sae201_qwirkle/Qwirkle/QwirkleClassLibrary/Persistences/LeaderboardPersistence.cs

using System.Runtime.Serialization;
using QwirkleClassLibrary.Players;

namespace QwirkleClassLibrary.Persistences;

public class LeaderboardPersistence
{
    public void SaveLeaderboard(Leaderboard leaderboard)
    {
        var leaderboardSerializer = new DataContractSerializer(typeof(Leaderboard));

        using (Stream s = File.Create("LeaderBoard.json "))
        {
            leaderboardSerializer.WriteObject(s, leaderboard);
        }
    }
    
    public Leaderboard LoadLeaderboard()
    {
        var leaderboardSerializer = new DataContractSerializer(typeof(Leaderboard));

        using (Stream s = File.OpenRead("LeaderBoard.json"))
        {
            return leaderboardSerializer.ReadObject(s) as Leaderboard ?? throw new NullReferenceException();
        }
    }
}