#!/usr/bin/env bash
# 20260912 - Hyperling
# "Install" script to get this program runnable from anywhere on the system.

## Variables ##

DIR="$(cd "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
PROG="$(basename -- "${BASH_SOURCE[0]}")"
LOCAL=~/bin
GLOBAL=/usr/local/bin
GLOBAL_SRC=/usr/local/src

name_local="prototype.js"
name_short="nomad"
name_long="nomadic-weather"
name_abs="weather-list"

## Functions ##

function usage {
	cat <<- EOF
		$PROG [-h] [-g] [a|l|s] [-r]

		Install $name_local to the system. Can be local, global, or removed.

		Parameters)
		  h) Display this message.
		  g) Install globally ($GLOBAL), otherwise local ($LOCAL).
		  a) Abstract name, unrelated to being nomadic. ($name_abs)
		  l) Long name, the full name of the project. ($name_long)
		  s) Short name, the full name of the project. ($name_short)
		  r) Remove / uninstall the project according to the above flags.

		Examples)
		  - Install to the local user with the abstract name.
		      $PROG
		  - Install to all users with all names.
		      $PROG -alsg
		  - Remove all instances.
		      $PROG -alsr && $PROG -alsrg

		Happy weather watching! :)

		~ Hyperling
	EOF
	exit $1
}

## Parameters ##

while getopts ":gslarh" arg; do
	case $arg in
		g) global="Y" ;;
		s) short="Y" ;;
		l) long="Y" ;;
		a) abstract="Y" ;;
		r) remove="Y" ;;
		h) usage ;;
		*) echo "ERROR: Parameter $OPTARG was not recognized." && usage 1 ;;
	esac
done

## Processing ##

name=""
if [[ "$short" == "Y" ]]; then
	name="$name $name_short"
fi
if [[ "$long" == "Y" ]]; then
	name="$name $name_long"
fi
if [[ "$abstract" == "Y" || ( -z "$short" && -z "$long" ) ]]; then
	name="$name $name_abs"
fi

cmd=""
dir="$LOCAL"
src="$DIR"
if [[ "$global" == "Y" ]]; then
	dir="$GLOBAL"
	cmd="sudo"
	echo "Requesting sudo privileges... "
	sudo echo "Success!"
	mkdir -pv /usr/local/src
	sudo cp -Rv "$DIR" $GLOBAL_SRC/
	src="$GLOBAL_SRC/`basename "$DIR"`"
fi

if [[ -z "$remove" ]]; then
	cmd="$cmd ln -svf $src/$name_local"
else
	cmd="$cmd rm -v"
fi

## Main ##

# Untested
#if [[ "$global" == "Y" && "$remove" == "Y" ]]; then
#	sudo rm -rfv "$src"
#fi

for prog in $name; do
	mkdir -pv "$dir"
	$cmd "$dir/$prog"
done

## Finish ##

echo "Done!"
exit 0