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tick-stock-panel/backend/app/api/signals.py
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125 lines
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Python

"""自定义信号 API 路由 — HTTP 请求 → 调用 custom_signals 模块 → 返回响应。
只做胶水:校验 → 持久化 → 失效缓存。不含表达式编译逻辑。
"""
from __future__ import annotations
from pathlib import Path
from fastapi import APIRouter, HTTPException, Request
from pydantic import BaseModel
from app.strategy import custom_signals
router = APIRouter(prefix="/api/custom-signals", tags=["custom-signals"])
def _data_dir(request: Request) -> Path:
return request.app.state.repo.store.data_dir
def _invalidate() -> None:
"""失效 pipeline 的自定义信号缓存,下次计算重新加载。"""
from app.indicators.pipeline import invalidate_custom_signals
invalidate_custom_signals()
class ConditionModel(BaseModel):
left: str # 字段名(须在白名单)
op: str # > >= < <= == !=
right: str # "field:xxx" 或数字字符串
leftDays: int = 0 # 左字段取几日前 (0=当日, 默认)
rightDays: int = 0 # 右字段取几日前 (仅 right 为字段时有意义)
class SignalModel(BaseModel):
id: str
name: str
kind: str # entry | exit | both
conditions: list[ConditionModel]
enabled: bool = True
# ── 字段选项 / 运算符 ───────────────────────────────────
@router.get("/options")
def get_options():
"""返回可选字段与运算符,供前端下拉框使用。"""
# 字段带中文标签(取自 ENRICHED_COLUMNS,回退为字段名本身)
from app.indicators.pipeline import ENRICHED_COLUMNS, ENRICHED_COLUMNS_BY_CATEGORY
allowed = custom_signals.ALLOWED_FIELDS
fields = [
{"key": f, "label": ENRICHED_COLUMNS.get(f, f)}
for f in sorted(allowed)
]
# 字段分组 (只包含白名单内的字段, 供前端 optoptgroup 渲染)
_GROUP_LABELS = {
"basic": "基础", "ma": "均线 MA", "ema": "指数均线 EMA",
"macd": "MACD", "boll": "布林带 BOLL", "kdj": "KDJ",
"atr": "ATR", "volume": "量价", "extremes": "极值",
"momentum": "动量", "volatility": "波动率", "rsi": "RSI",
}
# 行情类字段不在 ENRICHED_COLUMNS_BY_CATEGORY 里, 单独归一组
quote_fields = {"open", "high", "low", "close", "volume", "amount",
"turnover_rate", "consecutive_limit_ups", "consecutive_limit_downs"}
groups = [{"key": "quote", "label": "行情",
"fields": [{"key": f, "label": ENRICHED_COLUMNS.get(f, f)}
for f in sorted(allowed & quote_fields)]}]
for cat, label in _GROUP_LABELS.items():
cat_fields = [f for f in ENRICHED_COLUMNS_BY_CATEGORY.get(cat, []) if f in allowed]
if cat_fields:
groups.append({"key": cat, "label": label,
"fields": [{"key": f, "label": ENRICHED_COLUMNS.get(f, f)} for f in cat_fields]})
return {
"fields": fields,
"groups": groups,
"maxDays": custom_signals.MAX_DAYS,
"operators": [">", ">=", "<", "<=", "==", "!="],
"kinds": [
{"key": "entry", "label": "入场"},
{"key": "exit", "label": "出场"},
{"key": "both", "label": "出入通用"},
],
}
# ── 列表 ───────────────────────────────────────────────
@router.get("")
def list_signals(request: Request):
sigs = custom_signals.load_all(_data_dir(request))
return {"signals": sigs}
# ── 新建 / 更新 ────────────────────────────────────────
@router.post("")
def save_signal(req: SignalModel, request: Request):
sig = req.model_dump()
try:
custom_signals.validate(sig)
except ValueError as e:
raise HTTPException(status_code=400, detail=str(e))
custom_signals.save_one(_data_dir(request), sig)
_invalidate()
return {"ok": True, "signal": sig}
# ── 删除 ───────────────────────────────────────────────
@router.delete("/{signal_id}")
def delete_signal(signal_id: str, request: Request):
if not custom_signals.ID_RE.match(signal_id):
raise HTTPException(status_code=400, detail="信号 id 非法")
deleted = custom_signals.delete_one(_data_dir(request), signal_id)
if not deleted:
raise HTTPException(status_code=404, detail="信号不存在")
_invalidate()
return {"ok": True}