import { describe, it, expect } from 'vitest';
import { readFileSync } from 'node:fs';
import { dirname, resolve } from 'node:path';
import { fileURLToPath } from 'node:url';
import { parseConfig, stripJsonComments } from '../src/configParser';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

describe('configParser', () => {
  it('应移除 -- 行注释并保持 JSON 可解析', () => {
    const raw = '{\n  -- 注释\n  "name": "demo" -- 行尾注释\n}';
    const stripped = stripJsonComments(raw);
    expect(stripped).not.toContain('-- 注释');
    expect(() => JSON.parse(stripped)).not.toThrow();
  });

  it('应能解析 demo.json', () => {
    const demoPath = resolve(__dirname, '..', 'public', 'demo.json');
    const text = readFileSync(demoPath, 'utf8');
    const config = parseConfig(text);

    expect(config.name).toBe('demo');
    expect(config.layers.length).toBeGreaterThan(0);
    expect(config.theme.colorPalettes['木']).toBe('#43A047');
    expect(config.layers.some((layer) => layer.type === 'centerIcon')).toBe(true);
    expect(config.layers.some((layer) => layer.type === 'degreeRing')).toBe(true);
  });

  it('缺少必填字段时应抛错', () => {
    const raw = '{ "background": "#000", "theme": { "colorPalettes": {} }, "layers": [] }';
    expect(() => parseConfig(raw)).toThrow('name 为必填字符串');
  });
});