Check available Minting Capacity before starting the Process and advise if insufficient

[ramaruro]

I understand that the main measure of Minting Capacity is the Overall Available Collateral among all signers. This should be the Total Available ETH vs Total Bonded ETH (currently in Ropsten Available ETH is in Contract 0x35a29348640e8E65568d7DccFaf8F7A8146580E6, I'm not sure how to see the Bonded ETH)

Enhancement Request: Execute a query before starting the process to understand the available Collateral for bonding in the system and advise if there is not enough capacity (i.e so the process is not started).

[Shadowfiend]

There are actually three* possible issues here:

• There are not enough bonds available to back the deposit you are trying to create.
• The TBTC supply cap has been reached, and no further TBTC can be minted (this is later in the process).
• There are insufficient operators available to back the deposit your are trying to create; often this is a variation of the first case.

Agreed that both need clearer errors before a transaction is submitted.