'use strict';

const test = require('node:test');
const assert = require('node:assert');

const { flattenChunks, boundsOf, timingSafeEqual, WebConsole } = require('../src/web/server');
const { TerritoryModel } = require('../src/core/territoryModel');
const { defaultConfig } = require('../src/config/expansionConfig');
const { Logger } = require('../src/util/logger');
const chunkPos = require('../src/core/chunkPos');

test('flattenChunks 压平为 [x1,z1,x2,z2,...]', () => {
  const keys = new Set([chunkPos.key(1, 2), chunkPos.key(-3, 4)]);
  const flat = flattenChunks(keys);
  assert.strictEqual(flat.length, 4);
  const pairs = [];
  for (let i = 0; i < flat.length; i += 2) pairs.push([flat[i], flat[i + 1]]);
  pairs.sort((a, b) => a[0] - b[0]);
  assert.deepStrictEqual(pairs, [[-3, 4], [1, 2]]);
});

test('boundsOf 计算外接矩形并对空集合返回 null', () => {
  const keys = new Set([chunkPos.key(1, 2), chunkPos.key(-3, 4), chunkPos.key(5, -6)]);
  assert.deepStrictEqual(boundsOf(keys), { minX: -3, maxX: 5, minZ: -6, maxZ: 4 });
  assert.strictEqual(boundsOf(new Set()), null);
});

test('timingSafeEqual 只接受等长且完全相同的字符串', () => {
  assert.strictEqual(timingSafeEqual('abc', 'abc'), true);
  assert.strictEqual(timingSafeEqual('abc', 'abd'), false);
  assert.strictEqual(timingSafeEqual('abc', 'abcd'), false);
  assert.strictEqual(timingSafeEqual(undefined, 'abc'), false);
});

/** 搭建一个使用桩依赖的控制台实例 */
function setupConsole() {
  const map = new Map([[
    'A',
    {
      name: 'A',
      capital: { x: 0, z: 0 },
      chunks: new Set([chunkPos.key(0, 0), chunkPos.key(1, 0)]),
      color: 0x2f81f7
    }
  ]]);
  const model = new TerritoryModel(map);
  model.setSelfStateName('A');
  model.addSessionClaim({ x: 1, z: 0 });

  const logger = new Logger({ echo: false });
  const botManager = {
    snapshot: () => ({ state: 'online', username: 'TestBot' }),
    sendCommand: () => {}
  };
  const controller = {
    target: { x: 2, z: 0 },
    playerChunk: { x: 0, z: 0 },
    snapshot: () => ({ state: 'PATHING', running: true }),
    exportLogs: () => 'data/debug.log',
    stop: () => {},
    start: async () => true,
    status: '测试中'
  };
  const dataService = {
    getModel: () => model,
    snapshot: () => ({ stateCount: 1, claimedChunks: 2 }),
    refreshAsync: () => {},
    fetchAllTerritoryOnce: async () => ({ ok: true, message: '已拉取 0 个区块' })
  };
  const config = defaultConfig();
  const webConsole = new WebConsole({
    botManager,
    controller,
    dataService,
    logger,
    getConfig: () => config,
    applyConfig: (next) => next
  }, { host: '127.0.0.1', port: 0 });
  return { webConsole, model, logger, controller };
}

test('mapPayload 返回己方 / 会话 / 飞地 / 目标与各邦国摘要', () => {
  const { webConsole } = setupConsole();
  const payload = webConsole.mapPayload(false);
  assert.strictEqual(payload.selfState, 'A');
  assert.strictEqual(payload.self.length, 4, '2 个区块 → 4 个数字');
  assert.strictEqual(payload.session.length, 2);
  assert.deepStrictEqual(payload.target, { x: 2, z: 0 });
  assert.strictEqual(payload.states.length, 1);
  assert.strictEqual(payload.states[0].name, 'A');
  assert.strictEqual(payload.states[0].color, '#2f81f7');
  assert.strictEqual(payload.states[0].count, 2);
  assert.strictEqual(payload.otherChunks, undefined, '默认不返回全量他国区块');
});

test('mapPayload(full) 额外返回他国区块', () => {
  const { webConsole, model } = setupConsole();
  model.states.set('B', {
    name: 'B',
    capital: { x: 9, z: 9 },
    chunks: new Set([chunkPos.key(9, 9)]),
    color: 0xff43de
  });
  const payload = webConsole.mapPayload(true);
  assert.strictEqual(payload.full, true);
  assert.strictEqual(payload.otherChunks.length, 1);
  assert.strictEqual(payload.otherChunks[0].name, 'B');
  assert.strictEqual(payload.otherChunks[0].color, '#ff43de');
});

test('statusPayload 汇总 bot / 任务 / 数据源状态', () => {
  const { webConsole } = setupConsole();
  const payload = webConsole.statusPayload();
  assert.strictEqual(payload.bot.state, 'online');
  assert.strictEqual(payload.task.state, 'PATHING');
  assert.strictEqual(payload.data.stateCount, 1);
  assert.strictEqual(payload.claimTime.start, 11);
  assert.strictEqual(payload.claimTime.end, 22);
});

test('HTTP 接口：/api/status、/api/config、/api/map 可访问', async () => {
  const { webConsole } = setupConsole();
  await webConsole.start();
  const base = webConsole.baseUrl();
  try {
    const status = await fetch(base + '/api/status').then((r) => r.json());
    assert.strictEqual(status.ok, true);
    assert.strictEqual(status.data.bot.state, 'online');

    const config = await fetch(base + '/api/config').then((r) => r.json());
    assert.strictEqual(config.ok, true);
    assert.strictEqual(config.data.strategy, 1);

    const map = await fetch(base + '/api/map?full=1').then((r) => r.json());
    assert.strictEqual(map.ok, true);
    assert.strictEqual(map.data.full, true);

    const html = await fetch(base + '/').then((r) => r.text());
    assert.ok(html.includes('AutoStore Bot'), '首页应返回控制台 HTML');
  } finally {
    await webConsole.stop();
  }
});

test('HTTP 接口：配置令牌后拒绝无令牌的 API 请求，但静态资源仍可加载', async () => {
  const { webConsole } = setupConsole();
  webConsole.token = 'secret-token';
  await webConsole.start();
  const base = webConsole.baseUrl();
  try {
    const unauthorized = await fetch(base + '/api/status');
    assert.strictEqual(unauthorized.status, 401);

    const authorized = await fetch(base + '/api/status?token=secret-token');
    assert.strictEqual(authorized.status, 200);

    const viaHeader = await fetch(base + '/api/status', { headers: { 'X-Auth-Token': 'secret-token' } });
    assert.strictEqual(viaHeader.status, 200);

    // 静态资源不带令牌也必须能加载，否则浏览器里控制台页面会缺样式 / 缺脚本
    const html = await fetch(base + '/');
    assert.strictEqual(html.status, 200);
    const css = await fetch(base + '/style.css');
    assert.strictEqual(css.status, 200);
    const js = await fetch(base + '/app.js');
    assert.strictEqual(js.status, 200);
  } finally {
    await webConsole.stop();
  }
});

test('HTTP 接口：POST /api/config 会走 applyConfig 并返回生效配置', async () => {
  const { webConsole } = setupConsole();
  await webConsole.start();
  const base = webConsole.baseUrl();
  try {
    const response = await fetch(base + '/api/config', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ strategy: 4, targetCount: 12 })
    }).then((r) => r.json());
    assert.strictEqual(response.ok, true);
    assert.strictEqual(response.data.strategy, 4);
    assert.strictEqual(response.data.targetCount, 12);
    // 未提供的字段保持默认
    assert.strictEqual(response.data.retries, 2);
  } finally {
    await webConsole.stop();
  }
});

test('HTTP 接口：POST /api/command 缺参数时返回 400', async () => {
  const { webConsole } = setupConsole();
  await webConsole.start();
  const base = webConsole.baseUrl();
  try {
    const response = await fetch(base + '/api/command', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({})
    });
    assert.strictEqual(response.status, 400);
  } finally {
    await webConsole.stop();
  }
});