From dd612f653509c422f057de5c80308f7c8db78bd5 Mon Sep 17 00:00:00 2001
From: Alexander Bocken <alexander@bocken.org>
Date: Tue, 21 Apr 2026 07:54:29 +0200
Subject: [PATCH] fix(fitness): persist activityType when picking GPS activity
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The active-workout activity picker updated local state + workout.name
but never synced workout.activityType, so every hiking/walking/cycling
workout was saved with an inner exercise of 'running'. That silently
applied the wrong kcal model — running Minetti for hiking/walking
(~43% overestimate) and running instead of the cycling physics model
(large overestimate for cycling).

Adds an activityType setter on the workout store and invokes it from
selectActivity() so the saved session's exercise matches the picked
activity.
---
 package.json                                                    | 2 +-
 src/lib/js/workout.svelte.ts                                    | 1 +
 .../[active=fitnessActive]/+page.svelte                         | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index c7a6c715..1ae6dbfe 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.37.5",
+	"version": "1.37.6",
 	"private": true,
 	"type": "module",
 	"scripts": {
diff --git a/src/lib/js/workout.svelte.ts b/src/lib/js/workout.svelte.ts
index eb4366d9..a251b0ba 100644
--- a/src/lib/js/workout.svelte.ts
+++ b/src/lib/js/workout.svelte.ts
@@ -714,6 +714,7 @@ export function createWorkout() {
 		get paused() { return paused; },
 		get mode() { return mode; },
 		get activityType() { return activityType; },
+		set activityType(v: GpsActivityType | null) { activityType = v; _persist(); },
 		get name() { return name; },
 		set name(v: string) { name = v; _persist(); },
 		get templateId() { return templateId; },
diff --git a/src/routes/fitness/[workout=fitnessWorkout]/[active=fitnessActive]/+page.svelte b/src/routes/fitness/[workout=fitnessWorkout]/[active=fitnessActive]/+page.svelte
index 0b0132c7..18ea7145 100644
--- a/src/routes/fitness/[workout=fitnessWorkout]/[active=fitnessActive]/+page.svelte
+++ b/src/routes/fitness/[workout=fitnessWorkout]/[active=fitnessActive]/+page.svelte
@@ -252,6 +252,7 @@
 	function selectActivity(/** @type {string} */ id) {
 		selectedActivity = /** @type {import('$lib/js/workout.svelte').GpsActivityType} */ (id);
 		const labels = { running: 'Running', walking: 'Walking', cycling: 'Cycling', hiking: 'Hiking' };
+		workout.activityType = selectedActivity;
 		workout.name = labels[selectedActivity] ?? 'GPS Workout';
 		showActivityPicker = false;
 	}