{# /failures filter controls. Same grammar as /opportunities filter -
   collapsible <details>, 4-col grid, auto-submit. Different fields
   (Reason / Suggestions / Dataset / Author). #}
{% from "components/_filter_form.html" import filter_form %}
{% from "components/_filter_select.html" import filter_select %}
{% from "components/_filter_text.html" import filter_text %}

{% set _signals = [signals.search, signals.reason, signals.suggestions,
                   signals.dataset, signals.author] %}
{% set _hidden = {"sort": signals.sort, "direction": signals.direction} %}

{% call filter_form(action="/failures",
                    clear_href="/failures",
                    signals=_signals,
                    hidden=_hidden) %}
  {{ filter_text("search", "Search", signals.search,
                 placeholder="Search query body or destination…",
                 aria_label="Search failures") }}
  {{ filter_select("reason", "Reason", signals.reason,
                   values=[""] + available_reasons,
                   labels=["All reasons"] + (available_reasons | map("bq_reason_humanize") | list),
                   titles=[""] + (available_reasons | map("bq_reason_description") | list),
                   aria_label="Filter failures by error reason") }}
  {{ filter_select("suggestions", "Suggestions", signals.suggestions,
                   values=["", "with", "without"],
                   labels=["Any", "With", "Without"],
                   aria_label="Filter failures by suggestion availability") }}
  {{ filter_select("dataset", "Dataset", signals.dataset,
                   values=[""] + available_datasets,
                   labels=["All datasets"] + available_datasets,
                   aria_label="Filter failures by dataset") }}
  {{ filter_select("author", "Author", signals.author,
                   values=[""] + available_authors,
                   labels=["All authors"] + available_authors,
                   aria_label="Filter failures by author") }}
{% endcall %}