from dash import dcc, html


def build_header(tool_title, links):
    return html.Header(
        html.Div([
            html.A(
                html.Img(
                    src="/assets/gov-fda-new-white.svg",
                    alt="U.S. Food and Drug Administration",
                    className="fda-logo",
                ),
                href="/",
                className="site-brand",
            ),
            html.Span(tool_title, className="site-tool-title"),
            html.Nav(
                [
                    dcc.Link(label, href=path)
                    for label, path in links
                ],
                className="site-nav",
                **{"aria-label": "Main navigation"},
            ),
        ], className="site-container site-header-inner"),
        className="site-header",
    )

def build_footer(text, links=()):
    return html.Footer(
        html.Div(
            [
                html.Small(text),
                html.Nav(
                    [
                        dcc.Link(label, href=path)
                        for label, path in links
                    ],
                    **{"aria-label": "Footer navigation"},
                ) if links else None,
            ],
            className="site-container site-footer-inner",
        ),
        className="site-footer",
    )