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using Gestor.Application.Helpers;
using Gestor.Infrastructure.Repository.Interface;
using Gestor.Infrastructure.UnitOfWork.Generic;
using Gestor.Infrastructure.UnitOfWork.Logic;
using Gestor.Model.Helper;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
namespace Gestor.Application.Migration
{
public class Migrator
{
private readonly Assembly _executingAssembly;
private static string _connection
{
get;
set;
}
public Migrator()
{
this._executingAssembly = Assembly.GetExecutingAssembly();
}
public async Task<bool> Execute()
{
bool flag;
try
{
string[] allFiles = await this.GetAllFiles();
flag = await this.ExecuteFiles(allFiles);
return flag;
}
catch (Exception exception)
{
}
flag = false;
return flag;
}
private async Task<bool> ExecuteFiles(IEnumerable<string> filesToExecute)
{
bool flag;
IEnumerable<string> strs = filesToExecute;
foreach (string str in
from x in strs
orderby x
select x)
{
using (Stream manifestResourceStream = this._executingAssembly.GetManifestResourceStream(str))
{
if (manifestResourceStream != null)
{
Encoding encoding = Encoding.GetEncoding("ISO-8859-1");
Encoding uTF8 = Encoding.UTF8;
using (StreamReader streamReader = new StreamReader(manifestResourceStream))
{
byte[] bytes = uTF8.GetBytes(streamReader.ReadToEnd());
byte[] numArray = Encoding.Convert(uTF8, encoding, bytes);
if (await Migrator.ExecuteScript(encoding.GetString(numArray)))
{
string str1 = str;
char[] chrArray = new char[] { '\u005F' };
if (!await Migrator.SaveUpdate((long)ValidationHelper.ToInt(ValidationHelper.Clear(ValidationHelper.Index(str1.Split(chrArray), 1)))))
{
flag = false;
return flag;
}
}
else
{
flag = false;
return flag;
}
}
streamReader = null;
}
else
{
continue;
}
}
manifestResourceStream = null;
}
flag = true;
return flag;
}
private static async Task<bool> ExecuteScript(string scriptText)
{
bool flag1 = await Task.Run<bool>(() => {
bool flag;
IEnumerable<string> strs = Regex.Split(scriptText, "^\\s*GO\\s*$", RegexOptions.IgnoreCase | RegexOptions.Multiline);
try
{
if (string.IsNullOrEmpty(Migrator._connection))
{
Migrator._connection = Connection.GetConnection(true);
}
using (SqlConnection sqlConnection = new SqlConnection(Migrator._connection))
{
sqlConnection.Open();
using (SqlCommand sqlCommand = sqlConnection.CreateCommand())
{
foreach (string str in strs)
{
if (str.Trim() == "")
{
continue;
}
sqlCommand.CommandText = str;
sqlCommand.ExecuteNonQuery();
}
}
}
flag = true;
}
catch (Exception exception)
{
flag = false;
}
return flag;
});
return flag1;
}
private async Task<string[]> GetAllFiles()
{
string str = string.Concat(this._executingAssembly.GetName().Name, ".Migration.Files");
long num1 = await Migrator.LastUpdate();
string[] array = this._executingAssembly.GetManifestResourceNames().Where<string>((string r) => {
long num = (long)0;
if (r.StartsWith(str) && r.EndsWith(".SQL"))
{
num = (long)ValidationHelper.ToInt(ValidationHelper.Clear(ValidationHelper.Index(r.Split(new char[] { '\u005F' }), 1)));
}
return num > num1;
}).ToArray<string>();
return array;
}
private static async Task<long> LastUpdate()
{
long num1 = await Task.Run<long>(() => {
long num;
using (UnitOfWork commited = Instancia.Commited)
{
num = commited.get_AtualizacaoRepository().FindLastUpdate();
}
return num;
});
return num1;
}
private static async Task<bool> SaveUpdate(long fileId)
{
bool flag1 = await Task.Run<bool>(() => {
bool flag;
using (UnitOfWork commited = Instancia.Commited)
{
try
{
commited.get_AtualizacaoRepository().Save(fileId);
commited.Commit();
return true;
}
catch (Exception exception)
{
commited.Rollback();
flag = false;
}
}
return flag;
});
return flag1;
}
}
}
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