From 1817494db22c4471c1d33fac9c8ccc4d55291fac Mon Sep 17 00:00:00 2001
From: Edward Langley <el-github@elangley.org>
Date: Thu, 9 Apr 2026 14:24:39 -0700
Subject: [PATCH] chore: update app initialization and example data

Update application initialization and example data.

- `App::new` now recomputes formulas on startup to ensure formula-derived
  values are available immediately.
- Updated `examples/demo.improv` to reflect changes in formula and category
  structure.

Co-Authored-By: fiddlerwoaroof/git-smart-commit (unsloth/gemma-4-26B-A4B-it-GGUF:UD-Q5_K_XL)
---
 examples/demo.improv | 16 ++++++----------
 src/ui/app.rs        | 11 ++++++++++-
 2 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/examples/demo.improv b/examples/demo.improv
index 3f4fe00..d5f2675 100644
--- a/examples/demo.improv
+++ b/examples/demo.improv
@@ -14,26 +14,22 @@ Date_Month: column
 format: ,.0
 
 ## Formulas
-- Profit = Revenue - Cost [_Measure]
-
-## Category: _Index
-
-## Category: _Dim
+- Profit = Revenue - Cost
 
 ## Category: _Measure
-- Cost, Revenue, Profit
+- Cost, Revenue
 
 ## Category: Customer
-- Initech, |Oceanic Airlines|, |Acme Corp|, |Globex Inc|, |Umbrella Co|, |Wonka Industries|, |Stark Enterprises|, |Cyberdyne Systems|, |Soylent Ltd|
+- |Stark Enterprises|, |Soylent Ltd|, |Wonka Industries|, |Cyberdyne Systems|, |Acme Corp|, |Oceanic Airlines|, |Umbrella Co|, |Globex Inc|, Initech
 
 ## Category: Date
-- |2025-01-15|, |2025-02-28|, |2025-03-03|, |2025-03-21|, |2025-01-06|, |2025-02-18|, |2025-02-10|, |2025-01-27|, |2025-01-09|, |2025-01-31|, |2025-03-25|, |2025-01-30|, |2025-01-12|, |2025-01-19|, |2025-02-14|, |2025-03-10|, |2025-01-23|, |2025-03-18|, |2025-03-30|, |2025-02-06|, |2025-01-28|, |2025-01-17|, |2025-01-08|, |2025-03-12|, |2025-01-14|, |2025-02-15|, |2025-03-14|, |2025-02-24|, |2025-03-07|, |2025-03-05|, |2025-03-28|, |2025-01-20|, |2025-02-03|, |2025-02-20|, |2025-01-11|, |2025-01-22|, |2025-02-22|, |2025-02-25|, |2025-03-19|, |2025-02-05|
+- |2025-01-23|, |2025-03-25|, |2025-01-11|, |2025-03-12|, |2025-01-06|, |2025-01-15|, |2025-03-30|, |2025-03-10|, |2025-03-05|, |2025-01-19|, |2025-03-28|, |2025-01-22|, |2025-01-30|, |2025-01-12|, |2025-02-15|, |2025-03-07|, |2025-01-31|, |2025-01-27|, |2025-01-28|, |2025-03-03|, |2025-03-19|, |2025-02-05|, |2025-02-22|, |2025-02-25|, |2025-03-18|, |2025-02-20|, |2025-02-24|, |2025-01-14|, |2025-03-21|, |2025-01-08|, |2025-02-03|, |2025-02-10|, |2025-03-14|, |2025-02-14|, |2025-02-06|, |2025-01-09|, |2025-01-17|, |2025-01-20|, |2025-02-18|, |2025-02-28|
 
 ## Category: Product
-- Sprockets, Widgets, Gadgets
+- Gadgets, Widgets, Sprockets
 
 ## Category: Region
-- West, East, North, South
+- North, East, South, West
 
 ## Category: Date_Month
 - |2025-01|, |2025-02|, |2025-03|
diff --git a/src/ui/app.rs b/src/ui/app.rs
index 850d556..324c535 100644
--- a/src/ui/app.rs
+++ b/src/ui/app.rs
@@ -199,7 +199,16 @@ pub struct App {
 }
 
 impl App {
-    pub fn new(model: Model, file_path: Option<PathBuf>) -> Self {
+    pub fn new(mut model: Model, file_path: Option<PathBuf>) -> Self {
+        // Recompute formula cache before building the initial layout so
+        // formula-derived values are available on the first frame.
+        let none_cats: Vec<String> = model
+            .active_view()
+            .categories_on(crate::view::Axis::None)
+            .into_iter()
+            .map(String::from)
+            .collect();
+        model.recompute_formulas(&none_cats);
         let layout = {
             let view = model.active_view();
             GridLayout::with_frozen_records(&model, view, None)