first commit

app/engine/strategies/conditional.py

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+from __future__ import annotations
+
+from app.engine.strategies.base import BaseStrategy, Signal
+
+
+class ConditionalStrategy(BaseStrategy):
+    """조건부 지정가/시장가 전략"""
+
+    def evaluate(self, current_price: dict, price_history: list[dict], holding_qty: int) -> Signal:
+        price = current_price.get("current_price", 0)
+        if price <= 0:
+            return Signal(action="hold", stock_code=self.stock_code)
+
+        buy_price = self.params.get("buy_price", 0)
+        sell_price = self.params.get("sell_price", 0)
+        change_rate_limit = self.params.get("change_rate_limit", 0)
+        qty = self.params.get("qty", 1)
+
+        if change_rate_limit:
+            change_rate = current_price.get("change_rate", 0)
+            if change_rate <= -change_rate_limit and price > 0:
+                return Signal(
+                    action="buy",
+                    stock_code=self.stock_code,
+                    qty=qty,
+                    price=price,
+                    reason=f"하락률 조건 충족: {change_rate:.2f}% <= -{change_rate_limit}%",
+                    confidence=min(abs(change_rate) / change_rate_limit, 1.0),
+                )
+            if change_rate >= change_rate_limit and holding_qty > 0:
+                return Signal(
+                    action="sell",
+                    stock_code=self.stock_code,
+                    qty=min(qty, holding_qty),
+                    price=price,
+                    reason=f"상승률 조건 충족: {change_rate:.2f}% >= {change_rate_limit}%",
+                    confidence=min(abs(change_rate) / change_rate_limit, 1.0),
+                )
+
+        if buy_price and price <= buy_price and holding_qty == 0:
+            return Signal(
+                action="buy",
+                stock_code=self.stock_code,
+                qty=qty,
+                price=price,
+                reason=f"매수 조건 충족: 현재가 {price} <= 목표가 {buy_price}",
+                confidence=1.0,
+            )
+
+        if sell_price and price >= sell_price and holding_qty > 0:
+            return Signal(
+                action="sell",
+                stock_code=self.stock_code,
+                qty=min(qty, holding_qty),
+                price=price,
+                reason=f"매도 조건 충족: 현재가 {price} >= 목표가 {sell_price}",
+                confidence=1.0,
+            )
+
+        return Signal(action="hold", stock_code=self.stock_code)