etc/status/public_html/app.js - github/openstack-infra/zuul - Gitiles

 // Client script for Zuul status page
 //
 // Copyright 2012 OpenStack Foundation
 // Copyright 2013 Timo Tijhof
 // Copyright 2013 Wikimedia Foundation
 // Copyright 2014 Rackspace Australia
 //
 // Licensed under the Apache License, Version 2.0 (the "License"); you may
 // not use this file except in compliance with the License. You may obtain
 // a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 // License for the specific language governing permissions and limitations
 // under the License.
 'use strict';

 (function ($) {
     var $container, $msg, $indicator, $queueInfo, $queueEventsNum,
         $queueResultsNum, $pipelines, $jq;
     var xhr, zuul,
         current_filter = '',
         demo = location.search.match(/[?&]demo=([^?&]*)/),
         source_url = location.search.match(/[?&]source_url=([^?&]*)/),
         source = demo ?
             './status-' + (demo[1] || 'basic') + '.json-sample' :
             'status.json';
     source = source_url ? source_url[1] : source;

     function set_cookie(name, value) {
         document.cookie = name + '=' + value + '; path=/';
     }

     function read_cookie(name, default_value) {
         var nameEQ = name + '=';
         var ca = document.cookie.split(';');
         for(var i=0;i < ca.length;i++) {
             var c = ca[i];
             while (c.charAt(0) === ' ') {
                 c = c.substring(1, c.length);
             }
             if (c.indexOf(nameEQ) === 0) {
                 return c.substring(nameEQ.length, c.length);
             }
         }
         return default_value;
     }


     zuul = {
         enabled: true,
         collapsed_exceptions: [],

         schedule: function () {
             if (!zuul.enabled) {
                 setTimeout(zuul.schedule, 5000);
                 return;
             }
             zuul.update().complete(function () {
                 setTimeout(zuul.schedule, 5000);
             });
         },

         /** @return {jQuery.Promise} */
         update: function () {
             // Cancel the previous update if it hasn't completed yet.
             if (xhr) {
                 xhr.abort();
             }

             zuul.emit('update-start');

             xhr = $.getJSON(source)
                 .done(function (data) {
                     if ('message' in data) {
                         $msg.removeClass('alert-danger').addClass('alert-info');
                         $msg.text(data.message);
                         $msg.show();
                     } else {
                         $msg.empty();
                         $msg.hide();
                     }

                     if ('zuul_version' in data) {
                         $('#zuul-version-span').text(data.zuul_version);
                     }
                     if ('last_reconfigured' in data) {
                         var last_reconfigured =
                             new Date(data.last_reconfigured);
                         $('#last-reconfigured-span').text(
                             last_reconfigured.toString());
                     }

                     $pipelines.html('');
                     $.each(data.pipelines, function (i, pipeline) {
                         $pipelines.append(zuul.format.pipeline(pipeline));
                     });

                     $queueEventsNum.text(
                         data.trigger_event_queue ?
                             data.trigger_event_queue.length : '0'
                     );
                     $queueResultsNum.text(
                         data.result_event_queue ?
                             data.result_event_queue.length : '0'
                     );
                 })
                 .fail(function (err, jqXHR, errMsg) {
                     $msg.text(source + ': ' + errMsg).show();
                     $msg.removeClass('zuul-msg-wrap-off');
                 })
                 .complete(function () {
                     xhr = undefined;
                     zuul.emit('update-end');
                 });

             return xhr;
         },

         format: {
             job: function(job) {
                 var $job_line = $('<span />');

                 if (job.url !== null) {
                     $job_line.append(
                         $('<a />')
                             .addClass('zuul-job-name')
                             .attr('href', job.url)
                             .text(job.name)
                     );
                 }
                 else {
                     $job_line.append(
                         $('<span />')
                             .addClass('zuul-job-name')
                             .text(job.name)
                     );
                 }

                 $job_line.append(zuul.format.job_status(job));

                 if (job.voting === false) {
                     $job_line.append(
                         $(' <small />')
                             .addClass('zuul-non-voting-desc')
                             .text(' (non-voting)')
                     );
                 }

                 return $job_line;
             },

             job_status: function(job) {
                 var result = job.result ? job.result.toLowerCase() : null;
                 if (result === null) {
                     result = job.url ? 'in progress' : 'queued';
                 }

                 if (result === 'in progress') {
                     return zuul.format.job_progress_bar(job.elapsed_time,
                                                         job.remaining_time);
                 }
                 else {
                     return zuul.format.status_label(result);
                 }
             },

             status_label: function(result) {
                 var $status = $('<span />');
                 $status.addClass('zuul-job-result label');

                 switch (result) {
                     case 'success':
                         $status.addClass('label-success');
                         break;
                     case 'failure':
                         $status.addClass('label-danger');
                         break;
                     case 'unstable':
                         $status.addClass('label-warning');
                         break;
                     case 'in progress':
                     case 'queued':
                     case 'lost':
                         $status.addClass('label-default');
                         break;
                 }
                 $status.text(result);
                 return $status;
             },

             job_progress_bar: function(elapsed_time, remaining_time) {
                 var progress_percent = 100 * (elapsed_time / (elapsed_time +
                                                               remaining_time));
                 var $bar_inner = $('<div />')
                     .addClass('progress-bar')
                     .attr('role', 'progressbar')
                     .attr('aria-valuenow', 'progressbar')
                     .attr('aria-valuemin', progress_percent)
                     .attr('aria-valuemin', '0')
                     .attr('aria-valuemax', '100')
                     .css('width', progress_percent + '%');

                 var $bar_outter = $('<div />')
                     .addClass('progress zuul-job-result')
                     .append($bar_inner);

                 return $bar_outter;
             },

             enqueue_time: function(ms) {
                 // Special format case for enqueue time to add style
                 var hours = 60 * 60 * 1000;
                 var now = Date.now();
                 var delta = now - ms;
                 var status = 'text-success';
                 var text = zuul.format.time(delta, true);
                 if (delta > (4 * hours)) {
                     status = 'text-danger';
                 } else if (delta > (2 * hours)) {
                     status = 'text-warning';
                 }
                 return '<span class="' + status + '">' + text + '</span>';
             },

             time: function(ms, words) {
                 if (typeof(words) === 'undefined') {
                     words = false;
                 }
                 var seconds = (+ms)/1000;
                 var minutes = Math.floor(seconds/60);
                 var hours = Math.floor(minutes/60);
                 seconds = Math.floor(seconds % 60);
                 minutes = Math.floor(minutes % 60);
                 var r = '';
                 if (words) {
                     if (hours) {
                         r += hours;
                         r += ' hr ';
                     }
                     r += minutes + ' min';
                 } else {
                     if (hours < 10) {
                         r += '0';
                     }
                     r += hours + ':';
                     if (minutes < 10) {
                         r += '0';
                     }
                     r += minutes + ':';
                     if (seconds < 10) {
                         r += '0';
                     }
                     r += seconds;
                 }
                 return r;
             },

             change_total_progress_bar: function(change) {
                 var job_percent = Math.floor(100 / change.jobs.length);
                 var $bar_outter = $('<div />')
                     .addClass('progress zuul-change-total-result');

                 $.each(change.jobs, function (i, job) {
                     var result = job.result ? job.result.toLowerCase() : null;
                     if (result === null) {
                         result = job.url ? 'in progress' : 'queued';
                     }

                     if (result !== 'queued') {
                         var $bar_inner = $('<div />')
                             .addClass('progress-bar');

                         switch (result) {
                             case 'success':
                                 $bar_inner.addClass('progress-bar-success');
                                 break;
                             case 'lost':
                             case 'failure':
                                 $bar_inner.addClass('progress-bar-danger');
                                 break;
                             case 'unstable':
                                 $bar_inner.addClass('progress-bar-warning');
                                 break;
                             case 'in progress':
                             case 'queued':
                                 break;
                         }
                         $bar_inner.attr('title', job.name)
                             .css('width', job_percent + '%');
                         $bar_outter.append($bar_inner);
                     }
                 });
                 return $bar_outter;
             },

             change_header: function(change) {
                 var change_id = change.id || 'NA';
                 if (change_id.length === 40) {
                     change_id = change_id.substr(0, 7);
                 }

                 var $change_link = $('<small />');
                 if (change.url !== null) {
                     $change_link.append(
                         $('<a />').attr('href', change.url).text(change.id)
                     );
                 }
                 else {
                     $change_link.text(change_id);
                 }

                 var $change_progress_row_left = $('<div />')
                     .addClass('col-xs-3')
                     .append($change_link);
                 var $change_progress_row_right = $('<div />')
                     .addClass('col-xs-9')
                     .append(zuul.format.change_total_progress_bar(change));

                 var $change_progress_row = $('<div />')
                     .addClass('row')
                     .append($change_progress_row_left)
                     .append($change_progress_row_right);

                 var $project_span = $('<span />')
                     .addClass('change_project')
                     .text(change.project);

                 var $left = $('<div />')
                     .addClass('col-xs-8')
                     .append($project_span, $change_progress_row);

                 var remaining_time = zuul.format.time(
                         change.remaining_time, true);
                 var enqueue_time = zuul.format.enqueue_time(
                         change.enqueue_time);
                 var $remaining_time = $('<small />').addClass('time')
                     .attr('title', 'Remaining Time').html(remaining_time);
                 var $enqueue_time = $('<small />').addClass('time')
                     .attr('title', 'Elapsed Time').html(enqueue_time);

                 var $right = $('<div />')
                     .addClass('col-xs-4 text-right')
                     .append($remaining_time, $('<br />'), $enqueue_time);

                 var $header = $('<div />')
                     .addClass('row')
                     .append($left, $right);
                 return $header;
             },

             change_list: function(jobs) {
                 var $list = $('<ul />')
                     .addClass('list-group zuul-patchset-body');

                 $.each(jobs, function (i, job) {
                     var $item = $('<li />')
                         .addClass('list-group-item')
                         .addClass('zuul-change-job')
                         .append(zuul.format.job(job));
                     $list.append($item);
                 });

                 return $list;
             },

             change_panel: function (change) {
                 var $header = $('<div />')
                     .addClass('panel-heading zuul-patchset-header')
                     .append(zuul.format.change_header(change));

                 var panel_id = change.id ? change.id.replace(',', '_')
                                          : change.project.replace('/', '_') +
                                            '-' + change.enqueue_time;
                 var $panel = $('<div />')
                     .attr('id', panel_id)
                     .addClass('panel panel-default zuul-change')
                     .append($header)
                     .append(zuul.format.change_list(change.jobs));

                 $header.click(zuul.toggle_patchset);
                 return $panel;
             },

             change_status_icon: function(change) {
                 var icon_name = 'green.png';
                 var icon_title = 'Succeeding';

                 if (change.active !== true) {
                     // Grey icon
                     icon_name = 'grey.png';
                     icon_title = 'Waiting until closer to head of queue to' +
                         ' start jobs';
                 }
                 else if (change.failing_reasons &&
                          change.failing_reasons.length > 0) {
                     var reason = change.failing_reasons.join(', ');
                     icon_title = 'Failing because ' + reason;
                     if (reason.match(/merge conflict/)) {
                         // Black icon
                         icon_name = 'black.png';
                     }
                     else {
                         // Red icon
                         icon_name = 'red.png';
                     }
                 }

                 var $icon = $('<img />')
                     .attr('src', 'images/' + icon_name)
                     .attr('title', icon_title)
                     .css('margin-top', '-6px');

                 return $icon;
             },

             change_with_status_tree: function(change, change_queue) {
                 var $change_row = $('<tr />');

                 for (var i = 0; i < change_queue._tree_columns; i++) {
                     var $tree_cell  = $('<td />')
                         .css('height', '100%')
                         .css('padding', '0 0 10px 0')
                         .css('margin', '0')
                         .css('width', '16px')
                         .css('min-width', '16px')
                         .css('overflow', 'hidden')
                         .css('vertical-align', 'top');

                     if (i < change._tree.length && change._tree[i] !== null) {
                         $tree_cell.css('background-image',
                                        'url(\'images/line.png\')')
                             .css('background-repeat', 'repeat-y');
                     }

                     if (i === change._tree_index) {
                         $tree_cell.append(
                             zuul.format.change_status_icon(change));
                     }
                     if (change._tree_branches.indexOf(i) !== -1) {
                         var $image = $('<img />')
                             .css('vertical-align', 'baseline');
                         if (change._tree_branches.indexOf(i) ===
                             change._tree_branches.length - 1) {
                             // Angle line
                             $image.attr('src', 'images/line-angle.png');
                         }
                         else {
                             // T line
                             $image.attr('src', 'images/line-t.png');
                         }
                         $tree_cell.append($image);
                     }
                     $change_row.append($tree_cell);
                 }

                 var change_width = 360 - 16*change_queue._tree_columns;
                 var $change_column = $('<td />')
                     .css('width', change_width + 'px')
                     .addClass('zuul-change-cell')
                     .append(zuul.format.change_panel(change));

                 $change_row.append($change_column);

                 var $change_table = $('<table />')
                     .addClass('zuul-change-box')
                     .css('-moz-box-sizing', 'content-box')
                     .css('box-sizing', 'content-box')
                     .append($change_row);

                 return $change_table;
             },

             pipeline: function (pipeline) {
                 var count = zuul.create_tree(pipeline);
                 var $html = $('<div />')
                     .addClass('zuul-pipeline col-md-4')
                     .append(
                         $('<h3 />')
                             .css('vertical-align', 'middle')
                             .text(pipeline.name)
                             .append(
                                 $('<span />')
                                     .addClass('badge pull-right')
                                     .css('vertical-align', 'middle')
                                     .css('margin-top', '0.5em')
                                     .text(count)
                             )
                     );

                 if (typeof pipeline.description === 'string') {
                     $html.append(
                         $('<p />').append(
                             $('<small />').text(pipeline.description)
                         )
                     );
                 }

                 $.each(pipeline.change_queues,
                        function (queue_i, change_queue) {
                     $.each(change_queue.heads, function (head_i, changes) {
                         if (pipeline.change_queues.length > 1 &&
                             head_i === 0) {
                             var name = change_queue.name;
                             var short_name = name;
                             if (short_name.length > 32) {
                                 short_name = short_name.substr(0, 32) + '...';
                             }
                             $html.append(
                                 $('<p />')
                                     .text('Queue: ')
                                     .append(
                                         $('<abbr />')
                                             .attr('title', name)
                                             .text(short_name)
                                     )
                             );
                         }

                         $.each(changes, function (change_i, change) {
                             var $change_box =
                                 zuul.format.change_with_status_tree(
                                     change, change_queue);
                             $html.append($change_box);
                             zuul.display_patchset($change_box);
                         });
                     });
                 });
                 return $html;
             },

             filter_form_group: function() {
                 // Update the filter form with a clear button if required

                 var $label = $('<label />')
                     .addClass('control-label')
                     .attr('for', 'filter_string')
                     .text('Filters')
                     .css('padding-right', '0.5em');

                 var $input = $('<input />')
                     .attr('type', 'text')
                     .attr('id', 'filter_string')
                     .addClass('form-control')
                     .attr('title',
                           'project(s), pipeline(s) or review(s) comma ' +
                           'separated')
                     .attr('value', current_filter);

                 $input.change(zuul.handle_filter_change);

                 var $clear_icon = $('<span />')
                     .addClass('form-control-feedback')
                     .addClass('glyphicon glyphicon-remove-circle')
                     .attr('id', 'filter_form_clear_box')
                     .attr('title', 'clear filter')
                     .css('cursor', 'pointer');

                 $clear_icon.click(function() {
                     $('#filter_string').val('').change();
                 });

                 if (current_filter === '') {
                     $clear_icon.hide();
                 }

                 var $form_group = $('<div />')
                     .addClass('form-group has-feedback')
                     .append($label, $input, $clear_icon);
                 return $form_group;
             },

             expand_form_group: function() {
                 var expand_by_default = (
                     read_cookie('zuul_expand_by_default', false) === 'true');

                 var $checkbox = $('<input />')
                     .attr('type', 'checkbox')
                     .attr('id', 'expand_by_default')
                     .prop('checked', expand_by_default)
                     .change(zuul.handle_expand_by_default);

                 var $label = $('<label />')
                     .css('padding-left', '1em')
                     .html('Expand by default: ')
                     .append($checkbox);

                 var $form_group = $('<div />')
                     .addClass('checkbox')
                     .append($label);
                 return $form_group;
             },

             control_form: function() {
                 // Build the filter form filling anything from cookies

                 var $control_form = $('<form />')
                     .attr('role', 'form')
                     .addClass('form-inline')
                     .submit(zuul.handle_filter_change);

                 $control_form
                     .append(zuul.format.filter_form_group())
                     .append(zuul.format.expand_form_group());

                 return $control_form;
             },
         },

         emit: function () {
             $jq.trigger.apply($jq, arguments);
             return this;
         },
         on: function () {
             $jq.on.apply($jq, arguments);
             return this;
         },
         one: function () {
             $jq.one.apply($jq, arguments);
             return this;
         },

         toggle_patchset: function(e) {
             // Toggle showing/hiding the patchset when the header is clicked
             // Grab the patchset panel
             var $panel = $(e.target).parents('.zuul-change');
             var $body = $panel.children('.zuul-patchset-body');
             $body.toggle(200);
             var collapsed_index = zuul.collapsed_exceptions.indexOf(
                 $panel.attr('id'));
             if (collapsed_index === -1 ) {
                 // Currently not an exception, add it to list
                 zuul.collapsed_exceptions.push($panel.attr('id'));
             }
             else {
                 // Currently an except, remove from exceptions
                 zuul.collapsed_exceptions.splice(collapsed_index, 1);
             }
         },

         display_patchset: function($change_box, animate) {
             // Determine if to show or hide the patchset and/or the results
             // when loaded

             // See if we should hide the body/results
             var $panel = $change_box.find('.zuul-change');
             var panel_change = $panel.attr('id');
             var $body = $panel.children('.zuul-patchset-body');
             var expand_by_default = $('#expand_by_default').prop('checked');

             var collapsed_index = zuul.collapsed_exceptions.indexOf(panel_change);

             if (expand_by_default && collapsed_index === -1 ||
                 !expand_by_default && collapsed_index !== -1) {
                 // Expand by default, or is an exception
                 $body.show(animate);
             }
             else {
                 $body.hide(animate);
             }

             // Check if we should hide the whole panel
             var panel_project = $panel.find('.change_project').text()
                 .toLowerCase();


             var panel_pipeline = $change_box.parents('.zuul-pipeline')
                 .children('h3').html().toLowerCase();

             if (current_filter !== '') {
                 var show_panel = false;
                 var filter = current_filter.trim().split(/[\s,]+/);
                 $.each(filter, function(index, f_val) {
                     if (f_val !== '') {
                         f_val = f_val.toLowerCase();
                         if (panel_project.indexOf(f_val) !== -1 ||
                             panel_pipeline.indexOf(f_val) !== -1 ||
                             panel_change.indexOf(f_val) !== -1) {
                             show_panel = true;
                         }
                     }
                 });
                 if (show_panel === true) {
                     $change_box.show(animate);
                 }
                 else {
                     $change_box.hide(animate);
                 }
             }
             else {
                 $change_box.show(animate);
             }
         },

         handle_filter_change: function() {
             // Update the filter and save it to a cookie
             current_filter = $('#filter_string').val();
             set_cookie('zuul_filter_string', current_filter);
             if (current_filter === '') {
                 $('#filter_form_clear_box').hide();
             }
             else {
                 $('#filter_form_clear_box').show();
             }

             $('.zuul-change-box').each(function(index, obj) {
                 var $change_box = $(obj);
                 zuul.display_patchset($change_box, 200);
             });
             return false;
         },

         handle_expand_by_default: function(e) {
             // Handle toggling expand by default
             set_cookie('zuul_expand_by_default', e.target.checked);
             zuul.collapsed_exceptions = [];
             $('.zuul-change-box').each(function(index, obj) {
                 var $change_box = $(obj);
                 zuul.display_patchset($change_box, 200);
             });
         },

         create_tree: function(pipeline) {
             var count = 0;
             var pipeline_max_tree_columns = 1;
             $.each(pipeline.change_queues, function(change_queue_i,
                                                        change_queue) {
                 var tree = [];
                 var max_tree_columns = 1;
                 var changes = [];
                 var last_tree_length = 0;
                 $.each(change_queue.heads, function(head_i, head) {
                     $.each(head, function(change_i, change) {
                         changes[change.id] = change;
                         change._tree_position = change_i;
                     });
                 });
                 $.each(change_queue.heads, function(head_i, head) {
                     $.each(head, function(change_i, change) {
                         count += 1;
                         var idx = tree.indexOf(change.id);
                         if (idx > -1) {
                             change._tree_index = idx;
                             // remove...
                             tree[idx] = null;
                             while (tree[tree.length - 1] === null) {
                                 tree.pop();
                             }
                         } else {
                             change._tree_index = 0;
                         }
                         change._tree_branches = [];
                         change._tree = [];
                         if (typeof(change.items_behind) === 'undefined') {
                             change.items_behind = [];
                         }
                         change.items_behind.sort(function(a, b) {
                             return (changes[b]._tree_position -
                                     changes[a]._tree_position);
                         });
                         $.each(change.items_behind, function(i, id) {
                             tree.push(id);
                             if (tree.length>last_tree_length &&
                                 last_tree_length > 0) {
                                 change._tree_branches.push(
                                     tree.length - 1);
                             }
                         });
                         if (tree.length > max_tree_columns) {
                             max_tree_columns = tree.length;
                         }
                         if (tree.length > pipeline_max_tree_columns) {
                             pipeline_max_tree_columns = tree.length;
                         }
                         change._tree = tree.slice(0);  // make a copy
                         last_tree_length = tree.length;
                     });
                 });
                 change_queue._tree_columns = max_tree_columns;
             });
             pipeline._tree_columns = pipeline_max_tree_columns;
             return count;
         },
     };

     current_filter = read_cookie('zuul_filter_string', current_filter);

     $jq = $(zuul);

     $jq.on('update-start', function () {
         $container.addClass('zuul-container-loading');
         $indicator.addClass('zuul-spinner-on');
     });

     $jq.on('update-end', function () {
         $container.removeClass('zuul-container-loading');
         setTimeout(function () {
             $indicator.removeClass('zuul-spinner-on');
         }, 500);
     });

     $jq.one('update-end', function () {
         // Do this asynchronous so that if the first update adds a message, it
         // will not animate while we fade in the content. Instead it simply
         // appears with the rest of the content.
         setTimeout(function () {
             // Fade in the content
             $container.addClass('zuul-container-ready');
         });
     });

     $(function ($) {
         $msg = $('<div />').addClass('alert').hide();
         $indicator = $('<button class="btn pull-right zuul-spinner">' +
                        'updating ' +
                        '<span class="glyphicon glyphicon-refresh"></span>' +
                        '</button>');
         $queueInfo = $('<p>Queue lengths: <span>0</span> events, ' +
                        '<span>0</span> results.</p>');
         $queueEventsNum = $queueInfo.find('span').eq(0);
         $queueResultsNum = $queueEventsNum.next();

         var $control_form = zuul.format.control_form();

         $pipelines = $('<div class="row"></div>');
         var $zuulVersion = $('<p>Zuul version: <span id="zuul-version-span">' +
                          '</span></p>');
         var $lastReconf = $('<p>Last reconfigured: ' +
                         '<span id="last-reconfigured-span"></span></p>');

         $container = $('#zuul-container').append($msg, $indicator,
                                                  $queueInfo, $control_form,
                                                  $pipelines, $zuulVersion,
                                                  $lastReconf);

         zuul.schedule();

         $(document).on({
             'show.visibility': function () {
                 zuul.enabled = true;
                 zuul.update();
             },
             'hide.visibility': function () {
                 zuul.enabled = false;
             }
         });
     });
 }(jQuery));
	// Client script for Zuul status page
	//
	// Copyright 2012 OpenStack Foundation
	// Copyright 2013 Timo Tijhof
	// Copyright 2013 Wikimedia Foundation
	// Copyright 2014 Rackspace Australia
	//
	// Licensed under the Apache License, Version 2.0 (the "License"); you may
	// not use this file except in compliance with the License. You may obtain
	// a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	// License for the specific language governing permissions and limitations
	// under the License.
	'use strict';

	(function ($) {
	var $container, $msg, $indicator, $queueInfo, $queueEventsNum,
	$queueResultsNum, $pipelines, $jq;
	var xhr, zuul,
	current_filter = '',
	demo = location.search.match(/[?&]demo=([^?&]*)/),
	source_url = location.search.match(/[?&]source_url=([^?&]*)/),
	source = demo ?
	'./status-' + (demo[1] \|\| 'basic') + '.json-sample' :
	'status.json';
	source = source_url ? source_url[1] : source;

	function set_cookie(name, value) {
	document.cookie = name + '=' + value + '; path=/';
	}

	function read_cookie(name, default_value) {
	var nameEQ = name + '=';
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
	var c = ca[i];
	while (c.charAt(0) === ' ') {
	c = c.substring(1, c.length);
	}
	if (c.indexOf(nameEQ) === 0) {
	return c.substring(nameEQ.length, c.length);
	}
	}
	return default_value;
	}


	zuul = {
	enabled: true,
	collapsed_exceptions: [],

	schedule: function () {
	if (!zuul.enabled) {
	setTimeout(zuul.schedule, 5000);
	return;
	}
	zuul.update().complete(function () {
	setTimeout(zuul.schedule, 5000);
	});
	},

	/** @return {jQuery.Promise} */
	update: function () {
	// Cancel the previous update if it hasn't completed yet.
	if (xhr) {
	xhr.abort();
	}

	zuul.emit('update-start');

	xhr = $.getJSON(source)
	.done(function (data) {
	if ('message' in data) {
	$msg.removeClass('alert-danger').addClass('alert-info');
	$msg.text(data.message);
	$msg.show();
	} else {
	$msg.empty();
	$msg.hide();
	}

	if ('zuul_version' in data) {
	$('#zuul-version-span').text(data.zuul_version);
	}
	if ('last_reconfigured' in data) {
	var last_reconfigured =
	new Date(data.last_reconfigured);
	$('#last-reconfigured-span').text(
	last_reconfigured.toString());
	}

	$pipelines.html('');
	$.each(data.pipelines, function (i, pipeline) {
	$pipelines.append(zuul.format.pipeline(pipeline));
	});

	$queueEventsNum.text(
	data.trigger_event_queue ?
	data.trigger_event_queue.length : '0'
	);
	$queueResultsNum.text(
	data.result_event_queue ?
	data.result_event_queue.length : '0'
	);
	})
	.fail(function (err, jqXHR, errMsg) {
	$msg.text(source + ': ' + errMsg).show();
	$msg.removeClass('zuul-msg-wrap-off');
	})
	.complete(function () {
	xhr = undefined;
	zuul.emit('update-end');
	});

	return xhr;
	},

	format: {
	job: function(job) {
	var $job_line = $('<span />');

	if (job.url !== null) {
	$job_line.append(
	$('<a />')
	.addClass('zuul-job-name')
	.attr('href', job.url)
	.text(job.name)
	);
	}
	else {
	$job_line.append(
	$('<span />')
	.addClass('zuul-job-name')
	.text(job.name)
	);
	}

	$job_line.append(zuul.format.job_status(job));

	if (job.voting === false) {
	$job_line.append(
	$(' <small />')
	.addClass('zuul-non-voting-desc')
	.text(' (non-voting)')
	);
	}

	return $job_line;
	},

	job_status: function(job) {
	var result = job.result ? job.result.toLowerCase() : null;
	if (result === null) {
	result = job.url ? 'in progress' : 'queued';
	}

	if (result === 'in progress') {
	return zuul.format.job_progress_bar(job.elapsed_time,
	job.remaining_time);
	}
	else {
	return zuul.format.status_label(result);
	}
	},

	status_label: function(result) {
	var $status = $('<span />');
	$status.addClass('zuul-job-result label');

	switch (result) {
	case 'success':
	$status.addClass('label-success');
	break;
	case 'failure':
	$status.addClass('label-danger');
	break;
	case 'unstable':
	$status.addClass('label-warning');
	break;
	case 'in progress':
	case 'queued':
	case 'lost':
	$status.addClass('label-default');
	break;
	}
	$status.text(result);
	return $status;
	},

	job_progress_bar: function(elapsed_time, remaining_time) {
	var progress_percent = 100 * (elapsed_time / (elapsed_time +
	remaining_time));
	var $bar_inner = $('<div />')
	.addClass('progress-bar')
	.attr('role', 'progressbar')
	.attr('aria-valuenow', 'progressbar')
	.attr('aria-valuemin', progress_percent)
	.attr('aria-valuemin', '0')
	.attr('aria-valuemax', '100')
	.css('width', progress_percent + '%');

	var $bar_outter = $('<div />')
	.addClass('progress zuul-job-result')
	.append($bar_inner);

	return $bar_outter;
	},

	enqueue_time: function(ms) {
	// Special format case for enqueue time to add style
	var hours = 60 * 60 * 1000;
	var now = Date.now();
	var delta = now - ms;
	var status = 'text-success';
	var text = zuul.format.time(delta, true);
	if (delta > (4 * hours)) {
	status = 'text-danger';
	} else if (delta > (2 * hours)) {
	status = 'text-warning';
	}
	return '<span class="' + status + '">' + text + '</span>';
	},

	time: function(ms, words) {
	if (typeof(words) === 'undefined') {
	words = false;
	}
	var seconds = (+ms)/1000;
	var minutes = Math.floor(seconds/60);
	var hours = Math.floor(minutes/60);
	seconds = Math.floor(seconds % 60);
	minutes = Math.floor(minutes % 60);
	var r = '';
	if (words) {
	if (hours) {
	r += hours;
	r += ' hr ';
	}
	r += minutes + ' min';
	} else {
	if (hours < 10) {
	r += '0';
	}
	r += hours + ':';
	if (minutes < 10) {
	r += '0';
	}
	r += minutes + ':';
	if (seconds < 10) {
	r += '0';
	}
	r += seconds;
	}
	return r;
	},

	change_total_progress_bar: function(change) {
	var job_percent = Math.floor(100 / change.jobs.length);
	var $bar_outter = $('<div />')
	.addClass('progress zuul-change-total-result');

	$.each(change.jobs, function (i, job) {
	var result = job.result ? job.result.toLowerCase() : null;
	if (result === null) {
	result = job.url ? 'in progress' : 'queued';
	}

	if (result !== 'queued') {
	var $bar_inner = $('<div />')
	.addClass('progress-bar');

	switch (result) {
	case 'success':
	$bar_inner.addClass('progress-bar-success');
	break;
	case 'lost':
	case 'failure':
	$bar_inner.addClass('progress-bar-danger');
	break;
	case 'unstable':
	$bar_inner.addClass('progress-bar-warning');
	break;
	case 'in progress':
	case 'queued':
	break;
	}
	$bar_inner.attr('title', job.name)
	.css('width', job_percent + '%');
	$bar_outter.append($bar_inner);
	}
	});
	return $bar_outter;
	},

	change_header: function(change) {
	var change_id = change.id \|\| 'NA';
	if (change_id.length === 40) {
	change_id = change_id.substr(0, 7);
	}

	var $change_link = $('<small />');
	if (change.url !== null) {
	$change_link.append(
	$('<a />').attr('href', change.url).text(change.id)
	);
	}
	else {
	$change_link.text(change_id);
	}

	var $change_progress_row_left = $('<div />')
	.addClass('col-xs-3')
	.append($change_link);
	var $change_progress_row_right = $('<div />')
	.addClass('col-xs-9')
	.append(zuul.format.change_total_progress_bar(change));

	var $change_progress_row = $('<div />')
	.addClass('row')
	.append($change_progress_row_left)
	.append($change_progress_row_right);

	var $project_span = $('<span />')
	.addClass('change_project')
	.text(change.project);

	var $left = $('<div />')
	.addClass('col-xs-8')
	.append($project_span, $change_progress_row);

	var remaining_time = zuul.format.time(
	change.remaining_time, true);
	var enqueue_time = zuul.format.enqueue_time(
	change.enqueue_time);
	var $remaining_time = $('<small />').addClass('time')
	.attr('title', 'Remaining Time').html(remaining_time);
	var $enqueue_time = $('<small />').addClass('time')
	.attr('title', 'Elapsed Time').html(enqueue_time);

	var $right = $('<div />')
	.addClass('col-xs-4 text-right')
	.append($remaining_time, $('<br />'), $enqueue_time);

	var $header = $('<div />')
	.addClass('row')
	.append($left, $right);
	return $header;
	},

	change_list: function(jobs) {
	var $list = $('<ul />')
	.addClass('list-group zuul-patchset-body');

	$.each(jobs, function (i, job) {
	var $item = $('<li />')
	.addClass('list-group-item')
	.addClass('zuul-change-job')
	.append(zuul.format.job(job));
	$list.append($item);
	});

	return $list;
	},

	change_panel: function (change) {
	var $header = $('<div />')
	.addClass('panel-heading zuul-patchset-header')
	.append(zuul.format.change_header(change));

	var panel_id = change.id ? change.id.replace(',', '_')
	: change.project.replace('/', '_') +
	'-' + change.enqueue_time;
	var $panel = $('<div />')
	.attr('id', panel_id)
	.addClass('panel panel-default zuul-change')
	.append($header)
	.append(zuul.format.change_list(change.jobs));

	$header.click(zuul.toggle_patchset);
	return $panel;
	},

	change_status_icon: function(change) {
	var icon_name = 'green.png';
	var icon_title = 'Succeeding';

	if (change.active !== true) {
	// Grey icon
	icon_name = 'grey.png';
	icon_title = 'Waiting until closer to head of queue to' +
	' start jobs';
	}
	else if (change.failing_reasons &&
	change.failing_reasons.length > 0) {
	var reason = change.failing_reasons.join(', ');
	icon_title = 'Failing because ' + reason;
	if (reason.match(/merge conflict/)) {
	// Black icon
	icon_name = 'black.png';
	}
	else {
	// Red icon
	icon_name = 'red.png';
	}
	}

	var $icon = $('<img />')
	.attr('src', 'images/' + icon_name)
	.attr('title', icon_title)
	.css('margin-top', '-6px');

	return $icon;
	},

	change_with_status_tree: function(change, change_queue) {
	var $change_row = $('<tr />');

	for (var i = 0; i < change_queue._tree_columns; i++) {
	var $tree_cell = $('<td />')
	.css('height', '100%')
	.css('padding', '0 0 10px 0')
	.css('margin', '0')
	.css('width', '16px')
	.css('min-width', '16px')
	.css('overflow', 'hidden')
	.css('vertical-align', 'top');

	if (i < change._tree.length && change._tree[i] !== null) {
	$tree_cell.css('background-image',
	'url(\'images/line.png\')')
	.css('background-repeat', 'repeat-y');
	}

	if (i === change._tree_index) {
	$tree_cell.append(
	zuul.format.change_status_icon(change));
	}
	if (change._tree_branches.indexOf(i) !== -1) {
	var $image = $('<img />')
	.css('vertical-align', 'baseline');
	if (change._tree_branches.indexOf(i) ===
	change._tree_branches.length - 1) {
	// Angle line
	$image.attr('src', 'images/line-angle.png');
	}
	else {
	// T line
	$image.attr('src', 'images/line-t.png');
	}
	$tree_cell.append($image);
	}
	$change_row.append($tree_cell);
	}

	var change_width = 360 - 16*change_queue._tree_columns;
	var $change_column = $('<td />')
	.css('width', change_width + 'px')
	.addClass('zuul-change-cell')
	.append(zuul.format.change_panel(change));

	$change_row.append($change_column);

	var $change_table = $('<table />')
	.addClass('zuul-change-box')
	.css('-moz-box-sizing', 'content-box')
	.css('box-sizing', 'content-box')
	.append($change_row);

	return $change_table;
	},

	pipeline: function (pipeline) {
	var count = zuul.create_tree(pipeline);
	var $html = $('<div />')
	.addClass('zuul-pipeline col-md-4')
	.append(
	$('<h3 />')
	.css('vertical-align', 'middle')
	.text(pipeline.name)
	.append(
	$('<span />')
	.addClass('badge pull-right')
	.css('vertical-align', 'middle')
	.css('margin-top', '0.5em')
	.text(count)
	)
	);

	if (typeof pipeline.description === 'string') {
	$html.append(
	$('<p />').append(
	$('<small />').text(pipeline.description)
	)
	);
	}

	$.each(pipeline.change_queues,
	function (queue_i, change_queue) {
	$.each(change_queue.heads, function (head_i, changes) {
	if (pipeline.change_queues.length > 1 &&
	head_i === 0) {
	var name = change_queue.name;
	var short_name = name;
	if (short_name.length > 32) {
	short_name = short_name.substr(0, 32) + '...';
	}
	$html.append(
	$('<p />')
	.text('Queue: ')
	.append(
	$('<abbr />')
	.attr('title', name)
	.text(short_name)
	)
	);
	}

	$.each(changes, function (change_i, change) {
	var $change_box =
	zuul.format.change_with_status_tree(
	change, change_queue);
	$html.append($change_box);
	zuul.display_patchset($change_box);
	});
	});
	});
	return $html;
	},

	filter_form_group: function() {
	// Update the filter form with a clear button if required

	var $label = $('<label />')
	.addClass('control-label')
	.attr('for', 'filter_string')
	.text('Filters')
	.css('padding-right', '0.5em');

	var $input = $('<input />')
	.attr('type', 'text')
	.attr('id', 'filter_string')
	.addClass('form-control')
	.attr('title',
	'project(s), pipeline(s) or review(s) comma ' +
	'separated')
	.attr('value', current_filter);

	$input.change(zuul.handle_filter_change);

	var $clear_icon = $('<span />')
	.addClass('form-control-feedback')
	.addClass('glyphicon glyphicon-remove-circle')
	.attr('id', 'filter_form_clear_box')
	.attr('title', 'clear filter')
	.css('cursor', 'pointer');

	$clear_icon.click(function() {
	$('#filter_string').val('').change();
	});

	if (current_filter === '') {
	$clear_icon.hide();
	}

	var $form_group = $('<div />')
	.addClass('form-group has-feedback')
	.append($label, $input, $clear_icon);
	return $form_group;
	},

	expand_form_group: function() {
	var expand_by_default = (
	read_cookie('zuul_expand_by_default', false) === 'true');

	var $checkbox = $('<input />')
	.attr('type', 'checkbox')
	.attr('id', 'expand_by_default')
	.prop('checked', expand_by_default)
	.change(zuul.handle_expand_by_default);

	var $label = $('<label />')
	.css('padding-left', '1em')
	.html('Expand by default: ')
	.append($checkbox);

	var $form_group = $('<div />')
	.addClass('checkbox')
	.append($label);
	return $form_group;
	},

	control_form: function() {
	// Build the filter form filling anything from cookies

	var $control_form = $('<form />')
	.attr('role', 'form')
	.addClass('form-inline')
	.submit(zuul.handle_filter_change);

	$control_form
	.append(zuul.format.filter_form_group())
	.append(zuul.format.expand_form_group());

	return $control_form;
	},
	},

	emit: function () {
	$jq.trigger.apply($jq, arguments);
	return this;
	},
	on: function () {
	$jq.on.apply($jq, arguments);
	return this;
	},
	one: function () {
	$jq.one.apply($jq, arguments);
	return this;
	},

	toggle_patchset: function(e) {
	// Toggle showing/hiding the patchset when the header is clicked
	// Grab the patchset panel
	var $panel = $(e.target).parents('.zuul-change');
	var $body = $panel.children('.zuul-patchset-body');
	$body.toggle(200);
	var collapsed_index = zuul.collapsed_exceptions.indexOf(
	$panel.attr('id'));
	if (collapsed_index === -1 ) {
	// Currently not an exception, add it to list
	zuul.collapsed_exceptions.push($panel.attr('id'));
	}
	else {
	// Currently an except, remove from exceptions
	zuul.collapsed_exceptions.splice(collapsed_index, 1);
	}
	},

	display_patchset: function($change_box, animate) {
	// Determine if to show or hide the patchset and/or the results
	// when loaded

	// See if we should hide the body/results
	var $panel = $change_box.find('.zuul-change');
	var panel_change = $panel.attr('id');
	var $body = $panel.children('.zuul-patchset-body');
	var expand_by_default = $('#expand_by_default').prop('checked');

	var collapsed_index = zuul.collapsed_exceptions.indexOf(panel_change);

	if (expand_by_default && collapsed_index === -1 \|\|
	!expand_by_default && collapsed_index !== -1) {
	// Expand by default, or is an exception
	$body.show(animate);
	}
	else {
	$body.hide(animate);
	}

	// Check if we should hide the whole panel
	var panel_project = $panel.find('.change_project').text()
	.toLowerCase();


	var panel_pipeline = $change_box.parents('.zuul-pipeline')
	.children('h3').html().toLowerCase();

	if (current_filter !== '') {
	var show_panel = false;
	var filter = current_filter.trim().split(/[\s,]+/);
	$.each(filter, function(index, f_val) {
	if (f_val !== '') {
	f_val = f_val.toLowerCase();
	if (panel_project.indexOf(f_val) !== -1 \|\|
	panel_pipeline.indexOf(f_val) !== -1 \|\|
	panel_change.indexOf(f_val) !== -1) {
	show_panel = true;
	}
	}
	});
	if (show_panel === true) {
	$change_box.show(animate);
	}
	else {
	$change_box.hide(animate);
	}
	}
	else {
	$change_box.show(animate);
	}
	},

	handle_filter_change: function() {
	// Update the filter and save it to a cookie
	current_filter = $('#filter_string').val();
	set_cookie('zuul_filter_string', current_filter);
	if (current_filter === '') {
	$('#filter_form_clear_box').hide();
	}
	else {
	$('#filter_form_clear_box').show();
	}

	$('.zuul-change-box').each(function(index, obj) {
	var $change_box = $(obj);
	zuul.display_patchset($change_box, 200);
	});
	return false;
	},

	handle_expand_by_default: function(e) {
	// Handle toggling expand by default
	set_cookie('zuul_expand_by_default', e.target.checked);
	zuul.collapsed_exceptions = [];
	$('.zuul-change-box').each(function(index, obj) {
	var $change_box = $(obj);
	zuul.display_patchset($change_box, 200);
	});
	},

	create_tree: function(pipeline) {
	var count = 0;
	var pipeline_max_tree_columns = 1;
	$.each(pipeline.change_queues, function(change_queue_i,
	change_queue) {
	var tree = [];
	var max_tree_columns = 1;
	var changes = [];
	var last_tree_length = 0;
	$.each(change_queue.heads, function(head_i, head) {
	$.each(head, function(change_i, change) {
	changes[change.id] = change;
	change._tree_position = change_i;
	});
	});
	$.each(change_queue.heads, function(head_i, head) {
	$.each(head, function(change_i, change) {
	count += 1;
	var idx = tree.indexOf(change.id);
	if (idx > -1) {
	change._tree_index = idx;
	// remove...
	tree[idx] = null;
	while (tree[tree.length - 1] === null) {
	tree.pop();
	}
	} else {
	change._tree_index = 0;
	}
	change._tree_branches = [];
	change._tree = [];
	if (typeof(change.items_behind) === 'undefined') {
	change.items_behind = [];
	}
	change.items_behind.sort(function(a, b) {
	return (changes[b]._tree_position -
	changes[a]._tree_position);
	});
	$.each(change.items_behind, function(i, id) {
	tree.push(id);
	if (tree.length>last_tree_length &&
	last_tree_length > 0) {
	change._tree_branches.push(
	tree.length - 1);
	}
	});
	if (tree.length > max_tree_columns) {
	max_tree_columns = tree.length;
	}
	if (tree.length > pipeline_max_tree_columns) {
	pipeline_max_tree_columns = tree.length;
	}
	change._tree = tree.slice(0); // make a copy
	last_tree_length = tree.length;
	});
	});
	change_queue._tree_columns = max_tree_columns;
	});
	pipeline._tree_columns = pipeline_max_tree_columns;
	return count;
	},
	};

	current_filter = read_cookie('zuul_filter_string', current_filter);

	$jq = $(zuul);

	$jq.on('update-start', function () {
	$container.addClass('zuul-container-loading');
	$indicator.addClass('zuul-spinner-on');
	});

	$jq.on('update-end', function () {
	$container.removeClass('zuul-container-loading');
	setTimeout(function () {
	$indicator.removeClass('zuul-spinner-on');
	}, 500);
	});

	$jq.one('update-end', function () {
	// Do this asynchronous so that if the first update adds a message, it
	// will not animate while we fade in the content. Instead it simply
	// appears with the rest of the content.
	setTimeout(function () {
	// Fade in the content
	$container.addClass('zuul-container-ready');
	});
	});

	$(function ($) {
	$msg = $('<div />').addClass('alert').hide();
	$indicator = $('<button class="btn pull-right zuul-spinner">' +
	'updating ' +
	'<span class="glyphicon glyphicon-refresh"></span>' +
	'</button>');
	$queueInfo = $('<p>Queue lengths: <span>0</span> events, ' +
	'<span>0</span> results.</p>');
	$queueEventsNum = $queueInfo.find('span').eq(0);
	$queueResultsNum = $queueEventsNum.next();

	var $control_form = zuul.format.control_form();

	$pipelines = $('<div class="row"></div>');
	var $zuulVersion = $('<p>Zuul version: <span id="zuul-version-span">' +
	'</span></p>');
	var $lastReconf = $('<p>Last reconfigured: ' +
	'<span id="last-reconfigured-span"></span></p>');

	$container = $('#zuul-container').append($msg, $indicator,
	$queueInfo, $control_form,
	$pipelines, $zuulVersion,
	$lastReconf);

	zuul.schedule();

	$(document).on({
	'show.visibility': function () {
	zuul.enabled = true;
	zuul.update();
	},
	'hide.visibility': function () {
	zuul.enabled = false;
	}
	});
	});
	}(jQuery));