public class DatabaseContext : DbContext
    {
        public DbSet<Objectivo> Objectivos { get; set; }
        public DbSet<Tarefa> Tarefas { get; set; }
        public DbSet<Nota> Notas { get; set; }

        private readonly string _databasePath;

        public DatabaseContext(string databasePath)
        {
            _databasePath = databasePath;
            Database.EnsureCreated();
        }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlite("Filename=" + _databasePath);
        }
    }