#!/usr/bin/env bash

function slugify(){
    gsed 's/[^a-zA-Z0-9_-]/-/g' | tr '[:upper:]' '[:lower:]'
}

function derive-or-guess__remote_name_from_possibly_opaque_data() {
    gsed 's/[^a-zA-Z0-9._]/ /g' | gawk '{ print $NF }'
}
function err() {
    1>&2 echo -e "\e[1;38;5;196mERROR: \e[1;38;5;220m${@}\e[0m"
    exit 27
}

ipt=$(echo -n "${@}" | slugify)
here="$(pwd)"
fallback=$(pwd | gsed "s,/Users/${USER}/,,g" | slugify)
if [ -z "$ipt" ]; then
    ipt="${fallback}"
fi

name=$(echo -n "${ipt}" | slugify)
if [ -z "${name}" ]; then
    err "please provide a name for the local git-remote"
fi

GITROOT="${here}/.git"
if [ ! -e "${GITROOT}" ]; then
    err "this command MUST only be executed at the root-level of a non-bare git-repo"
fi

set -ex

local_remoteish_path="${HOME}/projects/.gitrepos/${name}.git"
if [ ! -e "${local_remoteish_path}" ]; then
    git init --bare "${local_remoteish_path}"
fi

fallback_remote_name=$(echo -n "${ipt}" | derive-or-guess__remote_name_from_possibly_opaque_data)
if [ -z "${fallback_remote_name}" ]; then
    err "could not derive-or-guess remote name from '${ipt}'"
fi
remote_name=${fallback_remote_name}
remote="file://${local_remoteish_path}"
if ! 2>/dev/null git remote show -n "${remote_name}"; then
    git remote add "${remote_name}" "${remote}"
    git push -u "${remote_name}" --mirror
else

    git remote add "${fallback_remote_name}" "${remote}"
    git push -u "${remote}" --mirror
fi