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');
}