import time


from source.strategy.strategy import PathFindingStrategy
from source.observer.observer import Observer, Event
from source.classes.cell import Cell
from source.classes.maze import Maze

class MazeSolver:
    def __init__(self, maze: Maze, strategy: PathFindingStrategy, observer: Observer):
        self.maze = maze
        self.strategy = strategy
        self.observer = observer

    def strategyName(self):
        return self.strategy.name

    def setStrategy(self, strategy: PathFindingStrategy):
        self.strategy = strategy

    def solve(self):
        start_time = time.perf_counter()
        path, visited_cells = self.strategy.findPath(self.maze)
        finish_time = time.perf_counter()

        self.observer.update(Event(
            event="path_found",
            maze=self.maze,
            player_position=self.maze.exit,
            path=path
        ))

        return SearchStats(
            timeMs=finish_time - start_time,
            visitedCells=visited_cells,
            pathLength=len(path),
            path=path
        )



class SearchStats:
    """Общая информация о тесте алгоритма"""
    def __init__(self, timeMs: float, visitedCells: int, pathLength: int, path: list[Cell]):
        self.timeMs = timeMs
        self.visitedCells = visitedCells
        self.pathLength = pathLength
        self.path = path