224 lines
7.5 KiB
C#
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

using Microsoft.AspNetCore.Http;
using ProjectAirFighter.CollectionGenericObject;
using ProjectAirFighter.Drawning;
using ProjectAirFighter.Exceptions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ProjectAirFighter.CollectionGenericObjects;
/// <summary>
/// Класс-хранилище коллекций
/// </summary>
/// <typeparam name="T"></typeparam>
public class StorageCollection<T>
where T : DrawningWarPlane
{
/// <summary>
/// Словарь (хранилище) с коллекциями
/// </summary>
private Dictionary<CollectionInfo, ICollectionGenericObjects<T>> _storages;
/// <summary>
/// Возвращение списка названий коллекций
/// </summary>
public List<CollectionInfo> Keys => _storages.Keys.ToList();
/// <summary>
/// Ключевое слово, с которого должен начинаться файл
/// </summary>
private readonly string _collectionKey = "CollectionsStorage";
/// <summary>
/// Разделитель для записи ключа и значения элемента словаря
/// </summary>
private readonly string _separatorForKeyValue = "|";
/// <summary>
/// Разделитель для записей коллекции данных в файл
/// </summary>
private readonly string _separatorItems = ";";
public StorageCollection()
{
_storages = new Dictionary<CollectionInfo, ICollectionGenericObjects<T>>();
}
/// <summary>
/// Добавление коллекций в хранилище
/// </summary>
/// <param name="name"></param>
/// <param name="collectionType"></param>
public void AddCollection(string name, CollectionType collectionType)
{
CollectionInfo collectionInfo = new CollectionInfo(name, collectionType, string.Empty);
if ( _storages.ContainsKey(collectionInfo))
{
return;
}
if (collectionType == CollectionType.None) return;
else if (collectionType == CollectionType.Massive)
_storages[collectionInfo] = new MassiveGenericObjects<T>();
else if (collectionType == CollectionType.List)
_storages[collectionInfo] = new ListGenericObjects<T>();
}
/// <summary>
/// Удаление коллекции
/// </summary>
/// <param name="name"></param>
public void DelCollection(CollectionInfo collectionInfo)
{
if (_storages.ContainsKey(collectionInfo))
_storages.Remove(collectionInfo);
}
/// <summary>
/// Доступ к коллекции
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public ICollectionGenericObjects<T>? this[CollectionInfo collectionInfo]
{
get
{
//логика получения объекта
if(_storages.ContainsKey(collectionInfo))
return _storages[collectionInfo];
return null;
}
}
public void SaveData(string filename)
{
if (_storages.Count == 0)
{
throw new Exception("В хранилище отсутствуют коллекции для сохранения");
}
if (File.Exists(filename))
{
File.Delete(filename);
}
using (StreamWriter writer = new(filename))
{
writer.Write(_collectionKey);
foreach (KeyValuePair<CollectionInfo, ICollectionGenericObjects<T>> value in _storages)
{
writer.Write(Environment.NewLine);
if (value.Value.Count == 0)
{
continue;
}
writer.Write(value.Key);
writer.Write(_separatorForKeyValue);
writer.Write(value.Value.GetCollectionType);
writer.Write(_separatorForKeyValue);
writer.Write(value.Value.MaxCount);
writer.Write(_separatorForKeyValue);
foreach (T? item in value.Value.GetItems())
{
string data = item?.GetDataForSave() ?? string.Empty;
if (string.IsNullOrEmpty(data))
{
continue;
}
writer.Write(data);
writer.Write(_separatorItems);
}
}
}
}
/// <summary>
/// Загрузка информации по самолетам в хранилище из файла
/// </summary>
/// <param name="filename">Путь и имя файла</param>
/// <returns>true - загрузка прошла успешно, false - ошибка при загрузке данных</returns>
public void LoadData(string filename)
{
if (!File.Exists(filename))
{
throw new FileNotFoundException($"{filename} не существует");
}
using (StreamReader reader = File.OpenText(filename))
{
string line = reader.ReadLine();
if (line == null || line.Length == 0)
{
throw new IOException("Файл не подходит");
}
if (!line.Equals(_collectionKey))
{
throw new IOException("В файле неверные данные");
}
_storages.Clear();
string strs = "";
while ((strs = reader.ReadLine()) != null)
{
string[] record = strs.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
if (record.Length != 3)
{
continue;
}
CollectionInfo? collectionInfo =
CollectionInfo.GetCollectionInfo(record[0]) ??
throw new Exception("Не удалось определить информацию коллекции:" + record[0]);
ICollectionGenericObjects<T>? collection =
StorageCollection<T>.CreateCollection(collectionInfo.CollectionType) ??
throw new Exception("Не удалось определить тип коллекции:" + record[1]);
collection.MaxCount = Convert.ToInt32(record[1]);
string[] set = record[2].Split(_separatorItems, StringSplitOptions.RemoveEmptyEntries);
foreach (string elem in set)
{
if (elem?.CreateDrawningWarPlane() is T warPlane)
{
try
{
collection.Insert(warPlane);
}
catch (Exception ex)
{
throw new FileFormatException(filename, ex);
}
}
}
_storages.Add(collectionInfo, collection);
}
}
}
/// <summary>
/// Создание коллекции по типу
/// </summary>
/// <param name="collectionType"></param>
/// <returns></returns>
private static ICollectionGenericObjects<T>?
CreateCollection(CollectionType collectionType)
{
return collectionType switch
{
CollectionType.Massive => new MassiveGenericObjects<T>(),
CollectionType.List => new ListGenericObjects<T>(),
_ => null,
};
}
}