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import streamlit as st
import os
from dotenv import load_dotenv
from views.continue_survey import continue_survey_screen
from db.crud import read

load_dotenv()
VALIDATION_CODE = os.getenv("VALIDATION_CODE")


def validate_username(username: str) -> bool:
    return bool(username.strip())


def validate_code(input_code: str) -> bool:
    """Validate the entered code against the hardcoded validation code"""
    return input_code.strip() == VALIDATION_CODE


def welcome_screen():
    """Display the welcome screen and direct users accordingly."""
    with st.container():
        st.markdown("""<style> .st-emotion-cache-1jicfl2 {width: 50%;} </style>""", unsafe_allow_html=True)
        st.title("Welcome to the Feedback Survey")

        username_input = st.text_input("Enter your first name and press TAB. Usernames are case-sensitive.")
        validation_code_input = st.text_input("Enter the validation code to proceed and press ENTER:")

        next_button = st.button("Next")
        footer_html = """<div style='text-align: center; background-color:#ECECEC;padding:3rem;'> <p 
        style='font-size: large;'>⚠️ Note: This is still a work in progress. <br> If you encounter bugs or issues 
        please create a Pull Request and we will look into it.</br></p> </div> """
        st.markdown(footer_html, unsafe_allow_html=True)

        if (username_input and validation_code_input) or next_button:
            if validate_username(username_input) and validate_code(validation_code_input):
                st.session_state.username = username_input
            else:
                if not validate_username(username_input):
                    st.warning("Invalid username. Please check and try again.")
                if not validate_code(validation_code_input):
                    st.warning("Invalid validation code. Please check and try again.")