Scriptum/Assets/Scripts/REFACTORING/Application/Panel/Shop/SaveShopManager.cs

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

public class SaveShopManager : SaveModelSystem<Shop>
{
    public override bool SaveModelItem(Shop model)
    {
        return base.SaveModelItem(model);
    }

    public override bool SaveModelList(List<Shop> list)
    {
        BinaryFormatter formatter = new BinaryFormatter();

        Debug.Log("Saved Shops at " + Path);

        if (!Directory.Exists(Path)) Directory.CreateDirectory(Path);

        /* Main logic of  conversion data format */
        var data = ConvertObjectsListToListOfDataModels(list);

        FileStream stream = new FileStream(
            Path + GetFileName(ObjectListName),
            FileMode.Create
        );

        formatter.Serialize(stream, data);
        stream.Close();

        return true;
    }

    public override Shop LoadModelItem()
    {
        return base.LoadModelItem();
    }

    public override List<Shop> LoadModelList()
    {
        string path = Path + GetFileName(ObjectListName);

        if (File.Exists(path))
        {
            BinaryFormatter formatter = new BinaryFormatter();
            FileStream stream = new FileStream(path, FileMode.Open);

            List<ShopData> questsList = formatter.Deserialize(stream) as List<ShopData>;
            stream.Close();

            return ConvertListOfDataModelsToListOfObject(questsList);
        }
        else
        {
            Debug.Log("Save file not found in " + path);
        }

        return new List<Shop>();
    }

    // Support function

    // 1. From model to data format
    public static ShopData ConvertObjectToDataModel(Shop model)
    {
        return new ShopData(model);
    }

    public static List<ShopData> ConvertObjectsListToListOfDataModels(List<Shop> modelsList)
    {
        List<ShopData> convertedList = new List<ShopData>();

        foreach (Shop model in modelsList)
        {
            convertedList.Add(ConvertObjectToDataModel(model));
        }

        return convertedList;
    }

    // 2. From data to model format
    public static Shop ConvertDataModelToObject(ShopData dataModel)
    {
        return (Shop)dataModel.MapDataToObject();
    }

    public static List<Shop> ConvertListOfDataModelsToListOfObject(List<ShopData> dataModelsList)
    {
        List<Shop> convertedList = new List<Shop>();

        foreach (ShopData dataModel in dataModelsList)
        {
            convertedList.Add(ConvertDataModelToObject(dataModel));
        }

        return convertedList;
    }
}