Transaction #1880

Hash 8c4bf36d15e9dc2e55ecb45be511aa21d928f288ee9fc143f3a59296e8f0deb8
Status Success
Timestamp 406 days ago - 3/23/2023, 10:06:20 PM UTC+0
Block 1880
Stamps Used 990
Burned Fee 0.05857988 TAU
From 42a13c664781a24ab4aca978abb685d9c07ef9ae64a2af865a043e3186a66907 
Contract Name submission
Function Name submit_contract

Additional Info
Nonce 72
Processor e79133b02cd2a84e2ce5d24b2f44433f61f0db7e10acedfc241e94dff06f710a
Signature daaf6bca3032be792b6d51d725bbf463e9a5897cb2f8909650fbb912c90dd21df00c255e202f88f390df5457f14d00bac140c47c946f15921c9d7ed9ca44de0b
Stamps Supplied 1000
Stamps per TAU 169

Kwargs

code I = importlib v1_state = ForeignHash( foreign_contract="con_rocketswap_official_v1_1", foreign_name="state" ) v1_discount = ForeignHash( foreign_contract="con_rocketswap_official_v1_1", foreign_name="discount" ) token_interface = [ I.Func("transfer", args=("amount", "to")), I.Func("approve", args=("amount", "to")), I.Func("transfer_from", args=("amount", "to", "main_account")), ] base = Variable() pairs = Hash() prices = Hash() lp_points = Hash() reserves = Hash(default_value=[0, 0]) state = Hash() @construct def init(base_contract: str): base.set(base_contract) state["OWNER"] = ctx.caller @export def create_market(contract: str, base_amount: float, token_amount: float): assert contract != base.get(), "Cannot create a market for the base token!" assert pairs[contract] is None, "Market already exists!" assert contract != v1_state["TOKEN_CONTRACT" ], "Only operator can create this market!" assert base_amount > 0 and token_amount > 0, "Must provide base amount and token amount!" base_token = I.import_module(base.get()) token = I.import_module(contract) assert I.enforce_interface(base_token, token_interface), "Invalid token interface!" assert I.enforce_interface(token, token_interface), "Invalid token interface!" real_base_amount = balance_difference( base_token, contract=base.get(), amount=base_amount ) real_token_amount = balance_difference( token, contract=contract, amount=token_amount ) prices[contract] = real_base_amount / real_token_amount pairs[contract] = True lp_points[contract, ctx.caller] = 100 lp_points[contract] = 100 reserves[contract] = [real_base_amount, real_token_amount] return True @export def liquidity_balance_of(contract: str, account: str): return lp_points[contract, account] @export def add_liquidity(contract: str, base_amount: float): assert pairs[contract] is True, "Market does not exist!" assert base_amount > 0, "Must provide base amount!" base_token = I.import_module(base.get()) token = I.import_module(contract) assert I.enforce_interface(base_token, token_interface), "Invalid token interface!" assert I.enforce_interface(token, token_interface), "Invalid token interface!" token_amount = base_amount / prices[contract] real_base_amount = balance_difference( base_token, contract=base.get(), amount=base_amount ) real_token_amount = balance_difference( token, contract=contract, amount=token_amount ) total_lp_points = lp_points[contract] base_reserve, token_reserve = reserves[contract] points_per_base = total_lp_points / base_reserve lp_to_mint = points_per_base * real_base_amount lp_points[contract, ctx.caller] += lp_to_mint lp_points[contract] += lp_to_mint reserves[contract] = [ base_reserve + real_base_amount, token_reserve + real_token_amount, ] return lp_to_mint @export def remove_liquidity(contract: str, amount: float): assert pairs[contract] is True, "Market does not exist!" assert amount > 0, "Must be a positive LP point amount!" assert lp_points[contract, ctx.caller] >= amount, "Not enough LP points to remove!" base_token = I.import_module(base.get()) token = I.import_module(contract) assert I.enforce_interface(base_token, token_interface), "Invalid token interface!" assert I.enforce_interface(token, token_interface), "Invalid token interface!" lp_percentage = amount / lp_points[contract] base_reserve, token_reserve = reserves[contract] base_amount = base_reserve * lp_percentage token_amount = token_reserve * lp_percentage base_token.transfer(to=ctx.caller, amount=base_amount) token.transfer(to=ctx.caller, amount=token_amount) lp_points[contract, ctx.caller] -= amount lp_points[contract] -= amount assert lp_points[contract] > 1, "Not enough remaining liquidity!" new_base_reserve = base_reserve - base_amount new_token_reserve = token_reserve - token_amount assert new_base_reserve > 0 and new_token_reserve > 0, "Not enough remaining liquidity!" reserves[contract] = [new_base_reserve, new_token_reserve] return base_amount, token_amount @export def transfer_liquidity(contract: str, to: str, amount: float): assert amount > 0, "Must be a positive LP point amount!" assert lp_points[contract, ctx.caller ] >= amount, "Not enough LP points to transfer!" lp_points[contract, ctx.caller] -= amount lp_points[contract, to] += amount # @export # def approve_liquidity( # contract: str, to: str, amount: float, ctx_to_signer: bool = False # ): # assert amount > 0, "Cannot send negative balances!" # if ctx_to_signer is True: # lp_points[contract, ctx.signer, to] += amount # else: # lp_points[contract, ctx.caller, to] += amount @export def approve_liquidity(contract: str, to: str, amount: float): assert amount > 0, 'Cannot send negative balances!' lp_points[contract, ctx.caller, to] += amount @export def transfer_liquidity_from(contract: str, to: str, main_account: str, amount: float): assert amount > 0, "Cannot send negative balances!" assert lp_points[contract, main_account, ctx.caller ] >= amount, "Not enough coins approved to send! You have {} and are trying to spend {}".format( lp_points[main_account, ctx.caller], amount) assert lp_points[contract, main_account] >= amount, "Not enough coins to send!" lp_points[contract, main_account, ctx.caller] -= amount lp_points[contract, main_account] -= amount lp_points[contract, to] += amount @export def buy( contract: str, base_amount: float, minimum_received: float, token_fees: bool = False, ): assert pairs[contract] is True, "Market does not exist!" assert base_amount > 0, "Must provide base amount!" base_token = I.import_module(base.get()) token = I.import_module(contract) amm_token = I.import_module(v1_state["TOKEN_CONTRACT"]) assert I.enforce_interface(base_token, token_interface), "Invalid token interface!" assert I.enforce_interface(token, token_interface), "Invalid token interface!" if contract == v1_state["TOKEN_CONTRACT"]: real_base_amount = balance_difference( base_token, contract=base.get(), amount=base_amount ) tokens_purchased = internal_buy( contract=v1_state["TOKEN_CONTRACT"], base_amount=real_base_amount ) token.transfer(amount=tokens_purchased, to=ctx.caller) return tokens_purchased real_base_amount = balance_difference( base_token, contract=base.get(), amount=base_amount ) base_reserve, token_reserve = reserves[contract] k = base_reserve * token_reserve new_base_reserve = base_reserve + real_base_amount new_token_reserve = k / new_base_reserve tokens_purchased = token_reserve - new_token_reserve fee_percent = v1_state["FEE_PERCENTAGE"] * v1_discount[ctx.caller] fee = tokens_purchased * fee_percent if token_fees is True: fee = fee * v1_state["TOKEN_DISCOUNT"] rswp_k = base_reserve * token_reserve rswp_new_token_reserve = token_reserve + fee rswp_new_base_reserve = rswp_k / rswp_new_token_reserve rswp_base_purchased = base_reserve - rswp_new_base_reserve rswp_base_purchased += rswp_base_purchased * fee_percent rswp_base_reserve_2, rswp_token_reserve_2 = reserves[v1_state["TOKEN_CONTRACT"]] rswp_k_2 = rswp_base_reserve_2 * rswp_token_reserve_2 rswp_new_base_reserve_2 = rswp_base_reserve_2 + rswp_base_purchased rswp_new_base_reserve_2 += rswp_base_purchased * fee_percent rswp_new_token_reserve_2 = rswp_k_2 / rswp_new_base_reserve_2 sell_amount = rswp_token_reserve_2 - rswp_new_token_reserve_2 sell_amount_with_fee = sell_amount * v1_state["BURN_PERCENTAGE"] amm_token.transfer_from( amount=sell_amount, to=ctx.this, main_account=ctx.caller ) base_received = internal_sell( contract=v1_state["TOKEN_CONTRACT"], token_amount=sell_amount_with_fee ) amm_token.transfer( amount=sell_amount - sell_amount_with_fee, to=v1_state["BURN_ADDRESS"] ) token_received = internal_buy(contract=contract, base_amount=base_received) new_base_reserve += ( reserves[contract][0] - base_reserve ) new_token_reserve += ( reserves[contract][1] - token_reserve ) new_token_reserve = new_token_reserve + token_received else: tokens_purchased = tokens_purchased - fee burn_amount = internal_buy( contract=v1_state["TOKEN_CONTRACT"], base_amount=internal_sell( contract=contract, token_amount=fee - fee * v1_state["BURN_PERCENTAGE"] ), ) new_base_reserve += reserves[contract][0] - base_reserve new_token_reserve += reserves[contract][1] - token_reserve new_token_reserve = new_token_reserve + fee * v1_state["BURN_PERCENTAGE"] amm_token.transfer(amount=burn_amount, to=v1_state["BURN_ADDRESS"]) if minimum_received != None: assert tokens_purchased >= minimum_received, "Only {} tokens can be purchased, which is less than your minimum, which is {} tokens.".format( tokens_purchased, minimum_received) assert tokens_purchased > 0, "Token reserve error!" token.transfer(amount=tokens_purchased, to=ctx.caller) reserves[contract] = [new_base_reserve, new_token_reserve] prices[contract] = new_base_reserve / new_token_reserve return tokens_purchased @export def sell( contract: str, token_amount: float, minimum_received: float, token_fees: bool = False, ): assert pairs[contract] is True, "Market does not exist!" assert token_amount > 0, "Must provide base amount and token amount!" base_token = I.import_module(base.get()) token = I.import_module(contract) amm_token = I.import_module(v1_state["TOKEN_CONTRACT"]) assert I.enforce_interface(base_token, token_interface), "Invalid token interface!" assert I.enforce_interface(token, token_interface), "Invalid token interface!" if contract == v1_state["TOKEN_CONTRACT"]: real_token_amount = balance_difference( token, contract=contract, amount=token_amount ) base_purchased = internal_sell( contract=v1_state["TOKEN_CONTRACT"], token_amount=real_token_amount ) base_token.transfer(amount=base_purchased, to=ctx.caller) return base_purchased real_token_amount = balance_difference( token, contract=contract, amount=token_amount ) base_reserve, token_reserve = reserves[contract] k = base_reserve * token_reserve new_token_reserve = token_reserve + real_token_amount new_base_reserve = k / new_token_reserve base_purchased = base_reserve - new_base_reserve fee_percent = v1_state["FEE_PERCENTAGE"] * v1_discount[ctx.caller] fee = base_purchased * fee_percent if token_fees is True: fee = fee * v1_state["TOKEN_DISCOUNT"] rswp_base_reserve, rswp_token_reserve = reserves[v1_state["TOKEN_CONTRACT"]] rswp_k = rswp_base_reserve * rswp_token_reserve rswp_new_base_reserve = rswp_base_reserve + fee rswp_new_base_reserve += fee * fee_percent rswp_new_token_reserve = rswp_k / rswp_new_base_reserve sell_amount = rswp_token_reserve - rswp_new_token_reserve sell_amount_with_fee = sell_amount * v1_state["BURN_PERCENTAGE"] amm_token.transfer_from( amount=sell_amount, to=ctx.this, main_account=ctx.caller ) base_received = internal_sell( contract=v1_state["TOKEN_CONTRACT"], token_amount=sell_amount_with_fee ) amm_token.transfer( amount=sell_amount - sell_amount_with_fee, to=v1_state["BURN_ADDRESS"] ) new_base_reserve = new_base_reserve + base_received else: base_purchased = base_purchased - fee burn_amount = fee - fee * v1_state["BURN_PERCENTAGE"] new_base_reserve = new_base_reserve + fee * v1_state["BURN_PERCENTAGE"] token_received = internal_buy( contract=v1_state["TOKEN_CONTRACT"], base_amount=burn_amount ) amm_token.transfer(amount=token_received, to=v1_state["BURN_ADDRESS"]) if minimum_received != None: assert base_purchased >= minimum_received, "Only {} TAU can be purchased, which is less than your minimum, which is {} TAU.".format( base_purchased, minimum_received) assert base_purchased > 0, "Token reserve error!" base_token.transfer(amount=base_purchased, to=ctx.caller) reserves[contract] = [new_base_reserve, new_token_reserve] prices[contract] = new_base_reserve / new_token_reserve return base_purchased @export def create_rswp_market(base_amount: float, token_amount: float): assert ctx.caller == state["OWNER"], "Only owner can call this method!" assert pairs[v1_state["TOKEN_CONTRACT"]] is None, "Market already exists!" assert base_amount > 0 and token_amount > 0, "Must provide base amount and token amount!" base_token = I.import_module(base.get()) amm_token = I.import_module(v1_state["TOKEN_CONTRACT"]) assert I.enforce_interface(base_token, token_interface), "Invalid token interface!" base_token.transfer_from(amount=base_amount, to=ctx.this, main_account=ctx.caller) amm_token.transfer_from(amount=token_amount, to=ctx.this, main_account=ctx.caller) prices[v1_state["TOKEN_CONTRACT"]] = base_amount / token_amount pairs[v1_state["TOKEN_CONTRACT"]] = True lp_points[v1_state["TOKEN_CONTRACT"], ctx.caller] = 100 lp_points[v1_state["TOKEN_CONTRACT"]] = 100 reserves[v1_state["TOKEN_CONTRACT"]] = [base_amount, token_amount] return True @export def sync_reserves(contract: str): assert v1_state["SYNC_ENABLED"] is True, "Sync is not enabled!" token_balance = ForeignHash(foreign_contract=contract, foreign_name="balances") new_balance = token_balance[ctx.this] assert new_balance > 0, "Cannot be a negative balance!" reserves[contract][1] = new_balance return new_balance def balance_difference(token, contract: str, amount: float): token_balance = ForeignHash(foreign_contract=contract, foreign_name="balances") v2_balance_1 = token_balance[ctx.this] token.transfer_from(amount=amount, to=ctx.this, main_account=ctx.caller) v2_balance_2 = token_balance[ctx.this] real_amount = v2_balance_2 - v2_balance_1 return real_amount def internal_buy(contract: str, base_amount: float): assert pairs[contract] is True, "RSWP Market does not exist!" if base_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface), "Invalid token interface!" base_reserve, token_reserve = reserves[contract] k = base_reserve * token_reserve new_base_reserve = base_reserve + base_amount new_token_reserve = k / new_base_reserve tokens_purchased = token_reserve - new_token_reserve fee = tokens_purchased * v1_state["FEE_PERCENTAGE"] tokens_purchased -= fee new_token_reserve += fee assert tokens_purchased > 0, "Token reserve error!" reserves[contract] = [new_base_reserve, new_token_reserve] prices[contract] = new_base_reserve / new_token_reserve return tokens_purchased def internal_sell(contract: str, token_amount: float): assert pairs[contract] is True, "RSWP Market does not exist!" if token_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface), "Invalid token interface!" base_reserve, token_reserve = reserves[contract] k = base_reserve * token_reserve new_token_reserve = token_reserve + token_amount new_base_reserve = k / new_token_reserve base_purchased = base_reserve - new_base_reserve fee = base_purchased * v1_state["FEE_PERCENTAGE"] base_purchased -= fee new_base_reserve += fee assert base_purchased > 0, "Token reserve error!" reserves[contract] = [new_base_reserve, new_token_reserve] prices[contract] = new_base_reserve / new_token_reserve return base_purchased
constructor_args {"base_contract":"currency"}
name con_dex_v2_3

State Changes

Contract con_dex_v2_3
Variable base
New Value currency
 
Contract con_dex_v2_3
Variable state
Key OWNER
New Value 42a13c664781a24ab4aca978abb685d9c07ef9ae64a2af865a043e3186a66907
 
Contract con_dex_v2_3
Variable __code__
New Value I = importlib __v1_state = ForeignHash(foreign_contract='con_rocketswap_official_v1_1', foreign_name='state', contract='con_dex_v2_3', name='v1_state') __v1_discount = ForeignHash(foreign_contract='con_rocketswap_official_v1_1', foreign_name='discount', contract='con_dex_v2_3', name='v1_discount') token_interface = [I.Func('transfer', args=('amount', 'to')), I.Func( 'approve', args=('amount', 'to')), I.Func('transfer_from', args=( 'amount', 'to', 'main_account'))] __base = Variable(contract='con_dex_v2_3', name='base') __pairs = Hash(contract='con_dex_v2_3', name='pairs') __prices = Hash(contract='con_dex_v2_3', name='prices') __lp_points = Hash(contract='con_dex_v2_3', name='lp_points') __reserves = Hash(default_value=[0, 0], contract='con_dex_v2_3', name= 'reserves') __state = Hash(contract='con_dex_v2_3', name='state') def ____(base_contract: str): __base.set(base_contract) __state['OWNER'] = ctx.caller @__export('con_dex_v2_3') def create_market(contract: str, base_amount: float, token_amount: float): assert contract != __base.get( ), 'Cannot create a market for the base token!' assert __pairs[contract] is None, 'Market already exists!' assert contract != __v1_state['TOKEN_CONTRACT' ], 'Only operator can create this market!' assert base_amount > 0 and token_amount > 0, 'Must provide base amount and token amount!' base_token = I.import_module(__base.get()) token = I.import_module(contract) assert I.enforce_interface(base_token, token_interface ), 'Invalid token interface!' assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' real_base_amount = __balance_difference(base_token, contract=__base.get (), amount=base_amount) real_token_amount = __balance_difference(token, contract=contract, amount=token_amount) __prices[contract] = real_base_amount / real_token_amount __pairs[contract] = True __lp_points[contract, ctx.caller] = 100 __lp_points[contract] = 100 __reserves[contract] = [real_base_amount, real_token_amount] return True @__export('con_dex_v2_3') def liquidity_balance_of(contract: str, account: str): return __lp_points[contract, account] @__export('con_dex_v2_3') def add_liquidity(contract: str, base_amount: float): assert __pairs[contract] is True, 'Market does not exist!' assert base_amount > 0, 'Must provide base amount!' base_token = I.import_module(__base.get()) token = I.import_module(contract) assert I.enforce_interface(base_token, token_interface ), 'Invalid token interface!' assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' token_amount = base_amount / __prices[contract] real_base_amount = __balance_difference(base_token, contract=__base.get (), amount=base_amount) real_token_amount = __balance_difference(token, contract=contract, amount=token_amount) total_lp_points = __lp_points[contract] base_reserve, token_reserve = __reserves[contract] points_per_base = total_lp_points / base_reserve lp_to_mint = points_per_base * real_base_amount __lp_points[contract, ctx.caller] += lp_to_mint __lp_points[contract] += lp_to_mint __reserves[contract] = [base_reserve + real_base_amount, token_reserve + real_token_amount] return lp_to_mint @__export('con_dex_v2_3') def remove_liquidity(contract: str, amount: float): assert __pairs[contract] is True, 'Market does not exist!' assert amount > 0, 'Must be a positive LP point amount!' assert __lp_points[contract, ctx.caller ] >= amount, 'Not enough LP points to remove!' base_token = I.import_module(__base.get()) token = I.import_module(contract) assert I.enforce_interface(base_token, token_interface ), 'Invalid token interface!' assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' lp_percentage = amount / __lp_points[contract] base_reserve, token_reserve = __reserves[contract] base_amount = base_reserve * lp_percentage token_amount = token_reserve * lp_percentage base_token.transfer(to=ctx.caller, amount=base_amount) token.transfer(to=ctx.caller, amount=token_amount) __lp_points[contract, ctx.caller] -= amount __lp_points[contract] -= amount assert __lp_points[contract] > 1, 'Not enough remaining liquidity!' new_base_reserve = base_reserve - base_amount new_token_reserve = token_reserve - token_amount assert new_base_reserve > 0 and new_token_reserve > 0, 'Not enough remaining liquidity!' __reserves[contract] = [new_base_reserve, new_token_reserve] return base_amount, token_amount @__export('con_dex_v2_3') def transfer_liquidity(contract: str, to: str, amount: float): assert amount > 0, 'Must be a positive LP point amount!' assert __lp_points[contract, ctx.caller ] >= amount, 'Not enough LP points to transfer!' __lp_points[contract, ctx.caller] -= amount __lp_points[contract, to] += amount @__export('con_dex_v2_3') def approve_liquidity(contract: str, to: str, amount: float): assert amount > 0, 'Cannot send negative balances!' __lp_points[contract, ctx.caller, to] += amount @__export('con_dex_v2_3') def transfer_liquidity_from(contract: str, to: str, main_account: str, amount: float): assert amount > 0, 'Cannot send negative balances!' assert __lp_points[contract, main_account, ctx.caller ] >= amount, 'Not enough coins approved to send! You have {} and are trying to spend {}'.format( __lp_points[main_account, ctx.caller], amount) assert __lp_points[contract, main_account ] >= amount, 'Not enough coins to send!' __lp_points[contract, main_account, ctx.caller] -= amount __lp_points[contract, main_account] -= amount __lp_points[contract, to] += amount @__export('con_dex_v2_3') def buy(contract: str, base_amount: float, minimum_received: float, token_fees: bool=False): assert __pairs[contract] is True, 'Market does not exist!' assert base_amount > 0, 'Must provide base amount!' base_token = I.import_module(__base.get()) token = I.import_module(contract) amm_token = I.import_module(__v1_state['TOKEN_CONTRACT']) assert I.enforce_interface(base_token, token_interface ), 'Invalid token interface!' assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' if contract == __v1_state['TOKEN_CONTRACT']: real_base_amount = __balance_difference(base_token, contract=__base .get(), amount=base_amount) tokens_purchased = __internal_buy(contract=__v1_state[ 'TOKEN_CONTRACT'], base_amount=real_base_amount) token.transfer(amount=tokens_purchased, to=ctx.caller) return tokens_purchased real_base_amount = __balance_difference(base_token, contract=__base.get (), amount=base_amount) base_reserve, token_reserve = __reserves[contract] k = base_reserve * token_reserve new_base_reserve = base_reserve + real_base_amount new_token_reserve = k / new_base_reserve tokens_purchased = token_reserve - new_token_reserve fee_percent = __v1_state['FEE_PERCENTAGE'] * __v1_discount[ctx.caller] fee = tokens_purchased * fee_percent if token_fees is True: fee = fee * __v1_state['TOKEN_DISCOUNT'] rswp_k = base_reserve * token_reserve rswp_new_token_reserve = token_reserve + fee rswp_new_base_reserve = rswp_k / rswp_new_token_reserve rswp_base_purchased = base_reserve - rswp_new_base_reserve rswp_base_purchased += rswp_base_purchased * fee_percent rswp_base_reserve_2, rswp_token_reserve_2 = __reserves[__v1_state[ 'TOKEN_CONTRACT']] rswp_k_2 = rswp_base_reserve_2 * rswp_token_reserve_2 rswp_new_base_reserve_2 = rswp_base_reserve_2 + rswp_base_purchased rswp_new_base_reserve_2 += rswp_base_purchased * fee_percent rswp_new_token_reserve_2 = rswp_k_2 / rswp_new_base_reserve_2 sell_amount = rswp_token_reserve_2 - rswp_new_token_reserve_2 sell_amount_with_fee = sell_amount * __v1_state['BURN_PERCENTAGE'] amm_token.transfer_from(amount=sell_amount, to=ctx.this, main_account=ctx.caller) base_received = __internal_sell(contract=__v1_state[ 'TOKEN_CONTRACT'], token_amount=sell_amount_with_fee) amm_token.transfer(amount=sell_amount - sell_amount_with_fee, to= __v1_state['BURN_ADDRESS']) token_received = __internal_buy(contract=contract, base_amount= base_received) new_base_reserve += __reserves[contract][0] - base_reserve new_token_reserve += __reserves[contract][1] - token_reserve new_token_reserve = new_token_reserve + token_received else: tokens_purchased = tokens_purchased - fee burn_amount = __internal_buy(contract=__v1_state['TOKEN_CONTRACT'], base_amount=__internal_sell(contract=contract, token_amount=fee - fee * __v1_state['BURN_PERCENTAGE'])) new_base_reserve += __reserves[contract][0] - base_reserve new_token_reserve += __reserves[contract][1] - token_reserve new_token_reserve = new_token_reserve + fee * __v1_state[ 'BURN_PERCENTAGE'] amm_token.transfer(amount=burn_amount, to=__v1_state['BURN_ADDRESS']) if minimum_received != None: assert tokens_purchased >= minimum_received, 'Only {} tokens can be purchased, which is less than your minimum, which is {} tokens.'.format( tokens_purchased, minimum_received) assert tokens_purchased > 0, 'Token reserve error!' token.transfer(amount=tokens_purchased, to=ctx.caller) __reserves[contract] = [new_base_reserve, new_token_reserve] __prices[contract] = new_base_reserve / new_token_reserve return tokens_purchased @__export('con_dex_v2_3') def sell(contract: str, token_amount: float, minimum_received: float, token_fees: bool=False): assert __pairs[contract] is True, 'Market does not exist!' assert token_amount > 0, 'Must provide base amount and token amount!' base_token = I.import_module(__base.get()) token = I.import_module(contract) amm_token = I.import_module(__v1_state['TOKEN_CONTRACT']) assert I.enforce_interface(base_token, token_interface ), 'Invalid token interface!' assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' if contract == __v1_state['TOKEN_CONTRACT']: real_token_amount = __balance_difference(token, contract=contract, amount=token_amount) base_purchased = __internal_sell(contract=__v1_state[ 'TOKEN_CONTRACT'], token_amount=real_token_amount) base_token.transfer(amount=base_purchased, to=ctx.caller) return base_purchased real_token_amount = __balance_difference(token, contract=contract, amount=token_amount) base_reserve, token_reserve = __reserves[contract] k = base_reserve * token_reserve new_token_reserve = token_reserve + real_token_amount new_base_reserve = k / new_token_reserve base_purchased = base_reserve - new_base_reserve fee_percent = __v1_state['FEE_PERCENTAGE'] * __v1_discount[ctx.caller] fee = base_purchased * fee_percent if token_fees is True: fee = fee * __v1_state['TOKEN_DISCOUNT'] rswp_base_reserve, rswp_token_reserve = __reserves[__v1_state[ 'TOKEN_CONTRACT']] rswp_k = rswp_base_reserve * rswp_token_reserve rswp_new_base_reserve = rswp_base_reserve + fee rswp_new_base_reserve += fee * fee_percent rswp_new_token_reserve = rswp_k / rswp_new_base_reserve sell_amount = rswp_token_reserve - rswp_new_token_reserve sell_amount_with_fee = sell_amount * __v1_state['BURN_PERCENTAGE'] amm_token.transfer_from(amount=sell_amount, to=ctx.this, main_account=ctx.caller) base_received = __internal_sell(contract=__v1_state[ 'TOKEN_CONTRACT'], token_amount=sell_amount_with_fee) amm_token.transfer(amount=sell_amount - sell_amount_with_fee, to= __v1_state['BURN_ADDRESS']) new_base_reserve = new_base_reserve + base_received else: base_purchased = base_purchased - fee burn_amount = fee - fee * __v1_state['BURN_PERCENTAGE'] new_base_reserve = new_base_reserve + fee * __v1_state[ 'BURN_PERCENTAGE'] token_received = __internal_buy(contract=__v1_state[ 'TOKEN_CONTRACT'], base_amount=burn_amount) amm_token.transfer(amount=token_received, to=__v1_state['BURN_ADDRESS'] ) if minimum_received != None: assert base_purchased >= minimum_received, 'Only {} TAU can be purchased, which is less than your minimum, which is {} TAU.'.format( base_purchased, minimum_received) assert base_purchased > 0, 'Token reserve error!' base_token.transfer(amount=base_purchased, to=ctx.caller) __reserves[contract] = [new_base_reserve, new_token_reserve] __prices[contract] = new_base_reserve / new_token_reserve return base_purchased @__export('con_dex_v2_3') def create_rswp_market(base_amount: float, token_amount: float): assert ctx.caller == __state['OWNER'], 'Only owner can call this method!' assert __pairs[__v1_state['TOKEN_CONTRACT'] ] is None, 'Market already exists!' assert base_amount > 0 and token_amount > 0, 'Must provide base amount and token amount!' base_token = I.import_module(__base.get()) amm_token = I.import_module(__v1_state['TOKEN_CONTRACT']) assert I.enforce_interface(base_token, token_interface ), 'Invalid token interface!' base_token.transfer_from(amount=base_amount, to=ctx.this, main_account= ctx.caller) amm_token.transfer_from(amount=token_amount, to=ctx.this, main_account= ctx.caller) __prices[__v1_state['TOKEN_CONTRACT']] = base_amount / token_amount __pairs[__v1_state['TOKEN_CONTRACT']] = True __lp_points[__v1_state['TOKEN_CONTRACT'], ctx.caller] = 100 __lp_points[__v1_state['TOKEN_CONTRACT']] = 100 __reserves[__v1_state['TOKEN_CONTRACT']] = [base_amount, token_amount] return True @__export('con_dex_v2_3') def sync_reserves(contract: str): assert __v1_state['SYNC_ENABLED'] is True, 'Sync is not enabled!' __token_balance = ForeignHash(foreign_contract=contract, foreign_name= 'balances', contract='con_dex_v2_3', name='token_balance') new_balance = __token_balance[ctx.this] assert new_balance > 0, 'Cannot be a negative balance!' __reserves[contract][1] = new_balance return new_balance def __balance_difference(token, contract: str, amount: float): __token_balance = ForeignHash(foreign_contract=contract, foreign_name= 'balances', contract='con_dex_v2_3', name='token_balance') v2_balance_1 = __token_balance[ctx.this] token.transfer_from(amount=amount, to=ctx.this, main_account=ctx.caller) v2_balance_2 = __token_balance[ctx.this] real_amount = v2_balance_2 - v2_balance_1 return real_amount def __internal_buy(contract: str, base_amount: float): assert __pairs[contract] is True, 'RSWP Market does not exist!' if base_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' base_reserve, token_reserve = __reserves[contract] k = base_reserve * token_reserve new_base_reserve = base_reserve + base_amount new_token_reserve = k / new_base_reserve tokens_purchased = token_reserve - new_token_reserve fee = tokens_purchased * __v1_state['FEE_PERCENTAGE'] tokens_purchased -= fee new_token_reserve += fee assert tokens_purchased > 0, 'Token reserve error!' __reserves[contract] = [new_base_reserve, new_token_reserve] __prices[contract] = new_base_reserve / new_token_reserve return tokens_purchased def __internal_sell(contract: str, token_amount: float): assert __pairs[contract] is True, 'RSWP Market does not exist!' if token_amount <= 0: return 0 token = I.import_module(contract) assert I.enforce_interface(token, token_interface ), 'Invalid token interface!' base_reserve, token_reserve = __reserves[contract] k = base_reserve * token_reserve new_token_reserve = token_reserve + token_amount new_base_reserve = k / new_token_reserve base_purchased = base_reserve - new_base_reserve fee = base_purchased * __v1_state['FEE_PERCENTAGE'] base_purchased -= fee new_base_reserve += fee assert base_purchased > 0, 'Token reserve error!' __reserves[contract] = [new_base_reserve, new_token_reserve] __prices[contract] = new_base_reserve / new_token_reserve return base_purchased
 
Contract con_dex_v2_3
Variable __compiled__
New Value 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Contract con_dex_v2_3
Variable __owner__
New Value null
 
Contract con_dex_v2_3
Variable __submitted__
New Value 2023,3,23,22,6,21,0
 
Contract con_dex_v2_3
Variable __developer__
New Value 42a13c664781a24ab4aca978abb685d9c07ef9ae64a2af865a043e3186a66907
 
Contract currency
Variable balances
Key 42a13c664781a24ab4aca978abb685d9c07ef9ae64a2af865a043e3186a66907
New Value 176.388199382269703377339788772099