public async Task ApplyRefactoring(Solution solution)
{
try
{
ReadUserInput();
documentsRegistry = await InitializeDocumentRegistry(solution);
invokedMethodDocument = await GetInvokationMethodType(solution);
documentsToCopy.Add(invokedMethodDocument);
await RecursiveMethod(invokedMethodDocument);
var invokedMethodProjectName = invokedMethodDocument.DocumentTypeFullName.Split('.').FirstOrDefault();
startup = documentsRegistry.FirstOrDefault(x => x.DocumentTypeFullName.Contains(invokedMethodProjectName + ".Startup"));
CreateMicroserviceDirectory();
BeginWriting();
}
catch (Exception)
{
Console.WriteLine("There was an error applying the refactoring.");
Environment.Exit(0);
}
}
private async Task RecursiveMethod(DocumentAnalyzerAggregate document)
{
var treeRoot = await document.SyntaxTree.GetRootAsync();
// We're assuming only one class per file.
var isClass = treeRoot.DescendantNodes().OfType <ClassDeclarationSyntax>().FirstOrDefault() != null;
var isInterface = treeRoot.DescendantNodes().OfType <InterfaceDeclarationSyntax>().FirstOrDefault() != null;
if (isClass)
{
await FindTypeDependenciesForType(document);
}
else if (isInterface)
{
var interfaceImplementations = await GetInterfaceImplementations(document);
foreach (var interfaceImplementation in interfaceImplementations)
{
if (!documentsToCopy.Contains(interfaceImplementation))
{
documentsToCopy.Add(interfaceImplementation);
await FindTypeDependenciesForType(interfaceImplementation);
}
}
}
}
private async Task FindTypeDependenciesForType(DocumentAnalyzerAggregate document)
{
var root = await document.SyntaxTree.GetRootAsync();
var classDeclaration = root.DescendantNodes().OfType <ClassDeclarationSyntax>().FirstOrDefault();
foreach (var item in classDeclaration.DescendantNodes())
{
string typeName = null;
if (classDeclaration != null)
{
switch (item)
{
case SimpleBaseTypeSyntax simpleBaseTypeSyntax:
typeName = simpleBaseTypeSyntax.Type.ToString();
break;
case ParameterSyntax parameterSyntax:
typeName = parameterSyntax.Type.ToString();
break;
case IdentifierNameSyntax identifierNameSyntax:
typeName = identifierNameSyntax.ToString();
break;
case SimpleNameSyntax simpleNameSyntax:
typeName = simpleNameSyntax.ToString();
break;
case TypeSyntax typeSyntax:
typeName = typeSyntax.ToString();
break;
}
if (typeName != null)
{
var documentToCopy = documentsRegistry.FirstOrDefault(x => x.DocumentTypeFullName.Contains(typeName));
if (documentToCopy != null && !documentsToCopy.Contains(documentToCopy))
{
documentsToCopy.Add(documentToCopy);
await RecursiveMethod(documentToCopy);
}
}
}
}
}
private async Task <HashSet <DocumentAnalyzerAggregate> > GetInterfaceImplementations(DocumentAnalyzerAggregate interfaceDocument)
{
var implementations = new HashSet <DocumentAnalyzerAggregate>();
foreach (var document in documentsRegistry)
{
var root = await document.SyntaxTree.GetRootAsync();
// We only care about classes implementing interfaces and not interfaces implementing interfaces.
var classDeclaration = root.DescendantNodes().OfType <ClassDeclarationSyntax>().FirstOrDefault();
if (classDeclaration != null)
{
var name = interfaceDocument.Document.Name.Split('.')[0];
var documentLines = classDeclaration.ToString().Split('\n');
var classDeclarationLine = documentLines.FirstOrDefault(x => x.Contains(name));
if (classDeclarationLine != null)
{
var classExtensions = classDeclarationLine.Split(':');
if (classExtensions.Length > 1)
{
var classExtensionsList = classExtensions[1].Split(',');
if (classExtensionsList.FirstOrDefault(x => x.Contains(name)) != null)
{
implementations.Add(document);
}
}
}
}
}
return(implementations);
}