99 lines
4.6 KiB
C#

using DressAtelierContracts.BindingModels;
using DressAtelierContracts.BusinessLogicContracts;
using DressAtelierContracts.StorageContracts;
using DressAtelierDataModels;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.IO.Compression;
using System.Linq;
using System.Reflection;
using System.Runtime.Serialization.Json;
using System.Text;
using System.Threading.Tasks;
namespace DressAtelierBusinessLogic.BusinessLogic
{
public class BackupLogic : IBackupLogic
{
private readonly ILogger _logger;
private readonly IBackupInfo _backupInfo;
public BackupLogic(ILogger<BackupLogic> logger, IBackupInfo backupInfo)
{
_logger = logger;
_backupInfo = backupInfo;
}
public void CreateBackup(BackupSaveBindingModel model)
{
if (_backupInfo == null) { return; }
try
{
_logger.LogDebug("Clear folder");
// removing data from dir and old archive deletion
var dirInfo = new DirectoryInfo(model.FolderName);
if (dirInfo.Exists)
{
foreach (var file in dirInfo.GetFiles())
{
file.Delete();
}
}
_logger.LogDebug("Delete archive");
string fileName = $"{model.FolderName}.zip";
if (File.Exists(fileName))
{
File.Delete(fileName);
}
// taking method for saving
_logger.LogDebug("Get assembly");
var typeIID = typeof(IID);
var assembly = typeIID.Assembly;
if (assembly == null)
{
throw new ArgumentNullException("Assembly wasn't found", nameof(assembly));
}
var types = assembly.GetTypes();
var method = GetType().GetMethod("SaveToFile", BindingFlags.NonPublic | BindingFlags.Instance);
_logger.LogDebug("Find {count} types", types.Length);
foreach (var type in types)
{
if (type.IsInterface && type.GetInterface(typeIID.Name) != null)
{
var modelType = _backupInfo.GetTypeByModelInterface(type.Name);
if (modelType == null)
{
throw new InvalidOperationException($"Class-model wasn't found for {type.Name}");
}
_logger.LogDebug("Call SaveToFile method for {name} type", type.Name);
// call method to perform
method?.MakeGenericMethod(modelType).Invoke(this, new object[] { model.FolderName });
}
}
_logger.LogDebug("Create zip and remove folder");
// archive
ZipFile.CreateFromDirectory(model.FolderName, fileName);
// folder deletion
dirInfo.Delete(true);
}
catch (Exception)
{
throw;
}
}
private void SaveToFile<T>(string folderName) where T : class, new()
{
var records = _backupInfo.GetList<T>();
if (records == null)
{
_logger.LogWarning("{type} type get null list", typeof(T).Name);
return;
}
var jsonFormatter = new DataContractJsonSerializer(typeof(List<T>));
using var fs = new FileStream(string.Format("{0}/{1}.json", folderName, typeof(T).Name), FileMode.OpenOrCreate);
jsonFormatter.WriteObject(fs, records); }
}
}