minor internal changes ahead of company tab release

src/app_utils.py

@@ -1,5 +1,5 @@
 import pandas as pd
-from typing import Sequence, Any
+from typing import Tuple
 
 import re
 
@@ -66,4 +66,31 @@ def styler_negative_red(df: pd.DataFrame, cols: list[str] | None = None):
             pass
         return ""
 
-    return df.style.applymap(_style, subset=cols)
+    return df.style.applymap(_style, subset=cols)
+
+def get_company_info(
+    maestro: pd.DataFrame,
+    ticker: str,
+    rename_columns: dict
+) -> Tuple[str, str, pd.DataFrame]:
+    """
+    Returns the company name, longBusinessSummary, and a DataFrame
+    of all other fields for the given ticker.
+    """
+    company = maestro[maestro["ticker"] == ticker]
+    if company.empty:
+        return ticker, "No data available.", pd.DataFrame()
+
+    # extract name & summary
+    name = company["security"].iloc[0] if "security" in company.columns else ticker
+    summary = company["longBusinessSummary"].iloc[0] if "longBusinessSummary" in company.columns else ""
+
+    # build details table
+    details = company.drop(columns=["longBusinessSummary"], errors="ignore").iloc[0]
+    df = pd.DataFrame({
+        "Field": details.index.tolist(),
+        "Value": details.values.tolist()
+    })
+    df["Field"] = df["Field"].map(lambda c: rename_columns.get(c, c))
+
+    return name, summary, df