(Feature) Enhance error messages on buy sell

Agupane commented 5 years ago

Connects #443 . It should look like this:

Description

Adds error component on buy_sell component, if an error occurs it will catch it and show an error card based on the error message with two timeouts, one for deleting the btnError text and the other for deleting the error card
Creates new exceptions: -- InsufficientTokenBalanceException: throwed if the user wants to sell more tokens than the amount he has -- InsufficientOrdersAmountException: throwed if the user wants to fill an not-enough number of orders (replaces old window.alert message) -- InsufficientFeeBalanceException: throwed if the user does not have enough 0x to pay fees -- InsufficientEthDepositBalanceException: throwed if the user want's to wrap an unavailable amount of ETH
Now the startBuySellMarketSteps action, before starting the buySellMarketSteps, will check if the amount of quoteToken is enough to pay the orders, otherwise it will throw an InsufficientTokenBalanceException
Also adds the getTotalEthBalance, will return the amount of weth+Eth of the user account

fvictorio commented 5 years ago

Can we make that zrx uppercase?

Agupane commented 5 years ago

It's done @fvictorio

unjapones commented 5 years ago

Talked with @Agupane about the missing warning icon/styles: issue #470 will address that, so we can merge this PR.

cc @gabitoesmiapodo