main.py

import streamlit as st
from streamlit_option_menu import option_menu
import streamlit.components.v1 as components
import time
from model import *
import pandas as pd  # Make sure to import pandas if you're using it

if 'model' not in st.session_state:
    st.session_state.model = 'Model 1'
def update_radio2():
    st.session_state.model = st.session_state.radio2

if 'genre' not in st.session_state:
    st.session_state.genre = 3
def update_num_genre():
    st.session_state.genre = st.session_state.num_genre

if 'artist' not in st.session_state:
    st.session_state.artist = 5
def update_same_art():
    st.session_state.artist = st.session_state.same_art

if 'model2' not in st.session_state:
    st.session_state.model2 = 'Spotify model'
def update_radio1():
    st.session_state.model2 = st.session_state.radio1

if 'Region' not in st.session_state:
    st.session_state.rg = "US"
def update_Region():
    st.session_state.rg = st.session_state.Region

if 'radio' not in st.session_state:
    st.session_state.feature = "Playlist"
def update_radio0():
    st.session_state.feature = st.session_state.radio

if 'p_url' not in st.session_state:
    st.session_state.p_url = 'Example: https://open.spotify.com/playlist/37i9dQZF1DX8FwnYE6PRvL?si=06ff6b38d4124af0'
def update_playlist_url():
    st.session_state.p_url = st.session_state.playlist_url

if 's_url' not in st.session_state:
    st.session_state.s_url = 'Example: https://open.spotify.com/track/5CQ30WqJwcep0pYcV4AMNc?si=ed4b04f153a24531'
def update_song_url():
    st.session_state.s_url = st.session_state.song_url

if 'a_url' not in st.session_state:
    st.session_state.a_url = 'Example: https://open.spotify.com/artist/3RNrq3jvMZxD9ZyoOZbQOD?si=UNAsX20kRpG89bxOO8o7ew'
def update_artist_url():
    st.session_state.a_url = st.session_state.artist_url

def play_recomm():
    if 'rs' in st.session_state:
        del st.session_state.rs, st.session_state.err
    try:
        if len(pd.read_csv('Data/new_tracks.csv')) >= 200:
            with st.spinner('Updating the dataset...'):
                x = update_dataset()
                st.success('{} New tracks were added to the dataset.'.format(x))
    except:
        st.error("The dataset update failed.")
    with st.spinner('Getting Recommendations...'):
        res, err = playlist_model(st.session_state.p_url, st.session_state.model, st.session_state.genre, st.session_state.artist)
        st.session_state.rs = res
        st.session_state.err = err
    if len(st.session_state.rs) >= 1:
        if st.session_state.model == 'Model 1' or st.session_state.model == 'Model 2':
            st.success('Go to the Result page to view the top {} recommendations'.format(len(st.session_state.rs)))
        else:
            st.success('Go to the Result page to view the Spotify recommendations')
    else:
        st.error('Model failed. Check the log for more information.')

def art_recomm():
    if 'rs' in st.session_state:
        del st.session_state.rs, st.session_state.err
    with st.spinner('Getting Recommendations...'):
        res, err = top_tracks(st.session_state.a_url, st.session_state.rg)
        st.session_state.rs = res
        st.session_state.err = err
    if len(st.session_state.rs) >= 1:
        st.success("Go to the Result page to view the Artist's top tracks")
    else:
        st.error('Model failed. Check the log for more information.')

def song_recomm():
    if 'rs' in st.session_state:
        del st.session_state.rs, st.session_state.err
    with st.spinner('Getting Recommendations...'):
        res, err = song_model(st.session_state.s_url, st.session_state.model, st.session_state.genre, st.session_state.artist)
        st.session_state.rs = res
        st.session_state.err = err
    if len(st.session_state.rs) >= 1:
        if st.session_state.model == 'Model 1' or st.session_state.model == 'Model 2':
            st.success('Go to the Result page to view the top {} recommendations'.format(len(st.session_state.rs)))
        else:
            st.success('Go to the Result page to view the Spotify recommendations')
    else:
        st.error('Model failed. Check the log for more information.')

def playlist_page():
    st.subheader("User Playlist")
    st.markdown('---')
    playlist_uri = (st.session_state.playlist_url).split('/')[-1].split('?')[0]
    uri_link = 'https://open.spotify.com/embed/playlist/' + playlist_uri
    components.iframe(uri_link, height=300)

def song_page():
    st.subheader("User Song")
    st.markdown('---')
    song_uri = (st.session_state.song_url).split('/')[-1].split('?')[0]
    uri_link = 'https://open.spotify.com/embed/track/' + song_uri
    components.iframe(uri_link, height=100)

def artist_page():
    st.subheader("User Artist")
    st.markdown('---')
    artist_uri = (st.session_state.artist_url).split('/')[-1].split('?')[0]
    uri_link = 'https://open.spotify.com/embed/artist/' + artist_uri
    components.iframe(uri_link, height=80)

def spr_sidebar():
    menu = option_menu(
        menu_title=None,
        options=['Home', 'Result'],  # Removed 'About' and 'Log'
        icons=['house', 'book'],
        menu_icon='cast',
        default_index=0,
        orientation='horizontal'
    )
    if menu == 'Home':
        st.session_state.app_mode = 'Home'
    elif menu == 'Result':
        st.session_state.app_mode = 'Result'

def home_page():
    st.session_state.radio = st.session_state.feature
    st.session_state.radio2 = st.session_state.model
    st.session_state.num_genre = st.session_state.genre
    st.session_state.same_art = st.session_state.artist
    st.session_state.Region = st.session_state.rg

    st.title('SpotifAI')
    col, col2, col3 = st.columns([2, 2, 3])
    radio = col.radio("Feature", options=("Playlist", "Song", "Artist Top Tracks"), key='radio', on_change=update_radio0)
    if radio == "Artist Top Tracks":
        radio1 = col2.radio("Model", options=["Spotify model"], key='radio1', on_change=update_radio1)
        Region = col3.selectbox("Please Choose Region", index=58, key='Region', on_change=update_Region, options=('AD', 'AR', 'AU', 'AT', 'BE', 'BO', 'BR', 'BG', 'CA', 'CL', 'CO', 'CR', 'CY', 'CZ', 'DK', 'DO', 'EC', 'SV', 'EE', 'FI', 'FR', 'DE', 'GR', 'GT', 'HN', 'HK', 'HU', 'IS', 'ID', 'IE', 'IT', 'JP', 'LV', 'LI', 'LT', 'LU', 'MY', 'MT', 'MX', 'MC', 'NL', 'NZ', 'NI', 'NO', 'PA', 'PY', 'PE', 'PH', 'PL', 'PT', 'SG', 'ES', 'SK', 'SE', 'CH', 'TW', 'TR', 'GB', 'US', 'UY'))
    elif radio == "Playlist" or radio == "Song":
        radio2 = col2.radio("Model", options=("Model 1", "Model 2", "Spotify Model"), key='radio2', on_change=update_radio2)
        if st.session_state.radio2 == "Model 1" or st.session_state.radio2 == "Model 2":
            num_genre = col3.selectbox("choose a number of genres to focus on", options=(1, 2, 3, 4, 5, 6, 7), index=2, key='num_genre', on_change=update_num_genre)
            same_art = col3.selectbox("How many recommendations by the same artist", options=(1, 2, 3, 4, 5, 7, 10, 15), index=3, key='same_art', on_change=update_same_art)

    st.markdown("<br>", unsafe_allow_html=True)

    if radio == "Playlist":
        st.session_state.playlist_url = st.session_state.p_url
        Url = st.text_input(label="Playlist Url", key='playlist_url', on_change=update_playlist_url)
        playlist_page()
        state = st.button('Get Recommendations')
        with st.expander("Here's how to find any Playlist URL in Spotify"):
            st.write(""" 
                - Search for Playlist on the Spotify app
                - Right Click on the Playlist you like
                - Click "Share"
                - Choose "Copy link to playlist"
            """)
        if state:
            play_recomm()
    elif radio == "Song":
        st.session_state.song_url = st.session_state.s_url
        Url = st.text_input(label="Song Url", key='song_url', on_change=update_song_url)
        song_page()
        state = st.button('Get Recommendations')
        with st.expander("Here's how to find any Song URL in Spotify"):
            st.write(""" 
                - Search for Song on the Spotify app
                - Right Click on the Song you like
                - Click "Share"
                - Choose "Copy link to song"
            """)
        if state:
            song_recomm()
    elif radio == "Artist Top Tracks":
        st.session_state.artist_url = st.session_state.a_url
        Url = st.text_input(label="Artist Url", key='artist_url', on_change=update_artist_url)
        artist_page()
        state = st.button('Get Recommendations')
        with st.expander("Here's how to find any Artist URL in Spotify"):
            st.write(""" 
                - Search for Artist on the Spotify app
                - Right Click on the Artist you like
                - Click "Share"
                - Choose "Copy link to artist"
            """)
        if state:
            art_recomm()

def result_page():
    if 'rs' in st.session_state:
        df = st.session_state.rs
        if st.session_state.radio == "Playlist":
            st.subheader("Playlist Recommendations")
        elif st.session_state.radio == "Song":
            st.subheader("Song Recommendations")
        elif st.session_state.radio == "Artist Top Tracks":
            st.subheader("Artist Top Tracks Recommendations")
        else:
            st.subheader("Recommendations")
        st.dataframe(df)

def main():
    spr_sidebar()        
    if st.session_state.app_mode == 'Home':
        home_page()
    if st.session_state.app_mode == 'Result':
        result_page()

if __name__ == '__main__':
    main()