data/caching.py

import pandas as pd
from flask_caching import Cache

# Dummy function to simulate loading data from an Excel file
def load_excel_data(file_path):
    # In a real application, you would use pd.read_excel(file_path)
    # For now, we'll return a dummy dataframe
    print(f"Loading data from {file_path}...")
    return pd.DataFrame({
        'Column1': [1, 2, 3, 4],
        'Column2': [10, 20, 30, 40],
        'Column3': ['A', 'B', 'C', 'D']
    })

def setup_caching(app):
    cache = Cache(app.server, config={
        'CACHE_TYPE': 'filesystem',
        'CACHE_DIR': 'cache-directory'
    })

    @cache.memoize()
    def get_data(file_path):
        return load_excel_data(file_path)

    return get_data