#!/usr/bin/env bash
#
# SPDX-License-Identifier: MIT

# gitlab-ci looks here
[[ ! -d ./public ]] && mkdir ./public

# copy our CSS - <link rel="stylesheet" href="${_CSS}" />
_CSS="mdhtml.css"
cp "./style/${_CSS}" ./public/

# icon
_FAV="favicon.ico"
cp "./style/${_FAV}" ./public/

# ./src/foo.md -> ./public/foo.html
for file in ./src/*.md; do
  _FILE="${file##*/}"
  _HTML="./public/${_FILE%.*}.html"
  echo "Processing $file to $_HTML"

  # metadata for pandoc
  _TITLE=$(grep -m1 "^# " "$file" | sed -r 's/# //')

  # [foo](foo.md) -> [foo](foo.html)
  #  sed -i -r 's/(\[.*?\])\((.*?)\.md\)/\1(\2.html)/' "$file"
  # sed does not support non-greedy (.*?) like perl, we have to hack it
  sed -i -r \
    -e ':loop' \
    -e 's/(\[.*\])\((.*)\.md\)/\1(\2.html)/g' \
    -e 't loop' $file

  pandoc -s \
    -f gfm+gfm_auto_identifiers-ascii_identifiers \
    -t html \
    --template="./style/pandoc_html.tpl" \
    --include-in-header="./style/header_include.html" \
    --include-before-body="./style/body_before.html" \
    --include-after-body="./style/body_after.html" \
    --metadata pagetitle="$_TITLE" \
    --css="${_CSS}" \
    -o "${_HTML}" "$file"
done