if which fasd >/dev/null; then
    # install fasd hooks and basic aliases in the shell
    eval "$(fasd --init auto)"

    # if there is fzf available use it to search fasd results
    if which fzf >/dev/null; then

        alias v >/dev/null && unalias v
        alias vd >/dev/null && unalias vd
        alias z >/dev/null && unalias z

        # edit given file or search in recently used files
        function v {
            local file
            # if arg1 is a path to existing file then simply open it in the editor
            test -e "$1" && $EDITOR "$@" && return
            # else use fasd and fzf to search for recent files
            file="$(fasd -Rfl "$*" | fzf -1 -0 --no-sort +m)" && $EDITOR "${file}" || $EDITOR "$@"
        }

        # cd into the directory containing a recently used file
        function vd {
            local dir
            local file
            file="$(fasd -Rfl "$*" | fzf -1 -0 --no-sort +m)" && dir=$(dirname "$file") && cd "$dir"
        }

        # cd into given dir or search in recently used dirs
        function z {
            [ $# -eq 1 ] && test -d "$1" && cd "$1" && return
            local dir
            dir="$(fasd -Rdl "$*" | fzf -1 -0 --no-sort +m)" && cd "${dir}" || return 1
        }
    fi
fi