from config import GRID_WIDTH, GRID_HEIGHT
from DataModels.Road import Road
def movement(environment, x ,y):
    movement = {
        "right": (x + 1, y) if x + 1 < GRID_WIDTH and type(environment[x + 1][y]) == Road else (x, y),
        "left": (x - 1, y) if x - 1 >= 0 and type(environment[x - 1][y]) == Road else (x, y),
        "down": (x, y + 1) if y + 1 < GRID_HEIGHT and type(environment[x][y + 1]) == Road else (x, y),
        "up": (x, y - 1) if y - 1 >= 0 and type(environment[x][y - 1]) == Road else (x, y)
    }

    forbidden_movement = {
        "right": "left",
        "left": "right",
        "up": "down",
        "down": "up"
    }

    return (movement, forbidden_movement)

def check_moves(environment, x,y,direction=None):
    if direction == None:
            return ([dir for dir in movement(environment, x, y)[0] if movement(environment, x,y)[0][dir] != (x,y)])
    return ([dir for dir in movement(environment, x, y)[0] if movement(environment, x,y)[0][dir] != (x,y) and dir != movement(environment,x,y)[1][direction]])