# This script will trigger nvm use is there is an .nvm-use file with auto set to true
cdnvm() {
        command cd "$@" || return $?

        upfind () {
                local res=$(ls -f $1 2>/dev/null)

                if [ ! -z $res ]; then
                        echo $res
                        return 0;
                fi

                if [ "$(realpath $(dirname $1))" != "/" ]; then
                        upfind ../$1
                fi
        }

        local foundFile=$(upfind .nvm-use)
        local foundAutoValue;

        if [ -f "$foundFile" ]; then
                #echo found .nvm-use file in: $(realpath $(dirname $foundFile))
                foundAutoValue=$(grep '^auto=' $foundFile | tail -1 | awk -F '=' '{print $2}') 
        else
                return 0;
        fi

        if [ "$foundAutoValue" != "true" ]; then
                #echo .nvm-use auto value was not found or not true
                return 0
        fi

        nvm_path="$(nvm_find_up .nvmrc | command tr -d '\n')"

        # If there are no .nvmrc file, use the default nvm version
        if [[ ! $nvm_path = *[^[:space:]]* ]]; then

                declare default_version
                default_version="$(nvm version default)"

                # If there is no default version, set it to `node`
                # This will use the latest version on your machine
                if [ $default_version = 'N/A' ]; then
                        nvm alias default node
                        default_version=$(nvm version default)
                fi

                # If the current version is not the default version, set it to use the default version
                if [ "$(nvm current)" != "${default_version}" ]; then
                        nvm use default
                fi
        elif [[ -s "${nvm_path}/.nvmrc" && -r "${nvm_path}/.nvmrc" ]]; then
                declare nvm_version
                nvm_version=$(<"${nvm_path}"/.nvmrc)

                declare locally_resolved_nvm_version
                # `nvm ls` will check all locally-available versions
                # If there are multiple matching versions, take the latest one
                # Remove the `->` and `*` characters and spaces
                # `locally_resolved_nvm_version` will be `N/A` if no local versions are found
                locally_resolved_nvm_version=$(nvm ls --no-colors "${nvm_version}" | command tail -1 | command tr -d '\->*' | command tr -d '[:space:]')

                # If it is not already installed, install it
                # `nvm install` will implicitly use the newly-installed version
                if [ "${locally_resolved_nvm_version}" = 'N/A' ]; then
                        nvm install "${nvm_version}";
                elif [ "$(nvm current)" != "${locally_resolved_nvm_version}" ]; then
                        nvm use "${nvm_version}";
                fi
        fi
}

alias cd='cdnvm'
cdnvm "$PWD" || exit