How do I check to see if a system font is present?

Ideally, I would like to be able to define a font-family like in CSS where I set a list of fonts and it uses the first available. If that isn't possible, but I could check to see if a font is available I could easily set up logic to handle it.

I am aware that I can use web fonts etc. but I would rather pick a font on the system so that it matches the UI. I also don't want to just use the 'system-UI' option because I prefer the light versions.

Not a direct answer, but alternatively you could load the fonts into the project or use sprite fonts.