создание файлового хранилища сущностей

This commit is contained in:
bekodeg 2024-02-27 14:27:20 +04:00
parent b3ea0977f0
commit 06ad6a92f1
7 changed files with 513 additions and 0 deletions

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using SushiBarFileImplement.Models;
using System.Linq;
using System.Xml.Linq;
namespace SushiBarFileImplement
{
internal class DataFileSingleton
{
private static DataFileSingleton? instance;
private readonly string ComponentFileName = "Component.xml";
private readonly string OrderFileName = "Order.xml";
private readonly string SushiFileName = "Sushi.xml";
public List<Component> Components { get; private set; }
public List<Order> Orders { get; private set; }
public List<Sushi> Sushis { get; private set; }
public static DataFileSingleton GetInstance()
{
if (instance == null)
{
instance = new DataFileSingleton();
}
return instance;
}
public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
public void SaveSushis() => SaveData(Sushis, SushiFileName, "Sushis", x => x.GetXElement);
public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
private DataFileSingleton()
{
Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
Sushis = LoadData(SushiFileName, "Product", x => Sushi.Create(x)!)!;
Orders = new List<Order>();
}
private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
{
if (File.Exists(filename))
{
return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
}
return new List<T>();
}
private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
{
if (data != null)
{
new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
}
}
}
}

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using SushiBarContracts.BindingModels;
using SushiBarContracts.SearchModels;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using SushiBarFileImplement.Models;
namespace SushiBarFileImplement.Implements
{
public class ComponentStorage : IComponentStorage
{
private readonly DataFileSingleton source;
public ComponentStorage()
{
source = DataFileSingleton.GetInstance();
}
public List<ComponentViewModel> GetFullList()
{
return source.Components.Select(x => x.GetViewModel).ToList();
}
public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
{
if (string.IsNullOrEmpty(model.ComponentName))
{
return new();
}
return source.Components.Where(x =>
x.ComponentName.Contains(model.ComponentName)).Select(x =>
x.GetViewModel).ToList();
}
public ComponentViewModel? GetElement(ComponentSearchModel model)
{
if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
{
return null;
}
return source.Components.FirstOrDefault(x =>
(!string.IsNullOrEmpty(model.ComponentName) &&
x.ComponentName == model.ComponentName) ||
(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
}
public ComponentViewModel? Insert(ComponentBindingModel model)
{
model.Id = source.Components.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
var newComponent = Component.Create(model);
if (newComponent == null)
{
return null;
}
source.Components.Add(newComponent);
source.SaveComponents();
return newComponent.GetViewModel;
}
public ComponentViewModel? Update(ComponentBindingModel model)
{
var component = source.Components.FirstOrDefault(x => x.Id == model.Id);
if (component == null)
{
return null;
}
component.Update(model);
source.SaveComponents();
return component.GetViewModel;
}
public ComponentViewModel? Delete(ComponentBindingModel model)
{
var element = source.Components.FirstOrDefault(x => x.Id == model.Id);
if (element != null)
{
source.Components.Remove(element);
source.SaveComponents();
return element.GetViewModel;
}
return null;
}
}
}

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using SushiBarContracts.BindingModels;
using SushiBarContracts.SearchModels;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using SushiBarFileImplement.Models;
namespace SushiBarFileImplement.Implements
{
public class OrderStorage : IOrderStorage
{
private readonly DataFileSingleton source;
public OrderStorage()
{
source = DataFileSingleton.GetInstance();
}
public List<OrderViewModel> GetFullList()
{
return source.Orders.Select(x => x.GetViewModel).ToList();
}
public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
{
if (!model.Id.HasValue)
{
return new();
}
return source.Orders.Where(x =>
x.Id == model.Id).Select(x =>
x.GetViewModel).ToList();
}
public OrderViewModel? GetElement(OrderSearchModel model)
{
if (!model.Id.HasValue)
{
return null;
}
return source.Orders.FirstOrDefault(x =>
(x.Id == model.Id))?.GetViewModel;
}
public OrderViewModel? Insert(OrderBindingModel model)
{
model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
var newOrder = Order.Create(model);
if (newOrder == null)
{
return null;
}
source.Orders.Add(newOrder);
source.SaveOrders();
return newOrder.GetViewModel;
}
public OrderViewModel? Update(OrderBindingModel model)
{
var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
if (order == null)
{
return null;
}
order.Update(model);
source.SaveOrders();
return order.GetViewModel;
}
public OrderViewModel? Delete(OrderBindingModel model)
{
var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
if (element != null)
{
source.Orders.Remove(element);
source.SaveOrders();
return element.GetViewModel;
}
return null;
}
}
}

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using SushiBarContracts.BindingModels;
using SushiBarContracts.SearchModels;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using SushiBarFileImplement.Models;
namespace SushiBarFileImplement.Implements
{
public class SushiStorage : ISushiStorage
{
private readonly DataFileSingleton source;
public SushiStorage()
{
source = DataFileSingleton.GetInstance();
}
public List<SushiViewModel> GetFullList()
{
return source.Sushis.Select(x => x.GetViewModel).ToList();
}
public List<SushiViewModel> GetFilteredList(SushiSearchModel model)
{
if (string.IsNullOrEmpty(model.SushiName))
{
return new();
}
return source.Sushis.Where(x =>
x.SushiName.Contains(model.SushiName)).Select(x =>
x.GetViewModel).ToList();
}
public SushiViewModel? GetElement(SushiSearchModel model)
{
if (string.IsNullOrEmpty(model.SushiName) && !model.Id.HasValue)
{
return null;
}
return source.Sushis.FirstOrDefault(x =>
(!string.IsNullOrEmpty(model.SushiName) &&
x.SushiName == model.SushiName) ||
(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
}
public SushiViewModel? Insert(SushiBindingModel model)
{
model.Id = source.Sushis.Count > 0 ? source.Sushis.Max(x => x.Id) + 1 : 1;
var newSushi = Sushi.Create(model);
if (newSushi == null)
{
return null;
}
source.Sushis.Add(newSushi);
source.SaveSushis();
return newSushi.GetViewModel;
}
public SushiViewModel? Update(SushiBindingModel model)
{
var sushi = source.Sushis.FirstOrDefault(x => x.Id == model.Id);
if (sushi == null)
{
return null;
}
sushi.Update(model);
source.SaveSushis();
return sushi.GetViewModel;
}
public SushiViewModel? Delete(SushiBindingModel model)
{
var element = source.Sushis.FirstOrDefault(x => x.Id == model.Id);
if (element != null)
{
source.Sushis.Remove(element);
source.SaveSushis();
return element.GetViewModel;
}
return null;
}
}
}

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using SushiBarContracts.BindingModels;
using SushiBarContracts.ViewModels;
using SushiBarDataModels.Models;
using System.Xml.Linq;
namespace SushiBarFileImplement.Models
{
public class Component : IComponentModel
{
public int Id { get; private set; }
public string ComponentName { get; private set; } = string.Empty;
public double Cost { get; set; }
public static Component? Create(ComponentBindingModel model)
{
if (model == null)
{
return null;
}
return new Component()
{
Id = model.Id,
ComponentName = model.ComponentName,
Cost = model.Cost
};
}
public static Component? Create(XElement element)
{
if (element == null)
{
return null;
}
return new Component()
{
Id = Convert.ToInt32(element.Attribute("Id")!.Value),
ComponentName = element.Element("ComponentName")!.Value,
Cost = Convert.ToDouble(element.Element("Cost")!.Value)
};
}
public void Update(ComponentBindingModel model)
{
if (model == null)
{
return;
}
ComponentName = model.ComponentName;
Cost = model.Cost;
}
public ComponentViewModel GetViewModel => new()
{
Id = Id,
ComponentName = ComponentName,
Cost = Cost
};
public XElement GetXElement => new("Component",
new XAttribute("Id", Id),
new XElement("ComponentName", ComponentName),
new XElement("Cost", Cost.ToString()));
}
}

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using SushiBarContracts.BindingModels;
using SushiBarContracts.ViewModels;
using SushiBarDataModels.Enums;
using SushiBarDataModels.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;
namespace SushiBarFileImplement.Models
{
public class Order : IOrderModel
{
public int Id { get; private set; }
public int SushiId { get; private set; }
public int Count { get; private set; }
public double Sum { get; private set; }
public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
public DateTime DateCreate { get; private set; }
public DateTime? DateImplement { get; private set; }
public static Order? Create(OrderBindingModel model)
{
if (model == null)
{
return null;
}
return new Order()
{
Id = model.Id,
SushiId = model.SushiId,
Count = model.Count,
Sum = model.Sum,
Status = model.Status,
DateCreate = model.DateCreate,
DateImplement = model.DateImplement
};
}
public static Order? Create(XElement element)
{
if (element == null)
{
return null;
}
return new Order()
{
Id = Convert.ToInt32(element.Attribute("id")!.Value),
SushiId = Convert.ToInt32(element.Element("SushiId")!.Value),
Count = Convert.ToInt32(element.Element("Count")!.Value),
Sum = Convert.ToDouble(element.Element("Sum")!.Value),
Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value.ToString()),
DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null :
Convert.ToDateTime(element.Element("DateImplement")!.Value)
};
}
public void Update(OrderBindingModel model)
{
if (model == null)
{
return;
}
Status = model.Status;
DateImplement = model.DateImplement;
}
public OrderViewModel GetViewModel => new()
{
Id = Id,
SushiId = SushiId,
Count = Count,
Sum = Sum,
Status = Status,
DateCreate = DateCreate,
DateImplement = DateImplement,
};
public XElement GetXElement => new("Order",
new XAttribute("Id", Id),
new XElement("SushiId", SushiId),
new XElement("Count", Count),
new XElement("Sum", Sum.ToString()),
new XElement("Status", Status.ToString()),
new XElement("DateCreate", DateCreate.ToString()),
new XElement("DateImplement", DateImplement.ToString())
);
}
}

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using SushiBarContracts.BindingModels;
using SushiBarContracts.ViewModels;
using SushiBarDataModels.Models;
using System.Xml.Linq;
namespace SushiBarFileImplement.Models
{
public class Sushi : ISushiModel
{
public int Id { get; private set; }
public string SushiName { get; private set; } = string.Empty;
public double Price { get; private set; }
public Dictionary<int, int> Components { get; private set; } = new();
private Dictionary<int, (IComponentModel, int)>? _sushiComponents = null;
public Dictionary<int, (IComponentModel, int)> SushiComponents
{
get
{
if (_sushiComponents == null)
{
var source = DataFileSingleton.GetInstance();
_sushiComponents = Components.ToDictionary(x => x.Key, y =>
((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
y.Value));
}
return _sushiComponents;
}
}
public static Sushi? Create(SushiBindingModel model)
{
if (model == null)
{
return null;
}
return new Sushi()
{
Id = model.Id,
SushiName = model.SushiName,
Price = model.Price,
Components = model.SushiComponents.ToDictionary(x => x.Key, x
=> x.Value.Item2)
};
}
public static Sushi? Create(XElement element)
{
if (element == null)
{
return null;
}
return new Sushi()
{
Id = Convert.ToInt32(element.Attribute("Id")!.Value),
SushiName = element.Element("SushiName")!.Value,
Price = Convert.ToDouble(element.Element("Price")!.Value),
Components = element.Element("SushiComponents")!.Elements("SushiComponent").ToDictionary(x =>
Convert.ToInt32(x.Element("Key")?.Value), x =>
Convert.ToInt32(x.Element("Value")?.Value))
};
}
public void Update(SushiBindingModel model)
{
if (model == null)
{
return;
}
SushiName = model.SushiName;
Price = model.Price;
Components = model.SushiComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
_sushiComponents = null;
}
public SushiViewModel GetViewModel => new()
{
Id = Id,
SushiName = SushiName,
Price = Price,
SushiComponents = SushiComponents
};
public XElement GetXElement => new("Sushi",
new XAttribute("Id", Id),
new XElement("SushiName", SushiName),
new XElement("Price", Price.ToString()),
new XElement("SushiComponents", Components.Select(x =>
new XElement("SushiComponent",
new XElement("Key", x.Key),
new XElement("Value", x.Value))).ToArray()));
}
}