private void GenerateMethods(ScriptBuilder scriptBuilder, SignalRHubDesc hub, TypeConverter converter, bool isClient, Func <MethodInfo, TypeConverter, string> generator)
{
var type = isClient ? hub.HubType.GetDnxCompatible().BaseType.GenericTypeArguments.First() : hub.HubType;
type.GetDnxCompatible().GetMethods()
.Where(mi => !mi.IsStatic && mi.GetBaseDefinition().DeclaringType == type)
.OrderBy(mi => mi.Name)
.ToList()
.ForEach(m => scriptBuilder.AppendLineIndented(generator(m, converter)));
}
public SignalRHubDesc AddSignalRHub(Type t)
{
if (t.GetDnxCompatible().BaseType == null || t.GetDnxCompatible().BaseType.FullName == null || !t.GetDnxCompatible().BaseType.FullName.Contains(SignalRGenerator.HUB_TYPE))
{
throw new ArgumentException("Type must directly derive from the Hub type.");
}
var desc = new SignalRHubDesc(t);
_hubs.Add(desc);
return(desc);
}
private string GenerateMethodProxyBinding(MethodInfo methodInfo, TypeConverter converter, SignalRHubDesc hub)
{
var paramList = string.Join(", ", methodInfo.GetParameters().Select(param => param.Name));
return($@"proxy.on(""{methodInfo.Name}"", ({paramList}) => client.{hub.ClientMethodProcessor(methodInfo.Name)}({paramList}));");
}
private string GenerateMethodDeclaration(MethodInfo methodInfo, TypeConverter converter, SignalRHubDesc hub, bool isClient)
{
var result = (isClient ? hub.ClientMethodProcessor : hub.ServerMethodProcessor)(methodInfo.Name) + "(";
result += string.Join(", ", methodInfo.GetParameters().Select(param => param.Name + ": " + converter.GetTypeScriptName(param.ParameterType)));
var returnTypeName = converter.GetTypeScriptName(methodInfo.ReturnType);
returnTypeName = (isClient || returnTypeName == "void") ? "void" : "ISignalRPromise<" + returnTypeName + ">";
result += "): " + returnTypeName + ";";
return(result);
}
private void GenerateHubInterfaces(SignalRHubDesc hub, ScriptBuilder scriptBuilder, TypeConverter converter)
{
if (!hub.HubType.GetDnxCompatible().BaseType.FullName.Contains(HUB_TYPE))
{
throw new ArgumentException("The supplied type does not appear to be a SignalR hub.", "hubType");
}
// Build the client interface
scriptBuilder.AppendLineIndented(string.Format("export interface I{0}Client {{", hub.HubClassName));
using (scriptBuilder.IncreaseIndentation())
{
if (!hub.HubType.GetDnxCompatible().BaseType.GetDnxCompatible().IsGenericType)
{
scriptBuilder.AppendLineIndented("/* Client interface not generated as hub doesn't derive from Hub<T> */");
}
else
{
GenerateMethods(scriptBuilder, hub, converter, true, (mi, tc) => GenerateMethodDeclaration(mi, tc, hub, true));
}
}
scriptBuilder.AppendLineIndented("}");
scriptBuilder.AppendLine();
// Build the function for creating a hub proxy
if (string.IsNullOrEmpty(hub.HubSignalRName))
{
scriptBuilder.AppendLineIndented($"/* function {hub.HubClassName}Client_CreateHubProxy not generated as hub type {hub.HubType.FullName} does not have a HubNameAttribute or the hub name is an empty string. */");
}
else
{
scriptBuilder.AppendLineIndented($"export function {hub.HubClassName}Client_CreateHubProxy(connection: SignalR.Hub.Connection): SignalR.Hub.Proxy {{");
using (scriptBuilder.IncreaseIndentation())
scriptBuilder.AppendLineIndented($"return connection.createHubProxy('{hub.HubSignalRName}');");
scriptBuilder.AppendLineIndented("}");
}
scriptBuilder.AppendLine();
// Build the function for wiring up a proxy to a client interface
if (!hub.HubType.GetDnxCompatible().BaseType.GetDnxCompatible().IsGenericType)
{
scriptBuilder.AppendLineIndented($"/* function {hub.HubClassName}Client_BindProxy not generated as hub doesn't derive from Hub<T> */");
}
else
{
scriptBuilder.AppendLineIndented($"export function {hub.HubClassName}Client_BindProxy(proxy: SignalR.Hub.Proxy, client: I{hub.HubClassName}Client): void {{");
using (scriptBuilder.IncreaseIndentation())
{
GenerateMethods(scriptBuilder, hub, converter, true, (mi, tc) => GenerateMethodProxyBinding(mi, tc, hub));
}
scriptBuilder.AppendLineIndented("}");
}
scriptBuilder.AppendLine();
// Build the interface containing the SERVER methods
scriptBuilder.AppendLineIndented($"interface I{hub.HubClassName} {{");
using (scriptBuilder.IncreaseIndentation())
{
GenerateMethods(scriptBuilder, hub, converter, false, (mi, tc) => GenerateMethodDeclaration(mi, tc, hub, false));
}
scriptBuilder.AppendLineIndented("}");
scriptBuilder.AppendLine();
// Build the proxy class (represents the proxy generated by signalR).
scriptBuilder.AppendLineIndented(string.Format("interface I{0}Proxy {{", hub.HubClassName));
using (scriptBuilder.IncreaseIndentation())
{
scriptBuilder.AppendLineIndented("server: I" + hub.HubClassName + ";");
scriptBuilder.AppendLineIndented("client: I" + hub.HubClassName + "Client;");
}
scriptBuilder.AppendLineIndented("}");
scriptBuilder.AppendLine();
}
