Here's a report to help with escrow balancing

Over on #1988 I've done some more thinking about how to manage our
escrow across our multiple accounts. This adds a report to the masspay
script to help make decisions about that.

bin/masspay.py

@@ -203,11 +203,37 @@ def post_back_to_gittip():
  raise SystemExit
 
 
-def main():
- print("Looking for files for {} ...".format(ts))
- for filename in (INPUT_CSV, PAYPAL_CSV, GITTIP_CSV):
- print(" [{}] {}".format('x' if os.path.exists(filename) else ' ', filename))
+def run_report():
+ """Print a report to help Determine how much escrow we should store in PayPal.
+ """
+ totals = []
+ max_masspay = max_weekly_growth = D(0)
+ for filename in os.listdir('.'):
+ if not filename.endswith('.input.csv'):
+ continue
+
+ datestamp = filename.split('.')[0]
 
+ totals.append(D(0))
+ for rec in csv.reader(open(filename)):
+ amount = rec[-1]
+ totals[-1] += D(amount)
+
+ max_masspay = max(max_masspay, totals[-1])
+ if len(totals) == 1:
+ print("{} {:8}".format(datestamp, totals[-1]))
+ else:
+ weekly_growth = totals[-1] / totals[-2]
+ max_weekly_growth = max(max_weekly_growth, weekly_growth)
+ print("{} {:8} {:4.1f}".format(datestamp, totals[-1], weekly_growth))
+
+ print()
+ print("Max Withdrawal: ${:9,.2f}".format(max_masspay))
+ print("Max Weekly Growth: {:8.1f}".format(max_weekly_growth))
+ print("5x Current: ${:9,.2f}".format(5 * totals[-1]))
+
+
+def main():
  if not sys.argv[1:]:
  print("Looking for files for {} ...".format(ts))
  for filename in (INPUT_CSV, PAYPAL_CSV, GITTIP_CSV):