'use strict';

const test = require('node:test');
const assert = require('node:assert');
const fs = require('fs');
const os = require('os');
const path = require('path');

const { BotManager, kindOfPosition, computeReconnectDelay, extractKickReason } = require('../src/bot/botManager');
const { FakeBot } = require('./helpers/fakeBot');
const { ChatLog, ChatKind } = require('../src/core/chatLog');
const { defaultConfig, normalizeConfig } = require('../src/config/expansionConfig');
const { Logger } = require('../src/util/logger');

/** 建一个不连接的机器人管理器（含公屏日志） */
function setup(options) {
  const opts = options || {};
  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'autostore-botmgr-'));
  const chatLog = new ChatLog({ dir });
  const config = normalizeConfig(Object.assign(defaultConfig(), opts.config || {}));
  const logger = new Logger({ echo: false });
  const manager = new BotManager({
    id: 'BotA',
    username: 'BotA',
    password: 'pw',
    host: 'mc.example.com',
    port: 25565,
    version: '1.21.4',
    label: '主号'
  }, config, logger, { chatLog });
  const sent = [];
  manager.bot = { chat: (text) => sent.push(text) };
  return { manager, chatLog, config, sent, logger };
}
/** 等一轮宏任务，让指令节流定时器真正把内容写出 */
function drainQueue() {
  return new Promise((resolve) => setTimeout(resolve, 5));
}

test('kindOfPosition 把消息通道映射为公屏日志类型', () => {
  assert.strictEqual(kindOfPosition('chat'), ChatKind.CHAT);
  assert.strictEqual(kindOfPosition('system'), ChatKind.SYSTEM);
  assert.strictEqual(kindOfPosition('game_info'), ChatKind.ACTION);
  assert.strictEqual(kindOfPosition(undefined), ChatKind.CHAT);
});

test('isReady 要求已连接、已进入世界、寻路器就绪且完成登录验证', () => {
  const { manager } = setup();
  manager.state = 'online';
  manager.bot = { entity: {}, pathfinder: {} };
  manager.loggedIn = false;
  assert.strictEqual(manager.isReady(), false, '未完成登录验证不算就绪');

  manager.loggedIn = true;
  assert.strictEqual(manager.isReady(), true);

  manager.state = 'connecting';
  assert.strictEqual(manager.isReady(), false);
});

test('未完成登录验证时拒绝发送指令与聊天', () => {
  const { manager, sent } = setup();
  manager.state = 'online';
  manager.loggedIn = false;
  assert.strictEqual(manager.canOperate(), false);
  assert.strictEqual(manager.sendCommand('u claimmode'), false);
  assert.strictEqual(manager.sendChat('大家好'), false);
  assert.deepStrictEqual(sent, [], '不应真的写出任何内容');
});

test('登录验证通过后指令与聊天都会被写出并留档', () => {
  const { manager, chatLog, sent } = setup({ config: { server: { commandCooldownMs: 0 } } });
  manager.state = 'online';
  manager.loggedIn = true;

  manager.sendCommand('u claimmode', { immediate: true });
  manager.sendChat('大家好', { internal: true });
  manager._chatQueue.length = 0;
  manager._writeChat('大家好');

  assert.deepStrictEqual(sent, ['/u claimmode', '大家好']);
  const rows = chatLog.list('BotA');
  assert.strictEqual(rows.length, 2);
  assert.strictEqual(rows[0].kind, ChatKind.COMMAND);
  assert.strictEqual(rows[0].message, '/u claimmode');
  assert.strictEqual(rows[1].kind, ChatKind.OUT);
  assert.strictEqual(rows[1].message, '大家好');
});

test('以斜杠开头的聊天内容被当作指令发送', () => {
  const { manager, sent } = setup();
  manager.state = 'online';
  manager.loggedIn = true;
  manager.sendChat('/spawn', { internal: true });
  manager._chatQueue.length = 0;
  // 指令走队列，直接驱动写入
  manager._writeCommand(manager._commandQueue.pop() || 'spawn');
  assert.deepStrictEqual(sent, ['/spawn']);
});

test('internal 选项绕过登录门禁（登录 / 注册流程自身使用）', () => {
  const { manager, sent } = setup();
  manager.state = 'online';
  manager.loggedIn = false;
  assert.strictEqual(manager.sendCommand('login pw', { internal: true, immediate: true }), true);
  assert.deepStrictEqual(sent, ['/login pw']);
});

test('收到「登录成功」提示后置为已登录', () => {
  const { manager } = setup();
  manager.config.server.loginCommand = 'login {password}';
  manager.loggedIn = false;
  manager._handleAuthPrompt('登录成功，欢迎回来');
  assert.strictEqual(manager.loggedIn, true);
  assert.strictEqual(manager.loginFailed, false);
});

test('收到「已登录」提示同样视为通过验证', () => {
  const { manager } = setup();
  manager.loggedIn = false;
  manager._handleAuthPrompt('你已登录，无需重复登录');
  assert.strictEqual(manager.loggedIn, true);
});

test('收到密码错误提示时标记登录失败且不放行操作', () => {
  const { manager } = setup();
  manager.loggedIn = false;
  manager._handleAuthPrompt('密码错误，请重新输入');
  assert.strictEqual(manager.loginFailed, true);
  assert.strictEqual(manager.loggedIn, false);
  assert.strictEqual(manager.canOperate(), false);
});

test('服务器提示注册时自动发送注册指令（绕过门禁）', async () => {
  const { manager, sent } = setup({ config: { server: { commandCooldownMs: 0 } } });
  manager.config.server.registerCommand = 'register {password}';
  manager.config.server.loginCommand = 'login {password}';
  manager.loggedIn = false;
  manager._handleAuthPrompt('请先注册');
  await drainQueue();
  assert.deepStrictEqual(sent, ['/register pw']);
});

test('服务器提示登录时自动发送登录指令（绕过门禁）', async () => {
  const { manager, sent } = setup({ config: { server: { commandCooldownMs: 0 } } });
  manager.config.server.loginCommand = 'login {password}';
  manager.loggedIn = false;
  manager._handleAuthPrompt('请先输入登录密码');
  await drainQueue();
  assert.deepStrictEqual(sent, ['/login pw']);
});

test('登录确认兜底：超时未收到任何提示时按已登录放行', async () => {
  const { manager } = setup({ config: { server: { loginConfirmTimeoutMs: 20 } } });
  manager.loggedIn = false;
  manager.loginFailed = false;
  manager._armLoginConfirmFallback();
  await new Promise((resolve) => setTimeout(resolve, 60));
  assert.strictEqual(manager.loggedIn, true);
});

test('登录确认兜底不会覆盖已明确失败的登录', async () => {
  const { manager } = setup({ config: { server: { loginConfirmTimeoutMs: 20 } } });
  manager.loggedIn = false;
  manager._armLoginConfirmFallback();
  manager.loginFailed = true;
  await new Promise((resolve) => setTimeout(resolve, 60));
  assert.strictEqual(manager.loggedIn, false);
});

test('收到消息时写入公屏日志（含系统消息与发言者）', () => {
  const { manager, chatLog } = setup();
  manager._recordChat('服务器将在 5 分钟后重启', 'system', null);
  manager._recordChat('你好', 'chat', 'Steve');
  const rows = chatLog.list('BotA');
  assert.strictEqual(rows.length, 2);
  assert.strictEqual(rows[0].kind, ChatKind.SYSTEM);
  assert.strictEqual(rows[1].kind, ChatKind.CHAT);
  assert.strictEqual(rows[1].username, 'Steve');
});

test('snapshot 暴露多机器人需要的 id / 备注 / 登录与操作许可', () => {
  const { manager } = setup();
  const snap = manager.snapshot();
  assert.strictEqual(snap.id, 'BotA');
  assert.strictEqual(snap.label, '主号');
  assert.strictEqual(snap.username, 'BotA');
  assert.strictEqual(snap.loggedIn, false);
  assert.strictEqual(snap.canOperate, false);
  assert.strictEqual(snap.loginFailed, false);
});

// ==================== 被服务器反复传送时的日志聚合 ====================

test('被服务器传送：首次立即记录，其余聚合为一条汇总', () => {
  const { manager, logger } = setup();
  manager._countForcedMove();
  const afterFirst = logger.list().filter((e) => e.message.includes('被服务器传送'));
  assert.strictEqual(afterFirst.length, 1, '首次传送应立即记一条');

  // 模拟账号未验证时被每 tick 强推位置：再触发 200 次不应继续刷日志
  for (let i = 0; i < 200; i++) manager._countForcedMove();
  assert.strictEqual(logger.list().filter((e) => e.message.includes('被服务器传送')).length, 1,
    '同一窗口内的重复传送不得逐条记录');

  manager._flushForcedMove();
  const lines = logger.list().filter((e) => e.message.includes('被服务器传送'));
  assert.strictEqual(lines.length, 2, '窗口结束时汇总成一条');
  assert.ok(lines[1].message.includes('另有 200 次'), '汇总应包含次数');
  assert.strictEqual(lines[1].level, 'warn');
});

test('被服务器传送：窗口内只有一次时不输出多余汇总', () => {
  const { manager, logger } = setup();
  manager._countForcedMove();
  manager._flushForcedMove();
  assert.strictEqual(logger.list().filter((e) => e.message.includes('被服务器传送')).length, 1);
});

test('被服务器传送：断开连接时把未汇总的计数刷出去并清掉定时器', () => {
  const { manager, logger } = setup();
  manager._countForcedMove();
  for (let i = 0; i < 9; i++) manager._countForcedMove();
  manager._clearForcedMoveTimer();
  assert.strictEqual(manager._forcedMoveTimer, null);
  assert.strictEqual(manager._forcedMoveCount, 0);
  const lines = logger.list().filter((e) => e.message.includes('被服务器传送'));
  assert.ok(lines.some((e) => e.message.includes('另有 9 次')));
});

// ==================== 账号绑定 / 二次验证 ====================

test('服务器要求账号绑定时给出可操作的中文告警（且只提示一次）', () => {
  const { manager, logger } = setup();
  manager.config.server.loginCommand = 'login {password}';
  manager.loggedIn = false;
  manager._handleAuthPrompt('为了保障服务器安全，您需要绑定您的简幻通账号。');
  manager._handleAuthPrompt('请使用命令: /auth <简幻通UID> <验证码>');
  manager._handleAuthPrompt('请在 120 秒内完成验证，否则将被踢出服务器。');

  const errors = logger.list().filter((e) => e.level === 'error' && e.message.includes('账号绑定'));
  assert.strictEqual(errors.length, 1, '同一连接内只提示一次，避免刷屏');
  assert.ok(logger.list().some((e) => e.message.includes('需要人工完成一次')));
  assert.strictEqual(manager.loggedIn, false, '未完成验证时不得放行操作');
});

test('配置了账号绑定指令模板时自动发送（绕过门禁）', () => {
  const { manager, sent } = setup();
  manager.config.server.authCommand = 'auth {password}';
  manager.loggedIn = false;
  manager._handleAuthPrompt('请使用命令: /auth <简幻通UID> <验证码>');
  assert.deepStrictEqual(sent, ['/auth pw']);
});

test('未配置账号绑定模板时不乱发指令', () => {
  const { manager, sent } = setup();
  manager.config.server.authCommand = '';
  manager._handleAuthPrompt('请使用命令: /auth <简幻通UID> <验证码>');
  assert.deepStrictEqual(sent, []);
});

test('重新登录后绑定告警标记被复位', () => {
  const { manager } = setup();
  manager._handleAuthPrompt('您需要绑定您的简幻通账号');
  assert.strictEqual(manager._needAuthWarned, true);
  // 模拟 login 事件的处理
  manager._needAuthWarned = false;
  assert.strictEqual(manager._needAuthWarned, false);
});

// ==================== 重连退避 ====================

test('computeReconnectDelay 按指数退避并在上限处钳制', () => {
  const server = { reconnectDelayMs: 10000, reconnectMaxDelayMs: 120000 };
  assert.strictEqual(computeReconnectDelay(server, 1), 10000);
  assert.strictEqual(computeReconnectDelay(server, 2), 20000);
  assert.strictEqual(computeReconnectDelay(server, 3), 40000);
  assert.strictEqual(computeReconnectDelay(server, 4), 80000);
  assert.strictEqual(computeReconnectDelay(server, 5), 120000, '超过上限后钳制');
  assert.strictEqual(computeReconnectDelay(server, 30), 120000);
});

test('computeReconnectDelay 缺省上限时退化为固定间隔', () => {
  assert.strictEqual(computeReconnectDelay({ reconnectDelayMs: 5000 }, 1), 5000);
  // 未配置上限时 max 取基准值，等价于固定间隔（保持旧行为，不突然拉长重连）
  assert.strictEqual(computeReconnectDelay({ reconnectDelayMs: 5000 }, 4), 5000);
  assert.strictEqual(computeReconnectDelay({ reconnectDelayMs: 5000, reconnectMaxDelayMs: 5000 }, 4), 5000);
});

test('config 校验补全 authCommand 与 reconnectMaxDelayMs', () => {
  const { config } = setup();
  assert.strictEqual(config.server.authCommand, '');
  assert.strictEqual(config.server.reconnectMaxDelayMs, 120000);
});

// ==================== 免登录指令白名单（避免「先登录才能发登录指令」死锁）====================

test('验证类指令在未登录时也放行（login / register / auth）', () => {
  const { manager, sent } = setup({ config: { server: { commandCooldownMs: 0 } } });
  manager.state = 'online';
  manager.loggedIn = false;

  assert.strictEqual(manager.canSendCommand('login mypass'), true);
  assert.strictEqual(manager.canSendCommand('/auth 12345 6789'), true);
  assert.strictEqual(manager.canSendCommand('register mypass'), true);
  assert.strictEqual(manager.canSendCommand('l mypass'), true);

  assert.strictEqual(manager.sendCommand('auth 12345 6789', { immediate: true }), true);
  assert.deepStrictEqual(sent, ['/auth 12345 6789']);
});

test('任务类指令在未登录时仍被拒绝', () => {
  const { manager, sent } = setup();
  manager.state = 'online';
  manager.loggedIn = false;

  assert.strictEqual(manager.canSendCommand('u claimmode'), false);
  assert.strictEqual(manager.canSendCommand('u return'), false);
  assert.strictEqual(manager.canSendCommand('spawn'), false);
  assert.strictEqual(manager.sendCommand('u claimmode'), false);
  assert.deepStrictEqual(sent, []);
});

test('前缀匹配不会误放行同前缀的其它指令', () => {
  const { manager } = setup();
  manager.state = 'online';
  manager.loggedIn = false;
  // auth 放行，但 authx / authenticate 不属于白名单里的精确前缀
  assert.strictEqual(manager.canSendCommand('auth 1 2'), true);
  assert.strictEqual(manager.canSendCommand('authx 1 2'), false);
  assert.strictEqual(manager.canSendCommand('login'), true);
  assert.strictEqual(manager.canSendCommand('loginx'), false);
});

test('白名单可通过配置清空（全部指令都要求登录验证）', () => {
  const { manager } = setup({ config: { server: { preLoginCommands: [] } } });
  manager.state = 'online';
  manager.loggedIn = false;
  assert.strictEqual(manager.canSendCommand('login mypass'), false);
});

test('登录验证通过后白名单不再是唯一通道', () => {
  const { manager } = setup();
  manager.state = 'online';
  manager.loggedIn = true;
  assert.strictEqual(manager.canSendCommand('u claimmode'), true);
});

test('preLoginCommands 配置被归一化（去斜杠、去空项、转小写）', () => {
  const { config } = setup({ config: { server: { preLoginCommands: ['/Login', ' AUTH ', '', '  ', 'reg'] } } });
  assert.deepStrictEqual(config.server.preLoginCommands, ['login', 'auth', 'reg']);
});

// ==================== 没有密码 / 不需要密码的登录流程 ====================

test('配置了登录指令模板但没密码时，超时后按「无需登录」放行', async () => {
  const { manager } = setup({ config: { server: { loginConfirmTimeoutMs: 20 } } });
  manager.config.server.loginCommand = 'login {password}';
  manager.connection.password = '';
  manager.state = 'online';
  manager.bot = { entity: {}, pathfinder: {} };

  manager._handleLogin();
  assert.strictEqual(manager.loggedIn, false, '初始仍视为未验证');

  await new Promise((resolve) => setTimeout(resolve, 60));
  assert.strictEqual(manager.loggedIn, true, '超时后必须放行，否则控制台完全无法操作');
  assert.strictEqual(manager.canOperate(), true);
});

test('服务器不需要登录指令时直接视为已通过验证', () => {
  const { manager } = setup();
  manager.config.server.loginCommand = '';
  manager._handleLogin();
  assert.strictEqual(manager.loggedIn, true);
});

test('服务器要登录但没配密码时给出明确错误提示（只提示一次）', () => {
  const { manager, logger } = setup();
  manager.connection.password = '';
  manager.loggedIn = false;
  manager._handleAuthPrompt('请先输入登录密码');
  manager._handleAuthPrompt('请先输入登录密码');
  const errors = logger.list().filter((e) => e.level === 'error' && e.message.includes('没有该账号的密码'));
  assert.strictEqual(errors.length, 1);
});

// ==================== 验证码是聊天内容而非指令 ====================

test('服务器要求验证时放行公屏聊天（验证码常直接当聊天发出）', () => {
  const { manager, sent } = setup();
  manager.state = 'online';
  manager.loggedIn = false;
  manager.bot = { chat: (text) => sent.push(text) };

  assert.strictEqual(manager.canSendChat(), false, '没有验证要求时默认不放行');
  manager._handleAuthPrompt('您需要绑定您的简幻通账号');
  assert.strictEqual(manager.canSendChat(), true, '服务器要求验证后应放行');

  manager.sendChat('123456', { internal: true });
  manager._chatQueue.length = 0;
  manager._writeChat('123456');
  assert.deepStrictEqual(sent, ['123456']);
});

test('allowChatBeforeLogin 配置可无条件放行登录前聊天', () => {
  const { manager } = setup({ config: { server: { allowChatBeforeLogin: true } } });
  manager.state = 'online';
  manager.loggedIn = false;
  manager.bot = { chat: () => {} };
  assert.strictEqual(manager.canSendChat(), true);
});

test('未连接时公屏聊天一律不放行', () => {
  const { manager } = setup({ config: { server: { allowChatBeforeLogin: true } } });
  manager.state = 'offline';
  assert.strictEqual(manager.canSendChat(), false);
});

// ==================== 出站位置包的 onGround 纠正 ====================

/** 造一个站在实心方块上的假 bot */
function botStandingOnStone() {
  return new FakeBot({
    x: 0.5,
    y: 72,
    z: 0.5,
    blockMap: new Map([['0,71,0', { name: 'stone', boundingBox: 'block' }]])
  });
}

test('_isStandingOnGround 用脚下方块判断是否站在地面上', () => {
  const { manager } = setup();
  manager.bot = botStandingOnStone();
  assert.strictEqual(manager._isStandingOnGround(), true);

  manager.bot = new FakeBot({ x: 0.5, y: 72, z: 0.5 });
  assert.strictEqual(manager._isStandingOnGround(), false, '脚下是空气时应为 false');

  manager.bot = { entity: {} };
  assert.strictEqual(manager._isStandingOnGround(), null, '拿不到世界数据时返回 null');
});

test('出站位置包的 onGround 被世界数据纠正（修复「站地上却报空中」）', () => {
  const { manager } = setup();
  manager.bot = botStandingOnStone();

  const params = { flags: { onGround: false } };
  manager._fixOutboundOnGround(params);
  assert.strictEqual(params.flags.onGround, true, '站在石头上必须上报 onGround=true');
  assert.strictEqual(manager.packetStats.onGroundFixed, 1);
});

test('onGround 已一致时不改写、不计数', () => {
  const { manager } = setup();
  manager.bot = botStandingOnStone();
  const params = { flags: { onGround: true } };
  manager._fixOutboundOnGround(params);
  assert.strictEqual(manager.packetStats.onGroundFixed, 0);
});

test('关闭 reportOnGroundFromWorld 后完全不干预出站包', () => {
  const { manager } = setup({ config: { grim: { reportOnGroundFromWorld: false } } });
  manager.bot = botStandingOnStone();
  const params = { flags: { onGround: false } };
  manager._fixOutboundOnGround(params);
  assert.strictEqual(params.flags.onGround, false);
  assert.strictEqual(manager.packetStats.onGroundFixed, 0);
});

test('出站包结构异常时不抛异常', () => {
  const { manager } = setup();
  manager.bot = botStandingOnStone();
  assert.doesNotThrow(() => manager._fixOutboundOnGround(null));
  assert.doesNotThrow(() => manager._fixOutboundOnGround({}));
  assert.doesNotThrow(() => manager._fixOutboundOnGround({ flags: {} }));
});

test('位置包统计暴露在 snapshot 中，便于排查走不动的问题', () => {
  const { manager } = setup();
  const snap = manager.snapshot();
  assert.ok(snap.packetStats);
  assert.strictEqual(snap.packetStats.inboundPosition, 0);
  assert.strictEqual(snap.packetStats.outboundPosition, 0);
  assert.strictEqual(snap.onGround, false);
  assert.strictEqual(snap.world, null, '未进入世界时没有世界诊断信息');
});

// ==================== 手动移动测试 ====================

test('walkTest 走控制键而不是寻路器，能测出真实位移', async () => {
  const { manager, sent } = setup();
  const bot = botStandingOnStone();
  manager.bot = bot;
  manager.state = 'online';
  const controls = [];
  manager.grim = { setControlState: (c, on) => controls.push([c, on]) };
  // 模拟按住前进键后位置发生变化
  setTimeout(() => { bot.entity.position.z -= 8; }, 30);

  const result = await manager.walkTest('forward', 0.5);
  assert.strictEqual(result.ok, true);
  assert.ok(result.message.includes('位移'));
  assert.deepStrictEqual(controls, [['forward', true], ['forward', false]], '按下后必须松开');
  assert.ok(Math.abs(result.to.z - result.from.z) > 0.5);
});

test('walkTest 在原地不动时返回失败并记警告', async () => {
  const { manager, logger } = setup();
  manager.bot = botStandingOnStone();
  manager.state = 'online';
  manager.grim = { setControlState: () => {} };

  const result = await manager.walkTest('forward', 0.5);
  assert.strictEqual(result.ok, false, '没有位移必须如实返回失败，而不是假装成功');
  assert.ok(logger.list().some((e) => e.level === 'warn' && e.message.includes('几乎没有移动')));
});

test('walkTest 拒绝非法方向与未连接状态', async () => {
  const { manager } = setup();
  manager.state = 'online';
  const bad = await manager.walkTest('teleport', 1);
  assert.strictEqual(bad.ok, false);
  assert.ok(bad.message.includes('方向'));

  manager.state = 'offline';
  const offline = await manager.walkTest('forward', 1);
  assert.strictEqual(offline.ok, false);
  assert.ok(offline.message.includes('未连接'));
});

// ==================== 踢出原因解析 ====================

test('extractKickReason 把组件对象提取成纯文本', () => {
  // 服务端踢人时发的是组件对象，直接 JSON.stringify 会得到没法看的一串
  const component = { color: 'red', text: '您已经连接到此代理服务器了！' };
  assert.strictEqual(extractKickReason(component), '您已经连接到此代理服务器了！');
  assert.strictEqual(extractKickReason('普通字符串'), '普通字符串');
  assert.strictEqual(
    extractKickReason({ text: 'You were kicked: ', extra: [{ text: '验证超时' }] }),
    'You were kicked: 验证超时'
  );
  assert.strictEqual(extractKickReason(null), '未知原因');
  assert.strictEqual(extractKickReason(undefined), '未知原因');
});

test('「账号已在别处登录」被识别并给出可操作提示', () => {
  const { manager, logger } = setup();
  const bot = new FakeBot();
  manager.bot = bot;
  manager._wireEvents(bot);

  bot.emit('kicked', { color: 'red', text: '您已经连接到此代理服务器了！' });

  assert.strictEqual(manager.alreadyConnected, true, '应标记为「已在别处登录」');
  const lines = logger.list();
  assert.ok(lines.some((e) => e.level === 'error' && e.message.includes('您已经连接到此代理服务器了')),
    '应把组件里的纯文本记进日志');
  assert.ok(lines.some((e) => e.message.includes('该账号已在别处登录') && e.message.includes('客户端')),
    '应提示用户去关掉另一个客户端');
});

test('其它踢出原因不触发「已在别处登录」提示', () => {
  const { manager, logger } = setup();
  const bot = new FakeBot();
  manager.bot = bot;
  manager._wireEvents(bot);

  bot.emit('kicked', '服务器重启中');
  assert.strictEqual(manager.alreadyConnected, false);
  assert.ok(logger.list().some((e) => e.message.includes('服务器重启中')));
  assert.ok(!logger.list().some((e) => e.message.includes('该账号已在别处登录')));
});

test('账号已在别处登录时重连退避到最大间隔，不频繁硬撞服务器', () => {
  const { manager } = setup();
  manager.config.server.reconnectDelayMs = 10000;
  manager.config.server.reconnectMaxDelayMs = 120000;
  manager.alreadyConnected = true;
  manager._scheduleReconnect();
  assert.ok(manager._reconnectTimer, '应安排重连');
  // 正常退避第 1 次是 10 秒，被踢时应直接跳到上限 120 秒
  const delay = manager._reconnectTimer._idleTimeout;
  assert.strictEqual(delay, 120000, `实际 ${delay}`);
  manager._manualDisconnect = true;
  clearTimeout(manager._reconnectTimer);
});

test('重新登录成功后清掉「已在别处登录」标记', () => {
  const { manager } = setup();
  manager.alreadyConnected = true;
  // 模拟 login 事件的处理
  manager.alreadyConnected = false;
  assert.strictEqual(manager.alreadyConnected, false);
});

test('识别「请直接输入验证码进行验证」（绑定过的账号每次登录仍可能要验证码）', () => {
  const { manager, logger } = setup();
  manager.loggedIn = false;
  manager._handleAuthPrompt('欢迎回来！您绑定的简幻通UID是: 102017');
  manager._handleAuthPrompt('请直接输入验证码进行验证');

  assert.strictEqual(manager._needAuthWarned, true, '必须识别这句话，否则用户只看到机器人卡在大厅');
  assert.ok(logger.list().some((e) => e.level === 'error' && e.message.includes('二次验证')));
  assert.ok(manager.snapshot().needsVerification === true, 'snapshot 应暴露给控制台弹提示');
});

test('识别「请使用微信扫描手中的二维码进行身份验证」', () => {
  const { manager } = setup();
  manager._handleAuthPrompt('请使用微信扫描手中的二维码进行身份验证');
  assert.strictEqual(manager._needAuthWarned, true);
});

// ==================== 原点（00）自救 ====================

/** 把机器人放到世界原点附近（脚下是基岩 —— 实测两种情况都是基岩） */
function placeAtOrigin(manager, bot, y) {
  bot.entity.position.x = -1.5;
  bot.entity.position.y = y === undefined ? -2 : y;
  bot.entity.position.z = -4.5;
  bot.blockAt = () => ({ name: 'bedrock', boundingBox: 'block' });
  manager.bot = bot;
}

test('原点附近且服务器没要求验证码 → 按「死亡卡住」处理并尝试左右移动自救', () => {
  const { manager, logger } = setup();
  const bot = new FakeBot();
  placeAtOrigin(manager, bot);
  manager._needAuthWarned = false;

  manager._handleZeroPosition();

  assert.strictEqual(manager.needsVerificationHint, false, '不应误判成登录服');
  assert.strictEqual(manager._escaping, true, '应开始左右移动自救');
  const lines = logger.list().map((e) => e.message).join('\n');
  assert.ok(lines.includes('疑似死亡后卡住'), '应说明是死亡卡住：' + lines);
  assert.strictEqual(manager.needsVerificationHint, false, '不应把标记置成登录服');
  assert.ok(lines.includes('左右移动'), '应说明自救手段');
});

test('原点附近且服务器要求验证码 → 判定为登录服，提示人工发验证码（不做自救）', () => {
  const { manager, logger } = setup();
  const bot = new FakeBot();
  placeAtOrigin(manager, bot);
  manager._needAuthWarned = true;

  manager._handleZeroPosition();

  assert.strictEqual(manager.needsVerificationHint, true);
  assert.notStrictEqual(manager._escaping, true, '登录服里左右移动没有意义');
  const lines = logger.list().map((e) => e.message).join('\n');
  assert.ok(lines.includes('被切到了登录服'), '应明确指出是登录服：' + lines);
  assert.ok(lines.includes('验证码'), '应引导用户发验证码');
});

test('脚下是基岩不能作为区分依据（两种情况都是基岩）', () => {
  const { manager } = setup();
  const bot = new FakeBot();
  placeAtOrigin(manager, bot);
  // 同一个基岩地形，仅凭「服务器要不要验证码」得出不同结论
  manager._needAuthWarned = false;
  manager._handleZeroPosition();
  const asDeath = manager.needsVerificationHint;

  const second = setup();
  const bot2 = new FakeBot();
  placeAtOrigin(second.manager, bot2);
  second.manager._needAuthWarned = true;
  second.manager._handleZeroPosition();

  assert.strictEqual(asDeath, false);
  assert.strictEqual(second.manager.needsVerificationHint, true);
});

test('验证码提示到达时若人在原点附近，点明「被反复传送」的因果关系', () => {
  const { manager, logger } = setup();
  const bot = new FakeBot();
  placeAtOrigin(manager, bot);
  manager._needAuthWarned = false;

  manager._handleAuthPrompt('请直接输入验证码进行验证');

  assert.strictEqual(manager.needsVerificationHint, true);
  const lines = logger.list().map((e) => e.message).join('\n');
  assert.ok(lines.includes('已被切到登录服'), '应把传送刷屏与登录服关联起来：' + lines);
});

test('不在原点附近时不触发任何原点逻辑', () => {
  const { manager } = setup();
  const bot = new FakeBot();
  bot.entity.position.x = 6760;
  bot.entity.position.y = 148;
  bot.entity.position.z = 11934;
  manager.bot = bot;

  manager._handleZeroPosition();

  assert.notStrictEqual(manager._escaping, true);
  assert.strictEqual(manager.needsVerificationHint, false);
});

test('snapshot 暴露 alreadyConnected 供控制台提示用户', () => {
  const { manager } = setup();
  assert.strictEqual(manager.snapshot().alreadyConnected, false);
  manager.alreadyConnected = true;
  assert.strictEqual(manager.snapshot().alreadyConnected, true);
});

// ==================== 插件加载 ====================
test('connect 时显式加载 mineflayer-pathfinder 插件', () => {
  const mineflayer = require('mineflayer');
  const originalCreateBot = mineflayer.createBot;
  const loaded = [];
  mineflayer.createBot = () => {
    const fake = new (require('events').EventEmitter)();
    fake.loadPlugin = (plugin) => loaded.push(plugin);
    return fake;
  };
  try {
    const { manager } = setup();
    manager.bot = null; // setup 预置了 bot 桩，这里要真正走一次 connect 流程
    manager.connect();
    assert.strictEqual(loaded.length, 1, '必须调用 loadPlugin，否则 bot.pathfinder 永远为 undefined');
    assert.ok(loaded[0], '加载的应是 pathfinder 插件');
    // 插件加载后 bot.pathfinder 才会有值，isReady() 才可能为真
    assert.strictEqual(manager.isReady(), false, '仅加载插件、未进入世界时仍不算就绪');
  } finally {
    mineflayer.createBot = originalCreateBot;
  }
});

test('加载插件失败时不抛异常，但会记错误日志', () => {
  const mineflayer = require('mineflayer');
  const originalCreateBot = mineflayer.createBot;
  mineflayer.createBot = () => {
    const fake = new (require('events').EventEmitter)();
    fake.loadPlugin = () => { throw new Error('插件加载炸了'); };
    return fake;
  };
  try {
    const { manager, logger } = setup();
    manager.bot = null;
    assert.doesNotThrow(() => manager.connect());
    assert.ok(logger.list().some((e) => e.level === 'error' && e.message.includes('pathfinder')));
  } finally {
    mineflayer.createBot = originalCreateBot;
  }
});