#!/bin/bash

git-setup-upstream(){

    if [[ $# -ne 0 ]]; then
        echo "Usage: just run inside a bbgithub repo."
        return
    fi

    st=$(git status)
    if [[ $? -ne 0 ]]; then
        echo "Looks this is not a git repo."
        return
    fi
    
    us=$(git remote get-url upstream 2> /dev/null)
    if [[ $? -eq 0 ]]; then
        echo "Upstream already exist as $us."
        return
    fi

    url=$(git remote get-url origin)
    if [[ $? -ne 0 ]]; then
        echo "Origin URL is unknown."
        return
    fi
        
    re="^(.*)[/:]([^/:]*)/(.*)$" 
    if [[ $url =~ $re ]]; then
        prefix=${BASH_REMATCH[1]}
        org=${BASH_REMATCH[2]}
        repo=${BASH_REMATCH[3]}
    else
        echo "Failed to pars the repo URL."
        return
    fi

    upstream_repo=bbgithub:$org/$repo
    origin_repo=bbgithub:vkhachatrya5/$repo
    
    git remote rm origin
    echo "Setting origin=$origin_repo"
    git remote add origin $origin_repo
    echo "Setting upstream=$upstream_repo"
    git remote add upstream $upstream_repo
    git remote -v
}

git-setup-upstream