game.presenter.ts

import { IGamePresenter, Input } from "../ports/game-presenter.port";

export class GamePresenter implements IGamePresenter {
  format(input: Input) {
    const moves = input.history.map((_, move: number) => {
      return {
        move,
        description: move > 0 ? "Go to move #" + move : "Go to game start",
      };
    });

    const status = input.winner
      ? input.winner === "draw"
        ? "Draw"
        : "Winner: " + input.winner
      : "Next player: " + (input.xIsNext ? "X" : "O");

    return {
      moves,
      status,
      squares: input.history[input.step],
    };
  }
}