dekun
87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
"""运行时交易所配置：DB 覆盖 env，切换时套用合约默认。"""
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from __future__ import annotations
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from ..config import EXCHANGE_MARKET_DEFAULTS, Settings, get_settings
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def normalize_exchange_name(name: str | None) -> str:
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n = (name or "okx").strip().lower()
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if n in ("bn", "binance"):
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return "binance"
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return "okx"
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def load_runtime_settings() -> Settings:
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"""启动 / 切换后使用的有效 Settings（含 DB 覆盖）。"""
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base = get_settings()
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try:
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from ..models.db import get_db
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db = get_db()
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except Exception:
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return base
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ex = normalize_exchange_name(db.get_setting("exchange", base.exchange))
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defs = EXCHANGE_MARKET_DEFAULTS[ex]
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ct_default = float(defs["option_ct_mult_default"])
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raw_ct = db.get_setting("option_ct_mult_default")
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if raw_ct not in (None, ""):
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try:
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ct_default = float(raw_ct)
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except ValueError:
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pass
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return base.model_copy(
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update={
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"exchange": ex,
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"perp_inst_id": str(
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db.get_setting("perp_inst_id") or defs["perp_inst_id"]
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),
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"option_inst_family": str(
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db.get_setting("option_inst_family") or defs["option_inst_family"]
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),
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"index_inst_id": str(
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db.get_setting("index_inst_id") or defs["index_inst_id"]
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),
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"option_ct_mult_default": ct_default,
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}
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)
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def persist_exchange_choice(name: str) -> Settings:
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"""写入 exchange + 该所合约默认，返回 runtime settings。"""
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from ..models.db import get_db
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ex = normalize_exchange_name(name)
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defs = EXCHANGE_MARKET_DEFAULTS[ex]
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db = get_db()
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db.set_setting("exchange", ex)
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db.set_setting("perp_inst_id", str(defs["perp_inst_id"]))
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db.set_setting("option_inst_family", str(defs["option_inst_family"]))
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db.set_setting("index_inst_id", str(defs["index_inst_id"]))
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db.set_setting("option_ct_mult_default", str(defs["option_ct_mult_default"]))
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return load_runtime_settings()
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async def reload_market_session(settings: Settings | None = None):
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"""停旧会话、按 settings 重建交易所与策略会话并 start。"""
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from .factory import set_exchange
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from ..strategy.session import bootstrap_session, get_session, set_session
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s = settings or load_runtime_settings()
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old = None
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try:
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old = get_session()
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except Exception:
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old = None
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if old is not None:
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try:
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await old.stop()
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except Exception:
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pass
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set_session(None)
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set_exchange(None)
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sess = bootstrap_session(s)
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await sess.start()
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return sess
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