seymores / gfycatid_ex Goto Github PK

Thought about offering a non-random version? Cause at the moment it's not quite usable for a use case such as gfycat, where you require them to be unique. Since overtime, it's likely to generate more and more of the same (especially if you use a lower number to generate) and you'll have to test against past results. At the moment the user could try and assist it to avoid definite repeats (rand being at the same state as what was generated another time), by exporting rand's state so you can jump to some new state, but that can still have collisions.

Would be nice if there was a variant where you could in addition provide a seed and an index in the permutation. So the seed would control the order of the permutation, and the index will be the unique result at that index. If index exceeds the permutated list return an error (the user can then know they've used up every possible combination of that length and will need to increase the length to retrieve more).

That way if the user increments the index, they're guaranteed a unique result. Which gives them a couple options for how they might want to interact with it. Such as storing the current index and incrementing it. Or mapping some other identifier of theirs to an index. etc.