# GPL3.0 licensed
# Developed by r3dwall
# http://git.qwik.i2p/r3dwall/wow-calculator

# Import requests to get latest informations
import requests
import sys

# Get hashrate
hr = float(input("Your current hashrate: "))

# Ask permission to make request
ask = input("Can I get the latest info to calculate?(Y/N): ")
if ask.lower() != "y":
    print("To use a proxy, try proxychains")
    sys.exit()

# Get data from last block
getlastblockheader = requests.post("http://muchwow.lol:34568/json_rpc", json={"jsonrpc":"2.0","id":"0","method":"getlastblockheader"}, headers={"Content-Type": "application/json"})

# Get general info from network
get_info = requests.post("http://muchwow.lol:34568/json_rpc", json={"jsonrpc":"2.0","id":"0","method":"get_info"}, headers={"Content-Type": "application/json"})

# Transform into a json readable format
get_info_json = get_info.json()
getlastblockheader_json = getlastblockheader.json()

# Declare necessary variables for calculation
difficulty = get_info_json["result"]["difficulty"]  # Average number of hashes to find a valid one
block_target = get_info_json["result"]["target"] # Target time (in seconds) for the block to be mined
reward = getlastblockheader_json["result"]["block_header"]["reward"]/100000000000  # Amount of $WOW rewarded for mining a block

# Print some current information
print("Difficulty: {}".format(difficulty))
print("Block target: {} seconds".format(block_target))
print("Reward per block: {} WOW\n".format(reward))

# ratio is the division of the number of hashes to be generated in a block_target by the theorical needed number of hashes (difficulty)
ratio = (hr * block_target) / difficulty

# Daily, weekly, monthly and yearly expected rewards
daily = float('%.3f'%((86400 / block_target) * reward * ratio))
weekly = '%.3f'%(daily * 4.32)
monthly = '%.3f'%(daily * 30.5)
yearly = '%.3f'%(daily * 365)

# Array of units for time
units = {"seconds":1, "minutes":60, "hours":60, "days":24}

# Variables for storing the time values
unit = ""
time = difficulty / hr # Time in seconds to find a block

# Find the best unit
for u in units:
    if time/units[u] < 1:
        break
    else:
        unit = u
        time = time / units[u]

# Round up the time
time = '%.3f'%(time)

# Print the results
print("With {0}H/s, it will take you around {1} {2} to mine a block".format(hr, time, unit))
print("Expected gains: {0} WOW daily, {1} WOW weekly, {2} WOW monthly and {3} WOW yearly".format(daily, weekly, monthly, yearly))