'use strict';
/**
 * 回归测试：图片条目复制到剪贴板
 *
 * 曾经的 bug：copyClipToClipboard 先 rowToClip(row) 再读 clip.image，
 * 但 rowToClip 产出的字段叫 imageBase64，没有 .image。
 * Buffer.from(undefined) 抛 TypeError，被 catch 吞掉 —— 所有图片记录
 * 的"复制"都静默失败，用户按 Ctrl+V 粘到的是上一次剪贴板里的东西。
 */
const assert = require('node:assert');
const { clipPayload } = require('../lib/clip-payload.js');

let passed = 0;
function check(name, fn) {
  try { fn(); console.log('  ok -', name); passed++; }
  catch (e) { console.error('  FAIL -', name, e.message); process.exitCode = 1; }
}

check('text row yields its text', () => {
  const p = clipPayload({ type: 'text', text: 'hello', image: null });
  assert.deepStrictEqual(p, { kind: 'text', text: 'hello' });
});

check('text row with null text yields empty string, not crash', () => {
  assert.deepStrictEqual(clipPayload({ type: 'text', text: null }), { kind: 'text', text: '' });
});

check('image row yields the raw BLOB as a Buffer', () => {
  const blob = Buffer.from([0x89, 0x50, 0x4e, 0x47]);
  const p = clipPayload({ type: 'image', text: null, image: blob });
  assert.strictEqual(p.kind, 'image');
  assert.ok(Buffer.isBuffer(p.buffer));
  assert.deepStrictEqual([...p.buffer], [0x89, 0x50, 0x4e, 0x47]);
});

check('image row survives a Uint8Array (what sqlite may hand back)', () => {
  const p = clipPayload({ type: 'image', image: new Uint8Array([1, 2, 3]) });
  assert.ok(Buffer.isBuffer(p.buffer));
  assert.deepStrictEqual([...p.buffer], [1, 2, 3]);
});

// 这条正是当年的失败模式：把 rowToClip 的产物喂进来（只有 imageBase64，没有 image）
check('a row missing the image column throws a clear error, not a TypeError', () => {
  const rowToClipShaped = { type: 'image', text: '', imageBase64: 'iVBORw0KGgo=', preview: '[图片]' };
  assert.throws(() => clipPayload(rowToClipShaped), (e) => {
    assert.ok(!(e instanceof TypeError), '不应是 Buffer.from(undefined) 那种 TypeError');
    assert.match(e.message, /图片数据为空/);
    return true;
  });
});

check('empty image blob is rejected', () => {
  assert.throws(() => clipPayload({ type: 'image', image: Buffer.alloc(0) }), /图片数据为空/);
});

check('missing row is rejected', () => {
  assert.throws(() => clipPayload(null), /记录不存在/);
});

check('unknown type is rejected', () => {
  assert.throws(() => clipPayload({ type: 'video' }), /未知的记录类型/);
});

console.log(`\n${passed} checks passed`);