using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Xml.Serialization;

namespace Lightpoint_demo2
{
    public class XMLConverter: ISerializer<Office>
    {
        private const string filename = "cars.xml";
        private readonly XmlSerializer serializer;
        private List<Office> Offices { get; set; }
        public XMLConverter(List<Office> offices)
        {
            serializer = new XmlSerializer(typeof(SerializableMOffice));
            Offices = offices;
        }
        public void Serialize()
        {
            using (FileStream fs = new FileStream(filename, FileMode.Create))
            {
                SerializableMOffice s_moffice = new SerializableMOffice();
                for (int i = 0; i < Offices.Count; i++)
                {
                    Offices[i].SerialazibleOffice.Brand = Offices[i].Brand;
                    Offices[i].SerialazibleOffice.SerializableCarsList = Offices[i].CarsDataBase.GetItemsList();
                    s_moffice.SerializableOfficeList.Add(Offices[i].SerialazibleOffice);
                }
                serializer.Serialize(fs, s_moffice);
            }
        }
        public void Deserialize()
        {
            using (FileStream fs = new FileStream(filename, FileMode.OpenOrCreate))
            {
                Office office;
                SerializableMOffice s_moffice;
                try
                {
                    s_moffice = (SerializableMOffice)serializer.Deserialize(fs);
                }
                catch (Exception)
                {
                    return;
                }
                for (int i = 0; i < s_moffice.SerializableOfficeList.Count; i++)
                {
                    office = new Office(s_moffice.SerializableOfficeList[i].Brand, "XML");
                    office.CarsDataBase = new LocalDB();
                    for (int j = 0; j < s_moffice.SerializableOfficeList[i].SerializableCarsList.Count; j++)
                    {
                        office.CarsDataBase.Create(s_moffice.SerializableOfficeList[i].SerializableCarsList[j]);
                    }
                    Offices.Add(office);
                }
            }
        }
    }
}