from TractorLoad import TillageUnit
from constants import HORIZONTAL_TILES_NUMBER, VERTICAL_TILES_NUMBER


class Tractor:
    def __init__(self, horizontal_index, vertical_index, hitch, header):
        self.__horizontal_index = horizontal_index
        self.__vertical_index = vertical_index
        self.__hitch = hitch
        self.__header = header
        self.__fuel_tank = 100
        self.__engineWorking = False

    @property
    def horizontal_index(self):
        return self.__horizontal_index

    def __horizontal_index(self, horizontal_index):
        if 1 <= horizontal_index < HORIZONTAL_TILES_NUMBER:
            if self.__engineWorking:
                self.__horizontal_index = horizontal_index

    @property
    def vertical_index(self):
        return self.__vertical_index

    def __vertical_index(self, vertical_index):
        if 1 <= self.__vertical_index < VERTICAL_TILES_NUMBER-1:
            if self.__engineWorking:
                self.__vertical_index = vertical_index

    @property
    def hitch(self):
        return self.__hitch

    @hitch.setter
    def hitch(self, hitch):
        if hitch == "Crop Trailer" or isinstance(hitch, TillageUnit) or hitch == "Nothing":
            self.__hitch = hitch

    @property
    def fuel_tank(self):
        return self.__fuel_tank

    def __fuel_tank(self, fuel_tank):
        if 0 < fuel_tank < 100:
            self.__fuel_tank = fuel_tank

    def fill_tank(self):
        self.__fuel_tank = 100

    def reduce_fuel(self):
        if 0 < self.fuel_tank <= 100:
            self.__fuel_tank = self.__fuel_tank - 0.5
        if self.__fuel_tank <= 0:
            self.__engineWorking = False

    @property
    def header(self):
        return self.__header

    @header.setter
    def header(self, header):
        if header is True or header is False:
            self.__header = header

    @property
    def engineWorking(self):
        return self.__engineWorking

    def turnOnEngine(self):
        if self.__fuel_tank > 0:
            self.__engineWorking = True
        else:
            print("noFuel")

    def turnOffEngine(self):
        self.__engineWorking = False

    def drive(self, direction):
        mRange = 1
        if direction == "UP" and self.vertical_index > 0:
            self.__vertical_index += - mRange
        elif direction == "DOWN" and self.vertical_index < VERTICAL_TILES_NUMBER-1:
            self.__vertical_index += mRange
        elif direction == "RIGHT" and self.horizontal_index < HORIZONTAL_TILES_NUMBER-1:
            self.__horizontal_index += mRange
        elif direction == "LEFT" and self.horizontal_index > 0:
            self.__horizontal_index += -mRange