#!/bin/sh

# This script will compile or run another finishing operation on a document. I
# have this script run via vim.
#
# Compiles .tex. groff (.mom, .ms), .rmd, .md, .org.  Opens .sent files as sent
# presentations. Runs scripts based on extension or shebang.
#
# Note that .tex files which you wish to compile with XeLaTeX should have the
# string "xelatex" somewhere in a comment/command in the first 5 lines.

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

cd "$dir" || exit 1

textype() { \
        textarget="$(getcomproot "$file" || echo "$file")"
    echo "$textarget"
    command="pdflatex"
    ( head -n5 "$textarget" | grep -qi 'xelatex' ) && command="xelatex"
    $command --output-directory="${textarget%/*}" "${textarget%.*}"
    grep -qi addbibresource "$textarget" &&
    biber --input-directory "${textarget%/*}" "${textarget%.*}" &&
    $command --output-directory="${textarget%/*}" "${textarget%.*}" &&
    $command --output-directory="${textarget%/*}" "${textarget%.*}"
}

case "$ext" in
        # Try to keep these cases in alphabetical order.
    [0-9]) preconv "$file" | refer -PS -e | groff -mandoc -T pdf > "$base".pdf ;;
    c) cc "$file" -o "$base" && "$base" ;;
    cpp) g++ "$file" -o "$base" && "$base" ;;
    cs) mcs "$file" && mono "$base".exe ;;
    go) go run "$file" ;;
    h) sudo make install ;;
    java) javac -d classes "$file" && java -cp classes "${1%.*}" ;;
    m) octave "$file" ;;
    md)	if  [ -x "$(command -v lowdown)" ]; then
            lowdown --parse-no-intraemph "$file" -Tms | groff -mpdfmark -ms -kept -T pdf > "$base".pdf
        elif [ -x "$(command -v groffdown)" ]; then
            groffdown -i "$file" | groff -T pdf > "$base".pdf
        else
            pandoc -t ms --highlight-style=kate -s -o "$base".pdf "$file"
        fi ; ;;
    mom) preconv "$file" | refer -PS -e | groff -mom -kept -T pdf > "$base".pdf ;;
    ms) preconv "$file" | refer -PS -e | groff -me -ms -kept -T pdf > "$base".pdf ;;
    org) emacs "$file" --batch -u "$USER" -f org-latex-export-to-pdf ;;
    py) python "$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 "$file" ;;
    *) sed -n '/^#!/s/^#!//p; q' "$file" | xargs -r -I % "$file" ;;
esac
