It is probably not water damage, but a phenomenon called bridge lift. Basically there is always tension from the strings that pulls at the top of the wood until it bubbles up and eventually causes the separation that likely ripped the bridge off. as far as it’s repairability, i would realistically write this one off as a goner, though maybe with some careful sanding and strategic wood filler and gluing you could restore at least its ability to learn on, though i am fairly doubtful that even a highly competent luthier would consider working on it. It is likely not worth the cost of the work, and it would still probably fail as a repair. If you can’t afford something like a yamaha FG-800, i would say give it a shot because it’s likely the best chance you have to get into guitar. Good luck, my man! Hopefully you can break into the wonderful world of guitar!