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Your urine being dark and having an odor of ammonia, especially in the morning and after drinking wine the night before is an indication that you are not getting enough fluids.
You might try increasing your fluid intake during the day. The more water (rather than other beverages) the better. Also, when you drink wine, alternate a glass of water with a glass of wine. Or, drink a large glass of water before going to bed. This may cause you to get up during the night to go to the bathroom, but its better than being dehydrated.
If this does not take care of the problem, you should see your doctor for an exam and some tests.