DTSW-7564-Add-Duckietown-Shell-billboards-to-the-Duckiematrix

[liammcalpineduckietown]

This pull request refactors the way billboards are selected and displayed in the dt_shell shell. The main improvement is separating the logic for retrieving billboard names from the logic for selecting and displaying a billboard, making the code more modular and easier to maintain. Additionally, the process of selecting a billboard is now more explicit and relies on a weighted random selection based on priority.

Billboard selection and display refactor:

• Split the billboard retrieval logic into two static methods: get_billboard_names, which returns a weighted list of billboard names based on priority, and get_billboard, which selects a random billboard from this list and returns its content. [1] [2]
• Updated the __init__ method to use the new methods for fetching billboard names and selecting a billboard, improving clarity and separation of concerns.
• Changed the return value for get_billboard_names to return an empty list when no billboards are available, instead of None, standardizing the output type.

[Tuxliri]

@liammcalpineduckietown how are the additional keys handled for existing databases?

[liammcalpineduckietown]

@liammcalpineduckietown how are the additional keys handled for existing databases?

They are handled by the Duckiematrix Renderer using the string.IsNullOrEmpty method: https://github.com/duckietown/duckiematrix/pull/12/changes/8c2c53fdef4eed4ce2113364af3c78627a65a91b

[Tuxliri]

@liammcalpineduckietown how are the additional keys handled for existing databases?

They are handled by the Duckiematrix Renderer using the string.IsNullOrEmpty method: https://github.com/duckietown/duckiematrix/pull/12/changes/8c2c53fdef4eed4ce2113364af3c78627a65a91b

Yeah I would implement a earning to avoid it failing silently

[liammcalpineduckietown]

@liammcalpineduckietown how are the additional keys handled for existing databases?

They are handled by the Duckiematrix Renderer using the string.IsNullOrEmpty method: duckietown/duckiematrix@8c2c53f

Yeah I would implement a earning to avoid it failing silently

Not every billboard needs graphics or an end time.

[Tuxliri]

@liammcalpineduckietown how are the additional keys handled for existing databases?

They are handled by the Duckiematrix Renderer using the string.IsNullOrEmpty method: duckietown/duckiematrix@8c2c53f

Yeah I would implement a earning to avoid it failing silently

Not every billboard needs graphics or an end time.

Yeah good point, I'm approving then.