# present. (More to this later)
# ### 3.2.2 CommandField (type="command").
#
# This field allows us to directly control the linked IoT device by
# sending commands.
# To do this we need to add Commands to the CommandField.
# A command has 1 property:
# - name: The internal name that the specific device uses for this purpose
from filip.semantics.semantics_models import Command
c1 = Command(name="open")
my_outlet.controlCommand.add(c1)
my_floor.hasRoom.add(my_building)
print(my_building.build_context_entity().json(indent=2))
# After the current state was saved. We can interact with the command. It
# offers three functions:
# - c1.send(): Send the command to the device to execute it
# - c1.get_info(): View the result of the executed command
# - c1.get_status(): See the current status of the sent command
# ### 3.2.3 Uniqueness
#
# A property (Command, DeviceAttribute) can only be added to one instance
# A property will add fields to the Fiware instance, as field names need
# to be unique, a name check is made if a new property is added to an
# instance field.
# If a required field of the new property is already existing an error is
# raised
