{{- $page := . }}
{{- $nonautothemevariants := slice }}
{{- $formathtmlpre := ":root:not([data-r-output-format='print'])" }}
{{- $formathtml := "" }}
{{- $minify := not hugo.IsServer }}
{{- if isset site.Params "minify" }}
  {{- $minify = site.Params.minify }}
{{- end }}

{{- /*
Unification run:
- convert from old forms to slice of dicts
- add default name property
- convert auto property to slice
- remember default variants for auto mode
*/}}
{{- $tempthemevariants := slice | append (.Site.Params.themeVariant | default "auto" ) }}
{{- $themevariants := slice }}
{{- range $tempthemevariant := $tempthemevariants }}
  {{- $themevariant := $tempthemevariant }}
  {{- if not (reflect.IsMap $themevariant) }}
    {{- $themevariant = dict "identifier" $tempthemevariant }}
  {{- end }}
  {{- if not $themevariant.name }}
    {{- $themevariant = collections.Merge $themevariant (dict "name" ($themevariant.identifier | humanize | strings.Title)) }}
  {{- end }}
  {{- if eq $themevariant.identifier "auto" }}
    {{- $themevariant = collections.Merge $themevariant (dict "auto" ($themevariant.auto | default slice)) }}
  {{- end }}
  {{- if not (isset $themevariant "auto") }}
    {{- $nonautothemevariants = $nonautothemevariants | append $themevariant.identifier }}
  {{- end }}
  {{- $themevariants = $themevariants | append $themevariant }}
{{- end }}

{{- /*
Generator run:
- fill up auto property with defaults
- write variant & chroma CSS string of normal variants and for light and dark of auto variants
*/}}
{{- $defaultautothemevariants := slice }}
{{- $defaultautothemevariants = $defaultautothemevariants | append (index .Site.Params.themeVariantAuto 0 | default (index $nonautothemevariants 0) | default "relearn-light") }}
{{- $defaultautothemevariants = $defaultautothemevariants | append (index .Site.Params.themeVariantAuto 1 | default (index $nonautothemevariants 1) | default "relearn-dark") }}
{{- $tempthemevariants = $themevariants }}
{{- $themevariants = slice }}
{{- range $tempthemevariant := $tempthemevariants }}
  {{- $themevariant := $tempthemevariant }}
  {{- if collections.IsSet $themevariant "auto" }}
    {{- $light := index $themevariant.auto 0 | default (index $defaultautothemevariants 0) }}
    {{- $dark := index $themevariant.auto 1 | default (index $defaultautothemevariants 1) }}
    {{- $themevariant = collections.Merge $themevariant (dict "auto" (slice | append $light | append $dark)) }}
    {{- $lightthemevariant := partial "get-theme-details.html" (dict "themevariant" $themevariant "identifier" $light) }}
    {{- $darkthemevariant := partial "get-theme-details.html" (dict "themevariant" $themevariant "identifier" $dark) }}
    {{- $formathtmlpre = print $formathtmlpre
      ":not([data-r-theme-variant='" $themevariant.identifier "'])"
    }}
    {{- $formathtml = print $formathtml
      "\n:root:not([data-r-output-format='print'])[data-r-theme-variant='" $themevariant.identifier "'] {"
      "\n@media screen and (prefers-color-scheme: light) {"
      "\n&" $lightthemevariant.themecontent
      "\n" $lightthemevariant.chromacontent
      "\n}"
      "\n@media screen and (prefers-color-scheme: dark) {"
      "\n&" $darkthemevariant.themecontent
      "\n" $darkthemevariant.chromacontent
      "\n}"
      "\n}"
    }}
  {{- else }}
    {{- $themevariant = partial "get-theme-details.html" (dict "themevariant" $themevariant "identifier" $themevariant.identifier)}}
    {{- $formathtmlpre = print $formathtmlpre
      ":not([data-r-theme-variant='" $themevariant.identifier "'])"
    }}
    {{- $formathtml = print $formathtml
      "\n:root:not([data-r-output-format='print'])[data-r-theme-variant='" $themevariant.identifier "'] {"
      "\n&" $themevariant.themecontent
      "\n" $themevariant.chromacontent
      "\n}"
}}
  {{- end }}
  {{- $themevariants = $themevariants | append $themevariant }}
{{- end }}

{{- /*
- Read default stuff
*/}}
{{- $defaultthemevariant := partial "get-theme-details.html" (dict "themevariant" (dict) "identifier" "relearn-light") }}
{{- $nucleuscontent := "" }}
{{- with resources.Get "css/nucleus.css" }}
  {{- $nucleuscontent = .Content }}
{{- end }}
{{- $fontscontent := "" }}
{{- with resources.Get "css/fonts.css" }}
  {{- $fontscontent = .Content }}
{{- end }}
{{- $htmlcontent := "" }}
{{- with resources.Get "css/format-html.css" }}
  {{- $htmlcontent = .Content }}
{{- end }}
{{- $printcontent := "" }}
{{- with resources.Get "css/format-print.css" }}
  {{- $printcontent = .Content }}
{{- end }}

{{- /*
- Read variables.css and add custom box styles
*/}}
{{- $variablescontent := "" }}
{{- with resources.Get "css/variables.css" }}
  {{- $boxcontent := "" }}
  {{- range $page.Site.Params.boxStyle }}
    {{- $identifier := upper .identifier }}
    {{- $boxcontent = print $boxcontent
      "\n    --INTERNAL-BOX-" $identifier "-color: var(--BOX-" $identifier "-color, " .color ");"
      "\n    --INTERNAL-BOX-" $identifier "-TEXT-color: var(--BOX-" $identifier "-TEXT-color, var(--INTERNAL-BOX-TEXT-color));"
    }}
  {{- end }}
  {{- $variablescontent = print
    ":root {"
    "\n" .Content
    $boxcontent
    "\n}"
  }}
{{- end }}

{{- /*
- Write theme.css
*/}}
{{- with resources.Get "css/theme.css" }}
  {{- $boxcontent := "" }}
  {{- range $page.Site.Params.boxStyle }}
    {{- $identifier := upper .identifier }}
    {{- $identifierl := lower .identifier }}
    {{- $boxcontent = print $boxcontent
      "\n.cstyle." $identifierl " {"
      "\n    --VARIABLE-BOX-color: var(--INTERNAL-BOX-" $identifier "-color);"
      "\n    --VARIABLE-BOX-TEXT-color: var(--INTERNAL-BOX-" $identifier "-TEXT-color);"
      "\n}\n"
    }}
  {{- end }}
  {{- $themecontent := print
    $variablescontent
    "\n\n" $nucleuscontent
    "\n" .Content
    $boxcontent
    "\n" $fontscontent
  }}
  {{- $cssres := $themecontent | resources.FromString "css/theme.css" }}
  {{- if $minify }}
    {{- $cssres = $cssres | minify }}
  {{- end }}
  {{- /* the following code causes Hugo to generate our css file - although it is in comments */}}<!-- {{ $cssres.RelPermalink }} -->
{{- end }}

{{- /*
- Write swagger.css
*/}}
{{- with resources.Get "css/swagger.css" }}
  {{- $swaggercontent := print
    $variablescontent "\n"
    .Content "\n"
    $fontscontent "\n"
  }}
  {{- $cssres := $swaggercontent | resources.FromString "css/swagger.css" }}
  {{- if $minify }}
    {{- $cssres = $cssres | minify }}
  {{- end }}
  {{- /* the following code causes Hugo to generate our css file - although it is in comments */}}<!-- {{ $cssres.RelPermalink }} -->
{{- end }}

{{- /*
- Write format-html.css
*/}}
{{- $htmlcontent = print
  "@media screen {"
  "\n" $formathtmlpre ","
  $formathtml
  "\n}"
  "\n@media print {"
  "\n&" $defaultthemevariant.themecontent
  "\n" $defaultthemevariant.chromacontent
  "\n}"
  "\n@media print {"
  "\n" $printcontent
  "\n}"
  "\n" $htmlcontent
}}
{{- $cssres := $htmlcontent | resources.FromString "css/format-html.css" }}
{{- if $minify }}
  {{- $cssres = $cssres | minify }}
{{- end }}
{{- /* the following code causes Hugo to generate our css file - although it is in comments */}}<!-- {{ $cssres.RelPermalink }} -->

{{- /*
- Write format-print.css
*/}}
{{- $printcontent = print
  ":root[data-r-output-format='print'] {"
  "\n&" $defaultthemevariant.themecontent
  "\n" $defaultthemevariant.chromacontent
  "\n}"
  "\n" $printcontent
}}
{{- $cssres := $printcontent | resources.FromString "css/format-print.css" }}
{{- if $minify }}
  {{- $cssres = $cssres | minify }}
{{- end }}
{{- /* the following code causes Hugo to generate our css file - although it is in comments */}}<!-- {{ $cssres.RelPermalink }} -->

{{- return $themevariants }}

{{- define "partials/get-theme-details.html" }}
  {{- $themevariant := .themevariant }}
  {{- $identifier := .identifier }}
  {{- $themecontent := "" }}
  {{- with resources.Get (printf "css/theme-%s.css" $identifier) }}
    {{- $themecontent = .Content }}
  {{- else }}
    {{- errorf "\"theme-%s.css\": file not found in \"assets/css\"; if you are migrating from a theme version older thant 6.0.0, you have to move it over from \"static/css\"" $identifier }}
  {{- end }}
  {{- $chroma := "" }}
  {{- $chromacontent := "" }}
  {{- range findRESubmatch `[ \t]*@import\s+[^$]*?chroma-([^.]*?)\.css` $themecontent }}
    {{- $chroma = index . 1 }}
    {{- errorf "\"theme-%s.css\": UNSUPPORTED use of @import for chroma stylesheet, instead use '--CODE-theme: %s;'; see https://mcshelby.github.io/hugo-theme-relearn/introduction/releasenotes/6/#6-0-0" $identifier $chroma }}
  {{- end }}
  {{- $tempthemecontent := $themecontent }}
  {{- range findRESubmatch `[ \t]*@import\s+[^$]*?theme-([^.]*?)\.css` $themecontent }}
    {{- $subidentifier := index . 1 }}
    {{- $themevariant = partial "get-theme-details.html" (dict "themevariant" $themevariant "identifier" $subidentifier) }}
    {{- $tempthemecontent = replaceRE (printf `[ \t]*@import\s+[^$]*?theme-%s\.css` $subidentifier) $themevariant.themecontent $tempthemecontent 1 }}
    {{- $chroma = $themevariant.chroma }}
    {{- $chromacontent = $themevariant.chromacontent }}
  {{- end }}
  {{- $themecontent = $tempthemecontent}}
  {{- range findRESubmatch `[ \t]*--CODE-theme\s*:\s*([^;]*?)\s*;` $themecontent }}
    {{- $chroma = index . 1 }}
    {{- $cssres := resources.Get (printf "css/chroma-%s.css" $chroma) }}
    {{- if not $cssres }}
      {{- errorf "\"chroma-%s.css\": file not found in \"assets/css\"; if you are migrating from a theme version older thant 6.0.0, you have to move it over from \"static/css\"" $chroma }}
    {{- end }}
    {{- $chromacontent = $cssres.Content }}
  {{- end }}
  {{- if not $chroma }}
    {{- $chroma = "relearn-light" }}
    {{- $cssres := resources.Get (printf "css/chroma-%s.css" $chroma) }}
    {{- if not $cssres }}
      {{- errorf "\"chroma-%s.css\": file not found in \"assets/css\"; if you are migrating from a theme version older thant 6.0.0, you have to move it over from \"static/css\"" $chroma }}
    {{- end }}
    {{- $chromacontent = $cssres.Content }}
    {{- $themecontent = replaceRE `(:root\s*\{[ \t]*)(\s*)` (printf "${1}${2}--CODE-theme: %s;${2}" $chroma) $themecontent }}
  {{- end }}
  {{- $themevariant = collections.Merge $themevariant (dict "themecontent" $themecontent) }}
  {{- $themevariant = collections.Merge $themevariant (dict "chroma" $chroma) }}
  {{- $themevariant = collections.Merge $themevariant (dict "chromacontent" $chromacontent) }}
  {{- return $themevariant }}
{{- end }}