#!/usr/bin/env bash

doCheckStatusHere() {
    GIT_STATUS=$(echo $?)

    if [[ $GIT_STATUS != "0" ]]; then
        echo "error: Failed to run because it exited with a non-zero code."
        exit 1
    else
        return 0
    fi
}

if [[ $1 != "" && $2 == "" ]]; then
    OLD_BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD)
    NEW_BRANCH_NAME=$1

    # we're gonna do some error handling here
    git status>>/dev/null
    doCheckStatusHere

    git branch -m $NEW_BRANCH_NAME
    git push -u origin $NEW_BRANCH_NAME
    echo "info: I didn't delete the old branch name, just in case you need it."
    echo "info: To delete the old branch both locally and in remote, run the following command:"
    echo "info:    git branch --d $OLD_BRANCH_NAME && git push origin :$OLD_BRANCH_NAME "
    exit
elif [[ $GIT_STATUS == "0" ]] && [[ $1 != "" && $2 != "" ]]; then
    echo $1 && echo $2
    exit
elif [[ $GIT_STATUS != "1" ]]; then
    echo "error: Is this an git repository? I doubt." && exit 1
else
    echo "Usage: ${0} <new-branch-name> [target-branch-optionally-to-rename"
fi