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# # ⚠ 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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2021-07-23 02:20:44 -07:00
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import itertools
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import typing
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2021-07-23 02:20:44 -07:00
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from pyserum.market import Market as PySerumMarket
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from pyserum.market.orderbook import OrderBook as SerumOrderBook
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from pyserum.market.types import Order as SerumOrder
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from solana.publickey import PublicKey
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2021-07-23 02:20:44 -07:00
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from .accountinfo import AccountInfo
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from .context import Context
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2021-07-14 06:03:51 -07:00
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from .market import AddressableMarket, InventorySource
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from .serumeventqueue import SerumEvent, SerumEventQueue
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2021-06-25 03:10:41 -07:00
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from .token import Token
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# # 🥭 SpotMarket class
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#
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# This class encapsulates our knowledge of a Serum spot market.
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#
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2021-07-13 12:01:32 -07:00
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class SpotMarket(AddressableMarket):
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2021-06-30 06:08:37 -07:00
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def __init__(self, base: Token, quote: Token, address: PublicKey, group_address: PublicKey):
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super().__init__(InventorySource.ACCOUNT, base, quote, address)
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self.group_address: PublicKey = group_address
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self.underlying_serum_market: typing.Optional[PySerumMarket] = None
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self.loaded: bool = False
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def load(self, context: Context) -> None:
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self.underlying_serum_market = PySerumMarket.load(context.client, self.address, context.dex_program_id)
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self.loaded = True
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def ensure_loaded(self, context: Context) -> None:
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if not self.loaded:
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self.load(context)
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def unprocessed_events(self, context: Context) -> typing.Sequence[SerumEvent]:
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if self.underlying_serum_market is None:
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raise Exception(f"SpotMarket {self.symbol} has not been loaded.")
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event_queue: SerumEventQueue = SerumEventQueue.load(context, self.underlying_serum_market.state.event_queue())
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return event_queue.unprocessed_events()
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def orders(self, context: Context) -> typing.Sequence[SerumOrder]:
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if self.underlying_serum_market is None:
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raise Exception(f"SpotMarket {self.symbol} has not been loaded.")
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raw_market = self.underlying_serum_market
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[bids_info, asks_info] = AccountInfo.load_multiple(
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context, [raw_market.state.bids(), raw_market.state.asks()])
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bids_orderbook = SerumOrderBook.from_bytes(raw_market.state, bids_info.data)
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asks_orderbook = SerumOrderBook.from_bytes(raw_market.state, asks_info.data)
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return list(itertools.chain(bids_orderbook.orders(), asks_orderbook.orders()))
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def __str__(self) -> str:
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return f"« 𝚂𝚙𝚘𝚝𝙼𝚊𝚛𝚔𝚎𝚝 {self.symbol} [{self.address}] »"
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