Electrical issue after new clutch

[Marshy88]

Hi all just seeing if anyone has ever had an issue with the following,

i recently had a new clutch and flywheel fitted on my Ford Focus by a so called qualified mechanic but it now has the bonnet warning light on the dash the brake warning light on the dash no alarm and no working air con all at the same time. 

The mechanic also had tried to bridge the wiring to the bonnet latch in the hope to by pass and get the warning off the dash. 

I’m now £700 lighter and the car is constantly proving that it was built on a Friday and don’t want to pay out for an auto sparky just yet so was hoping someone on here may have any idea what to check for.

thanks in advance