public IEnumerable <SourceUnit> Generate(ServiceInfo service)
{
if (service.IsValid)
{
ControllerSourceUnit unit = new ControllerSourceUnit();
CqrsControllerBuilder builder = new CqrsControllerBuilder()
.WithName(service.Name)
.InNamespace(ToNamespace(service.Assembly.GetName().Name)) //TODO
.AddDefaultUsings()
.AddUsing("Microsoft.AspNetCore.Mvc")
.AddUsing("AutoMapper");
foreach (HandlerInfo h in service.Handlers)
{
// we need to construct:
// arguments
// Automapper configuration
// TODO: Refactor and write UT
if (h.IsCommandHandler)
{
GenerateWriteAction(unit, h, builder);
}
else if (h.IsQueryHandler)
{
GenerateReadAction(unit, h, builder);
}
}
unit.Controller = new SourceUnit(builder.Namespace, builder.TypeName, builder.GenerateCode());
return(unit.GetAllUnits());
}
else
{
_logger.Warn("Cannot generate controller for service {serviceName}", service.Name);
}
return(new SourceUnit[0]);
}
private static void GenerateWriteAction(ControllerSourceUnit srcUnit, HandlerInfo handler, CqrsControllerBuilder builder)
{
if (handler.RequestType.GetProperties().Any(x => x.Name == "Id" || x.Name == $"{handler.Service.Name}Id"))
{
var prop = handler.RequestType.GetProperties()
.First(x => x.Name == "Id" || x.Name == $"{handler.Service.Name}Id");
ArgumentCollection arguments = new ArgumentCollection();
var propTypeInfo = (FullTypeNameInfo)prop.PropertyType;
var idArg = arguments.Add(propTypeInfo.ToString(), prop.Name.StartLower());
var cmdArg = arguments.Add(handler.RequestType.Name.EndsWithSingleSuffix("Request", "Command"), "request", "FromBody");
// this is update action
// lets check if this put or post.
// Put assumes that we have command starting with name "Update" or "Modify"
if (handler.RequestType.Name.StartsWithPrefixes("Update", "Modify", "Edit"))
{
// this is pure PUT
// Id is taken from command.id
// ResultResponse Put(int id, updaterequest request);
var responseType = handler.ResponseType.Name.EndsWithSingleSuffix("Response", "Result");
builder.AppendAction(handler, "Put", responseType, HttpVerb.Put,
false, $"api/{handler.Service.Name}/{{{idArg.Name}}}", arguments.ToArray());
srcUnit.Responses.Append(GenerateResponseType(responseType, handler.ResponseType));
srcUnit.ResultToResponseMappers.Append(GenerateResultToResponseMapper(responseType, handler.ResponseType));
srcUnit.Requests.Append(GenerateRequestType(cmdArg.Type, handler.RequestType, prop.PropertyType, prop.Name));
srcUnit.RequestToCommandMappers.Append(GenerateRequestToCommandMapper(cmdArg.Type, handler.RequestType, prop.PropertyType, prop.Name));
builder.AddUsing(handler.ResponseType.Namespace + ".WebApi");
builder.AddUsing(handler.RequestType.Namespace + ".WebApi");
builder.AddUsing(handler.ResponseType.Namespace);
builder.AddUsing(handler.RequestType.Namespace);
}
else
{
// This is custom method
var responseType = handler.ResponseType.Name.EndsWithSingleSuffix("Response", "Result");
string name = handler.RequestType.Name.RemoveSuffixWords("Command").RemoveWords(handler.Service.Name);
builder.AppendAction(handler, name, responseType,
HttpVerb.Post, handler.IsResponseCollection, $"api/{handler.Service.Name}/{{{idArg.Name}}}/{name}",
arguments.ToArray());
srcUnit.Responses.Append(GenerateResponseType(responseType, handler.ResponseType));
srcUnit.ResultToResponseMappers.Append(GenerateResultToResponseMapper(responseType, handler.ResponseType));
srcUnit.Requests.Append(GenerateRequestType(cmdArg.Type, handler.RequestType, prop.PropertyType, prop.Name));
srcUnit.RequestToCommandMappers.Append(GenerateRequestToCommandMapper(cmdArg.Type, handler.RequestType, prop.PropertyType, prop.Name));
builder.AddUsing(handler.ResponseType.Namespace + ".WebApi");
builder.AddUsing(handler.RequestType.Namespace + ".WebApi");
builder.AddUsing(handler.ResponseType.Namespace);
builder.AddUsing(handler.RequestType.Namespace);
}
}
else
{
ArgumentCollection arguments = new ArgumentCollection();
var cmdArg = arguments.Add(handler.RequestType.Name.EndsWithSingleSuffix("Request", "Command"), "request", "FromBody");
// this might be create method
if (handler.RequestType.Name.StartsWithPrefixes("Create", "Insert", "Add"))
{
var responseType = handler.ResponseType.Name.EndsWithSingleSuffix("Response", "Result");
builder.AppendAction(handler, "Post", responseType,
HttpVerb.Post, handler.IsResponseCollection, $"api/{handler.Service.Name}",
arguments.ToArray());
srcUnit.Responses.Append(GenerateResponseType(responseType, handler.ResponseType));
srcUnit.ResultToResponseMappers.Append(GenerateResultToResponseMapper(responseType, handler.ResponseType));
srcUnit.Requests.Append(GenerateRequestType(cmdArg.Type, handler.RequestType));
srcUnit.RequestToCommandMappers.Append(GenerateRequestToCommandMapper(cmdArg.Type, handler.RequestType));
builder.AddUsing(handler.ResponseType.Namespace + ".WebApi");
builder.AddUsing(handler.RequestType.Namespace + ".WebApi");
builder.AddUsing(handler.ResponseType.Namespace);
builder.AddUsing(handler.RequestType.Namespace);
}
else
{
// This is unkown method.
var responseType = handler.ResponseType.Name.EndsWithSingleSuffix("Response", "Result");
string name = handler.RequestType.Name.RemoveSuffixWords("Command").RemoveWords(handler.Service.Name);
builder.AppendAction(handler, name, responseType,
HttpVerb.Post, handler.IsResponseCollection, $"api/{handler.Service.Name}/{name}",
arguments.ToArray());
srcUnit.Responses.Append(GenerateResponseType(responseType, handler.ResponseType));
srcUnit.ResultToResponseMappers.Append(GenerateResultToResponseMapper(responseType, handler.ResponseType));
srcUnit.Requests.Append(GenerateRequestType(cmdArg.Type, handler.RequestType));
srcUnit.RequestToCommandMappers.Append(GenerateRequestToCommandMapper(cmdArg.Type, handler.RequestType));
builder.AddUsing(handler.ResponseType.Namespace + ".WebApi");
builder.AddUsing(handler.RequestType.Namespace + ".WebApi");
builder.AddUsing(handler.ResponseType.Namespace);
builder.AddUsing(handler.RequestType.Namespace);
}
}
}
private void GenerateReadAction(ControllerSourceUnit srcUnit, HandlerInfo handler, CqrsControllerBuilder builder)
{
if (handler.RequestType.GetProperties().Any(x => x.Name == "Id" || x.Name == $"{handler.Service.Name}Id"))
{
// this seems to be a query for one record
if (!handler.IsResponseCollection)
{
}
else
{
// this is query for many records
}
}
else
{
// this seems to be a query for many records.
if (!handler.IsResponseCollection)
{
}
else
{
ArgumentCollection arguments = new ArgumentCollection();
var queryArg = arguments.Add(handler.RequestType.Name.EndsWithSingleSuffix("Request", "Query"), "request", "FromQuery");
// this is query for many records
var responseType = handler.ResponseType.Name.EndsWithSingleSuffix("Response", "Result");
builder.AppendAction(handler, "Get", responseType,
HttpVerb.Get, handler.IsResponseCollection, $"api/{handler.Service.Name}",
arguments.ToArray());
srcUnit.Responses.Append(GenerateResponseType(responseType, handler.ResponseType));
srcUnit.ResultToResponseMappers.Append(GenerateResultToResponseMapper(responseType, handler.ResponseType));
srcUnit.Requests.Append(GenerateRequestType(queryArg.Type, handler.RequestType));
srcUnit.RequestToCommandMappers.Append(GenerateRequestToCommandMapper(queryArg.Type, handler.RequestType));
builder.AddUsing(handler.ResponseType.Namespace + ".WebApi");
builder.AddUsing(handler.RequestType.Namespace + ".WebApi");
builder.AddUsing(handler.ResponseType.Namespace);
builder.AddUsing(handler.RequestType.Namespace);
}
}
}
