import streamlit as st

import sys
from subprocess import call
from pathlib import Path


def run_cmd(command):
    try:
        print(command)
        call(command, shell=True)
    except KeyboardInterrupt:
        print("Process interrupted")
        sys.exit(1)

sys.path.append('diffvg')

if 'diffvg_installed' not in st.session_state:

    st.session_state['diffvg_installed'] = True
    pwd = Path.cwd().absolute().as_posix()
    run_cmd('git submodule update --init --recursive')
    run_cmd(f'cd diffvg && python setup.py install --install-lib {pwd} && cd ..')


st.write('Using submodule pixray')
import os
st.write(os.listdir('.'))
st.write('☝️ actually does have folder `pixray`')

st.write(os.listdir('./diffvg'))

st.write(run_cmd('pip freeze'))
x = st.slider('Select a value')
st.write(x, 'squared is', x * x)