#!/usr/bin/env sh

mkdir -p _capsule

articles_list=""

current_year=$(date +%Y)
header_body=$(cat _includes/header.gmi)
footer_body=$(cat _includes/footer.gmi)
links_body=$(cat _includes/links.gmi)

for post in $(ls _posts/*.md); do
    article_title=$(lowdown -X title $post)
    article_date=$(lowdown -X date $post | awk '{print $1}')
    article_body=$(lowdown -tgemini $post)

    echo "Rendering post $article_title..."

    gemfile=$post
    gemfile=${gemfile/_posts/_capsule}
    gemfile=${gemfile/.md/.gmi}

    cat _layouts/article.gmi \
        | perl -pe "s|%%header%%|${header_body}|" \
        | perl -pe "s|%%links%%|${links_body}|" \
        | perl -pe "s|%%title%%|${article_title}\n${article_date}\n|" \
        | perl -pe "s|%%body%%|${article_body}|" \
        | perl -pe "s|%%footer%%|${footer_body}|" \
        | perl -pe "s|%%year%%|${current_year}|" \
        > $gemfile

    articles_list="$articles_list=> ${gemfile/_capsule\//} $article_date $article_title\n"
done

drafts_list=""

if [ "${GEMINI_ENV}" != 'production' ]; then
    for post in $(ls _drafts/*.md); do
        article_title=$(lowdown -X title $post)
        article_body=$(lowdown -tgemini $post)

        echo "Rendering draft $article_title..."

        gemfile=$post
        gemfile=${gemfile/_drafts/_capsule}
        gemfile=${gemfile/.md/.gmi}

        cat _layouts/article.gmi \
            | perl -pe "s|%%header%%|${header_body}|" \
            | perl -pe "s|%%links%%|${links_body}|" \
            | perl -pe "s|%%title%%|${article_title}|" \
            | perl -pe "s|%%body%%|${article_body}|" \
            | perl -pe "s|%%footer%%|${footer_body}|" \
            | perl -pe "s|%%year%%|${current_year}|" \
            > $gemfile

        drafts_list="$drafts_list=> ${gemfile/_capsule\//} $article_title\n"
    done
fi

echo "Rendering index..."

index_body=$(lowdown -tgemini index.md)

articles=""
if [ ! -z "$articles_list" ]; then
    articles="## Articles\n\n${articles_list}"
fi

drafts=""
if [ ! -z "$drafts_list" ]; then
    drafts="## Drafts\n\n${drafts_list}"
fi

cat _layouts/home.gmi \
    | perl -pe "s|%%header%%|${header_body}|" \
    | perl -pe "s|%%links%%|${links_body}|" \
    | perl -pe "s|%%body%%|${index_body}|" \
    | perl -pe "s|%%articles%%|${articles}|" \
    | perl -pe "s|%%drafts%%|${drafts}|" \
    | perl -pe "s|%%footer%%|${footer_body}|" \
    | perl -pe "s|%%year%%|${current_year}|" \
    > _capsule/index.gmi

echo "Done"