#!/usr/bin/env python
# coding: utf-8

# In[ ]:


from typing import List, Optional, Tuple
from modelsCell import Cell

class Maze:
    """Модель лабиринта."""

    def __init__(self, width: int = 0, height: int = 0):
        self.width = width
        self.height = height
        self._cells: List[List[Optional[Cell]]] = [
            [None for _ in range(width)] for _ in range(height)
        ]
        self.start_cell: Optional[Cell] = None
        self.exit_cell: Optional[Cell] = None

    def set_cell(self, x: int, y: int, cell: Cell) -> None:
        """Установить клетку."""
        if 0 <= x < self.width and 0 <= y < self.height:
            self._cells[y][x] = cell

    def get_cell(self, x: int, y: int) -> Optional[Cell]:
        """Получить клетку по координатам."""
        if 0 <= x < self.width and 0 <= y < self.height:
            return self._cells[y][x]
        return None

    def get_neighbors(self, cell: Cell) -> List[Cell]:
        """Получить проходимых соседей клетки (вверх, вниз, влево, вправо)."""
        neighbors = []
        directions = [(0, -1), (0, 1), (-1, 0), (1, 0)]  # вверх, вниз, влево, вправо

        for dx, dy in directions:
            nx, ny = cell.x + dx, cell.y + dy
            neighbor = self.get_cell(nx, ny)
            if neighbor and neighbor.is_passable():
                neighbors.append(neighbor)

        return neighbors

    def get_all_cells(self) -> List[Cell]:
        """Получить все клетки лабиринта."""
        cells = []
        for y in range(self.height):
            for x in range(self.width):
                cell = self.get_cell(x, y)
                if cell:
                    cells.append(cell)
        return cells