#!/usr/bin/env zsh
# SPDX-License-Identifier: MIT
# Copyright (c) 2025 Julian Prein
#
# Rename a branch locally and on a given remote.

emulate -L zsh -o err_return -o no_unset

if (( # < 2 || # > 3 )); then
	printf >&2 "Usage: %s OLD NEW [REMOTE]\n" "${0:t}"
	return 1
fi

local old new remote
old="$1"
new="$2"
remote="${3:-origin}"

if ! git remote -v | awk '{ print $1 }' | uniq | grep -q "$remote"; then
	printf >&2 "Remote '%s' does not exist\n" "$remote"
	return 1
fi

git checkout-worktree "$old" <<EOF
git branch -m "$new" && git push -u && git push -d "$remote" "$old"
EOF