HRT-0001: graph fudge factor efficacy trend on view chart

Author: chaos-dotcom

crates/web/src/charts/view.rs

@@ -14,7 +14,38 @@ use crate::utils::{
     convert_progesterone_to_ng_ml, convert_testosterone_to_ng_dl, fmt_blood_value, fmt_date_label,
     hormone_unit_label,
 };
-use hrt_shared::types::{DosageHistoryEntry, HormoneUnits, HrtData, Settings};
+use hrt_shared::types::{BloodTest, DosageHistoryEntry, HormoneUnits, HrtData, Settings};
+
+fn inferred_fudge_factor(test: &BloodTest) -> Option<f64> {
+    if let Some(value) = test.fudgeFactor {
+        if value.is_finite() && value > 0.0 {
+            return Some(value);
+        }
+    }
+
+    let measured = test.estradiolLevel?;
+    if !measured.is_finite() {
+        return None;
+    }
+    let measured_pg_ml = if test.estradiolUnit == Some(HormoneUnits::E2PmolL) {
+        measured / 3.671
+    } else {
+        measured
+    };
+    if !measured_pg_ml.is_finite() {
+        return None;
+    }
+
+    let predicted = test
+        .estrannaiseNumber
+        .filter(|value| value.is_finite() && *value > 0.0)?;
+    let ratio = measured_pg_ml / predicted;
+    if ratio.is_finite() && ratio > 0.0 {
+        Some((ratio * 1000.0).round() / 1000.0)
+    } else {
+        None
+    }
+}
 
 #[derive(Clone, Debug, PartialEq)]
 pub struct ViewChartPoint {
@@ -53,6 +84,7 @@ pub fn compute_view_chart_state(
     show_prolactin: bool,
     show_shbg: bool,
     show_fai: bool,
+    show_fudge_factor: bool,
 ) -> ViewChartState {
     let now = js_sys::Date::now() as i64;
     let start_time = now - time_range_days * 24 * 60 * 60 * 1000;
@@ -267,6 +299,25 @@ pub fn compute_view_chart_state(
                 has_data = true;
             }
         }
+        if show_fudge_factor {
+            if let Some(fudge_factor) = inferred_fudge_factor(test) {
+                let efficacy_percent = fudge_factor * 100.0;
+                let tooltip = format!(
+                    "Efficacy (FF): {}% ({}x) ({})",
+                    fmt_blood_value(efficacy_percent),
+                    fmt_blood_value(fudge_factor),
+                    date_short
+                );
+                points.push(ViewChartPoint {
+                    x,
+                    y: efficacy_percent,
+                    label: tooltip,
+                    color: RGBColor(255, 99, 132),
+                });
+                all_values.push(efficacy_percent);
+                has_data = true;
+            }
+        }
     }
 
     let mut dosage_points = Vec::new();

crates/web/src/pages/view.rs

@@ -136,6 +136,7 @@ pub fn ViewPage() -> impl IntoView {
     let show_prolactin = create_rw_signal(false);
     let show_shbg = create_rw_signal(false);
     let show_fai = create_rw_signal(false);
+    let show_fudge_factor = create_rw_signal(true);
     let view_zoom = create_rw_signal(ViewZoom::default());
     let view_tooltip = create_rw_signal(None::<ChartTooltip>);
 
@@ -158,6 +159,7 @@ pub fn ViewPage() -> impl IntoView {
                 show_prolactin.get(),
                 show_shbg.get(),
                 show_fai.get(),
+                show_fudge_factor.get(),
             )
         }
     });
@@ -1244,6 +1246,12 @@ pub fn ViewPage() -> impl IntoView {
                         <button class:active=move || show_fai.get() on:click=move |_| show_fai.set(!show_fai.get())>
                             "FAI"
                         </button>
+                        <button
+                            class:active=move || show_fudge_factor.get()
+                            on:click=move |_| show_fudge_factor.set(!show_fudge_factor.get())
+                        >
+                            "FF %"
+                        </button>
                     </div>
 
                     <div class="chart-toolbar view-dosage-group">
@@ -1287,6 +1295,9 @@ pub fn ViewPage() -> impl IntoView {
                         <Show when=move || !store.data.get().bloodTests.is_empty()>
                             <p>"* Hormone measurements are normalized to display units for charting; hover shows recorded units."</p>
                         </Show>
+                        <Show when=move || show_fudge_factor.get()>
+                            <p>"* FF is shown as efficacy percent (fudge factor x 100)."</p>
+                        </Show>
                     </div>
                 </div>
             </div>