{{- $main_style := dict -}}
{{- $assets_to_concat := collections.Slice -}}

{{/* Custom CSS configuration with backwards-compatible deprecated fallback. */}}
{{- $custom_css := collections.Slice -}}
{{- $has_ananke_custom_css := false -}}

{{- with site.Params.ananke -}}
  {{- $has_ananke_custom_css = collections.IsSet . "custom_css" -}}
  {{- if $has_ananke_custom_css -}}
    {{- $custom_css = .custom_css | default collections.Slice -}}
  {{- end -}}
{{- end -}}

{{- if not $has_ananke_custom_css -}}
  {{- if collections.IsSet site.Params "custom_css" -}}
    {{- fmt.Warnf "[ananke] %s" "Parameter site.Params.custom_css is deprecated. Use site.Params.ananke.custom_css instead." -}}
    {{- $custom_css = site.Params.custom_css | default collections.Slice -}}
  {{- end -}}
{{- end -}}

{{/* Tachyons Base Stylesheet */}}
{{- with resources.Get "ananke/css/_tachyons.css" -}}
  {{- $assets_to_concat = $assets_to_concat | collections.Append . -}}
{{- end -}}

{{/* Theme CSS files */}}
{{- range collections.Slice "_code.css" "_hugo-internal-templates.css" "_social-icons.css" "_styles.css" -}}
  {{- with partials.IncludeCached "AnankeGetResource.html" . . -}}
    {{- $assets_to_concat = $assets_to_concat | collections.Append . -}}
  {{- end -}}
{{- end -}}

{{/* Generated social network hover colours */}}
{{- with site.Params.ananke.social -}}
  {{- $config := . -}}
  {{- $networks := $config.follow.networks | default collections.Slice -}}
  {{- $setups := collections.Where $config.networks "slug" "in" $networks -}}

  {{- with $setups -}}
    {{- $socials_rules := collections.Slice -}}

    {{- range $service := . -}}
      {{- with $service.color -}}
        {{- $rule := fmt.Printf ".ananke-socials a.%s:hover {\n  color: %s !important;\n}" $service.slug . -}}
        {{- $socials_rules = $socials_rules | collections.Append $rule -}}
      {{- end -}}
    {{- end -}}

    {{- with $socials_rules -}}
      {{- $socials_css := collections.Delimit . "\n\n" | resources.FromString "ananke/css/generated_socials.css" -}}
      {{- $assets_to_concat = $assets_to_concat | collections.Append $socials_css -}}
    {{- end -}}
  {{- end -}}
{{- end -}}

{{/* Custom CSS files and CSS-generating partials */}}
{{- with $custom_css -}}
  {{- range . -}}
    {{- $custom_css_entry := . -}}
    {{- $custom_css_entry_ext := path.Ext $custom_css_entry -}}

    {{- if compare.Eq $custom_css_entry_ext ".html" -}}
      {{- $partial_template_path := fmt.Print "_partials/" $custom_css_entry -}}

      {{- if templates.Exists $partial_template_path -}}
        {{- $partial_css := partials.Include $custom_css_entry site -}}

        {{- with $partial_css -}}
          {{- $partial_css_resource_path := printf "ananke/css/generated/%s.css" (replace $custom_css_entry "/" "-") -}}
          {{- $partial_css_resource := printf "%s" . | resources.FromString $partial_css_resource_path -}}
          {{- $assets_to_concat = $assets_to_concat | collections.Append $partial_css_resource -}}
        {{- else -}}
          {{- fmt.Warnf "[ananke] %s" (fmt.Printf "Stylesheet partial %q returned an empty value and was skipped." $custom_css_entry) -}}
        {{- end -}}
      {{- else -}}
        {{- fmt.Warnf "[ananke] %s" (fmt.Printf "Stylesheet partial %q was skipped because layouts/partials/%s does not exist." $custom_css_entry $custom_css_entry) -}}
      {{- end -}}
    {{- else -}}
      {{- with partials.IncludeCached "AnankeGetResource.html" $custom_css_entry $custom_css_entry -}}
        {{- $subtype := .MediaType.SubType -}}
        {{- if in (collections.Slice "x-scss" "x-sass" "scss" "sass") $subtype -}}
         {{- fmt.Warnf "[ananke] %s" (fmt.Printf "Stylesheet %q has type %q and was skipped. Sass/SCSS is no longer compiled by this template. Precompile it to CSS or replace it with a .css file." .Name $subtype) -}}
        {{- else -}}
          {{- $assets_to_concat = $assets_to_concat | collections.Append . -}}
        {{- end -}}
      {{- end -}}
    {{- end -}}
  {{- end -}}
{{- end -}}

{{/* Build, optionally minify, and fingerprint the concatenated CSS bundle. */}}
{{- with $assets_to_concat -}}
  {{- $style := . | resources.Concat "ananke/css/main.css" -}}
  {{- $build_options := dict
    "minify" (cond hugo.IsDevelopment false true)
    "sourceMap" (cond hugo.IsDevelopment "linked" "none")
    "targetPath" "ananke/css/main.css"
  -}}
  {{- $style = $style | css.Build $build_options -}}

  {{- if hugo.IsProduction -}}
    {{- $style = $style | resources.Fingerprint -}}
  {{- end -}}

  {{- $main_style = $style -}}
{{- end -}}

{{- with $main_style -}}
  <link rel="stylesheet" href="{{ .RelPermalink }}"{{ with .Data.Integrity }} integrity="{{ . }}" crossorigin="anonymous"{{ end }}>
{{- end -}}

{{/*
  Fallback custom CSS links.

  If an ananke.custom_css entry is not found in assets/ananke/css/, it is
  assumed to be a static file or external URL and emitted as a separate
  stylesheet link.

  HTML entries are treated as CSS-generating partials and are never emitted as
  fallback stylesheet links.
*/}}
{{- range $custom_css -}}
  {{- $custom_css_entry := . -}}
  {{- $custom_css_entry_ext := path.Ext $custom_css_entry -}}

  {{- if compare.Eq $custom_css_entry_ext ".html" -}}
    {{/* CSS-generating partials are handled above. */}}
  {{- else -}}
    {{- with partials.IncludeCached "AnankeGetResource.html" $custom_css_entry $custom_css_entry -}}
      {{/* Already handled in the asset bundle above, or skipped if unsupported. */}}
    {{- else -}}
      <link rel="stylesheet" href="{{ urls.RelURL . }}">
    {{- end -}}
  {{- end -}}
{{- end -}}

{{ define "_partials/AnankeGetResource.html" }}
  {{- $resource := false -}}
  {{- with resources.Get (fmt.Print "ananke/css/" .) -}}
    {{- $resource = . -}}
  {{- end -}}
  {{- return $resource -}}
{{ end }}