import plotly.express as px

def create_engine_vol_histogram(df):
    fig = px.histogram(df, x="vol_engine", nbins=40)
    
    fig.update_layout(
            xaxis = {
                'title': 'Engine volume',
                'visible': True,
                'showticklabels': True
            },
            yaxis = {
                'title': '',
                'visible': True,
                'showticklabels': True
            },
            margin = {
                'l': 0,        # left
                'r': 10,        # right
                't': 50,        # top
                'b': 10,        # bottom
            }
        )
    
    return fig

def create_price_boxplot(df):
    fig = px.box(df, x='year', y='price')

    fig.update_layout(
        xaxis = {
            'title': 'Year'
        },
        yaxis = {
            'title': 'Price'
        },
        margin = {
            'l': 0,
            'r': 0,
            't': 50,
            'b': 10
        }
    )

    return fig