#!/usr/bin/env bash

# Copyright (c) 2021 by Apex.AI Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0

# This script prepares the commit messages to include
# the issued ID at the beginning of the message.

branch_name=$(git rev-parse --abbrev-ref HEAD)

if [[ "$branch_name" =~ ^iox-#[0-9]+ ]]; then
    branch_name="$(echo "$branch_name" | grep -Eo 'iox-#[0-9]+')"
else
    echo "Warning: The branch name doesn't follow the convention of 'iox-#ISSUE_NUMBER'."
    echo "Commit message won't be autoformatted."
    exit 0
fi

commit_msg=$(cat $1)
if [[ $commit_msg =~ ^iox-#[0-9]+ ]]; then
    commit_msg="$(echo "$commit_msg" | grep -Eo 'iox-#[0-9]+')"
    if [[ "$commit_msg" != "$branch_name" ]]; then
        echo "Warning: Commit message ticket number does not fit to branch ticket number: $commit_msg."
        echo "Is this on purpose?"
        echo "Commit message will not be autoformatted."
        exit 0
    fi
else
    echo "Info: Commit message does not start with issue number: $commit_msg."
    echo "Commit message will be autoformatted."
    echo -e "$branch_name $(cat $1)" > $1
fi