feat: add generating item history using AI

[ktos]

No description provided.

[ktos]

Generating of item history using AI is now behind a feature flag which must be set in appsettings.json, e.g.:

"FeatureFlags": {
  "UseAI": true
}

[ktos]

DO NOT MERGE YET!

Still - if there is no secrets configuration, the AIProvider cannot be constructed and throws. How should we proceed?

We should not use FeatureManagement in a constructor (as it is async), and we cannot register services based on features? I am not sure.

[purifetchi]

DO NOT MERGE YET!

Still - if there is no secrets configuration, the AIProvider cannot be constructed and throws. How should we proceed?

We should not use FeatureManagement in a constructor (as it is async), and we cannot register services based on features? I am not sure.

you actually can use featuremanagement outside a service scope: https://stackoverflow.com/questions/61659144/how-to-get-featuremanager-in-configureservices

we'd just have to manually create the feature manager class and pass to it our config file

[ktos]

Ok, so I created a AddFeatureGatedServices() extension to the IServiceCollection and now AI services are registered only if the feature flag in a config file is set. Using serviceProvider, because manually constructing everything was not working properly.

[ktos]

Additionally, codestral suggested me something which may be even better:

public static class FeatureFlagServiceExtension
{
    public static IServiceCollection AddTransientIfFeatureEnabled<TInterface, TImplementation>(this IServiceCollection services, string featureName) where TImplementation : class, TInterface
        => services.AddTransientIfFeatureEnabled(featureName, typeof(TInterface), typeof(TImplementation));

    public static IServiceCollection AddTransientIfFeatureEnabled(this IServiceCollection services, string featureName, Type serviceType, Type implementationType)
    {
        var featureManager = services.BuildServiceProvider().GetRequiredService<IFeatureManagerSnapshot>();

        if (featureManager[featureName].Value)
            return services.AddTransient(serviceType, implementationType);

        return services;
    }

    // Add similar methods for AddScoped and AddSingleton if needed...
}

So it should be used something like:

services.AddSingletonIfFeatureEnabled<IMyService, MyService>("MyFeatureFlag");

Not sure if it is more readable than current version.

[purifetchi]

Additionally, codestral suggested me something which may be even better:

public static class FeatureFlagServiceExtension
{
    public static IServiceCollection AddTransientIfFeatureEnabled<TInterface, TImplementation>(this IServiceCollection services, string featureName) where TImplementation : class, TInterface
        => services.AddTransientIfFeatureEnabled(featureName, typeof(TInterface), typeof(TImplementation));

    public static IServiceCollection AddTransientIfFeatureEnabled(this IServiceCollection services, string featureName, Type serviceType, Type implementationType)
    {
        var featureManager = services.BuildServiceProvider().GetRequiredService<IFeatureManagerSnapshot>();

        if (featureManager[featureName].Value)
            return services.AddTransient(serviceType, implementationType);

        return services;
    }

    // Add similar methods for AddScoped and AddSingleton if needed...
}

So it should be used something like:

services.AddSingletonIfFeatureEnabled<IMyService, MyService>("MyFeatureFlag");

Not sure if it is more readable than current version.

i actually like this one better!