{{ define "main" }}
    <article>
        <h1>{{ .Title }}</h1>
        <h4>{{ .Params.author }}</h4>
        <h6>{{ .Date | time.Format ":date_full" }}</h6>
        {{ if isset .Params "image" }}
        <img src="{{ .Params.image }}" alt="Book cover of the book {{ .Title }}" />
        {{ end }}
        {{ if isset .Params "amazon" }}
        <p>
            <a href="{{ .Params.amazon }}" target="_blank">amazon</a>
        </p>
        {{ end }}
        <div>
            <p>Rating: </p>
            {{ if isset .Params "rating" }}
            {{ $rating := .Params.rating }}
            {{ range $i, $num := (seq $rating) }}
            ⭐
            {{ end }}
            {{ else }}
                <p>N/A</p>
            {{ end }}
        </div>
    </article>
{{ end }}