A sun-resistant fabric like canvas can be hung by rings on wire to allow you to move the drape for sun or rain protection. The folds must be slightly tilted from one end to the other to allow for rain to be directed off the fabric toward the drain. I would hire a professional for the job.

It is designed with a standard awning with 2 aluminum beams with a pulley guide system. You can see the rope collected in the middle part. The rest of the beams are very similar to those of the awning and also made of aluminium. And they are simply decorative to generate a coherent set.