{# TOWNCRIER TEMPLATE #}
{% for section, _ in sections.items() %}
{% set underline = underlines[0] %}{% if section %}{{section}}
{{ underline * section|length }}{% set underline = underlines[1] %}

{% endif %}

{% if sections[section] %}
{% for category, val in definitions.items() if category in sections[section]%}
{{ definitions[category]['name'] }}
{{ underline * definitions[category]['name']|length }}

{% if definitions[category]['showcontent'] %}
{% for text, change_note_refs in sections[section][category].items() %}
- {{ text + '\n' }}

  {#
      NOTE: Replacing 'e' with 'f' is a hack that prevents Jinja's `int`
      NOTE: filter internal implementation from treating the input as an
      NOTE: infinite float when it looks like a scientific notation (with a
      NOTE: single 'e' char in between digits), raising an `OverflowError`,
      NOTE: subsequently. 'f' is still a hex letter so it won't affect the
      NOTE: check for whether it's a (short or long) commit hash or not.
      Ref: https://github.com/pallets/jinja/issues/1921
  -#}
  {%-
    set pr_issue_numbers = change_note_refs
    | map('lower')
    | map('replace', 'e', 'f')
    | map('int', default=None)
    | select('integer')
    | map('string')
    | list
  -%}
  {%- set arbitrary_refs = [] -%}
  {%- set commit_refs = [] -%}
  {%- with -%}
    {%- set commit_ref_candidates = change_note_refs | reject('in', pr_issue_numbers) -%}
    {%- for cf in commit_ref_candidates -%}
      {%- if cf | length in (7, 8, 40) and cf | int(default=None, base=16) is not none -%}
        {%- set _ = commit_refs.append(cf) -%}
      {%- else -%}
        {%- set _ = arbitrary_refs.append(cf) -%}
      {%- endif -%}
    {%- endfor -%}
  {%- endwith -%}

  {% if pr_issue_numbers -%}
  *Related issues and pull requests on GitHub:*
  :issue:`{{ pr_issue_numbers | join('`, :issue:`') }}`.
  {% endif %}

  {% if commit_refs -%}
  *Related commits on GitHub:*
  :commit:`{{ commit_refs | join('`, :commit:`') }}`.
  {% endif %}

  {% if arbitrary_refs -%}
  *Unlinked references:*
  {{ arbitrary_refs | join(', ') }}`.
  {% endif %}

{% endfor %}
{% else %}
- {{ sections[section][category]['']|join(', ') }}

{% endif %}
{% if sections[section][category]|length == 0 %}
No significant changes.

{% else %}
{% endif %}

{% endfor %}
{% else %}
No significant changes.


{% endif %}
{% endfor %}
----
{{ '\n' * 2 }}