bash logic inside command substitution

I have a little banner that I display at login

fignow() { figlet -w $(tput cols) $(date +"%b %d, Week %V"); figlet -w $(tput cols) -f univers $(date +"%H:%M"); }

This works fine if the additional fonts are installed to get univers, but that's not part of the default installation, so I can do the following:

fignow() { figlet -w $(tput cols) $(date +"%b %d, Week %V"); if [ -f /usr/share/figlet/univers.flf ]; then figlet -w $(tput cols) -f univers $(date +"%H:%M"); else figlet -w $(tput cols) $(date +"%H:%M"); fi; }

This also works fine, but I was curious if the if/else/fi could be removed and the logic could be done inside the command itself, i.e. something like:

fignow() { figlet -w $(tput cols) $(date +"%b %d, Week %V"); figlet -w $(tput cols) -f $(use-univers-or-failback-to-standard.flf-if-univers.flf-is-not-available) $(date +"%H:%M"); }

Is something like that possible?

I suggest to use figlist to avoid hardcoding the themes path:

figlet -w "$(tput cols)" -f "$((figlist | /bin/grep -hw universe) || echo "standard")" "foo"