#!/bin/sh

src="${SRC:-src}"
dest="${DEST:-public_html}"
template="${TEMPLATE:-index.html.in}"
styles="${STYLESHEET:-stylesheet.css}"
filters="${FILTERS:-filters.sed}"

script="$0"

get() {
	find "$1" -type f -name "*.$2"
}

txt2html() {
	while read -r file; do
		tmphtml="${file%.*}.html"
		sed -Ef "$filters" < "$file" > "$tmphtml"
	done
}

csv2txt() {
	while read -r file; do
		txtfile="${file%.*}.txt"
		column -ts, < "$file" > "$txtfile"
	done
}

build() {
	while read -r file; do
		desthtml="$dest/$(basename "$file")"
		sed -Ee "/include_txt/r $file" -e "/include_txt/d" < "$template" > "$desthtml"
	done
}

sitemap() {
	sitemap="$src/all.txt"
	rm -f "$sitemap"
	touch "$sitemap"
	while read -r file; do
		file="$(basename "$file")"
		echo "[[${file%.txt}]]" >> "$sitemap"
	done
}

mkdir -p "$dest"

get src csv | csv2txt
get src txt | sort | sitemap
get src txt | txt2html
get src html | build

cp "$styles" "$dest"
cp "$script" "$dest/$script.txt"

get src html | xargs rm -r