#!/usr/bin/env bash

# general installer for sharkdp's rust based applications

USAGE="Usage: ${0##*/} <app>"
APPS="Apps: bat, hyperfine, hexyl, fd, vivid, pastel, lscolors, diskus"

app=$1

if [[ -z $app || $app == "help" ]]; then
	echo $USAGE >&2
	echo $APPS >&2
  exit 0
fi

if [[ "$app" == "list" ]]; then
	echo $USAGE >&2
  exit 0
fi

if [ ! "$(which $app)" ]; then
  current_version=0.0.0
  echo "$app: not installed"
else
  current_version=$($app --version | grep -oE "[0-9\.]+")
  echo "$app: found $current_version"
fi

latest_version=$(curl -s "https://github.com/sharkdp/$app/releases/latest" | grep -oE '[0-9]+.[0-9\.]+')

if [ "$2" ]; then
  latest_version=$2
fi

if [[ "$current_version" == "$latest_version" ]]; then
  echo "$app: up-to-date"
else
  echo "$app: new version found $latest_version"
  echo "$app: downloading..."

  arch="$(dpkg --print-architecture)"

  curl -fsSLo ${app}_${arch}.deb "https://github.com/sharkdp/$app/releases/download/v$latest_version/${app}_${latest_version}_${arch}.deb"
  sudo dpkg -i ${app}_${arch}.deb
  rm ${app}_${arch}.deb
fi