<?php
/*
	Question2Answer by Gideon Greenspan and contributors
	http://www.question2answer.org/

	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.

	More about this license: http://www.question2answer.org/license.php
*/

namespace Q2A\Controllers\User;

use Q2A\Controllers\BaseController;
use Q2A\Database\DbConnection;
use Q2A\Http\Exceptions\PageNotFoundException;

class UserProfile extends BaseController
{
	private $userid;
	private $userhtml;

	public function __construct(DbConnection $db)
	{
		require_once QA_INCLUDE_DIR . 'db/users.php';
		require_once QA_INCLUDE_DIR . 'db/selects.php';
		require_once QA_INCLUDE_DIR . 'app/users.php';
		require_once QA_INCLUDE_DIR . 'app/format.php';

		parent::__construct($db);
	}

	public function index()
	{
		$handle = qa_get_logged_in_handle();
		qa_redirect(!empty($handle) ? 'user/' . $handle : 'users');
	}

	public function profile($handle)
	{
		// Get the HTML to display for the handle, and if we're using external users, determine the userid

		if (QA_FINAL_EXTERNAL_USERS) {
			$userid = qa_handle_to_userid($handle);
			if (!isset($userid)) { // check the user exists
				throw new PageNotFoundException();
			}

			$usershtml = qa_get_users_html(array($userid), false, qa_path_to_root(), true);
			$userhtml = @$usershtml[$userid];
		} else {
			$userhtml = qa_html($handle);
		}


		// Redirect to 'My Account' page if button clicked

		if (qa_clicked('doaccount')) {
			qa_redirect('account');
		}


		// Find the user profile and questions and answers for this handle

		$loginuserid = qa_get_logged_in_userid();
		$identifier = QA_FINAL_EXTERNAL_USERS ? $userid : $handle;

		list($useraccount, $userprofile, $userfields, $usermessages, $userpoints, $userlevels, $navcategories, $userrank) =
			qa_db_select_with_pending(
				QA_FINAL_EXTERNAL_USERS ? null : qa_db_user_account_selectspec($handle, false),
				QA_FINAL_EXTERNAL_USERS ? null : qa_db_user_profile_selectspec($handle, false),
				QA_FINAL_EXTERNAL_USERS ? null : qa_db_userfields_selectspec(),
				QA_FINAL_EXTERNAL_USERS ? null : qa_db_recent_messages_selectspec(null, null, $handle, false, qa_opt_if_loaded('page_size_wall')),
				qa_db_user_points_selectspec($identifier),
				qa_db_user_levels_selectspec($identifier, QA_FINAL_EXTERNAL_USERS, true),
				qa_db_category_nav_selectspec(null, true),
				qa_db_user_rank_selectspec($identifier)
			);

		if (!QA_FINAL_EXTERNAL_USERS && $handle !== qa_get_logged_in_handle()) {
			foreach ($userfields as $index => $userfield) {
				if (isset($userfield['permit']) && qa_permit_value_error($userfield['permit'], $loginuserid, qa_get_logged_in_level(), qa_get_logged_in_flags())) {
					unset($userfields[$index]); // don't pay attention to user fields we're not allowed to view
				}
			}
		}


		// Check the user exists and work out what can and can't be set (if not using single sign-on)

		$errors = array();

		$loginlevel = qa_get_logged_in_level();

		// if we're using integrated user management, we can know and show more
		if (!QA_FINAL_EXTERNAL_USERS) {
			require_once QA_INCLUDE_DIR . 'app/messages.php';

			if (!is_array($userpoints) && !is_array($useraccount)) { // check the user exists
				throw new PageNotFoundException();
			}

			$userid = $useraccount['userid'];
			$fieldseditable = false;
			$maxlevelassign = null;

			$maxuserlevel = $useraccount['level'];
			foreach ($userlevels as $userlevel) {
				$maxuserlevel = max($maxuserlevel, $userlevel['level']);
			}

			if (isset($loginuserid) && $loginuserid != $userid &&
				($loginlevel >= QA_USER_LEVEL_SUPER || $loginlevel > $maxuserlevel) &&
				!qa_user_permit_error()
			) {
				// can't change self - or someone on your level (or higher, obviously) unless you're a super admin
				if ($loginlevel >= QA_USER_LEVEL_SUPER) {
					$maxlevelassign = QA_USER_LEVEL_SUPER;
				} elseif ($loginlevel >= QA_USER_LEVEL_ADMIN) {
					$maxlevelassign = QA_USER_LEVEL_MODERATOR;
				} elseif ($loginlevel >= QA_USER_LEVEL_MODERATOR) {
					$maxlevelassign = QA_USER_LEVEL_EXPERT;
				}

				if ($loginlevel >= QA_USER_LEVEL_ADMIN) {
					$fieldseditable = true;
				}

				if (isset($maxlevelassign) && ($useraccount['flags'] & QA_USER_FLAGS_USER_BLOCKED)) {
					$maxlevelassign = min($maxlevelassign, QA_USER_LEVEL_EDITOR); // if blocked, can't promote too high
				}
			}

			$approvebutton = isset($maxlevelassign)
				&& $useraccount['level'] < QA_USER_LEVEL_APPROVED
				&& $maxlevelassign >= QA_USER_LEVEL_APPROVED
				&& !($useraccount['flags'] & QA_USER_FLAGS_USER_BLOCKED)
				&& qa_opt('moderate_users');
			$usereditbutton = $fieldseditable || isset($maxlevelassign);
			$userediting = $usereditbutton && (qa_get_state() == 'edit');

			$wallposterrorhtml = qa_wall_error_html($loginuserid, $useraccount['userid'], $useraccount['flags']);

			// This code is similar but not identical to that in to qq-page-user-wall.php

			$usermessages = array_slice($usermessages, 0, qa_opt('page_size_wall'));
			$usermessages = qa_wall_posts_add_rules($usermessages, 0);

			foreach ($usermessages as $message) {
				if ($message['deleteable'] && qa_clicked('m' . $message['messageid'] . '_dodelete')) {
					if (!qa_check_form_security_code('wall-' . $useraccount['handle'], qa_post_text('code'))) {
						$errors['page'] = qa_lang_html('misc/form_security_again');
					} else {
						qa_wall_delete_post($loginuserid, qa_get_logged_in_handle(), qa_cookie_get(), $message);
						qa_redirect(qa_request(), null, null, null, 'wall');
					}
				}
			}
		}


		// Process edit or save button for user, and other actions

		if (!QA_FINAL_EXTERNAL_USERS) {
			$reloaduser = false;

			if ($usereditbutton) {
				if (qa_clicked('docancel')) {
					qa_redirect(qa_request());
				} elseif (qa_clicked('doedit')) {
					qa_redirect(qa_request(), array('state' => 'edit'));
				} elseif (qa_clicked('dosave')) {
					require_once QA_INCLUDE_DIR . 'app/users-edit.php';
					require_once QA_INCLUDE_DIR . 'db/users.php';

					$inemail = qa_post_text('email');

					$inprofile = array();
					foreach ($userfields as $userfield) {
						$inprofile[$userfield['fieldid']] = qa_post_text('field_' . $userfield['fieldid']);
					}

					if (!qa_check_form_security_code('user-edit-' . $handle, qa_post_text('code'))) {
						$errors['page'] = qa_lang_html('misc/form_security_again');
						$userediting = true;
					} else {
						if (qa_post_text('removeavatar')) {
							qa_db_user_set_flag($userid, QA_USER_FLAGS_SHOW_AVATAR, false);
							qa_db_user_set_flag($userid, QA_USER_FLAGS_SHOW_GRAVATAR, false);

							if (isset($useraccount['avatarblobid'])) {
								require_once QA_INCLUDE_DIR . 'app/blobs.php';

								qa_db_user_set($userid, array(
									'avatarblobid' => null,
									'avatarwidth' => null,
									'avatarheight' => null,
								));
								qa_delete_blob($useraccount['avatarblobid']);
							}
						}

						if ($fieldseditable) {
							$filterhandle = $handle; // we're not filtering the handle...
							$errors = qa_handle_email_filter($filterhandle, $inemail, $useraccount);
							unset($errors['handle']); // ...and we don't care about any errors in it

							if (!isset($errors['email'])) {
								if ($inemail != $useraccount['email']) {
									qa_db_user_set($userid, 'email', $inemail);
									qa_db_user_set_flag($userid, QA_USER_FLAGS_EMAIL_CONFIRMED, false);
								}
							}

							if (count($inprofile)) {
								$filtermodules = qa_load_modules_with('filter', 'filter_profile');
								foreach ($filtermodules as $filtermodule) {
									$filtermodule->filter_profile($inprofile, $errors, $useraccount, $userprofile);
								}
							}

							foreach ($userfields as $userfield) {
								if (!isset($errors[$userfield['fieldid']])) {
									qa_db_user_profile_set($userid, $userfield['title'], $inprofile[$userfield['fieldid']]);
								}
							}

							if (count($errors)) {
								$userediting = true;
							}

							qa_report_event('u_edit', $loginuserid, qa_get_logged_in_handle(), qa_cookie_get(), array(
								'userid' => $userid,
								'handle' => $useraccount['handle'],
							));
						}

						if (isset($maxlevelassign)) {
							$inlevel = min($maxlevelassign, (int)qa_post_text('level')); // constrain based on maximum permitted to prevent simple browser-based attack
							if ($inlevel != $useraccount['level']) {
								qa_set_user_level($userid, $useraccount['handle'], $inlevel, $useraccount['level']);
							}

							if (qa_using_categories()) {
								$inuserlevels = array();

								for ($index = 1; $index <= 999; $index++) {
									$inlevel = qa_post_text('uc_' . $index . '_level');
									if (!isset($inlevel)) {
										break;
									}

									$categoryid = qa_get_category_field_value('uc_' . $index . '_cat');

									if (strlen($categoryid) && strlen($inlevel)) {
										$inuserlevels[] = array(
											'entitytype' => QA_ENTITY_CATEGORY,
											'entityid' => $categoryid,
											'level' => min($maxlevelassign, (int)$inlevel),
										);
									}
								}

								qa_db_user_levels_set($userid, $inuserlevels);
							}
						}

						if (empty($errors)) {
							qa_redirect(qa_request());
						}

						list($useraccount, $userprofile, $userlevels) = qa_db_select_with_pending(
							qa_db_user_account_selectspec($userid, true),
							qa_db_user_profile_selectspec($userid, true),
							qa_db_user_levels_selectspec($userid, true, true)
						);
					}
				}
			}

			if (qa_clicked('doapprove') || qa_clicked('doblock') || qa_clicked('dounblock') || qa_clicked('dohideall') || qa_clicked('dodelete')) {
				if (!qa_check_form_security_code('user-' . $handle, qa_post_text('code'))) {
					$errors['page'] = qa_lang_html('misc/form_security_again');
				} else {
					if ($approvebutton && qa_clicked('doapprove')) {
						require_once QA_INCLUDE_DIR . 'app/users-edit.php';
						qa_set_user_level($userid, $useraccount['handle'], QA_USER_LEVEL_APPROVED, $useraccount['level']);
						qa_redirect(qa_request());
					}

					if (isset($maxlevelassign) && ($maxuserlevel < QA_USER_LEVEL_MODERATOR)) {
						if (qa_clicked('doblock')) {
							require_once QA_INCLUDE_DIR . 'app/users-edit.php';

							qa_set_user_blocked($userid, $useraccount['handle'], true);
							qa_redirect(qa_request());
						}

						if (qa_clicked('dounblock')) {
							require_once QA_INCLUDE_DIR . 'app/users-edit.php';

							qa_set_user_blocked($userid, $useraccount['handle'], false);
							qa_redirect(qa_request());
						}

						if (qa_clicked('dohideall') && !qa_user_permit_error('permit_hide_show')) {
							require_once QA_INCLUDE_DIR . 'db/admin.php';
							require_once QA_INCLUDE_DIR . 'app/posts.php';

							$postids = qa_db_get_user_visible_postids($userid);

							foreach ($postids as $postid) {
								qa_post_set_status($postid, QA_POST_STATUS_HIDDEN, $loginuserid);
							}

							qa_redirect(qa_request());
						}

						if (qa_clicked('dodelete') && ($loginlevel >= QA_USER_LEVEL_ADMIN)) {
							require_once QA_INCLUDE_DIR . 'app/users-edit.php';

							qa_report_event('u_delete_before', $loginuserid, qa_get_logged_in_handle(), qa_cookie_get(), array(
								'userid' => $userid,
								'handle' => $useraccount['handle'],
							));

							qa_delete_user($userid);

							qa_report_event('u_delete', $loginuserid, qa_get_logged_in_handle(), qa_cookie_get(), array(
								'userid' => $userid,
								'handle' => $useraccount['handle'],
							));

							qa_redirect('users');
						}
					}
				}
			}


			if (qa_clicked('dowallpost')) {
				$inmessage = qa_post_text('message');

				if (!strlen($inmessage)) {
					$errors['message'] = qa_lang('profile/post_wall_empty');
				} elseif (!qa_check_form_security_code('wall-' . $useraccount['handle'], qa_post_text('code'))) {
					$errors['message'] = qa_lang_html('misc/form_security_again');
				} elseif (!$wallposterrorhtml) {
					qa_wall_add_post($loginuserid, qa_get_logged_in_handle(), qa_cookie_get(), $userid, $useraccount['handle'], $inmessage, '');
					qa_redirect(qa_request(), null, null, null, 'wall');
				}
			}
		}


		// Process bonus setting button

		if ($loginlevel >= QA_USER_LEVEL_ADMIN && qa_clicked('dosetbonus')) {
			require_once QA_INCLUDE_DIR . 'db/points.php';

			$inbonus = (int)qa_post_text('bonus');

			if (!qa_check_form_security_code('user-activity-' . $handle, qa_post_text('code'))) {
				$errors['page'] = qa_lang_html('misc/form_security_again');
			} else {
				qa_db_points_set_bonus($userid, $inbonus);
				qa_db_points_update_ifuser($userid, null);
				qa_redirect(qa_request(), null, null, null, 'activity');
			}
		}


		// Prepare content for theme

		$qa_content = qa_content_prepare();

		$qa_content['title'] = qa_lang_html_sub('profile/user_x', $userhtml);
		$qa_content['error'] = @$errors['page'];

		if (isset($loginuserid) && $loginuserid != $useraccount['userid'] && !QA_FINAL_EXTERNAL_USERS) {
			$favoritemap = qa_get_favorite_non_qs_map();
			$favorite = @$favoritemap['user'][$useraccount['userid']];

			$title = qa_lang_sub($favorite ? 'main/remove_x_favorites' : 'users/add_user_x_favorites', $handle);
			$qa_content['favorite'] = qa_favorite_form(QA_ENTITY_USER, $useraccount['userid'], $favorite, $title);
		}


		// General information about the user, only available if we're using internal user management

		if (!QA_FINAL_EXTERNAL_USERS) {
			$membertime = qa_time_to_string(qa_opt('db_time') - $useraccount['created']);
			$joindate = qa_when_to_html($useraccount['created'], 0);

			$qa_content['form_profile'] = array(
				'tags' => 'method="post" action="' . qa_self_html() . '"',

				'style' => 'wide',

				'fields' => array(
					'avatar' => array(
						'type' => 'image',
						'style' => 'tall',
						'label' => '',
						'html' => qa_get_user_avatar_html(
							$useraccount['flags'],
							$useraccount['email'],
							$useraccount['handle'],
							$useraccount['avatarblobid'],
							$useraccount['avatarwidth'],
							$useraccount['avatarheight'],
							qa_opt('avatar_profile_size')
						),
						'id' => 'avatar',
					),

					'removeavatar' => null,

					'duration' => array(
						'type' => 'static',
						'label' => qa_lang_html('users/member_for'),
						'value' => qa_html($membertime . ' (' . qa_lang_sub('main/since_x', $joindate['data']) . ')'),
						'id' => 'duration',
					),

					'level' => array(
						'type' => 'static',
						'label' => qa_lang_html('users/member_type'),
						'tags' => 'name="level"',
						'value' => qa_html(qa_user_level_string($useraccount['level'])),
						'note' => (($useraccount['flags'] & QA_USER_FLAGS_USER_BLOCKED) && isset($maxlevelassign)) ? qa_lang_html('users/user_blocked') : '',
						'id' => 'level',
					),
				),
			);

			if (empty($qa_content['form_profile']['fields']['avatar']['html'])) {
				unset($qa_content['form_profile']['fields']['avatar']);
			}


			// Private message link

			if (qa_opt('allow_private_messages') && isset($loginuserid) && $loginuserid != $userid && !($useraccount['flags'] & QA_USER_FLAGS_NO_MESSAGES) && !$userediting) {
				$qa_content['form_profile']['fields']['level']['value'] .= strtr(qa_lang_html('profile/send_private_message'), array(
					'^1' => '<a href="' . qa_path_html('message/' . $handle) . '">',
					'^2' => '</a>',
				));
			}


			// Levels editing or viewing (add category-specific levels)

			if ($userediting) {
				if (isset($maxlevelassign)) {
					$qa_content['form_profile']['fields']['level']['type'] = 'select';

					$showlevels = array(QA_USER_LEVEL_BASIC);
					if (qa_opt('moderate_users')) {
						$showlevels[] = QA_USER_LEVEL_APPROVED;
					}

					array_push($showlevels, QA_USER_LEVEL_EXPERT, QA_USER_LEVEL_EDITOR, QA_USER_LEVEL_MODERATOR, QA_USER_LEVEL_ADMIN, QA_USER_LEVEL_SUPER);

					$leveloptions = array();
					$catleveloptions = array('' => qa_lang_html('users/category_level_none'));

					foreach ($showlevels as $showlevel) {
						if ($showlevel <= $maxlevelassign) {
							$leveloptions[$showlevel] = qa_html(qa_user_level_string($showlevel));
							if ($showlevel > QA_USER_LEVEL_BASIC) {
								$catleveloptions[$showlevel] = $leveloptions[$showlevel];
							}
						}
					}

					$qa_content['form_profile']['fields']['level']['options'] = $leveloptions;


					// Category-specific levels

					if (qa_using_categories()) {
						$catleveladd = strlen(qa_get('catleveladd')) > 0;

						if (!$catleveladd && !count($userlevels)) {
							$qa_content['form_profile']['fields']['level']['suffix'] = strtr(qa_lang_html('users/category_level_add'), array(
								'^1' => '<a href="' . qa_path_html(qa_request(), array('state' => 'edit', 'catleveladd' => 1)) . '">',
								'^2' => '</a>',
							));
						} else {
							$qa_content['form_profile']['fields']['level']['suffix'] = qa_lang_html('users/level_in_general');
						}

						if ($catleveladd || count($userlevels)) {
							$userlevels[] = array('entitytype' => QA_ENTITY_CATEGORY);
						}

						$index = 0;
						foreach ($userlevels as $userlevel) {
							if ($userlevel['entitytype'] == QA_ENTITY_CATEGORY) {
								$index++;
								$id = 'ls_' . (+$index);

								$qa_content['form_profile']['fields']['uc_' . $index . '_level'] = array(
									'label' => qa_lang_html('users/category_level_label'),
									'type' => 'select',
									'tags' => 'name="uc_' . $index . '_level" id="' . qa_html($id) . '" onchange="this.qa_prev=this.options[this.selectedIndex].value;"',
									'options' => $catleveloptions,
									'value' => isset($userlevel['level']) ? qa_html(qa_user_level_string($userlevel['level'])) : '',
									'suffix' => qa_lang_html('users/category_level_in'),
								);

								$qa_content['form_profile']['fields']['uc_' . $index . '_cat'] = array();

								if (isset($userlevel['entityid'])) {
									$fieldnavcategories = qa_db_select_with_pending(qa_db_category_nav_selectspec($userlevel['entityid'], true));
								} else {
									$fieldnavcategories = $navcategories;
								}

								qa_set_up_category_field(
									$qa_content,
									$qa_content['form_profile']['fields']['uc_' . $index . '_cat'],
									'uc_' . $index . '_cat',
									$fieldnavcategories,
									@$userlevel['entityid'],
									true,
									true
								);

								unset($qa_content['form_profile']['fields']['uc_' . $index . '_cat']['note']);
							}
						}

						$qa_content['script_lines'][] = array(
							"function qa_update_category_levels()",
							"{",
							"\tglob=document.getElementById('level_select');",
							"\tif (!glob)",
							"\t\treturn;",
							"\tvar opts=glob.options;",
							"\tvar lev=parseInt(opts[glob.selectedIndex].value);",
							"\tfor (var i=1; i<9999; i++) {",
							"\t\tvar sel=document.getElementById('ls_'+i);",
							"\t\tif (!sel)",
							"\t\t\tbreak;",
							"\t\tsel.qa_prev=sel.qa_prev || sel.options[sel.selectedIndex].value;",
							"\t\tsel.options.length=1;", // just leaves "no upgrade" element
							"\t\tfor (var j=0; j<opts.length; j++)",
							"\t\t\tif (parseInt(opts[j].value)>lev)",
							"\t\t\t\tsel.options[sel.options.length]=new Option(opts[j].text, opts[j].value, false, (opts[j].value==sel.qa_prev));",
							"\t}",
							"}",
						);

						$qa_content['script_onloads'][] = array(
							"qa_update_category_levels();",
						);

						$qa_content['form_profile']['fields']['level']['tags'] .= ' id="level_select" onchange="qa_update_category_levels();"';
					}
				}
			} else {
				foreach ($userlevels as $userlevel) {
					if ($userlevel['entitytype'] == QA_ENTITY_CATEGORY && $userlevel['level'] > $useraccount['level']) {
						$qa_content['form_profile']['fields']['level']['value'] .= '<br/>' .
							strtr(qa_lang_html('users/level_for_category'), array(
								'^1' => qa_html(qa_user_level_string($userlevel['level'])),
								'^2' => '<a href="' . qa_path_html(implode('/', array_reverse(explode('/', $userlevel['backpath'])))) . '">' . qa_html($userlevel['title']) . '</a>',
							));
					}
				}
			}


			// Show any extra privileges due to user's level or their points

			$showpermits = array();
			$permitoptions = qa_get_permit_options();

			foreach ($permitoptions as $permitoption) {
				// if not available to approved and email confirmed users with no points, but yes available to the user, it's something special
				if (qa_permit_error($permitoption, $userid, QA_USER_LEVEL_APPROVED, QA_USER_FLAGS_EMAIL_CONFIRMED, 0) &&
					!qa_permit_error($permitoption, $userid, $useraccount['level'], $useraccount['flags'], $userpoints['points'])
				) {
					if ($permitoption == 'permit_retag_cat') {
						$showpermits[] = qa_lang(qa_using_categories() ? 'profile/permit_recat' : 'profile/permit_retag');
					} else {
						$showpermits[] = qa_lang('profile/' . $permitoption); // then show it as an extra priviliege
					}
				}
			}

			if (count($showpermits)) {
				$qa_content['form_profile']['fields']['permits'] = array(
					'type' => 'static',
					'label' => qa_lang_html('profile/extra_privileges'),
					'value' => qa_html(implode("\n", $showpermits), true),
					'rows' => count($showpermits),
					'id' => 'permits',
				);
			}


			// Show email address only if we're an administrator

			if ($loginlevel >= QA_USER_LEVEL_ADMIN && !qa_user_permit_error()) {
				$doconfirms = qa_opt('confirm_user_emails') && $useraccount['level'] < QA_USER_LEVEL_EXPERT;
				$isconfirmed = ($useraccount['flags'] & QA_USER_FLAGS_EMAIL_CONFIRMED) > 0;
				$htmlemail = qa_html(isset($inemail) ? $inemail : $useraccount['email']);

				$qa_content['form_profile']['fields']['email'] = array(
					'type' => $userediting ? 'email' : 'static',
					'label' => qa_lang_html('users/email_label'),
					'tags' => 'name="email"',
					'value' => $userediting ? $htmlemail : ('<a href="mailto:' . $htmlemail . '">' . $htmlemail . '</a>'),
					'error' => qa_html(@$errors['email']),
					'note' => ($doconfirms ? (qa_lang_html($isconfirmed ? 'users/email_confirmed' : 'users/email_not_confirmed') . ' ') : '') .
						($userediting ? '' : qa_lang_html('users/only_shown_admins')),
					'id' => 'email',
				);
			}


			// Show IP addresses and times for last login or write - only if we're a moderator or higher

			if ($loginlevel >= QA_USER_LEVEL_MODERATOR && !qa_user_permit_error()) {
				$qa_content['form_profile']['fields']['lastlogin'] = array(
					'type' => 'static',
					'label' => qa_lang_html('users/last_login_label'),
					'value' =>
						strtr(qa_lang_html('users/x_ago_from_y'), array(
							'^1' => qa_time_to_string(qa_opt('db_time') - $useraccount['loggedin']),
							'^2' => qa_ip_anchor_html(@inet_ntop($useraccount['loginip'])),
						)),
					'note' => $userediting ? null : qa_lang_html('users/only_shown_moderators'),
					'id' => 'lastlogin',
				);

				if (isset($useraccount['written'])) {
					$qa_content['form_profile']['fields']['lastwrite'] = array(
						'type' => 'static',
						'label' => qa_lang_html('users/last_write_label'),
						'value' =>
							strtr(qa_lang_html('users/x_ago_from_y'), array(
								'^1' => qa_time_to_string(qa_opt('db_time') - $useraccount['written']),
								'^2' => qa_ip_anchor_html(@inet_ntop($useraccount['writeip'])),
							)),
						'note' => $userediting ? null : qa_lang_html('users/only_shown_moderators'),
						'id' => 'lastwrite',
					);
				} else {
					unset($qa_content['form_profile']['fields']['lastwrite']);
				}
			}


			// Show other profile fields

			$fieldsediting = $fieldseditable && $userediting;

			foreach ($userfields as $userfield) {
				if (($userfield['flags'] & QA_FIELD_FLAGS_LINK_URL) && !$fieldsediting) {
					$valuehtml = qa_url_to_html_link(@$userprofile[$userfield['title']], qa_opt('links_in_new_window'));
				} else {
					$value = @$inprofile[$userfield['fieldid']];
					if (!isset($value)) {
						$value = @$userprofile[$userfield['title']];
					}

					$valuehtml = qa_html($value, (($userfield['flags'] & QA_FIELD_FLAGS_MULTI_LINE) && !$fieldsediting));
				}

				$label = trim(qa_user_userfield_label($userfield), ':');
				if (strlen($label)) {
					$label .= ':';
				}

				$notehtml = null;
				if (isset($userfield['permit']) && !$userediting) {
					if ($userfield['permit'] <= QA_PERMIT_ADMINS) {
						$notehtml = qa_lang_html('users/only_shown_admins');
					} elseif ($userfield['permit'] <= QA_PERMIT_MODERATORS) {
						$notehtml = qa_lang_html('users/only_shown_moderators');
					} elseif ($userfield['permit'] <= QA_PERMIT_EDITORS) {
						$notehtml = qa_lang_html('users/only_shown_editors');
					} elseif ($userfield['permit'] <= QA_PERMIT_EXPERTS) {
						$notehtml = qa_lang_html('users/only_shown_experts');
					}
				}

				$qa_content['form_profile']['fields'][$userfield['title']] = array(
					'type' => $fieldsediting ? 'text' : 'static',
					'label' => qa_html($label),
					'tags' => 'name="field_' . $userfield['fieldid'] . '"',
					'value' => $valuehtml,
					'error' => qa_html(@$errors[$userfield['fieldid']]),
					'note' => $notehtml,
					'rows' => ($userfield['flags'] & QA_FIELD_FLAGS_MULTI_LINE) ? 8 : null,
					'id' => 'userfield-' . $userfield['fieldid'],
				);
			}


			// Edit form or button, if appropriate

			if ($userediting) {
				if ((qa_opt('avatar_allow_gravatar') && ($useraccount['flags'] & QA_USER_FLAGS_SHOW_GRAVATAR)) ||
					(qa_opt('avatar_allow_upload') && ($useraccount['flags'] & QA_USER_FLAGS_SHOW_AVATAR) && isset($useraccount['avatarblobid']))
				) {
					$qa_content['form_profile']['fields']['removeavatar'] = array(
						'type' => 'checkbox',
						'label' => qa_lang_html('users/remove_avatar'),
						'tags' => 'name="removeavatar"',
					);
				}

				$qa_content['form_profile']['buttons'] = array(
					'save' => array(
						'tags' => 'onclick="qa_show_waiting_after(this, false);"',
						'label' => qa_lang_html('users/save_user'),
					),

					'cancel' => array(
						'tags' => 'name="docancel"',
						'label' => qa_lang_html('main/cancel_button'),
					),
				);

				$qa_content['form_profile']['hidden'] = array(
					'dosave' => '1',
					'code' => qa_get_form_security_code('user-edit-' . $handle),
				);
			} elseif ($usereditbutton) {
				$qa_content['form_profile']['buttons'] = array();

				if ($approvebutton) {
					$qa_content['form_profile']['buttons']['approve'] = array(
						'tags' => 'name="doapprove"',
						'label' => qa_lang_html('users/approve_user_button'),
					);
				}

				$qa_content['form_profile']['buttons']['edit'] = array(
					'tags' => 'name="doedit"',
					'label' => qa_lang_html('users/edit_user_button'),
				);

				if (isset($maxlevelassign) && $useraccount['level'] < QA_USER_LEVEL_MODERATOR) {
					if ($useraccount['flags'] & QA_USER_FLAGS_USER_BLOCKED) {
						$qa_content['form_profile']['buttons']['unblock'] = array(
							'tags' => 'name="dounblock"',
							'label' => qa_lang_html('users/unblock_user_button'),
						);

						if (!qa_user_permit_error('permit_hide_show')) {
							$qa_content['form_profile']['buttons']['hideall'] = array(
								'tags' => 'name="dohideall" onclick="qa_show_waiting_after(this, false);"',
								'label' => qa_lang_html('users/hide_all_user_button'),
							);
						}

						if ($loginlevel >= QA_USER_LEVEL_ADMIN) {
							$qa_content['form_profile']['buttons']['delete'] = array(
								'tags' => 'name="dodelete" onclick="qa_show_waiting_after(this, false);"',
								'label' => qa_lang_html('users/delete_user_button'),
							);
						}
					} else {
						$qa_content['form_profile']['buttons']['block'] = array(
							'tags' => 'name="doblock"',
							'label' => qa_lang_html('users/block_user_button'),
						);
					}

					$qa_content['form_profile']['hidden'] = array(
						'code' => qa_get_form_security_code('user-' . $handle),
					);
				}
			} elseif (isset($loginuserid) && ($loginuserid == $userid)) {
				$qa_content['form_profile']['buttons'] = array(
					'account' => array(
						'tags' => 'name="doaccount"',
						'label' => qa_lang_html('users/edit_profile'),
					),
				);
			}


			if (!is_array($qa_content['form_profile']['fields']['removeavatar'])) {
				unset($qa_content['form_profile']['fields']['removeavatar']);
			}

			$qa_content['raw']['account'] = $useraccount; // for plugin layers to access
			$qa_content['raw']['profile'] = $userprofile;
		}


		// Information about user activity, available also with single sign-on integration

		$qa_content['form_activity'] = array(
			'title' => '<span id="activity">' . qa_lang_html_sub('profile/activity_by_x', $userhtml) . '</span>',

			'style' => 'wide',

			'fields' => array(
				'bonus' => array(
					'label' => qa_lang_html('profile/bonus_points'),
					'tags' => 'name="bonus"',
					'value' => qa_html(isset($inbonus) ? $inbonus : $userpoints['bonus']),
					'type' => 'number',
					'note' => qa_lang_html('users/only_shown_admins'),
					'id' => 'bonus',
				),

				'points' => array(
					'type' => 'static',
					'label' => qa_lang_html('profile/score'),
					'value' => (@$userpoints['points'] == 1)
						? qa_lang_html_sub('main/1_point', '<span class="qa-uf-user-points">1</span>', '1')
						: qa_lang_html_sub('main/x_points', '<span class="qa-uf-user-points">' . qa_html(qa_format_number(@$userpoints['points'])) . '</span>'),
					'id' => 'points',
				),

				'title' => array(
					'type' => 'static',
					'label' => qa_lang_html('profile/title'),
					'value' => qa_get_points_title_html(@$userpoints['points'], qa_get_points_to_titles()),
					'id' => 'title',
				),

				'questions' => array(
					'type' => 'static',
					'label' => qa_lang_html('profile/questions'),
					'value' => '<span class="qa-uf-user-q-posts">' . qa_html(qa_format_number(@$userpoints['qposts'])) . '</span>',
					'id' => 'questions',
				),

				'answers' => array(
					'type' => 'static',
					'label' => qa_lang_html('profile/answers'),
					'value' => '<span class="qa-uf-user-a-posts">' . qa_html(qa_format_number(@$userpoints['aposts'])) . '</span>',
					'id' => 'answers',
				),
			),
		);

		if ($loginlevel >= QA_USER_LEVEL_ADMIN) {
			$qa_content['form_activity']['tags'] = 'method="post" action="' . qa_self_html() . '"';

			$qa_content['form_activity']['buttons'] = array(
				'setbonus' => array(
					'tags' => 'name="dosetbonus"',
					'label' => qa_lang_html('profile/set_bonus_button'),
				),
			);

			$qa_content['form_activity']['hidden'] = array(
				'code' => qa_get_form_security_code('user-activity-' . $handle),
			);
		} else {
			unset($qa_content['form_activity']['fields']['bonus']);
		}

		if (!isset($qa_content['form_activity']['fields']['title']['value'])) {
			unset($qa_content['form_activity']['fields']['title']);
		}

		if (qa_opt('comment_on_qs') || qa_opt('comment_on_as')) { // only show comment count if comments are enabled
			$qa_content['form_activity']['fields']['comments'] = array(
				'type' => 'static',
				'label' => qa_lang_html('profile/comments'),
				'value' => '<span class="qa-uf-user-c-posts">' . qa_html(qa_format_number(@$userpoints['cposts'])) . '</span>',
				'id' => 'comments',
			);
		}

		if (qa_opt('voting_on_qs') || qa_opt('voting_on_as')) { // only show vote record if voting is enabled
			$votedonvalue = '';

			if (qa_opt('voting_on_qs')) {
				$qvotes = @$userpoints['qupvotes'] + @$userpoints['qdownvotes'];

				$innervalue = '<span class="qa-uf-user-q-votes">' . qa_format_number($qvotes) . '</span>';
				$votedonvalue .= ($qvotes == 1) ? qa_lang_html_sub('main/1_question', $innervalue, '1')
					: qa_lang_html_sub('main/x_questions', $innervalue);

				if (qa_opt('voting_on_as')) {
					$votedonvalue .= ', ';
				}
			}

			if (qa_opt('voting_on_as')) {
				$avotes = @$userpoints['aupvotes'] + @$userpoints['adownvotes'];

				$innervalue = '<span class="qa-uf-user-a-votes">' . qa_format_number($avotes) . '</span>';
				$votedonvalue .= ($avotes == 1) ? qa_lang_html_sub('main/1_answer', $innervalue, '1')
					: qa_lang_html_sub('main/x_answers', $innervalue);
			}

			$qa_content['form_activity']['fields']['votedon'] = array(
				'type' => 'static',
				'label' => qa_lang_html('profile/voted_on'),
				'value' => $votedonvalue,
				'id' => 'votedon',
			);

			$upvotes = @$userpoints['qupvotes'] + @$userpoints['aupvotes'];
			$innervalue = '<span class="qa-uf-user-upvotes">' . qa_format_number($upvotes) . '</span>';
			$votegavevalue = (($upvotes == 1) ? qa_lang_html_sub('profile/1_up_vote', $innervalue, '1') : qa_lang_html_sub('profile/x_up_votes', $innervalue)) . ', ';

			$downvotes = @$userpoints['qdownvotes'] + @$userpoints['adownvotes'];
			$innervalue = '<span class="qa-uf-user-downvotes">' . qa_format_number($downvotes) . '</span>';
			$votegavevalue .= ($downvotes == 1) ? qa_lang_html_sub('profile/1_down_vote', $innervalue, '1') : qa_lang_html_sub('profile/x_down_votes', $innervalue);

			$qa_content['form_activity']['fields']['votegave'] = array(
				'type' => 'static',
				'label' => qa_lang_html('profile/gave_out'),
				'value' => $votegavevalue,
				'id' => 'votegave',
			);

			$innervalue = '<span class="qa-uf-user-upvoteds">' . qa_format_number(@$userpoints['upvoteds']) . '</span>';
			$votegotvalue = ((@$userpoints['upvoteds'] == 1) ? qa_lang_html_sub('profile/1_up_vote', $innervalue, '1')
					: qa_lang_html_sub('profile/x_up_votes', $innervalue)) . ', ';

			$innervalue = '<span class="qa-uf-user-downvoteds">' . qa_format_number(@$userpoints['downvoteds']) . '</span>';
			$votegotvalue .= (@$userpoints['downvoteds'] == 1) ? qa_lang_html_sub('profile/1_down_vote', $innervalue, '1')
				: qa_lang_html_sub('profile/x_down_votes', $innervalue);

			$qa_content['form_activity']['fields']['votegot'] = array(
				'type' => 'static',
				'label' => qa_lang_html('profile/received'),
				'value' => $votegotvalue,
				'id' => 'votegot',
			);
		}

		if (@$userpoints['points']) {
			$qa_content['form_activity']['fields']['points']['value'] .=
				qa_lang_html_sub('profile/ranked_x', '<span class="qa-uf-user-rank">' . qa_format_number($userrank) . '</span>');
		}

		if (@$userpoints['aselects']) {
			$qa_content['form_activity']['fields']['questions']['value'] .= ($userpoints['aselects'] == 1)
				? qa_lang_html_sub('profile/1_with_best_chosen', '<span class="qa-uf-user-q-selects">1</span>', '1')
				: qa_lang_html_sub('profile/x_with_best_chosen', '<span class="qa-uf-user-q-selects">' . qa_format_number($userpoints['aselects']) . '</span>');
		}

		if (@$userpoints['aselecteds']) {
			$qa_content['form_activity']['fields']['answers']['value'] .= ($userpoints['aselecteds'] == 1)
				? qa_lang_html_sub('profile/1_chosen_as_best', '<span class="qa-uf-user-a-selecteds">1</span>', '1')
				: qa_lang_html_sub('profile/x_chosen_as_best', '<span class="qa-uf-user-a-selecteds">' . qa_format_number($userpoints['aselecteds']) . '</span>');
		}


		// For plugin layers to access

		$qa_content['raw']['userid'] = $userid;
		$qa_content['raw']['points'] = $userpoints;
		$qa_content['raw']['rank'] = $userrank;


		// Wall posts

		if (!QA_FINAL_EXTERNAL_USERS && qa_opt('allow_user_walls')) {
			$qa_content['message_list'] = array(
				'title' => '<span id="wall">' . qa_lang_html_sub('profile/wall_for_x', $userhtml) . '</span>',

				'tags' => 'id="wallmessages"',

				'form' => array(
					'tags' => 'name="wallpost" method="post" action="' . qa_self_html() . '#wall"',
					'style' => 'tall',
					'hidden' => array(
						'qa_click' => '', // for simulating clicks in Javascript
						'handle' => qa_html($useraccount['handle']),
						'start' => 0,
						'code' => qa_get_form_security_code('wall-' . $useraccount['handle']),
					),
				),

				'messages' => array(),
			);

			if ($wallposterrorhtml) {
				$qa_content['message_list']['error'] = $wallposterrorhtml; // an error that means we are not allowed to post
			} else {
				$qa_content['message_list']['form']['fields'] = array(
					'message' => array(
						'tags' => 'name="message" id="message"',
						'value' => qa_html(@$inmessage, false),
						'rows' => 2,
						'error' => qa_html(@$errors['message']),
					),
				);

				$qa_content['message_list']['form']['buttons'] = array(
					'post' => array(
						'tags' => 'name="dowallpost" onclick="return qa_submit_wall_post(this, true);"',
						'label' => qa_lang_html('profile/post_wall_button'),
					),
				);
			}

			foreach ($usermessages as $message) {
				$qa_content['message_list']['messages'][] = qa_wall_post_view($message);
			}

			if ($useraccount['wallposts'] > count($usermessages)) {
				$qa_content['message_list']['messages'][] = qa_wall_view_more_link($handle, count($usermessages));
			}
		}


		// Sub menu for navigation in user pages

		$ismyuser = isset($loginuserid) && $loginuserid == (QA_FINAL_EXTERNAL_USERS ? $userid : $useraccount['userid']);
		$qa_content['navigation']['sub'] = qa_user_sub_navigation($handle, 'profile', $ismyuser);


		return $qa_content;
	}
}