From 4c4df5340263d832fc37405a843b60c9238c4e79 Mon Sep 17 00:00:00 2001
From: Daniel Thee Roperto <danielroperto@catalyst-au.net>
Date: Fri, 9 Sep 2016 15:57:24 +1000
Subject: [PATCH] Issue #15 - Added countdown to navbar, redirect to info.php
 when ended.

---
 lang/en/auth_outage.php                 |   3 +-
 renderer.php                            |  26 ++----
 settings.php                            |   2 +-
 res/default.css => views/warningbar.css |   0
 views/warningbar.php                    | 104 ++++++++++++++++++++++++
 5 files changed, 114 insertions(+), 21 deletions(-)
 rename res/default.css => views/warningbar.css (100%)
 create mode 100644 views/warningbar.php

diff --git a/lang/en/auth_outage.php b/lang/en/auth_outage.php
index 524eef9..08c8555 100644
--- a/lang/en/auth_outage.php
+++ b/lang/en/auth_outage.php
@@ -40,7 +40,7 @@ $string['description'] = 'Public Description';
 $string['menudefaults'] = 'Default Settings';
 $string['menumanage'] = 'Manage';
 $string['messageoutageongoing'] = 'Our system will be under maintenance until {$a->stop}.';
-$string['messageoutagewarning'] = 'There is an scheduled downtime from {$a->start} until {$a->stop}.';
+$string['messageoutagewarning'] = 'Shutting down in {{countdown}} ...';
 $string['outageedit'] = 'Edit Outage';
 $string['outagecreate'] = 'Create Outage';
 $string['outagedelete'] = 'Delete Outage';
@@ -49,6 +49,7 @@ $string['outageduration'] = 'Outage Duration';
 $string['outagedurationerrorinvalid'] = 'Outage duration must be positive.';
 $string['outageslist'] = 'Outages List';
 $string['pluginname'] = 'Outage manager';
+$string['readmore'] = 'Read More';
 $string['starttime'] = 'Start date and time';
 $string['textplaceholdershint'] = 'You can use {{start}} and {{stop}} as placeholders on the title/description for the actual start/stop time.';
 $string['titleerrorinvalid'] = 'Title cannot be left blank.';
diff --git a/renderer.php b/renderer.php
index 573be9c..4ca1f9e 100644
--- a/renderer.php
+++ b/renderer.php
@@ -152,6 +152,8 @@ class auth_outage_renderer extends plugin_renderer_base {
     }
 
     public function renderoutagebar(outage $outage) {
+        global $CFG;
+
         $start = userdate($outage->starttime, get_string('strftimedatetimeshort'));
         $stop = userdate($outage->stoptime, get_string('strftimedatetimeshort'));
 
@@ -161,24 +163,10 @@ class auth_outage_renderer extends plugin_renderer_base {
             ['start' => $start, 'stop' => $stop]
         );
 
-        return
-            html_writer::tag('style', get_config('auth_outage', 'css'))
-            . html_writer::div(
-                html_writer::div(
-                    html_writer::div($outage->get_title(), 'auth_outage_warningbar_box_title')
-                    . html_writer::div(
-                        $message . ' '
-                        . html_writer::tag('small',
-                            '[' . html_writer::link(
-                                new moodle_url('/auth/outage/info.php'), 'more', ['target' => 'outage']
-                            ) . ']'
-                        ),
-                        'auth_outage_warningbar_box_message'
-                    ),
-                    'auth_outage_warningbar_box'
-                ),
-                'auth_outage_warningbar'
-            )
-            . html_writer::div('&nbsp;', 'auth_outage_warningbar_spacer');
+        ob_start();
+        require($CFG->dirroot . '/auth/outage/views/warningbar.php');
+        $html = ob_get_contents();
+        ob_end_clean();
+        return $html;
     }
 }
diff --git a/settings.php b/settings.php
index b6c0b94..3df7fc2 100644
--- a/settings.php
+++ b/settings.php
@@ -55,7 +55,7 @@ if ($hassiteconfig && is_enabled_auth('outage')) {
         new admin_setting_configtextarea('auth_outage/css',
             get_string('defaultlayoutcss', 'auth_outage'),
             get_string('defaultlayoutcssdescription', 'auth_outage'),
-            file_get_contents($CFG->dirroot.'/auth/outage/res/default.css'),
+            file_get_contents($CFG->dirroot . '/auth/outage/views/warningbar.css'),
             PARAM_TEXT)
     );
     // Create category for Outage.
diff --git a/res/default.css b/views/warningbar.css
similarity index 100%
rename from res/default.css
rename to views/warningbar.css
diff --git a/views/warningbar.php b/views/warningbar.php
new file mode 100644
index 0000000..fc26212
--- /dev/null
+++ b/views/warningbar.php
@@ -0,0 +1,104 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle 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 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * View included by the renderer to output the outage warning bar.
+ *
+ * @package    auth_outage
+ * @author     Daniel Thee Roperto <daniel.roperto@catalyst-au.net>
+ * @copyright  Catalyst IT
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+if (!defined('MOODLE_INTERNAL')) {
+    die('Direct access to this script is forbidden.'); // It must be included from a Moodle page.
+}
+
+// If debugging include directly from file, otherwise use plugin settings.
+echo html_writer::tag('style',
+    debugging() ? file_get_contents($CFG->dirroot . '/auth/outage/views/warningbar.css') : get_config('auth_outage', 'css')
+);
+
+?>
+
+<div class="auth_outage_warningbar">
+    <div class="auth_outage_warningbar_box">
+        <div class="auth_outage_warningbar_box_title"><?php echo $outage->get_title(); ?></div>
+        <div class="auth_outage_warningbar_box_message">
+            <span id="auth_outage_warningbar_countdown"><?php echo $message; ?></span>
+            <small>
+                [<?php echo html_writer::link(
+                    new moodle_url('/auth/outage/info.php'),
+                    get_string('readmore', 'auth_outage'),
+                    ['target' => 'outage']
+                ); ?>]
+            </small>
+        </div>
+    </div>
+</div>
+
+<script>
+    // Internet Explorer 8 fix.
+    if (!Date.now) {
+        Date.now = function () {
+            return new Date().getTime();
+        }
+    }
+
+    // Define outage object.
+    var auth_outage_countdown = {
+        timer: null
+        , countdown: <?php echo($outage->starttime - time()); ?>
+        , clienttime: Date.now()
+        , init: function () {
+            this.span = document.getElementById('auth_outage_warningbar_countdown');
+            this.text = this.span.innerHTML;
+            this.tick();
+            var $this = this;
+            this.timer = setInterval(function () {
+                $this.tick();
+            }, 1000);
+        }
+        , tick: function () {
+            var elapsed = Math.round((Date.now() - this.clienttime) / 1000);
+            var missing = this.countdown - elapsed;
+            if (missing <= 0) {
+                clearInterval(this.timer);
+                location.href = '<?php echo new \moodle_url('/auth/outage/info.php'); ?>';
+            }
+            else {
+                this.span.innerHTML = this.text.replace('{{countdown}}', this.seconds2hms(missing));
+            }
+        }
+        , seconds2hms: function (seconds) {
+            var minutes = Math.floor(seconds / 60);
+            var hours = Math.floor(minutes / 60);
+            seconds %= 60;
+            minutes %= 60;
+            // Cross-browser simple solution for padding zeroes.
+            if (minutes < 10) {
+                minutes = "0" + minutes;
+            }
+            if (seconds < 10) {
+                seconds = "0" + seconds;
+            }
+            return hours + ':' + minutes + ':' + seconds;
+        }
+    };
+    auth_outage_countdown.init();
+</script>
+
+<div class="auth_outage_warningbar_spacer">&nbsp;</div>