def liquidity_info(app, log, totals):
"""
Calculate the current amount of liquidity in ranks 1 and 2 and submit them to Nu
:param totals:
:param log:
:param rpc:
:param app:
:return:
"""
rpc = get_rpc(app, log)
if rpc is None:
return
for exchange in app.config['exchanges']:
for unit in app.config['{}.units'.format(exchange)]:
for rank in app.config['{}.{}.bid.ranks'.format(exchange, unit)]:
identifier = "1:{}:{}:{}.{}".format(
'NBT{}'.format(unit.upper()),
exchange,
app.config['pool.name'],
rank
)
if rpc is not None:
try:
# get a connection to the nud rpc interface
rpc.liquidityinfo(
'B',
totals[exchange][unit]['bid'][rank],
totals[exchange][unit]['ask'][rank],
app.config['pool.grant_address'],
identifier
)
except JSONRPCException as e:
log.error('Sending liquidity info failed: {}'.format(e.message))
log.info(
'sent liquidity info for %s: ask=%s, bid=%s',
identifier,
totals[exchange][unit]['ask'][rank],
totals[exchange][unit]['bid'][rank]
)
def pay(app, log):
"""
Pay all users who have a balance greater than the minimum payout
:param log:
:param rpc:
:param app:
:return:
"""
log.info('payout started')
# get the credit details from the database
conn = database.get_db(app)
db = conn.cursor()
db.execute("SELECT c.id,c.key,c.reward,u.address FROM credits AS c INNER JOIN "
"users AS u on u.key=c.key WHERE c.paid=0")
rewards = db.fetchall()
# Calculate the total credit for each unique address
user_rewards = {}
for reward in rewards:
if reward[3] not in user_rewards:
user_rewards[reward[3]] = 0.00
user_rewards[reward[3]] += float(reward[2])
# remove those which don't meet the minimum payout threshold
# and round to 6dp
user_payouts = user_rewards.copy()
for address in user_rewards:
if user_rewards[address] < float(app.config['pool.minimum_payout']):
del(user_payouts[address])
continue
user_payouts[address] = round(float(user_payouts[address]), 6)
if not user_payouts:
log.info('no-one to payout to: %s', user_rewards)
timer_time = 86400.0
else:
# SendMany from nud. Report any error to log output
try:
# get an rpc connection
rpc = get_rpc(app, log)
rpc.sendmany("", user_payouts)
log.info('payout successful: \'%s\'', json.dumps(user_payouts))
# mark credits to paid addresses as paid
for reward in rewards:
if reward[3] in user_payouts:
db.execute('UPDATE credits SET paid=1 WHERE id=%s', (reward[0],))
# set the timer for the next payout
timer_time = 86400.0
except JSONRPCException as e:
log.error('Payout failed - %s: \'%s\'', e.message, json.dumps(user_payouts))
timer_time = 120.0
except (socket.error, CannotSendRequest, ValueError):
log.error('Payout failed - no connection with nud: \'%s\'', json.dumps(
user_payouts))
timer_time = 120.0
# reset timer
payout_timer = Timer(timer_time, pay,
kwargs={'app': app, 'log': log})
payout_timer.name = 'payout_timer'
payout_timer.daemon = True
payout_timer.start()
# update the next payout time
db.execute('UPDATE info SET value=%s WHERE key=%s', (int(time.time() + timer_time),
'next_payout_time'))
conn.commit()
conn.close()