'''Module to create a Dash app that displays visualizations of YNAB data.'''
import dash
import dash_bootstrap_components as dbc
from dash.dependencies import Input, Output

import visuals.layout as layout
import visuals.components as charts

def update_visuals(start_date, end_date):
    # Update the data based on the selected date range
    master = charts.update_dates(start_date, end_date)
    data = charts.update_data(master)
    return layout.create_layout(data)

# Initialize the app with a dark theme
app = dash.Dash(external_stylesheets=[dbc.themes.DARKLY])

# App layout
app.layout = update_visuals()

@app.callback(
    [
        Input('date-picker-range', 'start_date'),
        Input('date-picker-range', 'end_date')
    ]
)