import { test } from 'node:test';
import assert from 'node:assert/strict';
import { join } from 'node:path';
import { convertLayer, convertAll } from '../ui-migration/convert.mjs';
import { loadSource } from '../ui-migration/gameabc-source.mjs';
import { imageBuckets } from '../ui-migration/buckets.mjs';
import { ROOT } from '../lib/paths.mjs';

const REAL_SOURCE = join(ROOT, '..', 'projects', 'Game_Surface_3', 'output');

function tinySource() {
  const objects = new Map([
    [1, { ObjectID: 1, ObjectType: 2, ObjectName: '背景', Left: 0, Top: 0, Width: 1280, Height: 720,
          BelongLayerID: 2, IndexOfLayer: 1, ImageFileID: 1, FrameStyle: 0, FrameIndex: 0,
          L9: 0, T9: 0, R9: 0, B9: 0, GroupID: 5, VoiceFileID: 0, TimerInterval: 0, events: [] }],
    [2, { ObjectID: 2, ObjectType: 2, ObjectName: '按钮', Left: 320, Top: 200, Width: 150, Height: 70,
          BelongLayerID: 2, IndexOfLayer: 2, ImageFileID: 2, FrameStyle: 0, FrameIndex: 5,
          L9: 12, T9: 8, R9: 12, B9: 8, GroupID: 5, VoiceFileID: 0, TimerInterval: 0,
          events: ['mousedown'] }],
    [3, { ObjectID: 3, ObjectType: 4, ObjectName: '昵称文字', Left: 100, Top: 50, Width: 76, Height: 25,
          BelongLayerID: 2, IndexOfLayer: 3, ImageFileID: 0, FrameStyle: 0, FrameIndex: 0,
          L9: 0, T9: 0, R9: 0, B9: 0, GroupID: 5, VoiceFileID: 0, TimerInterval: 0, events: [] }],
  ]);
  return {
    objects,
    layers: [{ layerId: 2, name: 'Login_Layer', objectIds: [1, 2, 3] }],
    groups: [{ groupId: 5, objectIds: [1, 2, 3] }],
    images: new Map([
      [1, { id: 1, bmp: '00001.png', w: 1, h: 1, frame_all: 1, w1: 1280, h1: 720, w_all: 1280, h_all: 720 }],
      [2, { id: 2, bmp: '00014.png', w: 3, h: 4, frame_all: 12, w1: 150, h1: 70, w_all: 450, h_all: 280 }],
    ]),
  };
}

test('convertLayer 产出层元信息与 bucket', () => {
  const s = tinySource();
  const doc = convertLayer(s, s.layers[0], imageBuckets(s));
  assert.equal(doc.layerId, 2);
  assert.equal(doc.name, 'Login_Layer');
  assert.equal(doc.bucket, 'login');
  assert.equal(doc.nodes.length, 3);
});

test('convertLayer 识别背景：层内首个 + 满屏 → stretch', () => {
  const s = tinySource();
  const doc = convertLayer(s, s.layers[0], imageBuckets(s));
  assert.equal(doc.backgroundNodeId, 1);
  const bg = doc.nodes.find((n) => n.id === 1);
  assert.equal(bg.flags.stretch, true);
  assert.equal(bg.widget.horizontal, 'stretch');
});

test('convertLayer 背景判定只认层内首个：非首位的满屏对象不算背景', () => {
  const s = tinySource();
  // 追加一个非首位、同样满屏的对象——用来钉住"首个 + 满屏"而非"只要满屏"的判定规则
  s.objects.set(4, {
    ObjectID: 4, ObjectType: 2, ObjectName: '第二张满屏图', Left: 0, Top: 0, Width: 1280, Height: 720,
    BelongLayerID: 2, IndexOfLayer: 4, ImageFileID: 1, FrameStyle: 0, FrameIndex: 0,
    L9: 0, T9: 0, R9: 0, B9: 0, GroupID: 5, VoiceFileID: 0, TimerInterval: 0, events: [],
  });
  s.layers[0].objectIds.push(4);
  s.groups[0].objectIds.push(4);

  const doc = convertLayer(s, s.layers[0], imageBuckets(s));
  assert.equal(doc.backgroundNodeId, 1, '背景仍应是层内首个对象');
  const second = doc.nodes.find((n) => n.id === 4);
  assert.equal(second.flags.stretch, false, '非首位的满屏对象不应被认作背景');
});

test('convertLayer 非背景对象用三区锚点与转换坐标', () => {
  const s = tinySource();
  const btn = convertLayer(s, s.layers[0], imageBuckets(s)).nodes.find((n) => n.id === 2);
  assert.deepEqual(btn.position, { x: -245, y: 125 });
  assert.deepEqual(btn.widget, { horizontal: 'center', horizontalCenter: -245 });
});

test('convertLayer 九宫格非零 → sliced 并带 slice 值', () => {
  const s = tinySource();
  const btn = convertLayer(s, s.layers[0], imageBuckets(s)).nodes.find((n) => n.id === 2);
  assert.equal(btn.sprite.type, 'sliced');
  assert.deepEqual(btn.sprite.slice, { left: 12, right: 12, top: 8, bottom: 8 });
});

test('convertLayer 多帧图节点带 frame 与 frameSet', () => {
  const s = tinySource();
  const btn = convertLayer(s, s.layers[0], imageBuckets(s)).nodes.find((n) => n.id === 2);
  assert.equal(btn.sprite.frame, 'atlas-login/00014_05.png');
  assert.deepEqual(btn.sprite.frameSet, { prefix: 'atlas-login/00014', count: 12, pad: 2 });
});

test('convertLayer Type4 转 label 且不带 sprite/样式字段', () => {
  const s = tinySource();
  const txt = convertLayer(s, s.layers[0], imageBuckets(s)).nodes.find((n) => n.id === 3);
  assert.equal(txt.kind, 'label');
  assert.equal(txt.sprite, undefined);
  assert.deepEqual(txt.size, { width: 76, height: 25 });
});

test('convertLayer 保留 legacy 承重字段', () => {
  const s = tinySource();
  const btn = convertLayer(s, s.layers[0], imageBuckets(s)).nodes.find((n) => n.id === 2);
  assert.equal(btn.legacy.objectId, 2);
  assert.equal(btn.legacy.imageFileId, 2);
  assert.equal(btn.legacy.frameIndex, 5);
  assert.equal(btn.legacy.groupId, 5);
  assert.equal(btn.legacy.left, 320);
  assert.equal(btn.legacy.top, 200);
  assert.deepEqual(btn.legacy.events, ['mousedown']);
});

test('convertLayer 帧号越界：回退帧 1、标记 flags.frameIndexOutOfRange、收集 warning', () => {
  const s = tinySource();
  // 追加一张 frame_all=2 的图，对象却写着 FrameIndex=3——复现真实数据里 9/40 那类越界
  s.images.set(3, { id: 3, bmp: '00099.png', w: 2, h: 1, frame_all: 2, w1: 50, h1: 50, w_all: 100, h_all: 50 });
  s.objects.set(4, {
    ObjectID: 4, ObjectType: 2, ObjectName: '越界帧对象', Left: 500, Top: 300, Width: 50, Height: 50,
    BelongLayerID: 2, IndexOfLayer: 4, ImageFileID: 3, FrameStyle: 0, FrameIndex: 3,
    L9: 0, T9: 0, R9: 0, B9: 0, GroupID: 5, VoiceFileID: 0, TimerInterval: 0, events: [],
  });
  s.layers[0].objectIds.push(4);
  s.groups[0].objectIds.push(4);

  const doc = convertLayer(s, s.layers[0], imageBuckets(s));
  const n = doc.nodes.find((node) => node.id === 4);
  assert.equal(n.flags.frameIndexOutOfRange, true, '越界应打标记');
  assert.equal(n.sprite.frame, 'atlas-login/00099_1.png', '越界应回退为帧 1，不得抛错也不得跳过节点');

  assert.equal(doc.warnings.length, 1);
  const w = doc.warnings[0];
  assert.equal(w.objectId, 4);
  assert.equal(w.layerId, 2);
  assert.equal(w.imageFileId, 3);
  assert.equal(w.frameIndex, 3);
  assert.equal(w.frameCount, 2);
  assert.equal(typeof w.reason, 'string');
  assert.ok(w.reason.length > 0, 'reason 必须可读，能定位到具体对象/图');
});

test('convertLayer 单帧图上的残留 FrameIndex 不产生 warning（frameCount<=1 本就与 FrameIndex 无关）', () => {
  const s = tinySource();
  // 单帧图（frame_all=1）却写着 FrameIndex=8——真实数据里 30/40 这一类，属无害残留
  s.images.set(3, { id: 3, bmp: '00088.png', w: 1, h: 1, frame_all: 1, w1: 50, h1: 50, w_all: 50, h_all: 50 });
  s.objects.set(4, {
    ObjectID: 4, ObjectType: 2, ObjectName: '单帧残留对象', Left: 500, Top: 300, Width: 50, Height: 50,
    BelongLayerID: 2, IndexOfLayer: 4, ImageFileID: 3, FrameStyle: 0, FrameIndex: 8,
    L9: 0, T9: 0, R9: 0, B9: 0, GroupID: 5, VoiceFileID: 0, TimerInterval: 0, events: [],
  });
  s.layers[0].objectIds.push(4);
  s.groups[0].objectIds.push(4);

  const doc = convertLayer(s, s.layers[0], imageBuckets(s));
  const n = doc.nodes.find((node) => node.id === 4);
  assert.equal(n.flags.frameIndexOutOfRange, false);
  assert.equal(n.sprite.frame, 'atlas-login/00088.png');
  assert.equal(doc.warnings.length, 0);
});

test('convertLayer 输出 groups 供父节点分组', () => {
  const s = tinySource();
  const doc = convertLayer(s, s.layers[0], imageBuckets(s));
  assert.deepEqual(doc.groups, [{ groupId: 5, nodeIds: [1, 2, 3] }]);
});

test('convertAll 的 manifest 含 ObjectID 全局索引（C 的承重依赖）', () => {
  const s = tinySource();
  const { manifest, warnings } = convertAll(s);
  assert.equal(manifest.designWidth, 1280);
  assert.deepEqual(manifest.objectIndex['2'], { layerId: 2, nodeId: 2 });
  assert.equal(manifest.layers.length, 1);
  assert.equal(manifest.layers[0].nodeCount, 3);
  assert.deepEqual(warnings, [], 'tinySource 本身没有越界帧，不应产生 warning');
});

test('convertAll 在真实数据上覆盖全部对象与界面（回归护栏）', () => {
  const { layers, manifest, warnings } = convertAll(loadSource(REAL_SOURCE));
  assert.equal(layers.length, 55, '界面数');
  const total = layers.reduce((s, l) => s + l.nodes.length, 0);
  assert.equal(total, 991, '节点总数必须等于对象总数——不得丢对象');
  assert.equal(Object.keys(manifest.objectIndex).length, 991, 'ObjectID 索引必须完整');
  assert.equal(warnings.length, 10, '已知的帧号越界对象必须恰为 10 个——数量漂移应被人工关注');
});