On that Comac video
Video Gallery_Commercial Aircraft Corporation of China, Ltd. it looks like a A320 copy. Since they produce the Airbus wing in China it is not far fetched. Can someone check a bit on the details?
Airbus A320 family is a 1980 design. So would be interesting what hardware COMAC uses for the fly by wire systems. Their own software and hardware development on new processors, which are today far advanced compared to what was available in the 1980s. Or did the copy the old Airbus Hardware and use the Airbus software.
Some people from Airbus should be in the know on this.