Add storjscan wallets implementation to the satellite. The wallets interface allows you to add and claim new wallets as called by the API. The storjscan specific implementation of this interface uses a wallets DB to associate the user to a wallet address, as well as a storjscan client to request and associate new wallets to the satellite.
Change-Id: I54081edb5545d4e3ee07cf1cce3d3e87cc00c4a1
Why: big.Float is not an ideal type for dealing with monetary amounts,
because no matter how high the precision, some non-integer decimal
values can not be represented exactly in base-2 floating point. Also,
storing gob-encoded big.Float values in the database makes it very hard
to use those values in meaningful queries, making it difficult to do
any sort of analysis on billing.
For better accuracy, then, we can just represent monetary values as
integers (in whatever base units are appropriate for the currency). For
example, STORJ tokens or Bitcoins can not be split into pieces smaller
than 10^-8, so we can store amounts of STORJ or BTC with precision
simply by moving the decimal point 8 digits to the right. For USD values
(assuming we don't want to deal with fractional cents), we can move the
decimal point 2 digits to the right.
To make it easier and less error-prone to deal with the math involved, I
introduce here a new type, monetary.Amount, instances of which have an
associated value _and_ a currency.
Change-Id: I03395d52f0e2473cf301361f6033722b54640265
Jira issue: https://storjlabs.atlassian.net/browse/USR-820
The bonus for depositing STORJ tokens is now added as to the Stripe
balance instead of the to `credits` DB table on the satellite.
Existing unspent bonuses in the `credits` DB table are still processed
as usual when generating invoices. They will be migrated to the Stripe
balance with a separate change.
The bonus is added to the Stripe balance with a separate Credit
transaction. The balance transactions for the deposit and the bonus can
be differentiate by their different description.
The billing history is modified to list the bonus from the Stripe
transactions list.
The workflow for depositing STORJ tokens to the Stripe balance is
improved to survive failures in the middle of the process.
Change-Id: I6a1017984eae34e97c580f9093f7e51ca417b962
