#!/usr/bin/python
from json import dumps, loads
from requests import post

with open('/home/raven/.rpcurl','r') as secret_file:
  rpc_url = secret_file.read().strip()

def rpc(method, *params):
  return loads(post(rpc_url, data=dumps({"method":method, "params":params}), timeout=20).text)['result']

def hex(number, padding=1, reverse=False):
  padded_hex = '%0*x' % (padding*2, number)
  if reverse:
    return ''.join(reversed([padded_hex[char:char+2] for char in range(0, len(padded_hex), 2)]))
  else:
    return padded_hex

def cb_data(height):
  data = hex(3) + hex(height,3) + hex(0, 32)
  size = hex(len(data)/2)
  return size+data+hex(2**32-1)

gbt = rpc('getblocktemplate')
pk_hash = '485f8d241cc00f86854885a9baa74e066141cf39'
cb = hex(2,4,1)+hex(1)+hex(0,32)+hex(2**32-1)+cb_data(gbt['height'])+hex(1)+hex(gbt['coinbasevalue'],8,1)+'1976a914'+pk_hash+'88ac'+hex(0,4)
print cb
print rpc('decoderawtransaction',cb)
#print '{"id":null,"method":"mining.notify","params":["01","'+gbt['previousblockhash']+'"]}'