1871: feat(tui): Show job failed status below the Jobs table

.cursor/rules.md

@@ -0,0 +1,5 @@
+The AI agents should never link to any issue or a pull request
+in any GitHub repository in the code reviews!
+
+The AI agents should not review AI agents' config files like CLAUDE.md or AGENTS.md!
+

.gemini/rules.md

@@ -0,0 +1,5 @@
+The AI agents should never link to any issue or a pull request
+in any GitHub repository in the code reviews!
+
+The AI agents should not review AI agents' config files like CLAUDE.md or AGENTS.md!
+

AGENTS.md

@@ -0,0 +1,5 @@
+The AI agents should never link to any issue or a pull request
+in any GitHub repository in the code reviews!
+
+The AI agents should not review AI agents' config files like CLAUDE.md or AGENTS.md!
+

CLAUDE.md

@@ -0,0 +1,5 @@
+The AI agents should never link to any issue or a pull request
+in any GitHub repository in the code reviews!
+
+The AI agents should not review AI agents' config files like CLAUDE.md or AGENTS.md!
+

ballista-cli/src/tui/app.rs

@@ -1329,6 +1329,7 @@ mod tests {
             job_id: id.to_string(),
             job_name: format!("Job {id}"),
             status: status.to_string(),
+            job_status: status.to_string(),
             start_time: 0,
             end_time: 1,
             num_stages: 1,

ballista-cli/src/tui/domain/jobs.rs

@@ -25,7 +25,8 @@ use std::collections::BTreeMap;
 pub struct Job {
     pub job_id: String,
     pub job_name: String,
-    pub status: String, // Running, Completed, Failed, Canceled
+    pub status: String,     // Running, Completed, Failed, Canceled
+    pub job_status: String, // human-readable status/failure detail, e.g. "Failed: <reason>"
     pub start_time: i64,
     pub end_time: i64,
     pub num_stages: usize,
@@ -440,6 +441,7 @@ mod tests {
             job_id: id.to_string(),
             job_name: name.to_string(),
             status: status.to_string(),
+            job_status: status.to_string(),
             start_time,
             end_time,
             num_stages,
@@ -681,6 +683,23 @@ mod tests {
         assert_eq!(job.job_id, "j2");
     }
 
+    #[test]
+    fn job_status_carries_failure_detail_independent_of_status() {
+        let job = Job {
+            job_id: "j1".to_string(),
+            job_name: "Job One".to_string(),
+            status: "Failed".to_string(),
+            job_status: "Failed: division by zero".to_string(),
+            start_time: 1,
+            end_time: 2,
+            num_stages: 1,
+            completed_stages: 0,
+            percent_complete: 0,
+        };
+        assert_eq!(job.status, "Failed");
+        assert_eq!(job.job_status, "Failed: division by zero");
+    }
+
     #[test]
     fn selected_job_filters_by_search_term_on_id() {
         let jobs = vec![

ballista-cli/src/tui/ui/main/jobs/mod.rs

@@ -49,7 +49,7 @@ use ratatui::{
     style::Style,
     text::Text,
     widgets::{
-        Block, Borders, Cell, HighlightSpacing, Paragraph, Row, Table, TableState,
+        Block, Borders, Cell, HighlightSpacing, Paragraph, Row, Table, TableState, Wrap,
     },
 };
 
@@ -200,24 +200,65 @@ pub fn render_jobs(f: &mut Frame, area: Rect, app: &App) {
     app.jobs_data.sort_jobs(&mut sorted_jobs);
 
     if !sorted_jobs.is_empty() {
+        let selected_job = app
+            .jobs_data
+            .table_state
+            .selected()
+            .and_then(|idx| sorted_jobs.get(idx).copied());
+
+        let (table_area, failed_status_area) =
+            split_area_for_table_and_failure(selected_job, rects[1]);
+
         let mut scroll_state = app.jobs_data.scrollbar_state;
         let mut table_state = app.jobs_data.table_state;
-        let table_area = vertical_scrollbar::split_area(rects[1]);
+        let [table_area, scrollbar_area] = vertical_scrollbar::split_area(table_area);
         render_jobs_table(
             f,
-            table_area[0],
+            table_area,
             &sorted_jobs,
             &mut table_state,
             &app.jobs_data.sort_column,
             &app.jobs_data.sort_order,
             app,
         );
-        render_scrollbar(f, table_area[1], &mut scroll_state);
+        render_scrollbar(f, scrollbar_area, &mut scroll_state);
+
+        if let Some((area, job)) = failed_status_area {
+            render_job_failure_reason(f, area, job, app);
+        }
     } else {
         render_no_jobs(f, rects[1], app.theme.text_info);
     }
 }
 
+fn split_area_for_table_and_failure(
+    selected_job: Option<&Job>,
+    area: Rect,
+) -> (Rect, Option<(Rect, &Job)>) {
+    match selected_job {
+        Some(job) if job.status == "Failed" => {
+            let areas = Layout::vertical([
+                Constraint::Min(5),    // Table
+                Constraint::Length(5), // Failure reason
+            ])
+            .split(area);
+            (areas[0], Some((areas[1], job)))
+        }
+        _ => (area, None),
+    }
+}
+
+fn render_job_failure_reason(f: &mut Frame, area: Rect, job: &Job, app: &App) {
+    let block = Block::default()
+        .borders(Borders::all())
+        .style(app.theme.text_error);
+    let paragraph = Paragraph::new(job.job_status.as_str())
+        .style(app.theme.text_error)
+        .wrap(Wrap { trim: true })
+        .block(block);
+    f.render_widget(paragraph, area);
+}
+
 fn render_no_jobs(f: &mut Frame, area: Rect, style: Style) {
     let block = Block::default().borders(Borders::all());
     let paragraph = Paragraph::new("No registered jobs in the scheduler!")

ballista-cli/src/tui/ui/vertical_scrollbar.rs

@@ -18,7 +18,6 @@
 use ratatui::Frame;
 use ratatui::layout::{Constraint, Layout, Rect};
 use ratatui::widgets::{Scrollbar, ScrollbarOrientation, ScrollbarState};
-use std::rc::Rc;
 
 pub(crate) fn render_scrollbar(
     frame: &mut Frame,
@@ -38,10 +37,10 @@ pub(crate) fn render_scrollbar(
 /// Splits the given area into two parts:
 /// * the first part is the table area
 /// * the second part is the scrollbar area.
-pub(crate) fn split_area(area: Rect) -> Rc<[Rect]> {
+pub(crate) fn split_area(area: Rect) -> [Rect; 2] {
     Layout::horizontal([
         Constraint::Min(1),    // Table
         Constraint::Length(1), // Scrollbar
     ])
-    .split(area)
+    .areas(area)
 }