Make task-events use the message from the API rather than hardcoded

The api has changed to send through a message for task-events. Use that
instead of rendering a message from within js dependent on the task
event type

ui/app/models/task-event.js

@@ -1,27 +1,6 @@
-import { computed } from '@ember/object';
 import Fragment from 'ember-data-model-fragments/fragment';
 import attr from 'ember-data/attr';
 import { fragmentOwner } from 'ember-data-model-fragments/attributes';
-import moment from 'moment';
-
-const displayProps = [
-  'message',
-  'validationError',
-  'setupError',
-  'driverError',
-  'downloadError',
-  'killReason',
-  'killTimeout',
-  'killError',
-  'exitCode',
-  'signal',
-  'startDelay',
-  'restartReason',
-  'failedSibling',
-  'taskSignal',
-  'taskSignalReason',
-  'driverMessage',
-];
 
 export default Fragment.extend({
   state: fragmentOwner(),
@@ -48,100 +27,4 @@ export default Fragment.extend({
   vaultError: attr('string'),
   message: attr('string'),
   failedSibling: attr('string'),
-
-  displayMessage: computed(...displayProps, function() {
-    let desc = '';
-    switch (this.get('type')) {
-      case 'Task Setup':
-        desc = this.get('message');
-        break;
-      case 'Started':
-        desc = 'Task started by client';
-        break;
-      case 'Received':
-        desc = 'Task received by client';
-        break;
-      case 'Failed Validation':
-        desc = this.get('validationError') || 'Validation of task failed';
-        break;
-      case 'Setup Failure':
-        desc = this.get('setupError') || 'Task setup failed';
-        break;
-      case 'Driver Failure':
-        desc = this.get('driverError') || 'Failed to start task';
-        break;
-      case 'Downloading Artifacts':
-        desc = 'Client is downloading artifacts';
-        break;
-      case 'Failed Artifact Download':
-        desc = this.get('downloadError') || 'Failed to download artifacts';
-        break;
-      case 'Killing':
-        desc =
-          this.get('killReason') ||
-          (this.get('killTimeout') &&
-            `Sent interrupt. Waiting ${this.get('killTimeout')} before force killing`);
-        break;
-      case 'Killed':
-        desc = this.get('killError') || 'Task successfully killed';
-        break;
-      case 'Terminated':
-        var parts = [`Exit Code: ${this.get('exitCode')}`];
-        if (this.get('signal')) {
-          parts.push(`Signal: ${this.get('signal')}`);
-        }
-        if (this.get('message')) {
-          parts.push(`Exit Message: ${this.get('message')}`);
-        }
-        desc = parts.join(', ');
-        break;
-      case 'Restarting':
-        var timerMessage = `Task restarting in ${moment
-          .duration(this.get('startDelay') / 1000000, 'ms')
-          .humanize()}`;
-        if (this.get('restartReason') && this.get('restartReason') !== 'Restart within policy') {
-          desc = `${this.get('restartReason')} - ${timerMessage}`;
-        } else {
-          desc = timerMessage;
-        }
-        break;
-      case 'Not Restarting':
-        desc = this.get('restartReason') || 'Task exceeded restart policy';
-        break;
-      case 'Sibling Task Failed':
-        desc = this.get('failedSibling')
-          ? `Task's sibling ${this.get('failedSibling')} failed`
-          : "Task's sibling failed";
-        break;
-      case 'Signaling':
-        var signal = this.get('taskSignal');
-        var reason = this.get('taskSignalReason');
-
-        if (!signal && !reason) {
-          desc = 'Task being sent a signal';
-        } else if (!signal) {
-          desc = reason;
-        } else if (!reason) {
-          desc = `Task being sent signal ${signal}`;
-        } else {
-          desc = `Task being sent signal ${signal}: ${reason}`;
-        }
-
-        break;
-      case 'Restart Signaled':
-        desc = this.get('restartReason') || 'Task signaled to restart';
-        break;
-      case 'Driver':
-        desc = this.get('driverMessage');
-        break;
-      case 'Leader Task Dead':
-        desc = 'Leader Task in Group dead';
-        break;
-      case 'Generic':
-        desc = this.get('message');
-        break;
-    }
-
-    return desc;
-  }),
 });

ui/app/templates/allocations/allocation/index.hbs

@@ -50,8 +50,8 @@
               </td>
               <td data-test-state>{{row.model.state}}</td>
               <td data-test-message>
-                {{#if row.model.events.lastObject.displayMessage}}
-                  {{row.model.events.lastObject.displayMessage}}
+                {{#if row.model.events.lastObject.message}}
+                  {{row.model.events.lastObject.message}}
                 {{else}}
                   <em>No message</em>
                 {{/if}}

ui/app/templates/allocations/allocation/task/index.hbs

@@ -83,8 +83,8 @@
               <td data-test-task-event-time>{{moment-format row.model.time "MM/DD/YY HH:mm:ss"}}</td>
               <td data-test-task-event-type>{{row.model.type}}</td>
               <td data-test-task-event-message>
-                {{#if row.model.displayMessage}}
-                  {{row.model.displayMessage}}
+                {{#if row.model.message}}
+                  {{row.model.message}}
                 {{else}}
                   <em>No message</em>
                 {{/if}}