{{- $pctx := . -}}
{{- if .IsHome -}}{{ $pctx = .Site }}{{- end -}}

{{- $pages := slice -}}
{{- if $.IsHome -}}
    {{- $pages = where $pctx.RegularPages.ByDate.Reverse "Type" "in" site.Params.mainSections -}}
{{- else if $.IsSection -}}
    {{- $pages = $pctx.RegularPages.ByDate.Reverse -}}
{{- else -}}
    {{- $pages = $pctx.Pages -}}
{{- end -}}

{{- $limit := site.Params.feedSize | default 25 -}}
{{- $pages = $pages | first $limit -}}

{{- safeHTML "<?xml version=\"1.0\" encoding=\"utf-8\" ?>" }}
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:media="http://search.yahoo.com/mrss/" xml:lang="{{ site.LanguageCode }}">
    {{ printf `<title type="html"><![CDATA[%s]]></title>` site.Title | safeHTML }}
    {{ with site.Params.description }}{{ printf `<subtitle type="html"><![CDATA[%s]]></subtitle>` . | safeHTML }}{{ end }}
    {{- $output_formats := .OutputFormats }}
    {{- range $output_formats -}}
    {{- $rel := (or (and (eq "atom" (.Name | lower)) "self") "alternate") -}}
    {{- with $output_formats.Get .Name }}
    {{ printf `<link href=%q rel=%q type=%q title=%q />` .Permalink $rel .MediaType.Type .Name | safeHTML }}
    {{- end -}}
    {{- end }}
    {{ $logo := resources.Get (site.Params.assets.logo | default "/img/open-graph-logo.png") }}{{ $logo = $logo.Resize "96x96" }}<icon>{{ $logo.Permalink | absURL }}</icon>
    <logo>{{ $logo.Permalink | absURL }}</logo>
    {{ with site.Author.name }}<author>
        {{ printf `<name type="html"><![CDATA[%s]]></name>` . | safeHTML }}
        {{ with site.Author.email }}<email>{{ . | html }}</email>{{ end }}
    </author>{{ end }}
    {{ with site.Params.Copyright }}
    {{- $copyright := replace . "{year}" now.Year -}}
    {{- $copyright = replace $copyright "&copy;" "©" }}<rights>{{ $copyright | plainify }}</rights>{{ end }}
    <generator uri="https://gohugo.io" version="{{ hugo.Version }}">Hugo</generator>
    {{ if not site.LastChange.IsZero }}<updated>{{ site.LastChange.UTC.Format site.Params.dateFormatFeed }}</updated>{{ end }}
    {{ $uuid := sha1 (site.BaseURL | absURL) }}<id>urn:uuid:{{ substr $uuid 0 8 }}-{{ substr $uuid 8 4 }}-5{{ substr $uuid 13 3 }}-{{ substr $uuid 16 1 }}9{{ substr $uuid 17 2 }}-{{ substr $uuid 21 12 }}</id>
    {{- range $pages }}
    <entry>
        {{- $url := .Permalink | absURL }}{{ $uuid := sha1 (.Permalink | absURL) }}{{ $page := . }}
        <category term="{{ .Section }}" />
        {{ range (.GetTerms "tags") }}<category term="{{ .LinkTitle }}" />{{ end }}
        <link rel="alternate" type="type/html" href="{{ $url }}?utm_source=atom_feed" />
        {{ printf `<title type="html"><![CDATA[%s]]></title>` .Title | safeHTML }}
        {{/* rel=related: See https://validator.w3.org/feed/docs/atom.html#link */}}
        {{- range first 5 (site.RegularPages.Related .) }}
        <link href="{{ .Permalink }}?utm_source=atom_feed" rel="related" type="text/html" title="{{ .Title }}" />
        {{- end }}
        <published>{{ (.PublishDate.Format site.Params.dateFormatFeed) | html }}</published>
        {{ if ne .Date .Lastmod }}<updated>{{ .Lastmod.UTC.Format site.Params.dateFormatFeed  }}</updated>{{ end }}
        <id>urn:uuid:{{ substr $uuid 0 8 }}-{{ substr $uuid 8 4 }}-5{{ substr $uuid 13 3 }}-{{ substr $uuid 16 1 }}9{{ substr $uuid 17 2 }}-{{ substr $uuid 21 12 }}</id>
        {{ if .Params.author }}
            {{- $author_type := (printf "%T" .Params.author) }}
            {{- if eq $author_type "string" }}
                <author>
                    <name>{{ .Params.author }}</name>
                </author>
            {{- else if eq $author_type "[]string" }}
                {{ range .Params.author }}
                    <author>
                        <name>{{ .Name }}</name>
                    </author>
                {{ end }}
            {{- end }}
        {{ end }}
        {{ printf `<summary type="html"><![CDATA[%s]]></summary>` .Summary | safeHTML }}
    </entry>
    {{- end }}
</feed>