#!/bin/bash

set -e

test -f cosmos.conf && . ./cosmos.conf

echo "Fetching any updates from server:"
git pull
echo ""

if [[ -z $1 ]]; then
	deftag=$(basename "$PWD")
else
	deftag="$1"
fi
tagpfx=${tag:="${deftag}"}

last_tag=$(git tag -l "${tagpfx}-*" | sort | tail -1)

echo "Verifying last tag ${last_tag}:"
(git tag -v "${last_tag}" | grep ^gpg:) || true
# again to not mask exit status of git with grep
git tag -v "${last_tag}" >/dev/null 2>&1
echo ""

echo "Differences between tag ${last_tag} and what you are about to sign:"
this_branch=$(git rev-parse --abbrev-ref HEAD)
env PAGER=cat git diff --color "${last_tag}..${this_branch}"

iter=1
ok=
while test -z "$ok"; do
	this_tag=$(date "+${tagpfx}-%Y-%m-%d-v$(printf "%02d" $iter)")
	iter=$((iter + 1))
	case $( (
		echo "${this_tag}"
		echo "${last_tag}"
	) | sort | tail -1) in
	"${last_tag}") ;;

	"${this_tag}")
		ok=yes
		;;
	esac
done

if [[ "${deftag}" != "${tagpfx}" ]]; then
	echo -e "Using new tag \e[94m${this_tag}\e[0m according to pattern in cosmos.conf"
else
	echo -e "Using new tag \e[94m${this_tag}\e[0m"
fi

echo -e "\e[1mONLY SIGN IF YOU APPROVE OF VERIFICATION AND DIFF ABOVE\e[0m"

# GITTAGEXTRA is for putting things like "-u 2117364A"
# shellcheck disable=SC2086
git tag ${GITTAGEXTRA} -m bump. -s "${this_tag}"

git push
git push --tags