def _deploy(data: Any, upgrade: bool):
"""
The contracts initial entry point, on deployment.
"""
if upgrade:
return
if get(DEPLOYED).to_bool():
abort()
tx = cast(Transaction, script_container)
#DEBUG_START
#custom owner for tests
if tx.sender is None:
owner = UInt160(b'\x96Wl\x0e**\x1c!\xc4\xac^\xbd)31\x15%A\x1f@')
#DEBUG_END
put(DEPLOYED, True)
put(PAUSED, False)
put(TOKEN_COUNT, 0)
put(MINT_FEE, MINT_FEE_ON_DEPLOY)
auth: List[UInt160] = []
auth.append(tx.sender)
serialized = serialize(auth)
put(AUTH_ADDRESSES, serialized)
wl: List[UInt160] = []
wl.append(tx.sender)
wl_serialized = serialize(auth)
put(WL_ADDRESSES, wl_serialized)
def setWhitelistedAddress(address: UInt160, authorized: bool):
"""
Configure whitelisted addresses.
When this contract address is included in the transaction signature,
this method will be triggered as a VerificationTrigger to verify that the signature is correct.
For example, this method needs to be called when using the no fee mint method.
:param address: the address of the account that is being authorized
:type address: UInt160
:param authorized: authorization status of this address
:type authorized: bool
:return: whether the transaction signature is correct
:raise AssertionError: raised if witness is not verified.
"""
assert verify(), '`acccount` is not allowed for setWhitelistedAddress'
serialized = get(WL_ADDRESSES)
auth = cast(list[UInt160], deserialize(serialized))
if authorized:
found = False
for i in auth:
if i == address:
found = True
if not found:
auth.append(address)
put(WL_ADDRESSES, serialize(auth))
on_auth(address, 1, True)
else:
auth.remove(address)
put(WL_ADDRESSES, serialize(auth))
on_auth(address, 1, False)
def cancel_pool(pool_id: UInt256):
creator_on_storage = get(POOL_OWNER_KEY + pool_id)
if len(creator_on_storage) == 0:
raise Exception("Pool doesn't exist.")
creator = UInt160(creator_on_storage)
if not check_witness(creator):
raise Exception('No authorization.')
if len(get(POOL_RESULT_KEY + pool_id)) > 0:
raise Exception('Pool is finished already')
executing_contract = executing_script_hash
# refund players
bets_key_prefix = POOL_BET_KEY + pool_id
bet = find(bets_key_prefix)
while bet.next():
result_pair: List[bytes] = bet.value
storage_key = result_pair[0]
account = UInt160(storage_key[len(bets_key_prefix):])
transfer_gas(executing_contract, account, PRICE_IN_GAS)
# set result
put(POOL_RESULT_KEY + pool_id, serialize('Cancelled by owner'))
def main(operation: int) -> Any:
# create an array
stuff = ['a', 3, ['j', 3, 5], 'jk', 'lmnopqr']
# serialize it
to_save = serialize(stuff)
put('serialized', to_save)
if operation == 1:
return to_save
elif operation == 2:
to_retrieve = get('serialized')
return to_retrieve
elif operation == 3:
to_retrieve = get('serialized')
deserialized = deserialize(to_retrieve)
return deserialized
elif operation == 4:
to_retrieve = get('serialized')
deserialized = deserialize(to_retrieve)
if isinstance(deserialized, list):
return deserialized[2]
return False
def land_save(land: dict, owner: UInt160) -> bool:
index: str = land["index"]
put(index, serialize(land))
key = LAND_OWNERSHIP + owner
#current_ownership: List[str] = deserialize(get(key))
#current_ownership.append(index)
#put(key, serialize(current_ownership))
return True
def finish_pool(pool_id: UInt256, winner_options: List[str]):
creator = get(POOL_OWNER_KEY + pool_id)
if len(creator) == 0:
raise Exception("Pool doesn't exist.")
if not check_witness(creator):
raise Exception('No authorization.')
if len(get(POOL_RESULT_KEY + pool_id)) > 0:
raise Exception('Pool is finished already')
if len(winner_options) == 0:
raise Exception('At least one winner is required')
# validate all winner options are valid options
winner_options: List[str] = remove_duplicates(winner_options)
pool_options: List[str] = deserialize(get(POOL_OPTIONS_KEY + pool_id))
for option in winner_options:
if option not in pool_options:
raise Exception('Invalid option for this pool')
winners: List[UInt160] = []
# get winner players
bets_key_prefix = POOL_BET_KEY + pool_id
bet = find(bets_key_prefix)
while bet.next():
result_pair = bet.value
storage_key = cast(bytes, result_pair[0])
account_bet = cast(str, result_pair[1])
if account_bet in winner_options:
address = storage_key[len(bets_key_prefix):]
account = UInt160(address)
winners.append(account)
# distribute the prizes
if len(winners) > 0:
total_stake = get(POOL_TOTAL_STAKE_KEY + pool_id).to_int()
prize_per_winner = total_stake // len(winners)
executing_contract = executing_script_hash
for winner in winners:
transfer_gas(executing_contract, winner, prize_per_winner)
# set result
put(POOL_RESULT_KEY + pool_id, serialize(winner_options))
def create_pool(creator: UInt160, description: str,
options: List[str]) -> UInt256:
if not check_witness(creator):
raise Exception('No authorization.')
options: List[str] = remove_duplicates(options)
if len(options) < 2:
raise Exception('Not enough options to create a pool')
for option in options:
if len(option) == 0:
raise Exception('Cannot have an empty option')
tx: Transaction = script_container
pool_id = tx.hash
put(POOL_OWNER_KEY + pool_id, creator)
put(POOL_TOTAL_STAKE_KEY + pool_id, 0)
put(POOL_OPTIONS_KEY + pool_id, serialize(options))
put(POOL_DESCRIPTION_KEY + pool_id, description)
request_image_change()
return pool_id
def serialize_bool() -> bytes:
return serialize(True)
def serialize_str() -> bytes:
return serialize('42')
def land_save(land: dict) -> bool:
owner = cast(UInt160, land["owner"])
put(owner, serialize(land))
return True
def serialize_int() -> bytes:
return serialize(42)
def serialize_dict() -> bytes:
return serialize({1: 1, 2: 1, 3: 2})
def serialize_sequence() -> bytes:
return serialize([2, 3, 5, 7])