergroup' => $user['additionalgroups'],
					'newusergroup' => $promotion['newusergroup'],
					'dateline' => TIME_NOW,
					'type' => "secondary",
				);
			}
			else
			{
				$log_inserts[] = array(
					'pid' => $promotion['pid'],
					'uid' => $user['uid'],
					'oldusergroup' => $user['usergroup'],
					'newusergroup' => $promotion['newusergroup'],
					'dateline' => TIME_NOW,
					'type' => "primary",
				);
			}
		
			$uids[] = $user['uid'];
			
			
			if($usergroup_select == "additionalgroups")
			{
				if(join_usergroup($user['uid'], $promotion['newusergroup']) === false)
				{
					// Did the user already have the additional usergroup?
					array_pop($log_inserts);
					array_pop($uids);
				}
			}
			
			if((count($uids) % 20) == 0)
			{
				if($usergroup_select == "usergroup")
				{
					$db->update_query("users", array('usergroup' => $promotion['newusergroup']), "uid IN(".implode(",", $uids).")");
				}
				
				if(!empty($log_inserts))
				{
					$db->insert_query_multiple("promotionlogs", $log_inserts);
				}
				
				$uids = array();
				$log_inserts = array();
			}
		}
		
		if(count($uids) > 0)
		{
			if($usergroup_select == "usergroup")
			{
				$db->update_query("users", array('usergroup' => $promotion['newusergroup']), "uid IN(".implode(",", $uids).")");
			}
			
			if(!empty($log_inserts))
			{
				$db->insert_query_multiple("promotionlogs", $log_inserts);
			}
				
			$uids = array();
			$log_inserts = array();
		}
	}
	
	$cache->update_moderators();
	
	add_task_log($task, $lang->task_promotions_ran);
}
?>