import streamlit as st
import importlib
from uix import lit_packages

from uix.pages import lit_home, lit_about, lit_diagnosis
from uix.pages import lit_qaConfigCheck


#--- alt define sidebar pages
m_aryPages = {
    "Home":                         lit_home,           #--- TODO:  update
    "Diagnosis:  One Tile":         lit_diagnosis,
    #"QA:  File Check":              lit_qaConfigCheck,         
    "About":                        lit_about
}


#--- define module-level vars
m_aryModNames = lit_packages.packages()
m_aryDescr = [] 
m_aryMods = []


def init():
    #--- upper panel
    with st.sidebar:
        kstrUrl_image = "bin/images/logo_omdena_saudi.png"
        st.sidebar.image(kstrUrl_image, width=200)
        #st.sidebar.markdown('Omdena Saudi - Liver HCC Diagnosis with XAI') 
 

    #--- init checkboxes
    strKey = st.sidebar.radio("", list(m_aryPages.keys()))
    pagSel = m_aryPages[strKey]
    writePage(pagSel)



def init_selectBox():
    #--- init module array of page names, and descr
    init_modDescrAry()

    # Display the sidebar with a menu of apps
    kstrMsg = """
            __Claims Anomaly Views__
            """
    with st.sidebar:
        st.markdown('---')
        st.markdown(kstrMsg)
        page = st.selectbox('Select:', m_aryModNames, format_func=fmt_modName) 

    #--- display sidebar footer
    with st.sidebar:
        st.markdown('---')
        st.write('Developed by Chavarria, McKone, Sharma')
        st.write('Contact at iain.mckone@gmail.com')
    
    # Run the chosen app
    m_aryMods[m_aryModNames.index(page)].run()



def init_modDescrAry():
    #--- init global array of page names, and descr
    #--- note:  you need to specify global scope for fxns to access module-level variables 
    global m_aryMods
    global m_aryDescr

    m_aryMods = []
    m_aryDescr = []
    for modName in m_aryModNames:
        modTemp = importlib.import_module('.'+modName,'uix')
        m_aryMods.append(modTemp)

        #--- If the module has a description attribute use that in the 
        #--- select box otherwise use the module name
        try:
            m_aryDescr.append(modTemp.description)
        except:
            m_aryDescr.append(modName)



#--- display the app descriptions instead of the module names in the selctbox
def fmt_modName(strName):
    global m_aryModNames
    global m_aryDescr
    return m_aryDescr[m_aryModNames.index(strName)]



def writePage(uixFile):  
    #--- writes out the page for the selected combo
  
    # _reload_module(page)
    uixFile.run()