#!/bin/sh

# script to compile some document types

[ -z "$1" ] && { echo "Error: Usage: compile [filename]"; exit 1; }

file=$(readlink -f "$1")
dir=${file%/*}
base="${file%.*}"
ext="${file##*.}"

choosepandoc() {
    [ -z "$template" ] && template="$(ls $HOME/.config/setup/templates/pandoc/* | \
        sed 's/.*\///g' | dmenu -i -l 30 -p "choose pandoc template: ")"
    [ -z "$newext" ] && newext="$(echo "$template" | sed 's/.*\.//; s/latex/pdf/;')"
}

textype() { \
	command="pdflatex --shell-escape"
	( head -n5 "$file" | grep -qi 'xelatex' ) && command="xelatex"
	( head -n5 "$file" | grep -qi 'lualatex' ) && command="lualatex"
	$command --output-directory="$dir" "$base" &&
	grep -qi addbibresource "$file" &&
	biber --input-directory "$dir" "$base" &&
	$command --output-directory="$dir" "$base" &&
	$command --output-directory="$dir" "$base"
}

case "$ext" in
    ms) preconv "$file" |  groff -"$ext" -dpaper=a4 -P -pa4 -T pdf > "$base.pdf" && pkill -HUP mupdf;;
    md) choosepandoc; pandoc -V "fontsize=16pt" -s "$file" --template="$HOME/.config/setup/templates/pandoc/$template" -V "fontsize=16pt" -o "$base.$newext"; pkill -HUP mupdf;;
    rmd) pandoc -s "$file" --template="$HOME/.config/setup/templates/pandoc/german.latex" -o "$base.pdf"; pkill -HUP mupdf;;
	py) python "$file" ;;
	[rR]md) Rscript -e "rmarkdown::render('$file', quiet=TRUE)" ;;
	rs) cargo build ;;
	sass) sassc -a "$file" "$base.css" ;;
	scad) openscad -o "$base".stl "$file" ;;
	sent) setsid -f sent "$file" 2>/dev/null ;;
	tex) textype "$file"; pkill -HUP mupdf ;;
    *) echo "Error: unknown file extension '$ext'"; exit 1;#;
esac