def level_of(address):
"""
Return the level of the user who owns the address.
"""
storage = StorageAPI()
level_key = storage.get_level_key(address)
stored_level = storage.get(level_key)
return stored_level
def level_up(address):
"""
Loop up the level of the owner of address. Then raise it
by 1, put it back into storage and return the new value.
"""
storage = StorageAPI()
level_key = storage.get_level_key(address)
level = level_of(level_key)
new_level = level + 1
storage.put(level_key, new_level)
return new_level
def calculate_reward(address):
"""
Apply the calculation function for the user reward.
"""
storage = StorageAPI()
level_key = storage.get_level_key(address)
level = level_of(address)
bonus_factor = 1
if level > 1:
bonus_factor = 2
if level > 3:
bonus_factor = 5
if level > 9:
bonus_factor = 20
basic_reward = 100000000
reward = basic_reward * bonus_factor
return reward
