import os
import requests
import pandas as pd
from io import BytesIO

def read_excel_sales(file_url: str) -> str:
    try:
        headers = {"Authorization": f"Bearer {os.getenv('HF_TOKEN')}"}
        response = requests.get(file_url, headers=headers, timeout=10)
        response.raise_for_status()
        df = pd.read_excel(BytesIO(response.content), engine='openpyxl')
        # 查找销售额列
        sales_col = None
        for col in df.columns:
            if 'sales' in str(col).lower() or 'total' in str(col).lower() or 'price' in str(col).lower():
                sales_col = col
                break
        if sales_col is None:
            numeric_cols = df.select_dtypes(include='number').columns
            if len(numeric_cols) > 0:
                total = df[numeric_cols].sum().sum()
            else:
                return "0.00"
        else:
            total = df[sales_col].sum()
        return f"{total:.2f}"
    except Exception as e:
        return f"Error: {str(e)}"