From 778adb7ce05ab8471c0e00deda6a666f7b22c582 Mon Sep 17 00:00:00 2001
From: jgrusewski <jgrusewski@localhost>
Date: Tue, 3 Mar 2026 16:06:00 +0100
Subject: [PATCH] feat(fxt): render epoch financial metrics in watch TUI list +
 detail views

Add Sharpe/Win% columns to training list table, financial summary lines
(Sharpe, Sortino, Win Rate, Max DD, PF, Return, Avg, Trades) to the
detail overview, action distribution (BUY/SELL/HOLD %) to current metrics,
and four new sparklines (Sharpe, Win Rate, Max DD, Total Return) to the
Metrics sub-tab.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 bin/fxt/src/commands/watch/render.rs | 45 +++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 7 deletions(-)

diff --git a/bin/fxt/src/commands/watch/render.rs b/bin/fxt/src/commands/watch/render.rs
index a96b7347c..6653716b6 100644
--- a/bin/fxt/src/commands/watch/render.rs
+++ b/bin/fxt/src/commands/watch/render.rs
@@ -149,6 +149,8 @@ fn render_training_list(frame: &mut Frame, area: Rect, tab: &TrainingTabState) {
         Cell::from("LR"),
         Cell::from("Batch/s"),
         Cell::from("Grad"),
+        Cell::from("Sharpe"),
+        Cell::from("Win%"),
     ])
     .style(
         Style::default()
@@ -171,6 +173,8 @@ fn render_training_list(frame: &mut Frame, area: Rect, tab: &TrainingTabState) {
                 Cell::from(format!("{:.2e}", s.learning_rate)),
                 Cell::from(format!("{:.1}", s.batches_per_second)),
                 Cell::from(format!("{:.3}", s.gradient_norm)),
+                Cell::from(if s.epoch_sharpe != 0.0 { format!("{:.2}", s.epoch_sharpe) } else { "-".to_owned() }),
+                Cell::from(if s.epoch_win_rate > 0.0 { format!("{:.0}%", s.epoch_win_rate * 100.0) } else { "-".to_owned() }),
             ])
         })
         .collect();
@@ -188,6 +192,8 @@ fn render_training_list(frame: &mut Frame, area: Rect, tab: &TrainingTabState) {
             Constraint::Length(10),
             Constraint::Length(8),
             Constraint::Length(8),
+            Constraint::Length(8),
+            Constraint::Length(8),
         ],
     )
     .header(header)
@@ -351,8 +357,8 @@ fn render_detail_overview(
     let chunks = Layout::default()
         .direction(Direction::Vertical)
         .constraints([
-            Constraint::Length(8), // key stats
-            Constraint::Min(0),   // loss sparkline
+            Constraint::Length(12), // key stats (incl. financial metrics)
+            Constraint::Min(0),    // loss sparkline
         ])
         .split(area);
 
@@ -377,6 +383,17 @@ fn render_detail_overview(
             "  NaN: {}    Grad Explosions: {}    Feature Errors: {}",
             session.nan_detected, session.gradient_explosions, session.feature_errors,
         )),
+        Line::from(""),
+        Line::from(format!(
+            "  Sharpe: {:.2}    Sortino: {:.2}    Win Rate: {:.1}%    Max DD: {:.1}%",
+            session.epoch_sharpe, session.epoch_sortino,
+            session.epoch_win_rate * 100.0, session.epoch_max_drawdown * 100.0,
+        )),
+        Line::from(format!(
+            "  PF: {:.2}    Return: {:+.2}%    Avg: {:+.4}    Trades: {}",
+            session.epoch_profit_factor, session.epoch_total_return * 100.0,
+            session.epoch_avg_return, session.epoch_total_trades,
+        )),
     ])
     .block(
         Block::default()
@@ -454,7 +471,7 @@ fn render_detail_metrics(
     let chunks = Layout::default()
         .direction(Direction::Vertical)
         .constraints([
-            Constraint::Length(5), // current values
+            Constraint::Length(7), // current values (incl. action distribution)
             Constraint::Min(0),   // sparklines
         ])
         .split(area);
@@ -468,6 +485,12 @@ fn render_detail_metrics(
             "  Precision: {:.4}    Recall: {:.4}",
             session.eval_precision, session.eval_recall,
         )),
+        Line::from(format!(
+            "  Action: BUY {:.0}%  SELL {:.0}%  HOLD {:.0}%",
+            session.action_buy_pct * 100.0,
+            session.action_sell_pct * 100.0,
+            session.action_hold_pct * 100.0,
+        )),
     ])
     .block(
         Block::default()
@@ -479,10 +502,14 @@ fn render_detail_metrics(
     let spark_area = Layout::default()
         .direction(Direction::Vertical)
         .constraints([
-            Constraint::Percentage(25),
-            Constraint::Percentage(25),
-            Constraint::Percentage(25),
-            Constraint::Percentage(25),
+            Constraint::Ratio(1, 8),
+            Constraint::Ratio(1, 8),
+            Constraint::Ratio(1, 8),
+            Constraint::Ratio(1, 8),
+            Constraint::Ratio(1, 8),
+            Constraint::Ratio(1, 8),
+            Constraint::Ratio(1, 8),
+            Constraint::Ratio(1, 8),
         ])
         .split(chunks[1]);
 
@@ -490,6 +517,10 @@ fn render_detail_metrics(
     render_sparkline_row(frame, spark_area[1], "Precision", &history.precision, 1.0, Color::Cyan);
     render_sparkline_row(frame, spark_area[2], "Recall", &history.recall, 1.0, Color::Magenta);
     render_sparkline_row(frame, spark_area[3], "F1", &history.f1, 1.0, Color::Yellow);
+    render_sparkline_row(frame, spark_area[4], "Sharpe", &history.sharpe, 20.0, Color::Cyan);
+    render_sparkline_row(frame, spark_area[5], "Win Rate", &history.win_rate, 1.0, Color::Green);
+    render_sparkline_row(frame, spark_area[6], "Max DD", &history.max_drawdown, 1.0, Color::Red);
+    render_sparkline_row(frame, spark_area[7], "Total Return", &history.total_return, 1.0, Color::Magenta);
 }
 
 fn render_detail_hyperopt(