#!/bin/ksh

# This script will compile or run another finishing operation on a document. I
# have this script run via vim/emacs.
#
# tex files: Compiles to pdf, including bibliography if necessary
# md files: Compiles to pdf via pandoc
# config.h files: (For suckless utils) recompiles and installs program.
# all others: run `sent` to show a presentation

oridir=$(pwd)

file=$(readlink -f "$1")
dir=$(dirname "$file")
dirname=$(echo "$dir" | sed "s|/.*/||g")
base="${file%.*}"
shebang=$(sed -n 1p $file)

cd $dir
# && mv "$base".pdf "$dir"/pdfs 


shebangtest() {
	case "$shebang" in
		\#\!*) time "$file" ;;
		*) sent "$file" 2>/dev/null & ;;
	esac
}

javarun() {
	#probably will forever be a work in progress because I dont ever plan on using this abomination of a language again.
	#that means I cant test it. 
        classname=$(grep "class " "$file" | sed "s/public class //g; s/class //g; s/class//g; s/{//g;1q")
        javac "$file"
        java "$classname"
}

lexer() {
	lex "$file"
	c mk lex.yy.c && mv lex.yy "$base" && rm lex.yy.c
}

case "$file" in
	*\.rmd) echo "require(rmarkdown); render('$file')" | R --vanilla && mv "$base".pdf "$dir"/pdfs ;;
	*\.ms) groff "$file" -ms -eRt -T pdf > "$base".pdf ;;
	*\.md) pandoc "$file" --pdf-engine=xelatex -o "$base".pdf ;;
	*config.h) doas make clean install ;;
	*\.c) c run "$file" ;;
	*\.cpp) c -c clang++ run "$file" ;;
	*\.cc) c -c clang++ run "$file" ;;
	*\.l) lexer ;;
	*\.zig) time zig run "$file" ;;
	*\.s) as -o "$base".o "$file" && ld -o "$base" "$base".o && time "$base" ;;
	*\.java) time javarun ;;
	*\.hs) ghc "$file" && time "$base" ;;
	*\.py) time python "$file" ;;
	*\.go) time go build; strip "$dir/$dirname"; "$dir/$dirname" ;;



	*) shebangtest ;;

esac
cd $oridir