private static bool InitializeAspNetCore(IServiceProvider provider, Type startupType, BotApplicationBuilder builder)
{
var startupInterfaceType = Type.GetType("Microsoft.AspNetCore.Hosting.IStartup, Microsoft.AspNetCore.Hosting.Abstractions");
object startup;
if (startupInterfaceType != null)
{
startup = provider.GetService(startupInterfaceType);
if (startup != null)
{
startupType = startup.GetType();
}
}
else
{
startup = null;
}
if (startup == null)
{
if (startupType != null)
{
startup = ActivatorUtilities.CreateInstance(provider, startupType);
}
else
{
return(false);
}
}
var configureMethod = startupType.GetMethod("ConfigureBot");
if (configureMethod == null)
{
return(false);
}
var parameterInfos = configureMethod.GetParameters();
var parameters = new object[parameterInfos.Length];
for (var i = 0; i < parameterInfos.Length; i++)
{
var parameterType = parameterInfos[i].ParameterType;
if (parameterType == typeof(IBotApplicationBuilder))
{
parameters[i] = builder;
}
else
{
parameters[i] = provider.GetRequiredService(parameterType);
}
}
configureMethod.Invoke(startup, parameters);
return(true);
}
internal static IHostBuilder ConfigureDiscordBot(
this IHostBuilder hostBuilder,
bool throwOnError,
Action <IBotApplicationBuilder> configure = null)
{
hostBuilder.Properties[DiscordBotProperty] = true;
hostBuilder.ConfigureServices((ctx, services) =>
{
AddDefaultServices(services);
AddOptions(services, ctx.Configuration);
services.AddHostedService <DiscordBotHostedService>();
services.AddBotApplicationBuilderFactory(provider =>
{
var builder = new BotApplicationBuilder
{
ApplicationServices = provider
};
if (!hostBuilder.Properties.TryGetValue("UseStartup.StartupType", out var value) ||
!(value is Type startupType))
{
startupType = null;
}
if (configure != null)
{
configure.Invoke(builder);
}
else if (!InitializeAspNetCore(provider, startupType, builder))
{
if (throwOnError)
{
throw new InvalidOperationException("Could not find the ASP.Net Core startup");
}
}
return(builder);
});
services.PostConfigure <DiscordOptions>(options =>
{
options.Intents = GetIntents(services);
});
});
return(hostBuilder);
}
public static IServiceCollection AddApplicationBuilder(this IServiceCollection services, Action <IBotApplicationBuilder> factory)
{
services.AddBotApplicationBuilderFactory(provider =>
{
var builder = new BotApplicationBuilder
{
ApplicationServices = provider
};
factory(builder);
return(builder);
});
return(services);
}
