package app.playmancala.game;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import app.playmancala.bot.BotSettings;
import app.playmancala.engine.MancalaGame;
import app.playmancala.model.GameClock;
import app.playmancala.model.GameUsersConnectionInfo;
import app.playmancala.model.PlayerSummary;

// A live game and the server-side state around it. Only touched on the game loop.
public class BackendGame {
    public final String id;
    public final MancalaGame mancalaGame;
    public GameUsersConnectionInfo gameUsersConnectionInfo;
    // Users watching right now.
    public final List<String> spectatorIds = new ArrayList<>();
    // Everyone who watched at some point, and the most at once.
    public final List<String> allSpectatorIds;
    public int peakSpectators;
    // Keyed by user id, captured when the game is created.
    public final Map<String, PlayerSummary> players;
    public final long startedAt;
    // Time of each move, aligned with mancalaGame.history.
    public final List<Long> moveTimes;
    public GameClock clock;
    // The mover's clock after each move, aligned with mancalaGame.history; null for moves made before the game clock.
    public final List<Long> moveRemainingMs;
    // How the bot plays in a game against the bot; null in games between people.
    public final BotSettings bot;

    public BackendGame(MancalaGame mancalaGame, GameUsersConnectionInfo gameUsersConnectionInfo,
            List<String> allSpectatorIds, int peakSpectators, Map<String, PlayerSummary> players, long startedAt,
            List<Long> moveTimes, GameClock clock, List<Long> moveRemainingMs, BotSettings bot) {
        this.id = mancalaGame.getId();
        this.mancalaGame = mancalaGame;
        this.gameUsersConnectionInfo = gameUsersConnectionInfo;
        this.allSpectatorIds = new ArrayList<>(allSpectatorIds);
        this.peakSpectators = peakSpectators;
        this.players = Map.copyOf(players);
        this.startedAt = startedAt;
        this.moveTimes = new ArrayList<>(moveTimes);
        this.clock = clock;
        this.moveRemainingMs = new ArrayList<>(moveRemainingMs);
        this.bot = bot;
    }

    public boolean isBotTurn() {
        return bot != null && bot.botId().equals(mancalaGame.getTurnPlayerId());
    }

    public PlayerSummary player(String userId) {
        PlayerSummary player = players.get(userId);
        return player != null ? player : PlayerSummary.unknown(userId);
    }

    public boolean isPlayer(String userId) {
        return mancalaGame.getPlayer1Id().equals(userId) || mancalaGame.getPlayer2Id().equals(userId);
    }

    public String opponentOf(String userId) {
        return userId.equals(mancalaGame.getPlayer1Id()) ? mancalaGame.getPlayer2Id() : mancalaGame.getPlayer1Id();
    }
}