Contactors

Hi! hopefully someone can help me with this I am trying to create a circuit

diagram for a panel that has a 100a 4 pole contactor in it supplying lighting

which has to be controlled by a photocell for automatic operation an emergency stop

to overide the whole thing but resetable in conjuntion with a selector switch to choose either auto, off or overide can any one advise its for a project i am doing for

a friend