Behavior patterns for the Mob of me

I would like if the mob of me would have behavior similar to villagers.

Day/night:
Since this is a full Minecraft experience it will surely contain a daylight cycle. During night the mob of me will seek the nearest bed accessible indoors above all else. If it cannot find an indoors bed it will find the safest one away from lava/tnt/other threats.

Daytime:
During the day I would like if the mob of me had work like villagers do. There is theories out there that the player is not the same species as the villager, though the share similarities. That being said what if you could pick the profession you wanted your mob of me to do. You could set him up to him cobblestone or farm wheat and sugar cane and store them in a barrel, for example. This would make building farms a lot easier, and make the mob a ton more useful and versatile.

I would also like to be able to give them weapons and have them attack hostile mobs. So you can bring an army to the adventures or keep your precious muddy pigs safe from all danger.