[Persistence] Removing code duplication, improving error handling in shouldHydrateGenesisDb function and refactoring Create function

[innocent-saeed36]

This is the last PR I'll be submitting not to spam GitHub area with non consistent PRs. If you still find them helpful, feel free to let me know.

Change 1:

The existing code has two identical lines that serve the same purpose, which is to check at compile-time that persistenceModule implements the modules.PersistenceModule interface. Including this line twice doesn't provide any additional benefit.

Change 2:

In the current code, if there is an error when calling readCtx.GetMaximumBlockHeight(), the function simply returns true for shouldHydrateGenesisDb and ignores the error. This might lead to incorrect program behavior because the error could indicate a problem that needs to be resolved. In the revised code, the function returns the error itself, allowing the caller to handle it appropriately.

New codes comes with improved error handling in shouldHydrateGenesisDb function. If there's an error when calling readCtx.GetMaximumBlockHeight(), the function now correctly returns the error to the caller. This change enhances the robustness of the code by ensuring that potential errors are not silently ignored and can be properly dealt with by the calling function.

Change 3:

In the current code, there is an unnecessary else statement after the if block that checks shouldHydrateGenesis. As the if block returns if there's an error, the following code can be moved outside of the else block. Removing the else statement makes the code simpler, easier to read, and more "Go idiomatic", as Go encourages avoiding unnecessary else after return in if.

[Olshansk]

This looks good to me! @innocent-saeed36, do you mind sharing what tools/prompts you used to find these changes? It would be really awesome to work together on automating it!

[Olshansk]

Closing per the broken build and @bryanchriswhite's comment.

[innocent-saeed36]

This looks good to me! @innocent-saeed36, do you mind sharing what tools/prompts you used to find these changes? It would be really awesome to work together on automating it!

Hello @Olshansk , to help you how to detect possible improvements and potential bugs, it's useful to use GPT-4 for the entire .go file and use it for almost any file in the entire codebase. It unfortunately cannot understand interconnections among files and functions as it cannot use multiple files, but prompts that can help a bit is: extensively analyze the following code, tell me if there are any bugs, potential bugs or places for improvements:

and then copy paste the entire .go file content. It can be automated I guess for all .go (and other) files to see where it makes sense to make improvements. Thanks and sorry for the slower response. Feel free to ping me if you need me for something else or if you want to discuss further on Discord.