'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 { ExpansionController, State } = require('../src/controller/expansionController');
const { TerritoryModel } = require('../src/core/territoryModel');
const { defaultConfig } = require('../src/config/expansionConfig');
const { Logger } = require('../src/util/logger');
const { FakeBot } = require('./helpers/fakeBot');
const chunkPos = require('../src/core/chunkPos');

/** 假寻路服务 */
class FakePathing {
  constructor() {
    this.calcFailed = false;
    this.currentTarget = null;
    this._pathing = false;
    this.pathCalls = 0;
  }

  pathTo(chunk) {
    this.currentTarget = chunk;
    this._pathing = true;
    this.pathCalls++;
    return true;
  }

  cancel() {
    this._pathing = false;
  }

  isPathing() {
    return this._pathing;
  }

  applyConfig() {}
}

/** 假数据服务 */
class FakeDataService {
  constructor(model) {
    this.model = model;
    this.sessionClaims = [];
    this.refreshCount = 0;
  }

  getModel() {
    return this.model;
  }

  setSelectedStateName(name) {
    this.model.setSelfStateName(name);
  }

  addSessionClaim(chunk) {
    this.sessionClaims.push(chunk);
    this.model.addSessionClaim(chunk);
  }

  refreshAsync() {
    this.refreshCount++;
  }

  async detectStateByPlayer() {
    return null;
  }

  snapshot() {
    return { stateCount: this.model.stateCount };
  }
}

/** 假机器人管理器 */
class FakeBotManager {
  constructor(bot, model) {
    this.bot = bot;
    this.pathing = new FakePathing();
    this.grim = null;
    this.eater = null;
    this.boat = null;
    this.guard = null;
    this.connection = { username: 'TestBot' };
    this.commands = [];
    this._model = model;
  }

  isReady() {
    return true;
  }

  isSpawned() {
    return true;
  }

  sendCommand(command) {
    if (command) this.commands.push(command);
  }

  applyConfig() {}
}

/**
 * 搭建被测环境。
 * @param {{states?: Record<string, Array<[number, number]>>, selfName?: string, x?: number, z?: number, config?: object}} [options]
 */
function setup(options) {
  const opts = options || {};
  const states = opts.states || { A: [[0, 0]] };
  const map = new Map();
  for (const [name, coords] of Object.entries(states)) {
    map.set(name, {
      name,
      capital: { x: coords[0][0], z: coords[0][1] },
      chunks: new Set(coords.map(([x, z]) => chunkPos.key(x, z))),
      color: 0x75bd20
    });
  }
  const model = new TerritoryModel(map);
  if (opts.selfName) model.setSelfStateName(opts.selfName);

  const bot = new FakeBot({ x: (opts.x === undefined ? 0 : opts.x) * 16 + 8, y: 64, z: (opts.z === undefined ? 0 : opts.z) * 16 + 8 });
  const botManager = new FakeBotManager(bot, model);
  const dataService = new FakeDataService(model);
  const logger = new Logger({ echo: false });
  const controller = new ExpansionController({ botManager, dataService, logger });

  const config = defaultConfig();
  config.enforceClaimTime = false;
  config.autoEat = false;
  config.autoAttack = false;
  config.durabilityGuard = false;
  config.autoBoat = false;
  Object.assign(config, opts.config || {});

  return { controller, botManager, dataService, model, bot, logger, config };
}

test('start：自动识别所在邦国并下发开垦模式指令', async () => {
  const { controller, botManager, config, model } = setup({ selfName: '' });
  const ok = await controller.start(config);
  assert.strictEqual(ok, true);
  assert.strictEqual(model.selfStateNameValue(), 'A', '应自动识别为所在邦国 A');
  assert.ok(botManager.commands.includes('u claimmode'), '应发送开垦模式指令');
  assert.strictEqual(controller.state, State.PATHING);
  assert.ok(controller.target, '应选出目标区块');
  assert.strictEqual(botManager.pathing.pathCalls, 1, '应下发一次寻路');
});

test('start：指定不存在的邦国时拒绝启动', async () => {
  const { controller, config } = setup();
  config.stateName = '不存在的国';
  const ok = await controller.start(config);
  assert.strictEqual(ok, false);
  assert.strictEqual(controller.state, State.IDLE);
  assert.ok(controller.status.includes('不存在'));
});

test('start：不在开垦时段时登记等待自动开始', async () => {
  const { controller, config } = setup();
  const hour = new Date().getHours();
  config.enforceClaimTime = true;
  // 构造一个一定不含当前小时的时段
  config.claimStartHour = (hour + 2) % 24;
  config.claimEndHour = (hour + 3) % 24;
  if (config.claimStartHour >= config.claimEndHour) config.claimEndHour = config.claimStartHour + 1;

  const ok = await controller.start(config);
  assert.strictEqual(ok, true);
  assert.strictEqual(controller.isWaitingForClaimTime(), true);
  assert.strictEqual(controller.state, State.IDLE);
  assert.ok(controller.status.includes('等待开垦时段'));
});

test('到达目标区块后进入等待开垦状态', async () => {
  const { controller, botManager, config, bot } = setup();
  await controller.start(config);
  const target = controller.target;
  // 把机器人移到目标区块
  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.tick();
  assert.strictEqual(controller.state, State.WAITING);
  assert.strictEqual(botManager.pathing.isPathing(), false, '到达后应取消寻路');
});

test('开垦成功消息推进计数并进入 SUCCESS', async () => {
  const { controller, config, bot, dataService } = setup();
  await controller.start(config);
  const target = controller.target;
  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.tick();
  assert.strictEqual(controller.state, State.WAITING);

  controller.monitor.onChat(`疆土(${target.x},${target.z}) [${target.x * 16},${target.z * 16}] 已为你的邦国开拓`);
  assert.strictEqual(controller.completedClaims, 1);
  assert.strictEqual(controller.state, State.SUCCESS);
  assert.strictEqual(dataService.sessionClaims.length, 1);
  assert.ok(dataService.refreshCount > 0, '占领成功后应触发一次地图刷新');
});

test('同一区块的重复成功消息只计一次', async () => {
  const { controller, config, bot } = setup();
  await controller.start(config);
  const target = controller.target;
  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.tick();
  const message = `疆土(${target.x},${target.z}) [0,0] 已为你的邦国开拓`;
  controller.monitor.onChat(message);
  controller.monitor.onChat(message);
  assert.strictEqual(controller.completedClaims, 1);
});

test('通用成功消息只在机器人确实位于目标区块时生效', async () => {
  const { controller, config, bot } = setup();
  await controller.start(config);
  const target = controller.target;
  // 机器人不在目标区块上
  bot.entity.position.x = (target.x + 5) * 16;
  bot.entity.position.z = (target.z + 5) * 16;
  controller.playerChunk = { x: target.x + 5, z: target.z + 5 };
  controller.monitor.onChat('你的疆土已开拓');
  assert.strictEqual(controller.completedClaims, 0, '不在目标区块时不得计为成功');

  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.playerChunk = { x: target.x, z: target.z };
  controller.monitor.onChat('你的疆土已开拓');
  assert.strictEqual(controller.completedClaims, 1);
});

test('目标已被他人占领时跳过', async () => {
  const { controller, config, model } = setup();
  await controller.start(config);
  const target = controller.target;
  // 地图刷新后该区块变成他国领土
  model.allClaimedChunks().add(chunkPos.key(target.x, target.z));
  controller.tick();
  assert.strictEqual(controller.state, State.NEXT);
  assert.strictEqual(controller.status, '跳过已占领区块');
});

test('目标不再与己方领土接壤时跳过', async () => {
  const { controller, config, model } = setup();
  await controller.start(config);
  const target = controller.target;
  // 清空己方领土，使目标不再接壤
  model.selfState().chunks.clear();
  controller.tick();
  assert.strictEqual(controller.state, State.NEXT);
  assert.strictEqual(controller.status, '跳过不接壤区块');
});

test('寻路超时会重新寻路，重试耗尽后走两步', async () => {
  const { controller, botManager, config } = setup({ config: { waitTimeoutSeconds: 5, retries: 2, sideStepMaxRounds: 2 } });
  await controller.start(config);
  const callsAfterStart = botManager.pathing.pathCalls;
  // 把阶段开始时间拨回 10 秒前，触发超时
  controller.stageStartedMillis = Date.now() - 10000;
  controller.tick();
  assert.strictEqual(controller.retryCount, 1);
  assert.strictEqual(controller.state, State.PATHING, '未耗尽重试时应继续寻路');
  assert.strictEqual(botManager.pathing.pathCalls, callsAfterStart + 1);

  controller.stageStartedMillis = Date.now() - 10000;
  controller.tick();
  assert.strictEqual(controller.sideStepping, true, '重试耗尽后应进入走两步阶段');
  assert.strictEqual(controller.sideStepCount, 1);
});

test('连续超时累计达到阈值时回城', async () => {
  const { controller, botManager, config } = setup({
    config: { waitTimeoutSeconds: 5, retries: 1, sideStepMaxRounds: 0, returnThresholdSeconds: 1 }
  });
  await controller.start(config);
  controller.stageStartedMillis = Date.now() - 10000;
  controller.tick(); // 第一次超时：重试次数达到上限（retries=1），走两步轮数为 0 → giveUp → 回城
  assert.strictEqual(controller.state, State.RETURNING);
  assert.ok(botManager.commands.includes('u return'), '应发送回城指令');
});

test('回城等待结束后重新规划（非耐久保护触发）', async () => {
  const { controller, config } = setup({
    config: { waitTimeoutSeconds: 5, retries: 1, sideStepMaxRounds: 0, returnThresholdSeconds: 1, returnWaitSeconds: 1 }
  });
  await controller.start(config);
  controller.stageStartedMillis = Date.now() - 10000;
  controller.tick();
  assert.strictEqual(controller.state, State.RETURNING);
  controller.returnStartMillis = Date.now() - 5000;
  controller.tick();
  assert.strictEqual(controller.state, State.PATHING, '回城完成后应重新规划并开始寻路');
  assert.strictEqual(controller.consecutiveTimeoutMillis, 0, '连续超时计数应清零');
});

test('耐久保护触发回城并在传送后停止任务', async () => {
  const { controller, botManager, config } = setup({ config: { durabilityGuard: true, returnWaitSeconds: 1 } });
  botManager.guard = {
    check: () => ({ slot: 0, name: '主手', percent: 5, itemName: 'diamond_sword' }),
    reset: () => {}
  };
  await controller.start(config);
  controller.tick();
  assert.strictEqual(controller.state, State.RETURNING);
  assert.ok(botManager.commands.includes('u return'));

  controller.returnStartMillis = Date.now() - 5000;
  controller.tick();
  assert.strictEqual(controller.state, State.STOPPED, '耐久保护回城后应停止任务');
});

test('达成目标数量后进入 COMPLETE', async () => {
  const { controller, config, bot } = setup({ config: { targetCount: 1 } });
  await controller.start(config);
  const target = controller.target;
  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.tick(); // → WAITING
  controller.monitor.onChat(`疆土(${target.x},${target.z}) [0,0] 已为你的邦国开拓`); // → SUCCESS
  controller.tick(); // SUCCESS → NEXT
  controller.tick(); // NEXT → 达成目标 → COMPLETE
  assert.strictEqual(controller.state, State.COMPLETE);
  assert.strictEqual(controller.completedClaims, 1);
  assert.strictEqual(controller.isRunning(), false);
});

test('stop 后进入 STOPPED 且不再运行', async () => {
  const { controller, botManager, config } = setup();
  await controller.start(config);
  controller.stop();
  assert.strictEqual(controller.state, State.STOPPED);
  assert.strictEqual(controller.isRunning(), false);
  assert.strictEqual(botManager.pathing.isPathing(), false, '停止时应取消寻路');
});

test('stop 可取消「等待自动开始」', async () => {
  const { controller, config } = setup();
  const hour = new Date().getHours();
  config.enforceClaimTime = true;
  config.claimStartHour = (hour + 2) % 24;
  config.claimEndHour = (hour + 3) % 24;
  if (config.claimStartHour >= config.claimEndHour) config.claimEndHour = config.claimStartHour + 1;
  await controller.start(config);
  assert.strictEqual(controller.isWaitingForClaimTime(), true);
  controller.stop();
  assert.strictEqual(controller.isWaitingForClaimTime(), false);
  assert.strictEqual(controller.state, State.IDLE);
});

test('自动游泳：水中按住跳跃键，离开水后松开', async () => {
  const { controller, botManager, config, bot } = setup();
  botManager.grim = {
    controls: {},
    setControlState(control, state) { this.controls[control] = state; },
    setLook() {}
  };
  await controller.start(config);
  bot.entity.isInWater = true;
  controller.tick();
  assert.strictEqual(botManager.grim.controls.jump, true, '水中应按住跳跃键上浮');

  bot.entity.isInWater = false;
  controller.tick();
  assert.strictEqual(botManager.grim.controls.jump, false, '离水后应松开跳跃键');
});

test('船上不自动游泳', async () => {
  const { controller, botManager, config, bot } = setup();
  botManager.grim = {
    controls: {},
    setControlState(control, state) { this.controls[control] = state; },
    setLook() {}
  };
  await controller.start(config);
  bot.entity.isInWater = true;
  bot.vehicle = { id: 1 };
  controller.tick();
  assert.notStrictEqual(botManager.grim.controls.jump, true, '坐船时不应按跳跃键');
});

test('snapshot 暴露任务状态供控制台展示', async () => {
  const { controller, config } = setup();
  await controller.start(config);
  const snapshot = controller.snapshot();
  assert.strictEqual(snapshot.running, true);
  assert.strictEqual(snapshot.state, State.PATHING);
  assert.ok(snapshot.target);
  assert.strictEqual(snapshot.completedClaims, 0);
  assert.strictEqual(snapshot.withinClaimTime, true);
  assert.strictEqual(snapshot.claimModeSent, true);
});

test('exportLogs 写出状态摘要与全部日志', async () => {
  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'autostore-log-'));
  const file = path.join(dir, 'debug.log');
  const { controller, config } = setup();
  await controller.start(config);
  const result = controller.exportLogs(file);
  assert.strictEqual(result, file);
  const content = fs.readFileSync(file, 'utf8');
  assert.ok(content.includes('AutoStore Bot 调试日志'));
  assert.ok(content.includes('状态:'));
  assert.ok(content.includes('开始自动扩地'));
  fs.rmSync(dir, { recursive: true, force: true });
});

test('未启动任务时 tick 不做任何事', () => {
  const { controller } = setup();
  assert.doesNotThrow(() => controller.tick());
  assert.strictEqual(controller.state, State.IDLE);
});

test('规划队列为空时直接进入 COMPLETE', async () => {
  // 己方领土被完全包围且无空位：构造一个只有 1 个区块、四周全被他国占领的局面
  const { controller, config } = setup({
    states: {
      A: [[0, 0]],
      B: [[1, 0], [-1, 0], [0, 1], [0, -1]]
    },
    selfName: 'A'
  });
  await controller.start(config);
  assert.strictEqual(controller.state, State.COMPLETE);
  assert.strictEqual(controller.status, '没有可用的相邻无主区块');
});

// ==================== 多机器人：邦国归属与开拓日志 ====================

test('start 把识别到的邦国固化到 stateName，不依赖全局 selfStateName', async () => {
  const { controller, config } = setup({ selfName: 'A' });
  await controller.start(config);
  assert.strictEqual(controller.stateName, 'A');
  assert.strictEqual(controller.config.stateName, 'A', '应写回任务配置供规划器使用');
});

test('两个机器人各自开拓不同邦国时互不覆盖', async () => {
  const map = new Map([
    ['A', { name: 'A', capital: { x: 0, z: 0 }, chunks: new Set([chunkPos.key(0, 0)]), color: 0x75bd20 }],
    ['B', { name: 'B', capital: { x: 20, z: 20 }, chunks: new Set([chunkPos.key(20, 20)]), color: 0xff43de }]
  ]);
  const model = new TerritoryModel(map);
  const logger = new Logger({ echo: false });

  const makeController = (name) => {
    const bot = new FakeBot({ x: 0, y: 64, z: 0 });
    const botManager = new FakeBotManager(bot, model);
    botManager.connection = { username: name };
    const dataService = new FakeDataService(model);
    const controller = new ExpansionController({ botManager, dataService, logger, botId: name, botName: name });
    const config = defaultConfig();
    config.enforceClaimTime = false;
    config.autoEat = false;
    config.autoAttack = false;
    config.durabilityGuard = false;
    return { controller, config, model };
  };

  const first = makeController('BotA');
  first.config.stateName = 'A';
  const second = makeController('BotB');
  second.config.stateName = 'B';

  await first.controller.start(first.config);
  await second.controller.start(second.config);

  // 全局 selfStateName 会被最后启动的机器人改写，但各控制器仍按自己的邦国工作
  assert.strictEqual(first.controller.stateName, 'A');
  assert.strictEqual(second.controller.stateName, 'B');

  first.controller.playerChunk = { x: 0, z: 0 };
  second.controller.playerChunk = { x: 20, z: 20 };
  first.controller.monitor.onChat('疆土(0,1) [8,24] 已为你的邦国开拓');
  second.controller.monitor.onChat('疆土(20,21) [328,344] 已为你的邦国开拓');

  assert.ok(model.state('A').chunks.has(chunkPos.key(0, 1)), 'A 的新占领应记到 A 名下');
  assert.ok(!model.state('A').chunks.has(chunkPos.key(20, 21)));
  assert.ok(model.state('B').chunks.has(chunkPos.key(20, 21)), 'B 的新占领应记到 B 名下');
});

test('占领成功时写入开拓日志（含玩家、区块、时间与来源）', async () => {
  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'autostore-claimlog-'));
  const { ExpansionLog } = require('../src/core/expansionLog');
  const expansionLog = new ExpansionLog({ filePath: path.join(dir, 'expansion-log.jsonl') });

  const { controller, config, bot } = setup();
  controller.expansionLog = expansionLog;
  controller.botId = 'BotA';
  controller.botName = 'BotA';
  await controller.start(config);
  const target = controller.target;
  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.tick();

  const before = Date.now();
  controller.monitor.onChat(`疆土(${target.x},${target.z}) [${target.x * 16 + 1},${target.z * 16 + 2}] 已为你的邦国开拓`);

  const rows = expansionLog.list();
  assert.strictEqual(rows.length, 1);
  const entry = rows[0];
  assert.strictEqual(entry.bot, 'BotA');
  assert.strictEqual(entry.botId, 'BotA');
  assert.strictEqual(entry.state, 'A');
  assert.strictEqual(entry.cx, target.x);
  assert.strictEqual(entry.cz, target.z);
  assert.strictEqual(entry.bx, target.x * 16 + 1);
  assert.strictEqual(entry.bz, target.z * 16 + 2);
  assert.strictEqual(entry.source, 'chat');
  assert.ok(entry.t >= before && entry.t <= Date.now());
  assert.strictEqual(entry.sessionCount, 1);

  fs.rmSync(dir, { recursive: true, force: true });
});

test('无坐标的通用成功消息记为 chat-generic 来源', async () => {
  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'autostore-claimlog2-'));
  const { ExpansionLog } = require('../src/core/expansionLog');
  const expansionLog = new ExpansionLog({ filePath: path.join(dir, 'expansion-log.jsonl') });

  const { controller, config, bot } = setup();
  controller.expansionLog = expansionLog;
  await controller.start(config);
  const target = controller.target;
  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.tick();
  controller.monitor.onChat('你的疆土已开拓');

  const rows = expansionLog.list();
  assert.strictEqual(rows.length, 1);
  assert.strictEqual(rows[0].source, 'chat-generic');
  assert.strictEqual(rows[0].bx, null);
  fs.rmSync(dir, { recursive: true, force: true });
});

test('同一区块重复成功只记一条开拓日志', async () => {
  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'autostore-claimlog3-'));
  const { ExpansionLog } = require('../src/core/expansionLog');
  const expansionLog = new ExpansionLog({ filePath: path.join(dir, 'expansion-log.jsonl') });

  const { controller, config, bot } = setup();
  controller.expansionLog = expansionLog;
  await controller.start(config);
  const target = controller.target;
  bot.entity.position.x = target.x * 16 + 8;
  bot.entity.position.z = target.z * 16 + 8;
  controller.tick();
  const message = `疆土(${target.x},${target.z}) [0,0] 已为你的邦国开拓`;
  controller.monitor.onChat(message);
  controller.monitor.onChat(message);

  assert.strictEqual(expansionLog.list().length, 1);
  fs.rmSync(dir, { recursive: true, force: true });
});