I would rearchitect this whole thing. Simply add a shuffledDeck() method to your provider that returns a freshly shuffled array. Fisher-Yates is the most commonly used algorithm for this: I think there is another slightly faster variant out there, but you probably won’t notice the difference.
Once you have received the shuffled deck in your page, all you have to deal with in the page is a single number indicating how far down the deck you have drawn. getRandom() and all its needless looping can be safely tossed in the bin and replaced with a single increment of the current deck position.