/*
 * 本文件由 autostore-1.0-SNAPSHOT.jar 反编译并整理而来（CFR 0.152），
 * 混淆名已替换为 Minecraft 1.21.4 Yarn 可读映射，并补充中文注释。
 */
package autostore.client.controller;

import autostore.client.bridge.BaritoneBridge;
import autostore.client.config.ExpansionConfig;
import autostore.client.monitor.SubtitleChatMonitor;
import autostore.client.planner.ExpansionPlanner;
import autostore.client.territory.ChunkPos;
import autostore.client.territory.TerritoryDataService;
import autostore.client.territory.TerritoryModel;
import autostore.client.territory.TerritoryState;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Deque;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.util.Hand;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.entity.player.PlayerInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.util.math.BlockPos;
import net.minecraft.client.MinecraftClient;
import net.minecraft.component.DataComponentTypes;

@Environment(value=EnvType.CLIENT)
/**
 * 自动扩地控制器：扩地任务的核心状态机。
 *
 * <p>工作流程：规划（PLANNING）→ 寻路（PATHING）→ 等待开垦（WAITING）→ 成功/失败（SUCCESS/FAIL）→ 下一个目标（NEXT）→ 完成（COMPLETE）。
 * 每帧由 {@link #tick()} 驱动，通过 Baritone 自动寻路到目标区块，
 * 并监听聊天/字幕消息判断开垦是否成功。支持自动进食、超时重试、手动停止等功能。
 */
public final class ExpansionController
implements SubtitleChatMonitor.Listener {
    /** 日志环形缓冲区的最大条数 */
    private static final int MAX_LOGS = 80;
    /** Baritone 寻路桥接（负责自动移动） */
    private final BaritoneBridge baritoneBridge = new BaritoneBridge();
    /** 扩地规划器（决定下一个目标区块） */
    private final ExpansionPlanner planner = new ExpansionPlanner();
    /** 聊天/字幕监听器（识别开垦进度与结果） */
    private final SubtitleChatMonitor monitor = new SubtitleChatMonitor(this);
    /** 领土数据服务（提供实时领土模型） */
    private final TerritoryDataService dataService;
    /** 待占领区块队列 */
    private final Deque<ChunkPos> queue = new ArrayDeque<ChunkPos>();
    /** 运行日志队列（线程安全） */
    private final Deque<String> logs = new ArrayDeque<String>();
    /** 当前扩地配置（启动时从请求配置复制） */
    private ExpansionConfig config = new ExpansionConfig();
    /** 当前领土模型 */
    private TerritoryModel model = TerritoryModel.empty();
    /** 当前状态机状态 */
    private State state = State.IDLE;
    /** 当前状态描述文本（显示在 GUI/命令中） */
    private String status = "\u672a\u542f\u52a8";
    /** 当前目标区块 */
    private ChunkPos target;
    /** 玩家当前所在区块（每帧更新） */
    private ChunkPos playerChunk = new ChunkPos(0, 0);
    /** 已成功开垦的区块数量 */
    private int completedClaims;
    /** 当前目标的连续重试次数 */
    private int retryCount;
    /** 当前阶段（寻路/等待）的开始时间戳 */
    private long stageStartedMillis;
    /** 发送 "/u return" 回城指令的时间戳；0 表示当前未处于回城恢复等待中 */
    private long returnCommandAtMillis;
    /** 回城后是否需要跳过当前目标（重试次数已耗尽则为 true） */
    private boolean skipTargetAfterReturn;
    /** 回城等待时长：发送 "/u return" 后等待传送回王城的毫秒数 */
    private static final long RETURN_WAIT_MS = 10_000L;
    /** 最近一次开垦进度（0-100） */
    private int lastProgress;
    /** 当前目标区块的哈希集合，用于去重（防止重复计数） */
    private final Set<ChunkPos> claimedSet = new HashSet<>();
    /** 是否正在自动进食 */
    private boolean eating;

    public ExpansionController(TerritoryDataService dataService) {
        this.dataService = dataService;
    }

    public SubtitleChatMonitor monitor() {
        return this.monitor;
    }

    public State state() {
        return this.state;
    }

    public String status() {
        return this.status;
    }

    public int completedClaims() {
        return this.completedClaims;
    }

    public int queuedTargets() {
        return this.queue.size();
    }

    public ChunkPos target() {
        return this.target;
    }

    public int lastProgress() {
        return this.lastProgress;
    }

    /** 返回运行日志的副本（线程安全） */
    public List<String> logs() {
        Deque<String> deque = this.logs;
        synchronized (deque) {
            return new ArrayList<String>(this.logs);
        }
    }

    public boolean isRunning() {
        return this.state != State.IDLE && this.state != State.COMPLETE && this.state != State.STOPPED;
    }

    /**
     * 启动自动扩地任务。
     *
     * <p>前置校验：必须在服务器世界中、Baritone 已就绪；
     * 邦国名称为空时自动识别玩家所在邦国，否则校验指定邦国是否存在。
     * 校验通过后清空队列、生成扩地计划并进入 PLANNING 状态。
     *
     * @param requestedConfig 本次任务的扩地配置
     * @return 是否成功启动
     */
    public boolean start(ExpansionConfig requestedConfig) {
        MinecraftClient client = MinecraftClient.getInstance();
        if (client == null || client.player == null || client.world == null) {
            this.status = "\u8bf7\u5148\u8fdb\u5165\u670d\u52a1\u5668\u4e16\u754c";
            return false;
        }
        if (!this.baritoneBridge.isAvailable()) {
            this.status = "Baritone \u5c1a\u672a\u521d\u59cb\u5316\uff0c\u8bf7\u7a0d\u540e\u518d\u8bd5";
            return false;
        }
        this.config = requestedConfig.copy();
        this.model = this.dataService.model();
        this.playerChunk = this.playerChunk(client);
        if (this.config.stateName.isEmpty()) {
            TerritoryState auto = this.model.findContainingState(this.playerChunk);
            if (auto == null) {
                this.status = "\u65e0\u6cd5\u81ea\u52a8\u8bc6\u522b\u90a6\u56fd\uff0c\u8bf7\u5728 GUI \u4e2d\u624b\u52a8\u9009\u62e9";
                this.state = State.IDLE;
                return false;
            }
            this.model.setSelfStateName(auto.name());
            this.dataService.setSelectedStateName(auto.name());
        } else {
            if (this.model.state(this.config.stateName) == null) {
                this.status = "\u6240\u9009\u90a6\u56fd\u4e0d\u5b58\u5728\uff1a" + this.config.stateName;
                this.state = State.IDLE;
                return false;
            }
            this.model.setSelfStateName(this.config.stateName);
            this.dataService.setSelectedStateName(this.config.stateName);
        }
        this.completedClaims = 0;
        this.retryCount = 0;
        this.queue.clear();
        this.claimedSet.clear();
        this.target = null;
        this.eating = false;
        this.returnCommandAtMillis = 0L;
        this.skipTargetAfterReturn = false;
        this.baritoneBridge.applyConfig(this.config);
        this.setState(State.PLANNING, "\u6b63\u5728\u751f\u6210\u6269\u5f20\u8ba1\u5212");
        this.log("\u5f00\u59cb\u81ea\u52a8\u6269\u5730\uff0c\u90a6\u56fd\uff1a" + this.model.selfStateName());
        this.plan();
        return true;
    }

    /** 手动停止任务：取消 Baritone 寻路并进入 STOPPED 状态 */
    public void stop() {
        if (this.state == State.IDLE || this.state == State.COMPLETE || this.state == State.STOPPED) {
            return;
        }
        this.baritoneBridge.cancel();
        this.eating = false;
        this.returnCommandAtMillis = 0L;
        this.skipTargetAfterReturn = false;
        this.setState(State.STOPPED, "\u5df2\u624b\u52a8\u505c\u6b62");
        this.log("\u5df2\u624b\u52a8\u505c\u6b62");
    }

    /**
     * 每帧驱动逻辑（由客户端 tick 事件调用）：
     * 更新玩家区块，优先处理自动进食，再按当前状态分发到对应的 tick 方法。
     * 若已退出世界则自动停止任务。
     */
    public void tick() {
        MinecraftClient client = MinecraftClient.getInstance();
        if (client == null || client.player == null || client.world == null) {
            if (this.isRunning()) {
                this.stop();
                this.status = "\u4e16\u754c\u5df2\u9000\u51fa\uff0c\u4efb\u52a1\u505c\u6b62";
            }
            return;
        }
        this.playerChunk = this.playerChunk(client);
        if (this.tickAutoFood(client)) {
            return;
        }
        this.tickAutoSwim(client);
        switch (this.state.ordinal()) {
            case 1: {
                this.plan();
                break;
            }
            case 2: {
                this.tickPathing();
                break;
            }
            case 3: {
                this.tickWaiting();
                break;
            }
            case 4: {
                this.tickSuccess();
                break;
            }
            case 5: {
                this.tickFail();
                break;
            }
            case 6: {
                this.tickNext();
                break;
            }
        }
    }

    /**
     * 生成扩地计划：调用规划器计算候选区块，按配置过滤圈数上限后入队。
     * 若已达成目标数量或没有可用区块则直接完成。
     */
    private void plan() {
        this.model = this.dataService.model();
        if (this.config.targetCount > 0 && this.completedClaims >= this.config.targetCount) {
            this.finish();
            return;
        }
        this.queue.clear();
        List<ChunkPos> planned = this.planner.generate(this.model, this.config, this.playerChunk);
        // 过滤掉规划后已被他人占领的区块，避免寻路到无效目标
        for (ChunkPos chunk : planned) {
            if (!this.isClaimedByOthers(chunk)) {
                this.queue.add(chunk);
            }
        }
        // 矩形区域扩地时不受扩圈上限限制（玩家圈选的矩形即为明确边界，需完整填充）
        boolean rectangleMode = this.config.strategy == 2 && this.config.regionMaxX >= this.config.regionMinX;
        if (this.config.maxRings > 0 && !rectangleMode) {
            this.queue.removeIf(chunk -> this.ringDistance(chunk, this.model) > this.config.maxRings);
        }
        this.log("\u89c4\u5212\u5b8c\u6210\uff0c\u5171 " + this.queue.size() + " \u4e2a\u5019\u9009\u533a\u5757");
        if (this.queue.isEmpty()) {
            this.setState(State.COMPLETE, "\u6ca1\u6709\u53ef\u7528\u7684\u76f8\u90bb\u65e0\u4e3b\u533a\u5757");
            this.log("\u6ca1\u6709\u53ef\u7528\u7684\u76f8\u90bb\u65e0\u4e3b\u533a\u5757");
            return;
        }
        this.target = this.queue.removeFirst();
        this.startPathing();
    }

    /** 让 Baritone 寻路前往当前目标区块，并进入 PATHING 状态 */
    private void startPathing() {
        this.retryCount = 0;
        this.stageStartedMillis = System.currentTimeMillis();
        this.lastProgress = 0;
        this.baritoneBridge.pathTo(this.target);
        this.setState(State.PATHING, "\u6b63\u5728\u524d\u5f80\u76ee\u6807\u533a\u5757 " + this.target.x() + "," + this.target.z());
    }

    /**
     * 寻路阶段每帧逻辑：到达目标区块后进入等待开垦状态；
     * 若寻路超时则重试，超过重试次数则跳过该目标。
     */
    private void tickPathing() {
        if (this.target == null) {
            this.setState(State.NEXT, "\u76ee\u6807\u4e3a\u7a7a");
            return;
        }
        // 正处于"回城恢复等待"中（已发送 /u return）：等待传送回王城，暂不处理超时/到达
        if (this.returnCommandAtMillis > 0L) {
            // 等待窗口未结束：静默等待，让 /u return 完成传送
            if (System.currentTimeMillis() - this.returnCommandAtMillis < RETURN_WAIT_MS) {
                this.status = "\u5bfb\u8def\u8d85\u65f6\uff0c\u6b63\u5728\u56de\u57ce\uff08/u return\uff09";
                return;
            }
            // 等待窗口结束：取消回城等待；据重试次数决定重寻路或跳过
            this.returnCommandAtMillis = 0L;
            if (this.skipTargetAfterReturn) {
                this.skipTargetAfterReturn = false;
                this.log("\u5bfb\u8def\u8d85\u65f6\uff0c\u56de\u57ce\u540e\u8df3\u8fc7 " + this.target.x() + "," + this.target.z());
                this.setState(State.FAIL, "\u5bfb\u8def\u8d85\u65f6");
                this.dataService.refreshAsync();
            } else {
                this.log("\u5df2\u56de\u57ce\uff0c\u91cd\u65b0\u5bfb\u8def\u524d\u5f80 " + this.target.x() + "," + this.target.z());
                this.retrySameTarget("\u5df2\u56de\u57ce\uff0c\u91cd\u65b0\u524d\u5f80 " + this.target.x() + "," + this.target.z());
            }
            return;
        }
        // 目标已被他人占领（地图刷新后发现）：立即跳过，避免继续寻路到无效区块
        if (this.skipIfTargetClaimed("\u76ee\u6807\u5df2\u88ab\u5360\u9886")) {
            return;
        }
        if (this.playerChunk.equals(this.target)) {
            this.baritoneBridge.cancel();
            this.stageStartedMillis = System.currentTimeMillis();
            this.setState(State.WAITING, "\u5df2\u5230\u8fbe\uff0c\u7b49\u5f85\u9886\u5730\u5f00\u62d3");
            return;
        }
        long elapsedSeconds = (System.currentTimeMillis() - this.stageStartedMillis) / 1000L;
        if (elapsedSeconds >= this.config.waitTimeoutSeconds) {
            ++this.retryCount;
            // 主动刷新地图，尽快同步"区块已被占领"的最新状态，避免玩家被困
            this.dataService.refreshAsync();
            // 寻路超时：发送 /u return 回城，等待传送回王城后重新寻路；重试次数耗尽则回城后跳过
            this.skipTargetAfterReturn = this.retryCount >= this.config.retries;
            if (this.skipTargetAfterReturn) {
                this.log("\u5bfb\u8def\u8d85\u65f6\uff0c\u56de\u57ce\u540e\u8df3\u8fc7 " + this.target.x() + "," + this.target.z());
            } else {
                this.log("\u5bfb\u8def\u8d85\u65f6\uff0c\u56de\u57ce\u91cd\u8bd5 " + this.retryCount + "/" + this.config.retries);
            }
            this.issueReturnCommand();
        }
    }

    /** 等待开垦阶段每帧逻辑：玩家离开目标区块则重新寻路；等待超时则重试或跳过当前目标 */
    private void tickWaiting() {
        if (this.target == null) {
            this.setState(State.NEXT, "\u76ee\u6807\u4e3a\u7a7a");
            return;
        }
        // 目标已被他人占领（地图刷新后发现）：立即跳过，避免被困在已占领区块
        if (this.skipIfTargetClaimed("\u76ee\u6807\u5df2\u88ab\u5360\u9886")) {
            return;
        }
        // 玩家离开了目标区块（被击退/寻路偏差），重新寻路回去
        if (!this.playerChunk.equals(this.target)) {
            this.retrySameTarget("\u79bb\u5f00\u76ee\u6807\u533a\u5757\uff0c\u91cd\u65b0\u524d\u5f80 " + this.target.x() + "," + this.target.z());
            return;
        }
        long elapsedSeconds = (System.currentTimeMillis() - this.stageStartedMillis) / 1000L;
        if (elapsedSeconds >= this.config.waitTimeoutSeconds) {
            ++this.retryCount;
            // 主动刷新地图，尽快同步"区块已被占领"的最新状态，避免玩家被困
            this.dataService.refreshAsync();
            if (this.retryCount >= this.config.retries) {
                this.log("\u7b49\u5f85\u8d85\u65f6\uff0c\u8df3\u8fc7 " + this.target.x() + "," + this.target.z());
                this.setState(State.FAIL, "\u7b49\u5f85\u9886\u5730\u5f00\u62d3\u8d85\u65f6");
            } else {
                this.log("\u7b49\u5f85\u8d85\u65f6\uff0c\u91cd\u8bd5 " + this.retryCount + "/" + this.config.retries);
                this.retrySameTarget("\u7b49\u5f85\u8d85\u65f6\uff0c\u91cd\u65b0\u524d\u5f80 " + this.target.x() + "," + this.target.z());
            }
        }
    }

    /**
     * 发送 "/u return" 回城指令，取消当前寻路，并记录发送时刻以进入回城恢复等待。
     * 服务器会在约 10 秒后将玩家传送回邦国王城，届时由 tickPathing 重新寻路。
     */
    private void issueReturnCommand() {
        this.baritoneBridge.cancel();
        MinecraftClient client = MinecraftClient.getInstance();
        if (client != null && client.player != null && client.player.networkHandler != null) {
            // sendChatCommand 需传不带斜杠的命令（"/u return" -> "u return"）
            client.player.networkHandler.sendChatCommand("u return");
        }
        this.returnCommandAtMillis = System.currentTimeMillis();
        this.status = "\u5bfb\u8def\u8d85\u65f6\uff0c\u5df2\u53d1\u9001 /u return \u56de\u57ce";
    }

    /** 重试当前目标：取消旧寻路，重新让 Baritone 前往同一目标区块 */
    private void retrySameTarget(String statusText) {
        // 目标已被他人占领（地图刷新后发现）：不再重试，直接跳过，避免玩家被困在已占领区块
        if (this.skipIfTargetClaimed("\u91cd\u8bd5\u65f6\u53d1\u73b0\u76ee\u6807\u5df2\u88ab\u5360\u9886")) {
            return;
        }
        this.baritoneBridge.cancel();
        this.stageStartedMillis = System.currentTimeMillis();
        this.baritoneBridge.pathTo(this.target);
        this.setState(State.PATHING, statusText);
    }

    /**
     * 若当前目标区块已被任何邦国占领（含己方与本次会话），
     * 则记录日志、跳过该目标并进入 NEXT 状态，返回 true。
     * 用于在地图数据异步刷新后及时识别"已被占领"的区块，避免死循环。
     */
    private boolean skipIfTargetClaimed(String reason) {
        if (this.target != null && this.isClaimedByOthers(this.target)) {
            this.log(reason + " " + this.target.x() + "," + this.target.z() + "\uff0c\u8df3\u8fc7");
            this.setState(State.NEXT, "\u8df3\u8fc7\u5df2\u5360\u9886\u533a\u5757");
            return true;
        }
        return false;
    }

    /** 成功后的过渡：进入 NEXT 状态，准备处理下一个目标 */
    private void tickSuccess() {
        this.setState(State.NEXT, "\u5df2\u5b8c\u6210 " + this.completedClaims + (this.config.targetCount > 0 ? "/" + this.config.targetCount : "/\u6301\u7eed"));
    }

    /** 失败后的过渡：进入 NEXT 状态，跳过当前目标 */
    private void tickFail() {
        this.setState(State.NEXT, "\u51c6\u5907\u4e0b\u4e00\u4e2a\u76ee\u6807");
    }

    /**
     * 处理下一个目标：若已达成目标数量则完成；
     * 队列为空时重新规划，否则取出队首区块开始寻路。
     */
    private void tickNext() {
        this.target = null;
        if (this.config.targetCount > 0 && this.completedClaims >= this.config.targetCount) {
            this.finish();
            return;
        }
        if (this.queue.isEmpty()) {
            this.plan();
            return;
        }
        this.target = this.queue.removeFirst();
        // 目标已被他人占领时跳过，避免无效寻路
        if (this.isClaimedByOthers(this.target)) {
            this.log("\u76ee\u6807\u5df2\u88ab\u5360\u9886\uff0c\u8df3\u8fc7 " + this.target.x() + "," + this.target.z());
            this.setState(State.NEXT, "\u8df3\u8fc7\u5df2\u5360\u9886\u533a\u5757");
            return;
        }
        this.startPathing();
    }

    /** 完成任务：取消寻路、停止进食，进入 COMPLETE 状态 */
    private void finish() {
        this.baritoneBridge.cancel();
        this.eating = false;
        this.setState(State.COMPLETE, this.config.targetCount > 0 ? "\u5df2\u5b8c\u6210\u76ee\u6807\u6570\u91cf " + this.completedClaims + "/" + this.config.targetCount : "\u5df2\u65e0\u53ef\u6269\u533a\u5757\uff0c\u7d2f\u8ba1\u6269\u5730 " + this.completedClaims);
        this.log("\u81ea\u52a8\u6269\u5730\u5b8c\u6210");
    }

    /** 计算区块到己方领土的"圈数"（切比雪夫距离的最小值），用于过滤扩圈上限 */
    private int ringDistance(ChunkPos chunk, TerritoryModel model) {
        int distance;
        int min = Integer.MAX_VALUE;
        TerritoryState self = model.selfState();
        if (self != null) {
            for (ChunkPos own : self.chunks()) {
                distance = Math.max(Math.abs(chunk.x() - own.x()), Math.abs(chunk.z() - own.z()));
                min = Math.min(min, distance);
            }
        }
        for (ChunkPos own : model.sessionClaims()) {
            distance = Math.max(Math.abs(chunk.x() - own.x()), Math.abs(chunk.z() - own.z()));
            min = Math.min(min, distance);
        }
        return min == Integer.MAX_VALUE ? 0 : min;
    }

    /** 监听器回调：开垦进度更新（0-100%） */
    @Override
    public void onProgress(int percent) {
        if (!this.isRunning()) {
            return;
        }
        this.lastProgress = percent;
        this.status = "\u5f00\u62d3\u4e2d " + percent + "%";
    }

    /**
     * 监听器回调：开垦成功（带具体坐标）。
     * 将新占领区块加入模型与数据服务，累计完成数并进入 SUCCESS 状态。
     */
    @Override
    public void onSuccess(ChunkPos chunk, int blockX, int blockZ) {
        if (!this.isRunning()) {
            return;
        }
        if (chunk == null) {
            chunk = this.target;
        }
        if (chunk == null) {
            return;
        }
        // 去重：同一区块只计一次
        if (!this.claimedSet.add(chunk)) {
            return;
        }
        this.model.addSessionClaim(chunk);
        this.dataService.addSessionClaim(chunk);
        ++this.completedClaims;
        this.target = chunk;
        this.lastProgress = 100;
        this.log("\u5360\u9886\u6210\u529f " + chunk.x() + "," + chunk.z() + "\uff08\u533a\u5757 " + chunk.x() + "," + chunk.z() + " / \u4e16\u754c " + blockX + "," + blockZ + "\uff09");
        this.setState(State.SUCCESS, "\u7586\u571f\u5df2\u5f00\u62d3 " + chunk.x() + "," + chunk.z());
    }

    /** 监听器回调：开垦成功（无具体坐标的通用消息），按当前目标区块记录 */
    @Override
    public void onGenericSuccess() {
        if (!this.isRunning()) {
            return;
        }
        if (this.target == null) {
            return;
        }
        // 去重：同一区块只计一次
        if (!this.claimedSet.add(this.target)) {
            return;
        }
        this.model.addSessionClaim(this.target);
        this.dataService.addSessionClaim(this.target);
        ++this.completedClaims;
        this.lastProgress = 100;
        this.log("\u5360\u9886\u6210\u529f " + this.target.x() + "," + this.target.z());
        this.setState(State.SUCCESS, "\u7586\u571f\u5df2\u5f00\u62d3 " + this.target.x() + "," + this.target.z());
    }

    /** 获取玩家当前所在区块（由方块坐标换算） */
    private ChunkPos playerChunk(MinecraftClient client) {
        BlockPos pos = client.player.getBlockPos();
        return ChunkPos.fromBlock(pos.getX(), pos.getZ());
    }

    /** 判断区块是否已被任何邦国占领（含己方与本次会话） */
    private boolean isClaimedByOthers(ChunkPos chunk) {
        return this.dataService.model().allClaimedChunks().contains(chunk);
    }

    /** 返回区块的四个正方向邻居 */
    private List<ChunkPos> cardinalNeighbors(ChunkPos chunk) {
        return List.of(new ChunkPos(chunk.x() + 1, chunk.z()), new ChunkPos(chunk.x() - 1, chunk.z()), new ChunkPos(chunk.x(), chunk.z() + 1), new ChunkPos(chunk.x(), chunk.z() - 1));
    }

    /**
     * 自动游泳逻辑（每帧调用）：
     * 仅在玩家完全没入水中（有溺水风险）时自动跳跃，保持浮在水面。
     * 玩家在水面上正常游泳时不做任何干预，避免干扰 Baritone 的水平寻路。
     */
    private void tickAutoSwim(MinecraftClient client) {
        if (!this.isRunning()) {
            return;
        }
        PlayerEntity player = client.player;
        if (player == null) {
            return;
        }
        // 只有完全没入水中（头部在水面以下）才有溺水风险，此时才需要跳跃上浮
        if (player.isSubmergedInWater()) {
            player.jump();
        }
    }

    /**
     * 自动进食逻辑（每帧调用）：
     * 开启 autoEat 且饥饿值低于阈值时暂停寻路并自动吃背包里的食物，
     * 吃饱后恢复任务。返回 true 表示本帧被进食占用。
     */
    private boolean tickAutoFood(MinecraftClient client) {
        if (!this.config.autoEat || !this.isRunning()) {
            this.eating = false;
            return false;
        }
        int foodLevel = client.player.getHungerManager().getFoodLevel();
        if (this.eating) {
            if (client.player.isUsingItem()) {
                this.status = "\u81ea\u52a8\u8fdb\u98df\u4e2d";
                return true;
            }
            if (foodLevel >= 20 || foodLevel > this.config.eatThreshold) {
                this.eating = false;
                this.resumeAfterEating();
                this.log("\u81ea\u52a8\u8fdb\u98df\u5b8c\u6210");
                return false;
            }
            return this.beginEating(client, foodLevel);
        }
        if (foodLevel > this.config.eatThreshold) {
            return false;
        }
        return this.beginEating(client, foodLevel);
    }

    /** 开始进食：在背包中找食物并切换主手使用；找不到食物则提示并返回 false */
    private boolean beginEating(MinecraftClient client, int foodLevel) {
        if (client.player.isUsingItem()) {
            this.eating = true;
            this.status = "\u81ea\u52a8\u8fdb\u98df\u4e2d";
            return true;
        }
        int slot = this.findFoodSlot(client.player.getInventory());
        if (slot < 0) {
            this.status = "\u9965\u997f\u4f46\u80cc\u5305\u91cc\u6ca1\u6709\u98df\u7269";
            return false;
        }
        this.baritoneBridge.cancel();
        client.player.getInventory().selectedSlot = slot;
        client.interactionManager.interactItem(client.player, Hand.MAIN_HAND);
        this.eating = true;
        this.status = "\u81ea\u52a8\u8fdb\u98df\u4e2d";
        this.log("\u81ea\u52a8\u8fdb\u98df\uff0c\u9965\u997f\u503c " + foodLevel);
        return true;
    }

    /** 在背包前 36 格中查找第一个可食用的物品槽位（含 FOOD 组件），找不到返回 -1 */
    private int findFoodSlot(PlayerInventory inventory) {
        for (int slot = 0; slot < 36; ++slot) {
            ItemStack stack = inventory.getStack(slot);
            if (stack.isEmpty() || stack.getComponents().get(DataComponentTypes.FOOD) == null) continue;
            return slot;
        }
        return -1;
    }

    /** 进食完成后恢复任务：若仍在寻路阶段则重新发起寻路 */
    private void resumeAfterEating() {
        this.eating = false;
        if (this.state == State.PATHING && this.target != null) {
            this.stageStartedMillis = System.currentTimeMillis();
            this.baritoneBridge.pathTo(this.target);
        }
    }

    /** 更新状态与状态描述文本 */
    private void setState(State newState, String newStatus) {
        this.state = newState;
        this.status = newStatus;
    }

    /** 追加一条带时间戳的日志，超出上限时移除最旧记录 */
    private void log(String message) {
        Deque<String> deque = this.logs;
        synchronized (deque) {
            this.logs.addLast(System.currentTimeMillis() + " " + message);
            while (this.logs.size() > 80) {
                this.logs.removeFirst();
            }
        }
    }

    /**
     * 扩地任务状态机枚举：
     * <ul>
     *   <li>IDLE：空闲（未启动）</li>
     *   <li>PLANNING：正在生成扩地计划</li>
     *   <li>PATHING：正在寻路前往目标区块</li>
     *   <li>WAITING：已到达，等待开垦完成</li>
     *   <li>SUCCESS：当前区块开垦成功</li>
     *   <li>FAIL：当前区块开垦失败/超时</li>
     *   <li>NEXT：准备处理下一个目标</li>
     *   <li>COMPLETE：全部目标完成</li>
     *   <li>STOPPED：被手动停止</li>
     * </ul>
     */
    @Environment(value=EnvType.CLIENT)
    public static enum State {
        IDLE,
        PLANNING,
        PATHING,
        WAITING,
        SUCCESS,
        FAIL,
        NEXT,
        COMPLETE,
        STOPPED;

    }
}