Add preset muscle filter when replacing exercise in training session

CHANGELOG.md

@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Settings for hiding UI elements related to RPE and TUT
 - Option to prefer exercise in training session
 - Shortcut for inserting values of previous set into current set
+- Suggestion of exercises that train similar muscles when replacing exercise in training session
 
 ### Changed
 

frontend/src/component/exercise_list.rs

@@ -35,6 +35,25 @@ impl Model {
             search_bar_padding,
         }
     }
+
+    #[allow(clippy::fn_params_excessive_bools)]
+    pub fn new_with_filter(
+        view_create: bool,
+        view_edit: bool,
+        view_delete: bool,
+        search_bar_padding: bool,
+        filter: domain::ExerciseFilter,
+    ) -> Self {
+        Self {
+            search_term: String::new(),
+            filter,
+            view_filter_dialog: false,
+            view_create,
+            view_edit,
+            view_delete,
+            search_bar_padding,
+        }
+    }
 }
 
 // ------ ------

frontend/src/page/training_session.rs

@@ -1,5 +1,5 @@
 use std::cmp::Ordering;
-use std::collections::{BTreeMap, HashMap};
+use std::collections::{BTreeMap, HashMap, HashSet};
 
 use chrono::{prelude::*, Duration};
 use seed::{prelude::*, *};
@@ -1203,10 +1203,25 @@ pub fn update(
             model.dialog = Dialog::Options(element_idx, exercise_idx);
         }
         Msg::ShowReplaceExerciseDialog(element_idx, exercise_idx) => {
+            let mut muscles = HashSet::new();
+            if let FormElement::Set { exercises } = &mut model.form.elements[element_idx] {
+                let exercise_id = exercises[exercise_idx].exercise_id;
+                for m in &data_model.exercises[&exercise_id].muscles {
+                    if let Some(muscle) = domain::Muscle::from_repr(m.muscle_id) {
+                        muscles.insert(muscle);
+                    }
+                }
+            }
             model.dialog = Dialog::ReplaceExercise(
                 element_idx,
                 exercise_idx,
-                component::exercise_list::Model::new(true, false, false, false),
+                component::exercise_list::Model::new_with_filter(
+                    true,
+                    false,
+                    false,
+                    false,
+                    domain::ExerciseFilter { muscles },
+                ),
             );
         }
         Msg::ShowAddExerciseDialog(element_idx, exercise_idx) => {