using System;

using System.IO;

using Common.Logging;

namespace ScriptCs.Command

{

internal class RestoreCommand : IRestoreCommand

{

private readonly string _scriptName;

private readonly IFileSystem _fileSystem;

private readonly IPackageAssemblyResolver _packageAssemblyResolver;

private readonly ILog _logger;

public RestoreCommand(string scriptName, IFileSystem fileSystem, IPackageAssemblyResolver packageAssemblyResolver, ILog logger)

{

_scriptName = scriptName;

_fileSystem = fileSystem;

_packageAssemblyResolver = packageAssemblyResolver;

_logger = logger;

}

public CommandResult Execute()

{

_logger.Info("Copying assemblies to bin folder...");

var workingDirectory = _fileSystem.GetWorkingDirectory(_scriptName);

var binFolder = Path.Combine(workingDirectory, Constants.BinFolder);

try

{

if (!_fileSystem.DirectoryExists(binFolder))

_fileSystem.CreateDirectory(binFolder);

var packages = _packageAssemblyResolver.GetAssemblyNames(workingDirectory);

foreach (var package in packages)

{

CopyFile(package, binFolder);

}

_logger.Info("Restore completed successfully.");

return CommandResult.Success;

}

catch (Exception e)

{

_logger.ErrorFormat("Restore failed: {0}.", e.Message);

return CommandResult.Error;

}

}

private void CopyFile(string package, string binFolder)

{

var assemblyFileName = Path.GetFileName(package);

if (assemblyFileName == null) return;

var destFile = Path.Combine(binFolder, assemblyFileName);

var sourceFileLastWriteTime = _fileSystem.GetLastWriteTime(package);

var destFileLastWriteTime = _fileSystem.GetLastWriteTime(destFile);

if (sourceFileLastWriteTime == destFileLastWriteTime)

{

_logger.InfoFormat("Skipped: {0}.", assemblyFileName);

return;

}

_fileSystem.Copy(package, destFile, true);

_logger.InfoFormat("Copied: {0}.", assemblyFileName);

}

}

}