#! /bin/sh
# This script will compile or run another finishing operation on a document
# It is meant to be run via vim/neovim
# Adapted form the work of Luke Smith (lukesmith.xyz)

# groff-mom files : Compiles via pdfmom to a pdf document
# c files : Compiles via gcc
# config.def.h (-> suckless) recompiles and install the program
# tex files : Compiles via pdflatex (biblatex if needed)

file=$(readlink -f "$1")
dir=$(dirname "$file")
dirname=$(basename "$dir")
base="$(echo "${file%.*}" | awk -F '/' '{printf $NF}')"
shebang=$(sed -n 1p "$file")

sucklesstools="$(ls $XDG_CONFIG_HOME/suckless)"

cd "$dir" || exit

shebangtest()
{
	case "$shebang" in
		\#\!*) "$file" ;;
	esac
}

texcompile() { \
	bibliography="$(cat "$file" | grep '\bibliography')"
	if [ -n "$bibliography" ]; then
		pdflatex --output-directory="$dir" "$base" &&
		bibtex "$base" &&
		pdflatex --output-directory="$dir" "$base" &&
		pdflatex --output-directory="$dir" "$base"
	else
		pdflatex --output-directory="$dir" "$base" &&
		pdflatex --output-directory="$dir" "$base"
	fi
}

s_build(){
	case "$file" in
		*config.def.h) sudo make clean install && rm -f config.h ;;
		*config.h) echo "" && echo "You should build from config.def.h !" ;;
	esac

	exit 0
}

for tool in $sucklesstools; do
	if [ "$tool" = "$dirname" ]; then
		s_build
	fi
done

case "$file" in
	*.c*|.h*) make && ./main ;;
	*.mom) refer -PS -e "$file" | pdfmom > "$base.pdf" ;;
	*.tex) texcompile "$base" ; texclear "$file" ;;
	*.py) python "$file" ;;
	*) shebangtest ;;
esac