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using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Tango.Core;
using Tango.Core.DI;
using Tango.Core.Helpers;
using Tango.PPC.Common.Application;
using Tango.PPC.Common.Connection;
using Tango.PPC.Common.Notifications;
using Tango.PPC.Shared.Updates;
namespace Tango.PPC.Common.UpdatePackages
{
public class DefaultPackageRunner : ExtendedObject, IPackageRunner
{
private JsonSerializerSettings _jsonSettings;
private String _configFile;
private PackagesFile _packagesFile;
public event EventHandler<PackageStateChangedEventArgs> PackageStateChanged;
public event EventHandler<PackageProgressEventArgs> PackageProgress;
public DefaultPackageRunner()
{
_jsonSettings = new JsonSerializerSettings
{
Formatting = Formatting.Indented,
Error = (sender, args) =>
{
args.ErrorContext.Handled = true;
LogManager.Log(args.ErrorContext.Error.Message);
}
};
_jsonSettings.Converters.Add(new StringEnumConverter(false));
_configFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Twine", "Tango", "Packages", "packages.json");
}
public Task<PackagesFile> GetPackagesFile()
{
return Task.Factory.StartNew<PackagesFile>(() =>
{
if (_packagesFile != null)
{
return _packagesFile;
}
else
{
Directory.CreateDirectory(Path.GetDirectoryName(_configFile));
_packagesFile = new PackagesFile();
try
{
if (File.Exists(_configFile))
{
LogManager.Log("Loading packages config from " + _configFile + "...");
_packagesFile = JsonConvert.DeserializeObject<PackagesFile>(File.ReadAllText(_configFile), _jsonSettings);
}
}
catch (Exception ex)
{
LogManager.Log(ex, "Error loading packages file.");
}
return _packagesFile;
}
});
}
private void SavePackagesConfig()
{
Directory.CreateDirectory(Path.GetDirectoryName(_configFile));
String json = String.Empty;
if (_packagesFile != null)
{
json = JsonConvert.SerializeObject(_packagesFile, _jsonSettings);
}
else
{
json = JsonConvert.SerializeObject(new PackagesFile(), _jsonSettings);
}
File.WriteAllText(_configFile, json);
}
public Task<PackageRunnerResult> Run(PackageType type, Version deltaVersion, String packagesFolder)
{
return Task.Factory.StartNew<PackageRunnerResult>(() =>
{
PackageRunnerResult result = new PackageRunnerResult();
PackageContext context = new PackageContext();
context.ApplicationManager = TangoIOC.Default.GetInstance<IPPCApplicationManager>();
context.MachineProvider = TangoIOC.Default.GetInstance<IMachineProvider>();
context.NotificationProvider = TangoIOC.Default.GetInstance<INotificationProvider>();
context.InstalledVersion = context.ApplicationManager.Version;
context.DeltaVersion = deltaVersion;
LogManager.Log($"Running {type}-update packages...");
//Get installed packages.
_packagesFile = GetPackagesFile().Result;
LogManager.Log($"Installed packages file:\n{_packagesFile}");
if (Debugger.IsAttached)
{
LogManager.Log("Debugger attached detected. switching packages folder to main application path...");
//TO DEBUG PACKAGES --
//
//On DEBUG build the packages assemblies are copied to the main application output folder using post-build events.
//Then, if a debugger is attached, we change the packages folder to the main output folder so they can be debugged easily.
packagesFolder = AssemblyHelper.GetCurrentAssemblyFolder();
}
LogManager.Log($"Scanning for packages on '{packagesFolder}'...");
//Get all packages in folder.
foreach (var packageFile in Directory.GetFiles(packagesFolder, "*.dll"))
{
LogManager.Log($"Loading assembly '{Path.GetFileName(packageFile)}'...");
Assembly asm;
//Load assembly and investigate for types based on package type.
try
{
asm = Assembly.LoadFile(packageFile);
}
catch (Exception ex)
{
LogManager.Log(ex, "Error loading assembly!");
continue;
}
try
{
foreach (var packageType in asm.GetTypes().Where(
x => typeof(IPPCPackage).IsAssignableFrom(x) &&
x.GetCustomAttribute<PPCPackageAttribute>() != null &&
x.GetCustomAttribute<PPCPackageAttribute>().Type == type))
{
LogManager.Log($"Checking package '{packageType.FullName}'...");
try
{
//Getting installed package from file.
var installedPackage = _packagesFile.PackageInstallations.SingleOrDefault(x => x.PackageName == packageType.FullName);
//Check if requires installation.
if (installedPackage == null || installedPackage.State != PackageInstallationState.Installed)
{
if (installedPackage == null)
{
LogManager.Log("Package was never installed.");
installedPackage = new PackageInstallation();
installedPackage.State = PackageInstallationState.NotInstalled;
installedPackage.PackageName = packageType.FullName;
installedPackage.Type = type;
_packagesFile.PackageInstallations.Add(installedPackage);
}
else
{
LogManager.Log($"Package installation state is '{installedPackage.State}' due to {installedPackage.FailedReason}");
}
LogManager.Log("Installing package...");
//Install package...
var att = packageType.GetCustomAttribute<PPCPackageAttribute>();
var packageInstance = Activator.CreateInstance(packageType) as IPPCPackage;
if (packageInstance != null)
{
try
{
OnPackageRuns(att.Name, installedPackage.State, installedPackage.Type);
installedPackage.InstallationDate = DateTime.Now;
context.ProgressAction = (message, isIntermediate, progress, total) =>
{
PackageProgress?.Invoke(this, new PackageProgressEventArgs()
{
PackageName = att.Name,
Message = message,
IsIntermediate = isIntermediate,
Progress = progress,
Total = total
});
};
PackageProgress?.Invoke(this, new PackageProgressEventArgs()
{
PackageName = type == PackageType.Pre ? "Preparing" : "Finalizing",
Message = att.Name,
IsIntermediate = true,
Progress = 0,
Total = 100
});
packageInstance.Run(context).GetAwaiter().GetResult();
installedPackage.State = PackageInstallationState.Installed;
installedPackage.FailedReason = null;
OnPackageRuns(att.Name, installedPackage.State, installedPackage.Type);
LogManager.Log("Package installed successfully.");
if (att.RequiresRestart)
{
result.RestartRequired = true;
}
Thread.Sleep(2000);
}
catch (Exception ex)
{
LogManager.Log(ex, "Package installation failed.");
installedPackage.State = PackageInstallationState.Failed;
installedPackage.FailedReason = ex.FlattenMessage();
OnPackageRuns(att.Name, installedPackage.State, installedPackage.Type);
continue;
}
}
}
else
{
LogManager.Log("Package is already installed.");
}
}
catch (Exception ex)
{
LogManager.Log(ex, "Error in handling the package!");
continue;
}
}
}
catch (Exception ex)
{
LogManager.Log(ex, "Error investigating assembly!");
continue;
}
}
//Save package file.
LogManager.Log("Running packages has completed. Saving packages config file.");
try
{
SavePackagesConfig();
}
catch (Exception ex)
{
LogManager.Log(ex, "Error saving packages file!");
}
return result;
});
}
public Task<bool> IsPackageInstallationRequired(PackageType type, String packagesFolder)
{
return Task.Factory.StartNew<bool>(() =>
{
LogManager.Log("Checking if any package installation is required...");
_packagesFile = GetPackagesFile().Result;
//Get all packages in folder.
foreach (var packageFile in Directory.GetFiles(packagesFolder, "*.dll"))
{
LogManager.Log($"Loading assembly '{Path.GetFileName(packageFile)}'...");
Assembly asm;
//Load assembly and investigate for types based on package type.
try
{
asm = Assembly.LoadFile(packageFile);
}
catch (Exception ex)
{
LogManager.Log(ex, "Error loading assembly!");
continue;
}
try
{
foreach (var packageType in asm.GetTypes().Where(
x => typeof(IPPCPackage).IsAssignableFrom(x) &&
x.GetCustomAttribute<PPCPackageAttribute>() != null &&
x.GetCustomAttribute<PPCPackageAttribute>().Type == type))
{
LogManager.Log($"Checking package '{packageType.FullName}'...");
try
{
//Getting installed package from file.
var installedPackage = _packagesFile.PackageInstallations.SingleOrDefault(x => x.PackageName == packageType.FullName);
//Check if requires installation.
if (installedPackage == null || installedPackage.State != PackageInstallationState.Installed)
{
if (installedPackage == null)
{
LogManager.Log("Package was never installed.");
return true;
}
else
{
LogManager.Log($"Package installation state is '{installedPackage.State}' due to {installedPackage.FailedReason}");
return true;
}
}
else
{
LogManager.Log("Package is already installed.");
}
}
catch (Exception ex)
{
LogManager.Log(ex, "Error in handling the package!");
continue;
}
}
}
catch (Exception ex)
{
LogManager.Log(ex, "Error investigating assembly!");
continue;
}
}
LogManager.Log("No packages to install.");
return false;
});
}
protected virtual void OnPackageRuns(String packageName, PackageInstallationState state, PackageType type)
{
PackageStateChanged?.Invoke(this, new PackageStateChangedEventArgs()
{
PackageName = packageName,
State = state,
PackageType = type,
});
}
}
}
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