example_project_bcca.py

START_LOCATION = "ENTRANCE"

ENTRANCE_INFO = """The entrance is a small hallway with connections to the BCCA
offices and the main lobby.

You can go to:
- BCCA Offices: To the left is a hallway with offices for BCCA staff on either side.
- Lobby: Heading into the building leads into the main lobby area.
"""

LOBBY_INFO = """There are plenty of chairs and tables around.
There are a few large screen TVs over the tables against the walls.

You can go to:
- Incubator: On one end of lobby is an incubator space with offices.
- Classrooms: The other direction leads to the BCCA classrooms.
- Entrance: There is a double-door opening that leads back to the entrance.
- BCCA Offices: There is a doorway leading into the BCCA offices as you walk towards
  incubator space.
"""

INCUBATOR_INFO = """The incubator space has a small seating area surrounded
by 6 office spaces. All of the office doors are locked.

You can go to:
- Lobby: There are two exits from the incubator space, but they both go to
  the lobby.
"""

CLASSROOMS_INFO = """There is a long hallway separating 4 classrooms with glass,
interior walls. There is a small breakout room separating the two classrooms on
each side. The two classrooms closest to the lobby have an enormous AV setup.
The top of the hallway is lined with a mural describing a student's journey
through BCCA.

You can go to:
- Lobby: The only exit from the classrooms is back into the lobby.
"""

BCCA_OFFICES_INFO = """Along with a couple closets, there are offices for
Nate, Corey, Fernae, and Kagan.

You can go to:
- Lobby: There is a hallway between Nate and Fernae's offices that leads to the lobby.
- Entrance: Between two closets, there is a door leading back to the entrance.
"""


def print_info(location: str) -> None:
    print(f"You are in the {location.title()}!")
    if location == "ENTRANCE":
        print(ENTRANCE_INFO)
    elif location == "LOBBY":
        print(LOBBY_INFO)
    elif location == "INCUBATOR":
        print(INCUBATOR_INFO)
    elif location == "CLASSROOMS":
        print(CLASSROOMS_INFO)
    elif location == "BCCA_OFFICES":
        print(BCCA_OFFICES_INFO)


def is_valid_transition(location: str, destination: str) -> bool:
    if location == "ENTRANCE":
        return destination == "BCCA_OFFICES" or destination == "LOBBY"
    elif location == "LOBBY":
        return (destination == "INCUBATOR" or destination == "CLASSROOMS"
                or destination == "BCCA_OFFICES" or destination == "ENTRANCE")
    elif location == "INCUBATOR":
        return destination == "LOBBY"
    elif location == "CLASSROOMS":
        return destination == "LOBBY"
    elif location == "BCCA_OFFICES":
        return destination == "ENTRANCE" or destination == "LOBBY"
    else:
        return False


def invalid_destination_message(location: str, destination: str) -> str:
    return f"You cannot go to {destination.title()} from {location.title()}."


def input_destination_or_q(location: str) ->  str:
    while True:
        print("Where would you like to go? [q to quit]")
        destination = input("> ").upper()
        if destination == "Q" or is_valid_transition(location, destination):
            return destination
        else:
            print(invalid_destination_message(location, destination))


def main() -> None:
    location = START_LOCATION
    while True:
        print_info(location)
        destination = input_destination_or_q(location)
        if destination == "Q":
            break
        else:
            location = destination


if __name__ == '__main__':
    main()