check file + send email

if 'file' in st.session_state and 'row_' in st.session_state:

    if 'file_processed' not in st.session_state:
        st.session_state['file_processed'] = False
    if 'result_file' not in st.session_state:
        st.session_state['result_file'] = None

    if st.button("📤 Обработать файл"):
        with st.spinner("Обрабатываю..."):
            try:
                row = st.session_state['row_']
                # Приводим к row_dict
                # if isinstance(row, pd.DataFrame):
                #     row_dict = row.to_dict(orient="records")
                # elif isinstance(row, pd.Series):
                #     row_dict = [row.to_dict()]
                # elif isinstance(row, dict):
                #     row_dict = [row]
                # elif isinstance(row, list):
                #     if all(isinstance(item, dict) for item in row):
                #         row_dict = row
                #     else:
                #         raise ValueError("Список содержит не словари")
                # else:
                #     raise ValueError(f"Неподдерживаемый тип данных в st.session_state['row_']: {type(row)}")

                # row_dict = row

                # Чистим данные от 'null' и невалидных значений
                # row_dict = clean_row_dict(row_dict)

                # st.write(json.dumps(row_dict, ensure_ascii=False, indent=2))
                # print(json.dumps(row_dict, ensure_ascii=False, indent=2), type(json.dumps(row_dict, ensure_ascii=False, indent=2)))
                files = {"file": st.session_state['file']}
                data = {"data": json.dumps({"index" : st.session_state["index"]}, ensure_ascii=False)}
                try:
                    response_valid = requests.post(
                        API_PROCESS_PATH,
                        files=files,
                        data=data,
                        headers={"Authorization": f"Bearer {API_PROCESS_KEY}"}
                    )
                except ValueError as e:
                    print(e)

                if response_valid.status_code == 200:
                    json_dict = response_valid.json()
                    file_base64 = json_dict['file_base64']
                    file_name = json_dict['file_name']

                    import base64

                    file_bytes = base64.b64decode(file_base64)
                    st.session_state['result_file'] = file_bytes
                    st.session_state['result_file_name'] = file_name

                    # with open(st.session_state['result_file_name'], 'wb') as f:
                    #     f.write(st.session_state['result_file'])

                    #logs
                    print(response_valid.content[:100])
                    print(response_valid.status_code)
                    print(response_valid.headers.get('Content-Type'))

                    st.session_state['file_processed'] = True
                    st.success("✅ Файл успешно обработан! Теперь укажите email для отправки.")

                else:
                    error_msg = response_valid.json().get('error', 'Неизвестная ошибка')
                    st.error(f"❌ Ошибка API: {error_msg}")

            except Exception as e:
                print(e)
                st.exception(e)

    if st.session_state['file_processed']:
        user_email = st.text_input("📧 Введите ваш email")
        if st.button("📨 Отправить файл на email"):
            if not user_email.strip():
                st.warning("⚠️ Email не указан — файл не будет отправлен")
            else:
                try:
                    send_result(user_email, st.session_state['result_file'], "updated_file.docx")
                    st.success(f"📩 Файл отправлен на {user_email}")
                except Exception as e:
                    print(e)
                    st.error(f"⚠️ Ошибка отправки: {e}")