Car cranks but it won't start unless I crank it for minutes. Almost until battery goes flat.

Hello Car Pros.
I have a Chevy Aveo 2007 that is almost impossible to start in the morning.
I have replaced fuel pump (advised by a mechanic) replaced spark plugs, replaced spark wires, replaced coolant temperature sensor. And it still does the same thing.
After I get it to start, it runs perfectly fine all day, it even starts right away after that first start.
I ckecked the coil pack and it does produce spark (even when I am cranking with no start) I cleaned the injectors, EGR valve, the intake air valve.
I am clueless and so a couple of mechanics.
What else could it be? Any help would be greatly appreciated.