using System;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using UnityEngine;

namespace MyProject
{
    public class StorageHandler : MonoBehaviour
    {
        // <summary>
        // Serialize an object to the devices File System.
        // </summary>
        // <param name="objectToSave">The Object that will be Serialized.</param>
        // <param name="fileName">Name of the file to be Serialized.</param>
        public void SaveData(object objectToSave, string fileName)
        {
            // Add the File Path together with the files name and extension.
            // We will use .bin to represent that this is a Binary file.
            string FullFilePath = Application.persistentDataPath + "/" + fileName + ".bin";
            // We must create a new Formattwr to Serialize with.
            BinaryFormatter Formatter = new BinaryFormatter();
            // Create a streaming path to our new file location.
            FileStream fileStream = new FileStream(FullFilePath, FileMode.Create);
            // Serialize the objedt to the File Stream
            Formatter.Serialize(fileStream, objectToSave);
            // FInally Close the FileStream and let the rest wrap itself up.
            fileStream.Close();
        }
        // <summary>
        // Deserialize an object from the FileSystem.
        // </summary>
        // <param name="fileName">Name of the file to deserialize.</param>
        // <returns>Deserialized Object</returns>
        public object LoadData(string fileName)
        {
            string FullFilePath = Application.persistentDataPath + "/" + fileName + ".bin";
            // Check if our file exists, if it does not, just return a null object.
            if (File.Exists(FullFilePath))
            {
                BinaryFormatter Formatter = new BinaryFormatter();
                FileStream fileStream = new FileStream(FullFilePath, FileMode.Open);
                object obj = Formatter.Deserialize(fileStream);
                fileStream.Close();
                // Return the uncast untyped object.
                return obj;
            }
            else
            {
                return null;
            }
        }
    }
}