EIP-1559 UI - Wire Up Busy Network Warning

[darkwing]

https://www.figma.com/file/NXvUKcZ0Ocu1GPcT7VxRMx/1559---Gas-Controls?node-id=643%3A5

[darkwing]

When real data exists, we'll need to pipe that information into the EditGasDisplay component as a warning.

[darkwing]

@danjm @brad-decker Do we presently have a method for detecting this case?

[danjm]

Blocked by eth_feeHistory being available from infura

[danjm]

There will be a few different pieces of this:

• add a method to the gas fee controller that simply requests eth_feeHistory and returns the result
• add a helper function to the gas fee controller helpers/utils file that uses the result of eth_feeHistory to calculate whether the network is busy or not
• (possibly... this might need more thought) include eth_feeHistory in the gas fee controller state, and have it be requested and updated during the polling in that controller
• dependent on whether do the immediately above bullet, add an indication of whether the network is busy to the gas fee controller state
• once the above changes are made, update the controllers repo
• update the version of the controllers repo in the extension
• use the new data available to show the warning in the above designs

[danjm]

add a helper function to the gas fee controller helpers/utils file that uses the result of eth_feeHistory to calculate whether the network is busy or not

This might require some discussion

[danjm]

https://github.com/MetaMask/controllers/blob/main/src/gas/GasFeeController.ts

[danjm]

https://gitlab.com/ConsenSys/codefi/products/metaswap/gas-api/-/tree/master