Architecture 

Overview 

AI Universe is a shared foundation layer:

Consuming Extension Code
        |
        v
  AiRequestService
        |
        v
     BaseClient
        |
        v
   Provider APIs

Parallel support:

AiStatisticsService -> OpenAI Usage API -> Processed chart data cache
HttpAuthUtility    -> Protected URL fetching with optional Basic Auth

Main components 

• Request orchestration: AiRequestService
• Provider adapters and payload composition: BaseClient
• Statistics processing: AiStatisticsService
• Engine configuration filtering: AiEngineConfiguration
• Utility and environment helpers: AiUniverseUtilityHelper
• HTTP auth helper: HttpAuthUtility

Configuration model 

Runtime behavior is mostly driven by extension configuration keys from ext_conf_template.txt.

This includes:

• provider keys and models
• default engine selection
• token/temperature values
• basic auth settings

Caching 

The extension registers cache nsaiuniverse_statistics in ext_localconf.php.

Statistics service stores processed data in this cache to reduce repeated usage API calls.

Constraints 

• No native frontend plugin and no Fluid frontend output in this package.
• Primary role is reusable service infrastructure.