133 lines
4.9 KiB
Python
133 lines
4.9 KiB
Python
# # ⚠ Warning
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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# LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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# NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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# [🥭 Mango Markets](https://mango.markets/) support is available at:
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# [Docs](https://docs.mango.markets/)
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# [Discord](https://discord.gg/67jySBhxrg)
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# [Twitter](https://twitter.com/mangomarkets)
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# [Github](https://github.com/blockworks-foundation)
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# [Email](mailto:hello@blockworks.foundation)
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import abc
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import logging
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import typing
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from decimal import Decimal
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from solana.publickey import PublicKey
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from .constants import SYSTEM_PROGRAM_ADDRESS
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from .market import Market, DryRunMarket
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from .orders import Order
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# # 🥭 MarketOperations
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#
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# This file deals with placing orders. We want the interface to be simple and basic:
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# ```
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# market_operations.cancel_order(old_order)
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# market_operations.place_order(new_order)
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# ```
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# This requires the `MarketOperations` already know a bit about the market it is placing the
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# order on, and the code in the `MarketOperations` be specialised for that market platform.
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#
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# # 🥭 MarketOperations class
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#
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# This abstracts the process of placing orders, providing a base class for specialised operations.
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#
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# It's abstracted because we may want to have different approaches to placing these
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# orders - do we want to run them against the Serum orderbook? Do we want to run them against
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# Mango groups?
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#
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# Whichever choice is made, the calling code shouldn't have to care. It should be able to
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# use its `MarketOperations` class as simply as:
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# ```
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# market_operations.place_order(order)
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# ```
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#
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class MarketOperations(metaclass=abc.ABCMeta):
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def __init__(self, market: Market):
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self.logger: logging.Logger = logging.getLogger(self.__class__.__name__)
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self.market: Market = market
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@abc.abstractmethod
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def cancel_order(self, order: Order, ok_if_missing: bool = False) -> typing.Sequence[str]:
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raise NotImplementedError("MarketOperations.cancel_order() is not implemented on the base type.")
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@abc.abstractmethod
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def place_order(self, order: Order) -> Order:
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raise NotImplementedError("MarketOperations.place_order() is not implemented on the base type.")
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@abc.abstractmethod
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def load_orders(self) -> typing.Sequence[Order]:
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raise NotImplementedError("MarketOperations.load_orders() is not implemented on the base type.")
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@abc.abstractmethod
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def load_my_orders(self) -> typing.Sequence[Order]:
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raise NotImplementedError("MarketOperations.load_my_orders() is not implemented on the base type.")
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@abc.abstractmethod
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def settle(self) -> typing.Sequence[str]:
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raise NotImplementedError("MarketOperations.settle() is not implemented on the base type.")
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@abc.abstractmethod
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def crank(self, limit: Decimal = Decimal(32)) -> typing.Sequence[str]:
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raise NotImplementedError("MarketOperations.crank() is not implemented on the base type.")
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@abc.abstractmethod
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def create_openorders(self) -> PublicKey:
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raise NotImplementedError("MarketOperations.create_openorders() is not implemented on the base type.")
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@abc.abstractmethod
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def ensure_openorders(self) -> PublicKey:
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raise NotImplementedError("MarketOperations.ensure_openorders() is not implemented on the base type.")
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def __repr__(self) -> str:
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return f"{self}"
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# # 🥭 DryRunMarketOperations class
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#
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# A null, no-op, dry-run trade executor that can be plugged in anywhere a `MarketOperations`
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# is expected, but which will not actually trade.
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#
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class DryRunMarketOperations(MarketOperations):
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def __init__(self, market_name: str):
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super().__init__(DryRunMarket(market_name))
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self.market_name: str = market_name
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def cancel_order(self, order: Order, ok_if_missing: bool = False) -> typing.Sequence[str]:
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self.logger.info(f"[Dry Run] Not cancelling order {order}.")
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return [""]
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def place_order(self, order: Order) -> Order:
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self.logger.info(f"[Dry Run] Not placing order {order}.")
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return order
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def load_orders(self) -> typing.Sequence[Order]:
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return []
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def load_my_orders(self) -> typing.Sequence[Order]:
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return []
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def settle(self) -> typing.Sequence[str]:
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return []
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def crank(self, limit: Decimal = Decimal(32)) -> typing.Sequence[str]:
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return []
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def create_openorders(self) -> PublicKey:
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return SYSTEM_PROGRAM_ADDRESS
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def ensure_openorders(self) -> PublicKey:
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return SYSTEM_PROGRAM_ADDRESS
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def __str__(self) -> str:
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return f"""« 𝙳𝚛𝚢𝚁𝚞𝚗𝙼𝚊𝚛𝚔𝚎𝚝𝙾𝚙𝚎𝚛𝚊𝚝𝚒𝚘𝚗𝚜 [{self.market_name}] »"""
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