refactor trade date parsing and prevent auto-update rerun

app/ui/streamlit_app.py

@@ -41,7 +41,9 @@ def main() -> None:
     initialize_database()
 
     cfg = get_config()
-    if cfg.auto_update_data:
+    # 仅在首次运行时执行自动数据更新，避免 Streamlit 每次重跑都触发该逻辑
+    AUTO_UPDATE_FLAG = "auto_update_has_run"
+    if cfg.auto_update_data and not st.session_state.get(AUTO_UPDATE_FLAG):
         LOGGER.info("检测到自动更新数据选项已启用，开始执行数据拉取", extra=LOG_EXTRA)
         try:
             with st.spinner("正在自动更新数据..."):
@@ -66,6 +68,8 @@ def main() -> None:
         except Exception as exc:  # noqa: BLE001
             LOGGER.exception("自动数据更新失败", extra=LOG_EXTRA)
             st.error(f"❌ 自动数据更新失败：{exc}")
+        finally:
+            st.session_state[AUTO_UPDATE_FLAG] = True
 
     render_global_dashboard()
 

app/ui/views/today.py

@@ -27,6 +27,21 @@ from app.ui.shared import (
 )
 
 
+def _parse_trade_date(trade_date: str | int | date) -> date:
+    """Parse trade date inputs that may come in multiple string formats."""
+    if isinstance(trade_date, date):
+        return trade_date
+    value = str(trade_date)
+    try:
+        return date.fromisoformat(value)
+    except ValueError:
+        pass
+    try:
+        return datetime.strptime(value, "%Y%m%d").date()
+    except ValueError as exc:
+        raise ValueError(f"无法解析交易日：{trade_date}") from exc
+
+
 def _fetch_agent_actions(trade_date: str, symbols: List[str]) -> Dict[str, Dict[str, Optional[str]]]:
     unique_symbols = list(dict.fromkeys(symbols))
     if not unique_symbols:
@@ -176,7 +191,9 @@ def render_today_plan() -> None:
         default_idx = 0
     # 确保日期格式统一为 YYYYMMDD
     formatted_trade_dates = [str(td) for td in trade_dates]
-    trade_date = st.selectbox("交易日", formatted_trade_dates, index=default_idx)
+    selector_col, actions_col = st.columns([3, 2])
+    with selector_col:
+        trade_date = st.selectbox("交易日", formatted_trade_dates, index=default_idx)
 
     with db_session(read_only=True) as conn:
         code_rows = conn.execute(
@@ -207,6 +224,33 @@ def render_today_plan() -> None:
     else:
         st.caption("所选日期暂无候选池数据，仍可查看代理决策记录。")
 
+    with actions_col:
+        metrics_cols = st.columns(2)
+        metrics_cols[0].metric("标的数量", len(symbols))
+        metrics_cols[1].metric("候选池标的", len(candidate_records))
+        st.caption("一键触发策略重评估（包含当前交易日的所有标的）。")
+        if st.button("一键重评估全部", type="primary", use_container_width=True):
+            with st.spinner("正在对所有标的进行重评估，请稍候..."):
+                try:
+                    trade_date_obj = _parse_trade_date(trade_date)
+                    progress = st.progress(0.0)
+                    progress.progress(0.3 if symbols else 1.0)
+                    changes_all = _reevaluate_symbols(
+                        trade_date_obj,
+                        symbols,
+                        "reeval_ui_all",
+                        "UI All Re-eval",
+                    )
+                    progress.progress(1.0)
+                    st.success(f"一键重评估完成：共处理 {len(symbols)} 个标的")
+                    if changes_all:
+                        st.write("检测到以下动作变更：")
+                        st.dataframe(pd.DataFrame(changes_all), hide_index=True, width='stretch')
+                    st.rerun()
+                except Exception as exc:  # noqa: BLE001
+                    LOGGER.exception("一键重评估失败", extra=LOG_EXTRA)
+                    st.error(f"一键重评估执行过程中发生错误：{exc}")
+
     detail_tab, assistant_tab = st.tabs(["标的详情", "投资助理模式"])
     with assistant_tab:
         _render_today_plan_assistant_view(trade_date, candidate_records)
@@ -306,39 +350,6 @@ def _render_today_plan_symbol_view(
     default_batch = [code for code in symbols if code in candidate_code_set]
     batch_symbols = st.multiselect("批量重评估（可多选）", symbols, default=default_batch[:10])
 
-    if st.button("一键重评估所有标的", type="primary", width='stretch'):
-        with st.spinner("正在对所有标的进行重评估，请稍候..."):
-            try:
-                trade_date_obj: Optional[date] = None
-                try:
-                    trade_date_obj = date.fromisoformat(str(trade_date))
-                except Exception:
-                    try:
-                        trade_date_obj = datetime.strptime(str(trade_date), "%Y%m%d").date()
-                    except Exception:
-                        pass
-                if trade_date_obj is None:
-                    raise ValueError(f"无法解析交易日：{trade_date}")
-
-                progress = st.progress(0.0)
-                progress.progress(0.3 if symbols else 1.0)
-                changes_all = _reevaluate_symbols(
-                    trade_date_obj,
-                    symbols,
-                    "reeval_ui_all",
-                    "UI All Re-eval",
-                )
-                progress.progress(1.0)
-                st.success(f"一键重评估完成：共处理 {len(symbols)} 个标的")
-                if changes_all:
-                    st.write("检测到以下动作变更：")
-                    st.dataframe(pd.DataFrame(changes_all), hide_index=True, width='stretch')
-
-                st.rerun()
-            except Exception as exc:  # noqa: BLE001
-                LOGGER.exception("一键重评估失败", extra=LOG_EXTRA)
-                st.error(f"一键重评估执行过程中发生错误：{exc}")
-
     set_query_params(date=str(trade_date), code=str(ts_code))
 
     with db_session(read_only=True) as conn:
@@ -594,12 +605,9 @@ def _render_today_plan_symbol_view(
     try:
         with db_session(read_only=True) as conn:
             try:
-                trade_date_obj = date.fromisoformat(str(trade_date))
+                trade_date_obj = _parse_trade_date(trade_date)
-            except Exception:
+            except ValueError:
-                try:
+                trade_date_obj = date.today()
-                    trade_date_obj = datetime.strptime(str(trade_date), "%Y%m%d").date()
-                except Exception:
-                    trade_date_obj = date.today() - timedelta(days=7)
 
             news_query = """
                 SELECT id, title, source, pub_time, sentiment, heat, entities
@@ -684,16 +692,7 @@ def _render_today_plan_symbol_view(
     if cols_re[0].button("对该标的重评估", key="reevaluate_current_symbol"):
         with st.spinner("正在重评估..."):
             try:
-                trade_date_obj: Optional[date] = None
+                trade_date_obj = _parse_trade_date(trade_date)
-                try:
-                    trade_date_obj = date.fromisoformat(str(trade_date))
-                except Exception:
-                    try:
-                        trade_date_obj = datetime.strptime(str(trade_date), "%Y%m%d").date()
-                    except Exception:
-                        pass
-                if trade_date_obj is None:
-                    raise ValueError(f"无法解析交易日：{trade_date}")
                 changes = _reevaluate_symbols(
                     trade_date_obj,
                     [ts_code],
@@ -717,16 +716,7 @@ def _render_today_plan_symbol_view(
     if cols_re[1].button("批量重评估（所选）", key="reevaluate_batch", disabled=not batch_symbols):
         with st.spinner("批量重评估执行中..."):
             try:
-                trade_date_obj: Optional[date] = None
+                trade_date_obj = _parse_trade_date(trade_date)
-                try:
-                    trade_date_obj = date.fromisoformat(str(trade_date))
-                except Exception:
-                    try:
-                        trade_date_obj = datetime.strptime(str(trade_date), "%Y%m%d").date()
-                    except Exception:
-                        pass
-                if trade_date_obj is None:
-                    raise ValueError(f"无法解析交易日：{trade_date}")
                 progress = st.progress(0.0)
                 progress.progress(0.3 if batch_symbols else 1.0)
                 changes_all = _reevaluate_symbols(