#!/usr/bin/env bash
set -euo pipefail

export SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
cd "$SCRIPT_DIR"

command_exists () {
    type "$1" &> /dev/null
}

echoerr() { 
	echo "$@" 1>&2
}

sha256() {
	if command_exists sha256sum; then
  		sha256sum
  	elif command_exists shasum; then
  		shasum -a 256
  	elif command_exists openssl; then
  		openssl dgst -sha256
  	else
  		echoerr "Unable to calculate sha256!"
  		exit 43
	fi
}

header() {
	echo "$*"
	echo
}

header "git pull"
#git pull

version="$(grep VERSION "${SCRIPT_DIR}/navi" | grep -Eo '[0-9\.]+')"
tag="v${version}"
tar="https://github.com/denisidoro/navi/archive/${tag}.tar.gz"
formula="/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/navi.rb"

header "Attempting to release version ${tag}..."
read -p "Press enter to continue"

header "git tag"
#git tag -a "$tag" -m "$tag"

header "git push"
#git push --follow-tags

header "rm formula"
rm "$formula" || true

header "tar sha256"
sha="$(curl -sL "$tar" | sha256 | awk '{print $1}')"

header "output"
echo "  url \"${tar}\""
echo "  sha256 \"${sha}\""