from constant import width, height, rows, cols

class Stan:
    def __init__(self, row, col, dir):
        self.p = []
        self.a = ""
        self.row = row
        self.col = col
        self.direction = dir
    def __str__(self):
        return f"row: {self.row}, col: {self.col}, direction: {self.direction}"
    def parrent(self, stan, action):
        if(len(self.p) == 0):
            self.p.append(stan)
            self.a = action
    def succ(self, action, board):
        if(action == "up"):
            if(self.direction == "left"):
                if not board.is_rock(max(self.col - 1, 0), self.row):
                    return Stan( self.row , max(self.col - 1, 0), self.direction)
                return Stan(self.row, self.col, self.direction)
            if(self.direction == "up"):
                if not board.is_rock(self.col, max(self.row - 1, 0)):
                    return Stan(max(self.row - 1,0) , self.col, self.direction)
                return Stan(self.row, self.col, self.direction)
            if(self.direction == "right"):
                if not board.is_rock(min(self.col + 1, cols - 1), self.row):
                    return Stan(self.row, min(self.col + 1, cols - 1) , self.direction)
                return Stan(self.row, self.col, self.direction)
            if(self.direction == "down"):
                if not board.is_rock(self.col, min(self.row + 1,rows - 1 )):
                    return Stan(min(self.row + 1,rows - 1 ) , self.col, self.direction)
                return Stan(self.row, self.col, self.direction)
        if(action == "left"):
            if(self.direction == "left"):
                return Stan(self.row , self.col, "down")
            if(self.direction == "up"):
                return Stan(self.row, self.col, "left")
            if(self.direction == "right"):
                return Stan(self.row, self.col, "up")
            if(self.direction == "down"):
                return Stan(self.row, self.col , "right")
        if(action == "right"):
            if(self.direction == "left"):
                return Stan(self.row, self.col, "up")
            if(self.direction == "up"):
                return Stan(self.row, self.col, "right")
            if(self.direction == "right"):
                return Stan(self.row, self.col, "down")
            if(self.direction == "down"):
                return Stan(self.row, self.col,"left")

class Kolejka:
    def __init__(self):
        self.id = 0
        self.len = 0
        self.stany = []

    def dodaj_stan(self, stan):
        self.stany.append(stan)
        self.len += 1
    def usun_stan(self):
        if not self.czy_pusta():
            self.id += 1
            return self.stany[self.id - 1]
        else:
            raise IndexError("Kolejka stanów jest pusta")

    def czy_pusta(self):
        return self.len <= self.id

    def check(self, stan):
        indeks = 0
        for i in self.stany:
            if(stan.direction == i.direction and stan.col == i.col and stan.row == i.row):
                return True
        return False

class Odwiedzone:
    def __init__(self):
        self.stany = []
    def check(self, stan):
        for i in self.stany:
            if(stan.direction == i.direction and stan.col == i.col and stan.row == i.row):
                return True
        return False
    def dodaj_stan(self, stan):
        self.stany.append(stan)