'use strict';

// 拖边缘改大小的几何用例（纯计算，不需要 Electron）：
//   node test/resize.test.js
// 无边框窗口里这段代码只有真鼠标拖拽才能触发，先用纯函数把它钉死，Windows 上就只剩「手感」要试。

const { computeBounds, MIN_SIZE } = require('../renderer/resize');

let passed = 0;
const failures = [];

function check(name, ok, detail) {
  if (ok) {
    passed += 1;
    console.log(`PASS  ${name}${detail ? `  [${detail}]` : ''}`);
  } else {
    failures.push(name);
    console.log(`FAIL  ${name}${detail ? `  [${detail}]` : ''}`);
  }
}

const start = { x: 400, y: 300, width: 520, height: 280 };
const same = (a, b) => a.x === b.x && a.y === b.y && a.width === b.width && a.height === b.height;

console.log('--- 单边 ---');
check('东边 +120：只有宽度变，左上角不动',
  same(computeBounds(start, 'e', 120, 0), { x: 400, y: 300, width: 640, height: 280 }));
check('南边 +60：只有高度变',
  same(computeBounds(start, 's', 0, 60), { x: 400, y: 300, width: 520, height: 340 }));
check('西边 -80：宽度增加 80，左边界左移 80',
  same(computeBounds(start, 'w', -80, 0), { x: 320, y: 300, width: 600, height: 280 }));
check('北边 -50：高度增加 50，上边界上移 50',
  same(computeBounds(start, 'n', 0, -50), { x: 400, y: 250, width: 520, height: 330 }));
check('东边往回拖 -100：窗口变窄，左上角不动',
  same(computeBounds(start, 'e', -100, 0), { x: 400, y: 300, width: 420, height: 280 }));

console.log('--- 四角 ---');
check('右下角 +40/+30：宽高同时增加',
  same(computeBounds(start, 'se', 40, 30), { x: 400, y: 300, width: 560, height: 310 }));
check('左上角 -40/-30：宽高增加且整体左上移',
  same(computeBounds(start, 'nw', -40, -30), { x: 360, y: 270, width: 560, height: 310 }));
check('右上角 +40/-30：宽度增加、上边界上移',
  same(computeBounds(start, 'ne', 40, -30), { x: 400, y: 270, width: 560, height: 310 }));
check('左下角 -40/+30：左边界左移、高度增加',
  same(computeBounds(start, 'sw', -40, 30), { x: 360, y: 300, width: 560, height: 310 }));

console.log('--- 最小尺寸 ---');
check('东边往死里拖：宽度停在 260', computeBounds(start, 'e', -9999, 0).width === MIN_SIZE.width);
check('南边往死里拖：高度停在 150', computeBounds(start, 's', 0, -9999).height === MIN_SIZE.height);
{
  const r = computeBounds(start, 'w', 9999, 0);
  check('西边往死里拖：宽度停在 260，且右边界不动（窗口不会被推走）',
    r.width === MIN_SIZE.width && r.x + r.width === start.x + start.width, JSON.stringify(r));
}
{
  const r = computeBounds(start, 'n', 0, 9999);
  check('北边往死里拖：高度停在 150，且下边界不动',
    r.height === MIN_SIZE.height && r.y + r.height === start.y + start.height, JSON.stringify(r));
}
{
  const r = computeBounds(start, 'nw', 9999, 9999);
  check('左上角往死里拖：宽高都停在最小值，右下角不动',
    r.width === MIN_SIZE.width && r.height === MIN_SIZE.height &&
    r.x + r.width === start.x + start.width && r.y + r.height === start.y + start.height, JSON.stringify(r));
}

console.log('--- 边界 ---');
check('位移为 0 时原样返回', same(computeBounds(start, 'e', 0, 0), start));
check('结果都是整数（避免 setBounds 收到小数后抖动）',
  Number.isInteger(computeBounds(start, 'e', 12.4, 0).width));
check('负坐标（窗口在主屏左侧）也能算',
  same(computeBounds({ x: -900, y: -200, width: 520, height: 280 }, 'w', -100, 0),
    { x: -1000, y: -200, width: 620, height: 280 }));

console.log('');
if (failures.length === 0) {
  console.log(`全部通过：${passed}/${passed}`);
  process.exit(0);
} else {
  console.log(`通过 ${passed}，失败 ${failures.length}：${failures.join('；')}`);
  process.exit(1);
}