<?php
/**
 * @file mod/notifications.php
 * @brief The notifications module
 */
use Friendica\App;
use Friendica\Content\ContactSelector;
use Friendica\Content\Nav;
use Friendica\Core\L10n;
use Friendica\Core\NotificationsManager;
use Friendica\Core\System;
use Friendica\Database\DBM;

function notifications_post(App $a) {

	if (! local_user()) {
		goaway(System::baseUrl());
	}

	$request_id = (($a->argc > 1) ? $a->argv[1] : 0);

	if($request_id === "all")
		return;

	if($request_id) {

		$r = q("SELECT * FROM `intro` WHERE `id` = %d  AND `uid` = %d LIMIT 1",
			intval($request_id),
			intval(local_user())
		);

		if (DBM::is_result($r)) {
			$intro_id = $r[0]['id'];
			$contact_id = $r[0]['contact-id'];
		}
		else {
			notice(L10n::t('Invalid request identifier.') . EOL);
			return;
		}

		// If it is a friend suggestion, the contact is not a new friend but an existing friend
		// that should not be deleted.

		$fid = $r[0]['fid'];

		if($_POST['submit'] == L10n::t('Discard')) {
			$r = q("DELETE FROM `intro` WHERE `id` = %d",
				intval($intro_id)
			);
			if(! $fid) {

				// The check for blocked and pending is in case the friendship was already approved
				// and we just want to get rid of the now pointless notification

				$r = q("DELETE FROM `contact` WHERE `id` = %d AND `uid` = %d AND `self` = 0 AND `blocked` = 1 AND `pending` = 1",
					intval($contact_id),
					intval(local_user())
				);
			}
			goaway('notifications/intros');
		}
		if($_POST['submit'] == L10n::t('Ignore')) {
			$r = q("UPDATE `intro` SET `ignore` = 1 WHERE `id` = %d",
				intval($intro_id));
			goaway('notifications/intros');
		}
	}
}

function notifications_content(App $a) {

	if (! local_user()) {
		notice(L10n::t('Permission denied.') . EOL);
		return;
	}

	$page	=	(x($_REQUEST,'page')		? $_REQUEST['page']		: 1);
	$show	=	(x($_REQUEST,'show')		? $_REQUEST['show']		: 0);

	Nav::setSelected('notifications');

	$json = (($a->argc > 1 && $a->argv[$a->argc - 1] === 'json') ? true : false);

	$nm = new NotificationsManager();

	$o = '';
	// Get the nav tabs for the notification pages
	$tabs = $nm->getTabs();
	$notif_content = [];

	// Notification results per page
	$perpage = 20;
	$startrec = ($page * $perpage) - $perpage;

	// Get introductions
	if ((($a->argc > 1) && ($a->argv[1] == 'intros')) || (($a->argc == 1))) {
		Nav::setSelected('introductions');
		$notif_header = L10n::t('Notifications');

		$all = (($a->argc > 2) && ($a->argv[2] == 'all'));

		$notifs = $nm->introNotifs($all, $startrec, $perpage);

	// Get the network notifications
	} else if (($a->argc > 1) && ($a->argv[1] == 'network')) {

		$notif_header = L10n::t('Network Notifications');
		$notifs = $nm->networkNotifs($show, $startrec, $perpage);

	// Get the system notifications
	} else if (($a->argc > 1) && ($a->argv[1] == 'system')) {

		$notif_header = L10n::t('System Notifications');
		$notifs = $nm->systemNotifs($show, $startrec, $perpage);

	// Get the personal notifications
	} else if (($a->argc > 1) && ($a->argv[1] == 'personal')) {

		$notif_header = L10n::t('Personal Notifications');
		$notifs = $nm->personalNotifs($show, $startrec, $perpage);

	// Get the home notifications
	} else if (($a->argc > 1) && ($a->argv[1] == 'home')) {

		$notif_header = L10n::t('Home Notifications');
		$notifs = $nm->homeNotifs($show, $startrec, $perpage);

	}


	// Set the pager
	$a->set_pager_total($notifs['total']);
	$a->set_pager_itemspage($perpage);

	// Add additional informations (needed for json output)
	$notifs['items_page'] = $a->pager['itemspage'];
	$notifs['page'] = $a->pager['page'];

	// Json output
	if (intval($json) === 1) {
		System::jsonExit($notifs);
	}

	$notif_tpl = get_markup_template('notifications.tpl');

	// Process the data for template creation
	if($notifs['ident'] === 'introductions') {

		$sugg = get_markup_template('suggestions.tpl');
		$tpl = get_markup_template("intros.tpl");

		// The link to switch between ignored and normal connection requests
		$notif_show_lnk = [
			'href' => (!$all ? 'notifications/intros/all' : 'notifications/intros' ),
			'text' => (!$all ? L10n::t('Show Ignored Requests') : L10n::t('Hide Ignored Requests'))
		];

		// Loop through all introduction notifications.This creates an array with the output html for each
		// introduction
		foreach ($notifs['notifications'] as $it) {

			// There are two kind of introduction. Contacts suggested by other contacts and normal connection requests.
			// We have to distinguish between these two because they use different data.
			switch ($it['label']) {
				case 'friend_suggestion':
					$notif_content[] = replace_macros($sugg, [
						'$str_notifytype' => L10n::t('Notification type: '),
						'$notify_type' => $it['notify_type'],
						'$intro_id' => $it['intro_id'],
						'$madeby' => L10n::t('suggested by %s', $it['madeby']),
						'$contact_id' => $it['contact-id'],
						'$photo' => $it['photo'],
						'$fullname' => $it['name'],
						'$url' => $it['url'],
						'$hidden' => ['hidden', L10n::t('Hide this contact from others'), ($it['hidden'] == 1), ''],

						'$knowyou' => $it['knowyou'],
						'$approve' => L10n::t('Approve'),
						'$note' => $it['note'],
						'$request' => $it['request'],
						'$ignore' => L10n::t('Ignore'),
						'$discard' => L10n::t('Discard'),
					]);
					break;

				// Normal connection requests
				default:
					$friend_selected = (($it['network'] !== NETWORK_OSTATUS) ? ' checked="checked" ' : ' disabled ');
					$fan_selected = (($it['network'] === NETWORK_OSTATUS) ? ' checked="checked" disabled ' : '');
					$dfrn_tpl = get_markup_template('netfriend.tpl');

					$knowyou   = '';
					$dfrn_text = '';

					if($it['network'] === NETWORK_DFRN || $it['network'] === NETWORK_DIASPORA) {
						if($it['network'] === NETWORK_DFRN) {
							$lbl_knowyou = L10n::t('Claims to be known to you: ');
							$knowyou = (($it['knowyou']) ? L10n::t('yes') : L10n::t('no'));
							$helptext = L10n::t('Shall your connection be bidirectional or not?');
							$helptext2 = L10n::t('Accepting %s as a friend allows %s to subscribe to your posts, and you will also receive updates from them in your news feed.', $it['name'], $it['name']);
							$helptext3 = L10n::t('Accepting %s as a subscriber allows them to subscribe to your posts, but you will not receive updates from them in your news feed.', $it['name']);
						} else {
							$knowyou = '';
							$helptext = L10n::t('Shall your connection be bidirectional or not?');
							$helptext2 = L10n::t('Accepting %s as a friend allows %s to subscribe to your posts, and you will also receive updates from them in your news feed.', $it['name'], $it['name']);
							$helptext3 = L10n::t('Accepting %s as a sharer allows them to subscribe to your posts, but you will not receive updates from them in your news feed.', $it['name']);
						}
					}

					$dfrn_text = replace_macros($dfrn_tpl,[
						'$intro_id' => $it['intro_id'],
						'$friend_selected' => $friend_selected,
						'$fan_selected' => $fan_selected,
						'$approve_as1' => $helptext,
						'$approve_as2' => $helptext2,
						'$approve_as3' => $helptext3,
						'$as_friend' => L10n::t('Friend'),
						'$as_fan' => (($it['network'] == NETWORK_DIASPORA) ? L10n::t('Sharer') : L10n::t('Subscriber'))
					]);

					$header = $it["name"];

					if ($it["addr"] != "")
						$header .= " <".$it["addr"].">";

					$header .= " (".ContactSelector::networkToName($it['network'], $it['url']).")";

					if ($it['network'] != NETWORK_DIASPORA) {
						$discard = L10n::t('Discard');
					} else {
						$discard = '';
					}

					$notif_content[] = replace_macros($tpl, [
						'$header' => htmlentities($header),
						'$str_notifytype' => L10n::t('Notification type: '),
						'$notify_type' => $it['notify_type'],
						'$dfrn_text' => $dfrn_text,
						'$dfrn_id' => $it['dfrn_id'],
						'$uid' => $it['uid'],
						'$intro_id' => $it['intro_id'],
						'$contact_id' => $it['contact_id'],
						'$photo' => $it['photo'],
						'$fullname' => $it['name'],
						'$location' => $it['location'],
						'$lbl_location' => L10n::t('Location:'),
						'$about' => $it['about'],
						'$lbl_about' => L10n::t('About:'),
						'$keywords' => $it['keywords'],
						'$lbl_keywords' => L10n::t('Tags:'),
						'$gender' => $it['gender'],
						'$lbl_gender' => L10n::t('Gender:'),
						'$hidden' => ['hidden', L10n::t('Hide this contact from others'), ($it['hidden'] == 1), ''],
						'$url' => $it['url'],
						'$zrl' => $it['zrl'],
						'$lbl_url' => L10n::t('Profile URL'),
						'$addr' => $it['addr'],
						'$lbl_knowyou' => $lbl_knowyou,
						'$lbl_network' => L10n::t('Network:'),
						'$network' => ContactSelector::networkToName($it['network'], $it['url']),
						'$knowyou' => $knowyou,
						'$approve' => L10n::t('Approve'),
						'$note' => $it['note'],
						'$ignore' => L10n::t('Ignore'),
						'$discard' => $discard,

					]);
					break;
			}
		}

		if($notifs['total'] == 0)
			info(L10n::t('No introductions.') . EOL);

	// Normal notifications (no introductions)
	} else {

		// The template files we need in different cases for formatting the content
		$tpl_item_like = 'notifications_likes_item.tpl';
		$tpl_item_dislike = 'notifications_dislikes_item.tpl';
		$tpl_item_attend = 'notifications_attend_item.tpl';
		$tpl_item_attendno = 'notifications_attend_item.tpl';
		$tpl_item_attendmaybe = 'notifications_attend_item.tpl';
		$tpl_item_friend = 'notifications_friends_item.tpl';
		$tpl_item_comment = 'notifications_comments_item.tpl';
		$tpl_item_post = 'notifications_posts_item.tpl';
		$tpl_item_notify = 'notify.tpl';

		// Loop trough ever notification This creates an array with the output html for each
		// notification and apply the correct template according to the notificationtype (label).
		foreach ($notifs['notifications'] as $it) {

			// We use the notification label to get the correct template file
			$tpl_var_name = 'tpl_item_'.$it['label'];
			$tpl_notif = get_markup_template($$tpl_var_name);

			$notif_content[] = replace_macros($tpl_notif,[
				'$item_label' => $it['label'],
				'$item_link' => $it['link'],
				'$item_image' => $it['image'],
				'$item_url' => $it['url'],
				'$item_text' => $it['text'],
				'$item_when' => $it['when'],
				'$item_ago' => $it['ago'],
				'$item_seen' => $it['seen'],
			]);
		}

		// It doesn't make sense to show the Show unread / Show all link visible if the user is on the
		// "Show all" page and there are no notifications. So we will hide it.
		if ($show == 0 || intval($show) && $notifs['total'] > 0) {
			$notif_show_lnk = [
				'href' => ($show ? 'notifications/'.$notifs['ident'] : 'notifications/'.$notifs['ident'].'?show=all' ),
				'text' => ($show ? L10n::t('Show unread') : L10n::t('Show all')),
			];
		}

		// Output if there aren't any notifications available
		if ($notifs['total'] == 0) {
			$notif_nocontent = L10n::t('No more %s notifications.', $notifs['ident']);
		}
	}

	$o .= replace_macros($notif_tpl, [
		'$notif_header' => $notif_header,
		'$tabs' => $tabs,
		'$notif_content' => $notif_content,
		'$notif_nocontent' => $notif_nocontent,
		'$notif_show_lnk' => $notif_show_lnk,
		'$notif_paginate' => paginate($a)
	]);

	return $o;
}
