<?php
// -------------------------------------------------------------
//
// $Id$
//
// FILENAME  : ucp_pm.php
// STARTED   : Sat Mar 27, 2004
// COPYRIGHT : © 2004 phpBB Group
// WWW       : http://www.phpbb.com/
// LICENCE   : GPL vs2.0 [ see /docs/COPYING ] 
// 
// -------------------------------------------------------------

// TODO for M-4:
//
// * Review of post when replying/quoting
// * Introduce post/post thread forwarding
// * Introduce (option of) emailing entire PM when notifying user of new message
// * Handle delete flag (user deletes PM from outbox)

class ucp_pm extends module
{
	function ucp_pm($id, $mode)
	{
		global $user, $template, $phpbb_root_path, $auth, $phpEx, $db, $SID, $config;
		
		if ($user->data['user_id'] == ANONYMOUS)
		{
			trigger_error('NO_PM');
		}

		// Is PM disabled?
		if (!$config['allow_privmsg'])
		{
			trigger_error('PM_DISABLED');
		}

		$user->add_lang('posting');
		$template->assign_var('S_PRIVMSGS', true);

		$folder_specified = request_var('folder', '');
		if (!in_array($folder_specified, array('inbox', 'outbox', 'sentbox')))
		{
			$folder_specified = (int) $folder_specified;
		}
		else
		{
			$folder_specified = ($folder_specified == 'inbox') ? PRIVMSGS_INBOX : (($folder_specified == 'outbox') ? PRIVMSGS_OUTBOX : PRIVMSGS_SENTBOX);
		}

		if (!$folder_specified)
		{
			$mode = (!$mode) ? request_var('mode', 'view_messages') : $mode;
		}
		else
		{
			$mode = 'view_messages';
		}

		include($phpbb_root_path . 'includes/functions_privmsgs.' . $phpEx);
		
		$tpl_file = 'ucp_pm_' . $mode . '.html';
		switch ($mode)
		{
			// New private messages popup
			case 'popup':
			
				$l_new_message = '';
				if ($user->data['user_id'] != ANONYMOUS)
				{
					if ($user->data['user_new_privmsg'])
					{
						$l_new_message = ($user->data['user_new_privmsg'] == 1 ) ? $user->lang['YOU_NEW_PM'] : $user->lang['YOU_NEW_PMS'];
					}
					else
					{
						$l_new_message = $user->lang['YOU_NO_NEW_PM'];
					}

					$l_new_message .= '<br /><br />' . sprintf($user->lang['CLICK_VIEW_PRIVMSG'], '<a href="' . $phpbb_root_path . 'ucp.' . $phpEx . $SID . '&amp;i=pm&amp;folder=inbox" onclick="jump_to_inbox();return false;" target="_new">', '</a>');
				}
				else
				{
					$l_new_message = $user->lang['LOGIN_CHECK_PM'];
				}

				$template->assign_vars(array(
					'MESSAGE'	=> $l_new_message)
				);

				break;
			
			// Compose message
			case 'compose':
				$action = request_var('action', 'post');
	
				if (!$auth->acl_get('u_sendpm'))
				{
					trigger_error('NOT_AUTHORIZED');
				}

				include($phpbb_root_path . 'includes/ucp/ucp_pm_compose.'.$phpEx);
				compose_pm($id, $mode, $action);
			
				$tpl_file = 'posting_body.html';
				break;
			
			case 'options':
				include($phpbb_root_path . 'includes/ucp/ucp_pm_options.'.$phpEx);
				message_options($id, $mode, $global_privmsgs_rules, $global_rule_conditions);
				break;

			case 'drafts':
				include($phpbb_root_path . 'includes/ucp/ucp_main.'.$phpEx);
				$module = new ucp_main($id, $mode);
				unset($module);
				exit;
				break;

			case 'unread':
			case 'view_messages':
				if ($folder_specified)
				{
					$folder_id = $folder_specified;
					$action = 'view_folder';
				}
				else
				{
					$folder_id = request_var('f', PRIVMSGS_NO_BOX);
					$action = request_var('action', 'view_folder');
				}

				$msg_id = request_var('p', 0);
				$view	= request_var('view', '');
				
				if ($msg_id && $action == 'view_folder')
				{
					$action = 'view_message';
				}

				if (!$auth->acl_get('u_readpm'))
				{
					trigger_error('NOT_AUTHORIZED');
				}

				// First Handle Mark actions and moving messages

				// Move PM
				if (isset($_REQUEST['move_pm']))
				{
					$message_limit = (!$user->data['group_message_limit']) ? $config['pm_max_msgs'] : $user->data['group_message_limit'];

					if (move_pm($user->data['user_id'], $message_limit))
					{
						// Return to folder view if single message moved
						if ($action == 'view_message')
						{
							$msg_id		= 0;
							$folder_id	= request_var('cur_folder_id', PRIVMSGS_NO_BOX);
							$action		= 'view_folder';
						}
					}
				}

				// Message Mark Options
				if (isset($_REQUEST['submit_mark']))
				{
					handle_mark_actions($user->data['user_id'], request_var('mark_option', ''));
				}

				// If new messages arrived, place them into the appropiate folder
				$num_not_moved = 0;
				if ($user->data['user_new_privmsg'] && $action == 'view_folder')
				{
					place_pm_into_folder($global_privmsgs_rules, request_var('release', 0));
					$num_not_moved = $user->data['user_new_privmsg'];
				}
		
				if (!$msg_id && $folder_id == PRIVMSGS_NO_BOX && $mode != 'unread')
				{
					$folder_id = PRIVMSGS_INBOX;
				}
				else if ($msg_id && $folder_id == PRIVMSGS_NO_BOX)
				{
					$sql = 'SELECT folder_id
						FROM ' . PRIVMSGS_TO_TABLE . "
						WHERE msg_id = $msg_id
							AND user_id = " . $user->data['user_id'];
					$result = $db->sql_query_limit($sql, 1);
					if (!($row = $db->sql_fetchrow($result)))
					{
						trigger_error('MESSAGE_NO_LONGER_AVAILABLE');
					}					
					$folder_id = (int) $row['folder_id'];
				}
			
				$message_row = array();
				if ($mode == 'view_messages' && $action == 'view_message' && $msg_id)
				{
					// Get Message user want to see
					
					if ($view == 'next' || $view == 'previous')
					{
						$sql_condition = ($view == 'next') ? '>' : '<';
						$sql_ordering = ($view == 'next') ? 'ASC' : 'DESC';

						$sql = 'SELECT t.msg_id
							FROM ' . PRIVMSGS_TO_TABLE . ' t, ' . PRIVMSGS_TABLE . ' p, ' . PRIVMSGS_TABLE . " p2
							WHERE p2.msg_id = $msg_id
								AND t.folder_id = $folder_id
								AND t.user_id = " . $user->data['user_id'] . "
								AND t.msg_id = p.msg_id
								AND p.message_time $sql_condition p2.message_time
							ORDER BY p.message_time $sql_ordering";
						$result = $db->sql_query_limit($sql, 1);

						if (!($row = $db->sql_fetchrow($result)))
						{
							$message = ($view == 'next') ? 'NO_NEWER_PM' : 'NO_OLDER_PM';
							trigger_error($message);
						}
						else
						{
							$msg_id = $row['msg_id'];
						}
					}
	
					$sql = 'SELECT t.*, p.*, u.*
						FROM ' . PRIVMSGS_TO_TABLE . ' t, ' . PRIVMSGS_TABLE . ' p, ' . USERS_TABLE . ' u
						WHERE t.user_id = ' . $user->data['user_id'] . "
							AND p.author_id = u.user_id
							AND t.folder_id = $folder_id
							AND t.msg_id = p.msg_id
							AND p.msg_id = $msg_id";
					$result = $db->sql_query_limit($sql, 1);

					if (!($message_row = $db->sql_fetchrow($result)))
					{
						trigger_error('MESSAGE_NO_LONGER_AVAILABLE');
					}

					// Update unread status
					update_unread_status($message_row['unread'], $message_row['msg_id'], $user->data['user_id'], $folder_id);
				}
			
				$unread_pm = array();
				if ($user->data['user_unread_privmsg'])
				{
					$unread_pm = get_unread_pm($user->data['user_id']);
				}
				$folder = array();
			
				if ($mode == 'unread')
				{
					$folder['unread'] = array('folder_name' => $user->lang['UNREAD_MESSAGES']);
				}
				get_folder($user->data['user_id'], $folder);

				$s_folder_options = $s_to_folder_options = '';
				foreach ($folder as $f_id => $folder_ary)
				{
					$unread = ((isset($unread_pm[$f_id]) || ($f_id == PRIVMSGS_OUTBOX && $folder_ary['num_messages'])) ? ' [' . (($f_id == PRIVMSGS_OUTBOX) ? $folder_ary['num_messages'] : $unread_pm[$f_id]) . ']' : '');
					
					$option = '<option' . ((!in_array($f_id, array(PRIVMSGS_INBOX, PRIVMSGS_OUTBOX, PRIVMSGS_SENTBOX))) ? ' class="blue"' : '') . ' value="' . $f_id . '"' . ((($f_id == $folder_id && $mode != 'unread') || ($f_id === 'unread' && $mode == 'unread')) ? ' selected="selected"' : '') . '>' . $folder_ary['folder_name'] . $unread . '</option>';

					$s_to_folder_options .= ($f_id != PRIVMSGS_OUTBOX && $f_id != PRIVMSGS_SENTBOX) ? $option : '';
					$s_folder_options .= $option;
				}

				clean_sentbox($folder[PRIVMSGS_SENTBOX]['num_messages']);
	
				// Header for message view - folder and so on
				$folder_status = get_folder_status($folder_id, $folder);
				$url = "{$phpbb_root_path}ucp.$phpEx$SID&amp;i=$id";

				$template->assign_vars(array(
					'CUR_FOLDER_ID'			=> $folder_id,
					'CUR_FOLDER_NAME'		=> $folder_status['folder_name'],
					'NUM_NOT_MOVED'			=> $num_not_moved,
					'RELEASE_MESSAGE_INFO'	=> sprintf($user->lang['RELEASE_MESSAGES'], '<a href="' . $url . '&amp;folder=' . $folder_id . '&amp;release=1">', '</a>'),
					'NOT_MOVED_MESSAGES'	=> ($num_not_moved == 1) ? $user->lang['NOT_MOVED_MESSAGE'] : sprintf($user->lang['NOT_MOVED_MESSAGES'], $num_not_moved),

					'S_FOLDER_OPTIONS'		=> $s_folder_options,
					'S_TO_FOLDER_OPTIONS'	=> $s_to_folder_options,
					'S_FOLDER_ACTION'		=> "$url&amp;mode=view_messages&amp;action=view_folder",
					'S_PM_ACTION'			=> "$url&amp;mode=$mode&amp;action=$action",
					
					'U_INBOX'				=> ($folder_id != PRIVMSGS_INBOX) ? "$url&amp;folder=inbox" : '',
					'U_OUTBOX'				=> ($folder_id != PRIVMSGS_OUTBOX) ? "$url&amp;folder=outbox" : '',
					'U_SENTBOX'				=> ($folder_id != PRIVMSGS_SENTBOX) ? "$url&amp;folder=sentbox" : '',
					'U_CREATE_FOLDER'		=> "$url&amp;mode=options",

					'FOLDER_STATUS'			=> $folder_status['message'],
					'FOLDER_MAX_MESSAGES'	=> $folder_status['max'],
					'FOLDER_CUR_MESSAGES'	=> $folder_status['cur'],
					'FOLDER_REMAINING_MESSAGES'	=> $folder_status['remaining'],
					'FOLDER_PERCENT'		=> $folder_status['percent'])
				);
			
				if ($mode == 'unread' || $action == 'view_folder')
				{
					include($phpbb_root_path . 'includes/ucp/ucp_pm_viewfolder.'.$phpEx);
					view_folder($id, $mode, $folder_id, $folder, (($mode == 'unread') ? 'unread' : 'folder'));

					$tpl_file = 'ucp_pm_viewfolder.html';
				}
				else if ($action == 'view_message')
				{
					$template->assign_vars(array(
						'S_VIEW_MESSAGE'=> true,
						'MSG_ID'		=> $msg_id)
					);
				
					include($phpbb_root_path . 'includes/ucp/ucp_pm_viewmessage.'.$phpEx);
					view_message($id, $mode, $folder_id, $msg_id, $folder, $message_row);

					$tpl_file = ($view == 'print') ? 'ucp_pm_viewmessage_print.html' : 'ucp_pm_viewmessage.html';
				}
				
				break;

			default:
				trigger_error('NOT_AUTHORIZED');
		}

		$template->assign_vars(array( 
			'L_TITLE'			=> $user->lang['UCP_PM_' . strtoupper($mode)],
			'S_UCP_ACTION'		=> "{$phpbb_root_path}ucp.$phpEx$SID&amp;i=$id&amp;mode=$mode&amp;action=$action")
		);

		$this->display($user->lang['UCP_PM'], $tpl_file);
	}
}

?>