-RA problem

[jimihendrix272]

At Heathrow the weather had a -RA statement which VATIS could not understand. Later I added -RA and +RA to the json file, but not sure if that will work. John

[coderabbitai[bot]]

Walkthrough

The pull request refactors several asynchronous workflows across the codebase. In the AtisBuilder class, redundant sandboxRequest parameters are removed, and method calls are simplified. Cancellation token support is added to network and text-to-speech operations by updating the method signatures and internal calls in AuthTokenManager, its interface, and TextToSpeechService. Additionally, the AtisStationViewModel now employs multiple CancellationTokenSource instances (and a SemaphoreSlim) to better manage concurrent asynchronous tasks and event flow.

Changes

File(s)	Change Summary
vATIS.../Atis/AtisBuilder.cs	Removed sandboxRequest parameters from BuildVoiceAtis, CreateVoiceAtis, and ParseNodesFromMetar; eliminated conditional delays; updated UpdateIds to include the cancellation token.
vATIS.../Networking/AuthTokenManager.cs, vATIS.../Networking/IAuthTokenManager.cs	Added a CancellationToken parameter to GetAuthToken, integrated cancellation checks (using ThrowIfCancellationRequested), and passed tokens to network methods (PostJsonResponse, ReadAsStringAsync).
vATIS.../TextToSpeech/TextToSpeechService.cs	Updated RequestAudio to include a CancellationToken parameter; added an immediate cancellation check; removed the catch block for OperationCanceledException.
vATIS.../Ui/ViewModels/AtisStationViewModel.cs	Introduced multiple CancellationTokenSource instances and a SemaphoreSlim to manage asynchronous operations; replaced single token usage and streamlined event and error handling logic.

Sequence Diagram(s)

sequenceDiagram
    participant Client as UI
    participant TTS as TextToSpeechService
    participant Auth as AuthTokenManager
    participant Net as Downloader

    Client->>TTS: RequestAudio(text, station, cancellationToken)
    TTS->>TTS: cancellationToken.ThrowIfCancellationRequested()
    TTS->>Auth: GetAuthToken(cancellationToken)
    Auth->>Net: PostJsonResponse(AuthTokenUrl, jsonRequest, cancellationToken)
    Net-->>Auth: Return response
    Auth->>TTS: Return auth token
    TTS->>TTS: Process audio data
    TTS->>Client: Return audio bytes

sequenceDiagram
    participant UI as User Interface
    participant VM as AtisStationViewModel
    participant Hub as AtisHub (EventBus)

    UI->>VM: Trigger voice request / preset change
    VM->>VM: Cancel previous tasks using new CancellationTokenSource
    VM->>Hub: Publish updated ATIS/letter change event
    VM->>VM: Process METAR & record voice asynchronously with dedicated tokens
    VM->>UI: Update view with latest ATIS data

Possibly related PRs

• vatis-project/vatis#144: Updates for cancellation token management in the AtisStationViewModel class, closely related to the new CancellationTokenSource implementations.
• vatis-project/vatis#130: Modifications in method signatures and cancellation token usage within the AtisBuilder class complement the changes made here.
• vatis-project/vatis#59: Changes to the BuildVoiceAtis method signature and parameter handling in the AtisBuilder class directly relate to the sandboxRequest removal.

Poem

I’m a rabbit coding through the night,
Hopping past delays with cancellation in sight,
Dropping old parameters so clean and true,
Async flows now sparkle in a view so new,
With tokens and locks, my code’s a delight! 🐇✨
Happy hops and secure stops—let’s code on right!

✨ Finishing Touches

• [ ] 📝 Generate Docstrings

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