using RhythmBullet.Zer01HD.Utilities.Persistence;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;

namespace RhythmBullet.Zer01HD.Utilities
{
    public class PreferencesManager
    {
        private readonly Dictionary<Type, IPreferences> preferenceList;
        public string SavePath;
        XmlSerializer xmlSerializer;

        public PreferencesManager(string savePath, params IPreferences[] preferences)
        {
            this.SavePath = savePath;
            preferenceList = new Dictionary<Type, IPreferences>();
            foreach (IPreferences prefs in preferences)
            {
                preferenceList.Add(prefs.GetType(), prefs);
            }
        }

        public T GetPreferences<T>() where T : IPreferences
        {
            return (T) preferenceList[typeof(T)];
        }

        public void Load()
        {
            foreach (KeyValuePair<Type, IPreferences> prefs in preferenceList)
            {
            Stream stream = new FileStream(SavePath + nameof(prefs.Key), FileMode.Open);
            preferenceList[prefs.Key] = (IPreferences) xmlSerializer.Deserialize(stream);
            stream.Close();
            }
        }

        public void Save()
        {
            foreach (KeyValuePair<Type, IPreferences> prefs in preferenceList)
            {
                Stream stream = new FileStream(SavePath + nameof(prefs.Key), FileMode.Create);
                xmlSerializer.Serialize(stream, prefs.Value);
                stream.Close();
            }
        }
    }
}