feat: add KPI update callback with formatted patient/drug/cost display (Task 3.3)

2026-02-06 13:38:11 +00:00
parent f5486fc79e
commit 9c971c083b
3 changed files with 44 additions and 1 deletions
@@ -179,7 +179,7 @@ Drawer selection → update_drug_selection → app-state store → load_pathway_
 - **Checkpoint**: Changing date filter updates chart-data store with new pathway nodes ✓

 ### 3.3 KPI update callback
- [ ] Create `dash_app/callbacks/kpi.py`:
+- [x] Create `dash_app/callbacks/kpi.py`:
  - `update_kpis` callback: Input=`chart-data` store, Output=KPI card values (4 outputs)
  - Extracts `unique_patients`, `total_drugs`, `total_cost` from chart-data
  - Formats numbers: patients with commas, cost as "£XXX.XM", drugs as plain number