{#
  Custom navbar-logo.html for pytorch_sphinx_theme2
  Uses PyTorch logo by default unless a custom logo is specified in html_theme_options["logo"]
#}

{# Check if custom logo images are specified - handle case where theme_logo might be None or empty #}
{% set logo_config = theme_logo if theme_logo else {} %}
{% set has_custom_logo = logo_config.get('image_light') or logo_config.get('image_dark') or logo_config.get('text') %}

{# Set default PyTorch logos if no custom logo is specified #}
{% if has_custom_logo %}
  {% set logo_light = logo_config.get('image_light', '') %}
  {% set logo_dark = logo_config.get('image_dark', '') %}
  {% set logo_text = logo_config.get('text', '') %}
{% else %}
  {# Use PyTorch default logos from the theme's static/img directory #}
  {% set logo_light = '_static/img/logo-dark.svg' %}
  {% set logo_dark = '_static/img/logo-white.svg' %}
  {% set logo_text = '' %}
{% endif %}

<a class="navbar-brand logo" href="{{ pathto(root_doc) }}">
  {% if logo_light or logo_dark %}
    {% if logo_light %}
    <img src="{{ pathto(logo_light, 1) }}" class="logo__image only-light" alt="{{ project }} - Home"/>
    {% endif %}
    {% if logo_dark %}
    <script>document.write(`<img src="{{ pathto(logo_dark, 1) }}" class="logo__image only-dark" alt="{{ project }} - Home"/>`);</script>
    {% endif %}
  {% elif logo_text %}
    <span class="logo__title">{{ logo_text }}</span>
  {% else %}
    {# Fallback to project name if nothing else is available #}
    <span class="logo__title">{{ project }}</span>
  {% endif %}
</a>