Auto-Brewing Station[Vanila McPe]

Hey, I build a Auto-Brewing station were you can make potions just by pressure of a button.

The machine is "smart" and can help you with some potions that you don't know, for example (select NightVision potion and select glowstone,[*you can't add glowstone in NightVision potion], the machine will auto swich to redstone 

*P.S. if you see all those furnaces on top of the hopers, this is for not causing any lag(I used a lot of hopers). Tip:a hoper will always check the block above for items, but if the block above is a furnace will need to check just 3 slots and reduce the lag(useful in BIG creations)