implemented default job details

app_dart/lib/src/request_handlers/get_presubmit_jobs.dart

@@ -97,7 +97,7 @@ final class GetPresubmitJobs extends PublicApiRequestHandler {
           creationTime: job.creationTime,
           startTime: job.startTime,
           endTime: job.endTime,
-          status: job.status.value,
+          status: job.status,
           summary: job.summary,
           buildNumber: job.buildNumber,
         ),

app_dart/test/request_handlers/get_presubmit_checks_test.dart

@@ -98,7 +98,7 @@ void main() {
       expect(jobs.length, 1);
       expect(jobs[0].attemptNumber, 1);
       expect(jobs[0].jobName, 'linux');
-      expect(jobs[0].status, 'Succeeded');
+      expect(jobs[0].status, TaskStatus.succeeded);
       expect(jobs[0].buildNumber, 456);
     });
 

dashboard/lib/state/presubmit.dart

@@ -322,14 +322,14 @@ class PresubmitState extends ChangeNotifier {
       this.repo = repo;
       changed = true;
     }
-    if (pr != this.pr) {
+    if (this.pr != pr) {
       this.pr = pr;
       changed = true;
       _availableSummaries = [];
       _lastFetchedPr = null;
       clearFilters();
     }
-    if (sha != this.sha) {
+    if (this.sha != sha) {
       this.sha = sha;
       changed = true;
       _guardResponse = null;

dashboard/lib/views/presubmit_view.dart

@@ -24,7 +24,7 @@ import '../widgets/task_box.dart';
 
 /// A detailed monitoring view for a specific Pull Request (PR) or commit SHA.
 ///
-/// This view displays CI job statuses and execution logs.
+/// This view displays CI job statuses and execution details.
 final class PreSubmitView extends StatefulWidget {
   const PreSubmitView({
     super.key,
@@ -284,9 +284,11 @@ class _PreSubmitViewState extends State<PreSubmitView> {
                               child:
                                   (selectedJob == null || guardResponse == null)
                                   ? const Center(
-                                      child: Text('Select a job to view logs'),
+                                      child: Text(
+                                        'Select a job to view execution details.',
+                                      ),
                                     )
-                                  : const _LogViewerPane(),
+                                  : const _JobDetailsViewerPane(),
                             ),
                           ],
                         ),
@@ -300,14 +302,14 @@ class _PreSubmitViewState extends State<PreSubmitView> {
   }
 }
 
-class _LogViewerPane extends StatefulWidget {
-  const _LogViewerPane();
+class _JobDetailsViewerPane extends StatefulWidget {
+  const _JobDetailsViewerPane();
 
   @override
-  State<_LogViewerPane> createState() => _LogViewerPaneState();
+  State<_JobDetailsViewerPane> createState() => _JobDetailsViewerPaneState();
 }
 
-class _LogViewerPaneState extends State<_LogViewerPane> {
+class _JobDetailsViewerPaneState extends State<_JobDetailsViewerPane> {
   int _selectedAttemptIndex = 0;
 
   @override
@@ -434,7 +436,7 @@ class _LogViewerPaneState extends State<_LogViewerPane> {
               child: Row(
                 children: [
                   Text(
-                    'Execution Log',
+                    'Execution Details',
                     style: TextStyle(fontWeight: FontWeight.w600),
                   ),
                   Spacer(),
@@ -457,7 +459,7 @@ class _LogViewerPaneState extends State<_LogViewerPane> {
                 width: double.infinity,
                 child: SingleChildScrollView(
                   child: Text(
-                    selectedJob.summary ?? 'No log summary available',
+                    selectedJob.summary ?? _getDefaultJobDetails(selectedJob),
                     style: const TextStyle(
                       fontFamily: 'monospace',
                       fontSize: 13,
@@ -512,6 +514,24 @@ class _LogViewerPaneState extends State<_LogViewerPane> {
       },
     );
   }
+
+  String _getDefaultJobDetails(PresubmitJobResponse job) {
+    return switch (job.status) {
+      .succeeded =>
+        '${job.jobName} executed successfully.\nClick "View more details on LUCI UI" button bellow for more details.',
+      .failed =>
+        '${job.jobName} failed.\nClick "View more details on LUCI UI" button bellow for more details.',
+      .infraFailure =>
+        'Infrastructure failed during execution of ${job.jobName}.\nClick "View more details on LUCI UI" button bellow for more details.',
+      .skipped => '${job.jobName} is skipped.',
+      .neutral => '${job.jobName} is disabled.',
+      .cancelled => '${job.jobName} is cancelled.',
+      .inProgress =>
+        '${job.jobName} is in progress.\nClick "View more details on LUCI UI" button bellow to see execution details.',
+      .waitingForBackfill =>
+        '${job.jobName} is not yet scheduled for execution.\n"View more details on LUCI UI" button will become enabled once the job is scheduled.',
+    };
+  }
 }
 
 class _JobsSidebar extends StatefulWidget {

dashboard/test/integration/get_presubmit_checks_test.dart

@@ -59,7 +59,7 @@ void main() {
 
       final result = response.data!.first;
       expect(result.jobName, 'linux android_2');
-      expect(result.status, 'Succeeded');
+      expect(result.status, TaskStatus.succeeded);
       expect(result.attemptNumber, 1);
       expect(result.buildNumber, 1337);
       expect(result.summary, 'Build succeeded');
@@ -107,10 +107,10 @@ void main() {
       // `orderMap: const { PresubmitJob.fieldAttemptNumber: kQueryOrderDescending }`
 
       expect(response.data![0].attemptNumber, 2);
-      expect(response.data![0].status, 'Succeeded');
+      expect(response.data![0].status, TaskStatus.succeeded);
 
       expect(response.data![1].attemptNumber, 1);
-      expect(response.data![1].status, 'Failed');
+      expect(response.data![1].status, TaskStatus.failed);
     });
   });
 }

dashboard/test/logic/presubmit_guard_test.dart

@@ -43,7 +43,7 @@ void main() {
         'attempt_number': 1,
         'job_name': 'Linux Device Doctor',
         'creation_time': 1620134239000,
-        'status': 'Succeeded',
+        'status': '${TaskStatus.succeeded}',
         'summary': 'Check passed',
       };
 
@@ -52,7 +52,7 @@ void main() {
       expect(response.attemptNumber, 1);
       expect(response.jobName, 'Linux Device Doctor');
       expect(response.creationTime, 1620134239000);
-      expect(response.status, 'Succeeded');
+      expect(response.status, TaskStatus.succeeded);
       expect(response.summary, 'Check passed');
     });
   });

dashboard/test/state/presubmit_test.dart

@@ -4,6 +4,7 @@
 
 import 'package:cocoon_common/guard_status.dart';
 import 'package:cocoon_common/rpc_model.dart';
+import 'package:cocoon_common/task_status.dart';
 import 'package:flutter_dashboard/service/cocoon.dart';
 import 'package:flutter_dashboard/state/presubmit.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -159,7 +160,7 @@ void main() {
           attemptNumber: 1,
           jobName: 'check1',
           creationTime: 0,
-          status: 'Succeeded',
+          status: TaskStatus.succeeded,
         ),
       ];
       const guardResponse = PresubmitGuardResponse(
@@ -395,6 +396,8 @@ void main() {
 
       presubmitState.update(pr: '123', sha: null);
 
+      await Future<void>.delayed(Duration.zero);
+
       verify(
         mockCocoonService.fetchPresubmitGuardSummaries(
           pr: '123',

dashboard/test/views/presubmit_view_test.dart

@@ -232,14 +232,14 @@ void main() {
           attemptNumber: 1,
           jobName: 'Mac mac_host_engine 1',
           creationTime: 0,
-          status: 'Succeeded',
+          status: TaskStatus.succeeded,
           summary: 'All tests passed (452/452)',
         ),
         PresubmitJobResponse(
           attemptNumber: 2,
           jobName: 'Mac mac_host_engine 1',
           creationTime: 0,
-          status: 'Failed',
+          status: TaskStatus.failed,
           summary: 'Test failed: Unit Tests',
         ),
       ]),
@@ -415,7 +415,7 @@ void main() {
           attemptNumber: 1,
           jobName: 'Mac mac_host_engine',
           creationTime: 0,
-          status: 'Succeeded',
+          status: TaskStatus.succeeded,
           summary: 'Live log content',
         ),
       ]),

packages/cocoon_common/lib/src/rpc_model/presubmit_job_response.dart

@@ -5,6 +5,7 @@
 import 'package:json_annotation/json_annotation.dart';
 import 'package:meta/meta.dart';
 
+import '../../task_status.dart';
 import 'base.dart';
 
 part 'presubmit_job_response.g.dart';
@@ -54,7 +55,7 @@ final class PresubmitJobResponse extends Model {
   final int? endTime;
 
   /// The status of the job.
-  final String status;
+  final TaskStatus status;
 
   /// A brief summary of the job result or link to logs.
   final String? summary;

packages/cocoon_common/test/presubmit_check_response_test.dart

@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 import 'package:cocoon_common/rpc_model.dart';
+import 'package:cocoon_common/task_status.dart';
 import 'package:test/test.dart';
 
 void main() {
@@ -12,7 +13,7 @@ void main() {
         'attempt_number': 1,
         'job_name': 'linux',
         'creation_time': 1000,
-        'status': 'succeeded',
+        'status': '${TaskStatus.succeeded}',
         'build_number': 456,
       };
 
@@ -28,7 +29,7 @@ void main() {
         'attempt_number': 1,
         'job_name': 'linux',
         'creation_time': 1000,
-        'status': 'succeeded',
+        'status': '${TaskStatus.succeeded}',
       };
 
       final response = PresubmitJobResponse.fromJson(json);