{{ define "main" }}
<header>
    <a href={{ "" | relURL }} class=title><p class=site-title>{{ .Site.Title }}</p></a>
    <nav>{{ partial "nav.html" . }}</nav>
</header>

<main>
    {{ if .Data.Singular }}
        <h3 style="margin-bottom:0">Filtering for "{{ .Title }}"</h3>
        <small><a href={{ "blog" | relURL }}>Remove filter</a></small>
    {{ end }}

    {{ $allPosts := where .Site.RegularPages "Type" "eq" "posts" }}
    {{ $excludePosts := where $allPosts "Params.categories" "intersect" (slice "1") }}
    {{ $postPages := ($allPosts | complement $excludePosts) }}

    <ul class=blog-posts>
        {{ $currentYear := 0 }}
        {{ range $postPages }}
            {{ $year := .Date.Year }}
            {{ if ne $year $currentYear }}
                <h3>{{ $year }}</h3>
                {{ $currentYear = $year }}
            {{ end }}
            <li>
                <time datetime={{ .Date.Format "2006-01-02" }} pubdate>{{ .Date.Format "2006-01-02" }}</time>
                <a href={{ .Permalink }}>{{ .Title }}</a>
            </li>
        {{ else }}
            <li>No posts yet</li>
        {{ end }}
    </ul>

    {{ if not .Data.Singular }}
        <footer>
            <nav class=tags>
                {{ range .Site.Taxonomies.tags }}
                    <a href={{ .Page.Permalink }}>#{{ .Page.Title }}</a>
                {{ end }}
            </nav>
        </footer>
    {{ end }}
</main>
{{ end }}