#!/usr/bin/env sh

# The MIT License (MIT)

# Copyright (c) 2015 - 2019 Nimit Kalra <nimit@utexas.edu>

# Permission is hereby granted, free of charge, to any person obtaining a copy
# Of this software and associated documentation files (the "Software"), to deal
# In the Software without restriction, including without limitation the rights
# To use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# Copies of the Software, and to permit persons to whom the Software is
# Furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# Copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

# Setup.
VERSION="0.2.3"

version() {
	printf "git-fire version %s\n" "$VERSION"

	git --version
}

# Helpers.
current_branch() {
	basename "$(git symbolic-ref HEAD)"
}

current_epoch() {
	date +%s
}

user_email() {
	git config user.email
}

new_branch() {
	echo "fire-${1:-$(current_branch)}-$(user_email)-$(current_epoch)"
}

fire() {
	initial_branch="$(current_branch)"

	git checkout -b "$(new_branch)"

	# cd to git root directory
	cd "$(git rev-parse --show-toplevel)"

	git add -A

	if [ -z "$1" ]; then
		message="Fire! Branch $(current_branch)."
	else
		message="$*"
	fi

	git commit -m "$message" --no-verify

	for remote in $(git remote); do
		git push --no-verify --set-upstream "${remote}" "$(current_branch)" || true
	done

  if [ "$(git stash list)" != '' ]; then
	  for sha in $(git rev-list -g stash); do
		  git push --no-verify origin "$sha":refs/heads/"$(current_branch $initial_branch)"-stash-"$sha"
	  done
  fi

	printf "\n\nLeave building!\n"
}

display_help() {
	cat <<-EOF

  usage:
    git fire [options] [COMMAND] [args]

  commands:
    git fire                        Add, commit, and push to remote in case of a fire
    git fire <message>              Execute git fire with <message> for commit message


  options:
    -V, --version                   Output current version of git-fire
    -h, --help                      Display this help information

EOF
	exit 0
}


case $1 in
	-V|--version) version; exit 0 ;;
	-h|--help) display_help; exit 0 ;;
esac

fire "$@"