from dash import Dash, dcc, html, Input, Output
import plotly.express as px

app = Dash(__name__)


app.layout = html.Div([
    html.H4('Polotical candidate voting pool analysis'),
    html.P("Select a candidate:"),
    dcc.RadioItems(
        id='choropleth-maps-x-candidate', 
        options=["Joly", "Coderre", "Bergeron"],
        value="Coderre",
        inline=True
    ),
    dcc.Graph(id="choropleth-maps-x-graph"),
])


@app.callback(
    Output("choropleth-maps-x-graph", "figure"), 
    Input("choropleth-maps-x-candidate", "value"))
def display_choropleth(candidate):
    df = px.data.election() # replace with your own data source
    geojson = px.data.election_geojson()
    fig = px.choropleth(
        df, geojson=geojson, color=candidate,
        locations="district", featureidkey="properties.district",
        projection="mercator", range_color=[0, 6500])
    fig.update_geos(fitbounds="locations", visible=False)
    fig.update_layout(margin={"r":0,"t":0,"l":0,"b":0})
    return fig


if __name__ == "__main__":
    app.run_server(debug=True)