Hi, currently having a similar problem with my car, very frustrating i know.
umm.. your rough idle would have made me think timing but since it started running fine after that kinda eliminates that. However you could still check to insure your cam position sensor is tight. First thing i'd check is fuel though. Supply the fuel pump with a 12v source while the car is off and see if it runs. If its working you'll easily hear it.
Hope that helps
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