import fitz  # PyMuPDF

def extract_text_from_pdfs(folder_path="meal_plans"):
    import os
    texts = []
    for file_name in os.listdir(folder_path):
        if file_name.endswith(".pdf"):
            doc = fitz.open(os.path.join(folder_path, file_name))
            text = "\n".join([page.get_text() for page in doc])
            texts.append(text)
    return "\n\n".join(texts)

def format_chat(history, new_input):
    return "\n".join([f"User: {inp}\nBot: {out}" for inp, out in history] + [f"User: {new_input}"])