init

src/TrainingPlanner.Application/ExerciseSearch.cs

@@ -0,0 +1,20 @@
+using TrainingPlanner.Domain;
+
+namespace TrainingPlanner.Application;
+
+public static class ExerciseSearch
+{
+    public static List<LibraryExercise> Find(IEnumerable<LibraryExercise> exercises, string query)
+    {
+        var search = Normalize(query);
+        var words = search.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+        return exercises
+            .Where(exercise => words.All(word => Normalize(exercise.Name).Contains(word)))
+            .OrderByDescending(exercise => Normalize(exercise.Name) == search)
+            .ThenByDescending(exercise => Normalize(exercise.Name).StartsWith(search))
+            .ThenBy(exercise => exercise.Name, StringComparer.CurrentCultureIgnoreCase)
+            .ToList();
+    }
+
+    private static string Normalize(string value) => value.Trim().ToLowerInvariant().Replace('ё', 'е');
+}