bfr/BFR/Models/FileModel.cs

namespace BFR.DataModels
{
    public class FileModel
    {
        public string OldName { get; }
        public string OldFullName { get; }
        public string OldExtension { get; }
        public string OldDirectory { get; }
        public string OldPath { get; }

        public string Name { get; set; }
        public string Extension { get; set; }
        public string Directory { get; set; }

        public string FullName
        {
            get => Extension != "" ? $"{Name}.{Extension}" : Name;
            set
            {
                Name = value.LastIndexOf('.') >= 0 ? value.Substring(0, value.LastIndexOf('.')) : value;
                Extension = value.LastIndexOf('.') >= 0 ? value.Substring(value.LastIndexOf('.') + 1, value.Length - value.LastIndexOf('.') - 1) : "";
            }
        }

        public string Path
        {
            get => $"{Directory}{FullName}";
            set
            {
                FullName = value.Substring(value.LastIndexOf('\\') + 1);
                Directory = value.Substring(0, value.LastIndexOf('\\') + 1);
            }
        }

        public FileModel(string path) =>
            (OldPath, OldExtension, OldFullName, OldDirectory, OldName) =
                (Path = path, Extension, FullName, Directory, Name);
    }
}