import random
import copy
import time
import os

os.system("cls")


class State(object):
    def __init__(self, depth: int, width: int, coords=None):
        # Coords: tuple of ints or list of tuple of ints
        self.width = width
        self.depth = depth

        self.board = [[0 for i in range(width)] for j in range(depth)]
        if coords is None:
            pass
        elif isinstance(coords, tuple):
            x, y = coords
            self.board[x][y] = 1
        elif isinstance(coords, list):
            for pair in coords:
                x, y = pair
                self.board[x][y] = 1
        elif coords == "random":
            self.randomBoard()
        else:
            raise Exception(
                "No proper coords provided. Try a tuple of ints or a list of tuple of ints"
            )

    def randomBoard(self):
        for idx, i in enumerate(self.board):
            for jdx, j in enumerate(i):
                if random.randint(1, 2) == 1:
                    self.board[idx][jdx] = 1
                else:
                    self.board[idx][jdx] = 0

    def render(self):
        print("-" * (self.width + 2))
        for i in self.board:
            print(
                "|"
                + "".join(str(k) for k in ([" " if j == 0 else "*" for j in i]))
                + "|"
            )
        print("-" * (self.width + 2))

    def step(self):
        boardcopy = copy.deepcopy(self.board)
        for rowidx, row in enumerate(self.board):
            for elemidx, elem in enumerate(row):
                live_neighbours = self.checkNeighbours(boardcopy, rowidx, elemidx)
                if self.board[rowidx][elemidx] == 1:
                    if live_neighbours == 2 or live_neighbours == 3:
                        pass
                    else:
                        self.board[rowidx][elemidx] = 0
                else:
                    if live_neighbours == 3:
                        self.board[rowidx][elemidx] = 1

    def checkNeighbours(self, board, rowindex, columnindex, neighbourhood="moore"):
        alive = 0
        if rowindex != 0:
            if board[rowindex - 1][columnindex] == 1:
                alive += 1
        if rowindex < self.depth - 1:
            if board[rowindex + 1][columnindex] == 1:
                alive += 1
        if columnindex != 0:
            if board[rowindex][columnindex - 1] == 1:
                alive += 1
        if columnindex < self.width - 1:
            if board[rowindex][columnindex + 1] == 1:
                alive += 1
        if neighbourhood == "moore":
            if rowindex != 0 and columnindex != 0:
                if board[rowindex - 1][columnindex - 1] == 1:
                    alive += 1
            if rowindex < self.depth - 1 and columnindex < self.width - 1:
                if board[rowindex + 1][columnindex + 1] == 1:
                    alive += 1
            if rowindex != 0 and columnindex < self.width - 1:
                if board[rowindex - 1][columnindex + 1] == 1:
                    alive += 1
            if rowindex < self.depth - 1 and columnindex != 0:
                if board[rowindex + 1][columnindex - 1] == 1:
                    alive += 1
        return alive


def main():
    state = State(20, 50, "random")
    state.render()
    for i in range(100):
        time.sleep(0.2)
        os.system("clear")
        state.step()
        state.render()


if __name__ == "__main__":
    main()