import { describe, expect, it } from 'vitest';
import { flattenObject, importJson } from '../../src/importers/json-importer';
import { sourceMetadata } from './import-source-fixtures';

describe('JSON importer', () => {
  it('flattens nested objects and preserves arrays as JSON', () => {
    expect(flattenObject({ a: { b: 2 }, values: ['x', 'y'] })).toEqual({
      'a.b': 2,
      values: '["x","y"]'
    });
  });

  it('imports an object array as a tabular dataset', () => {
    const text = JSON.stringify([
      { id: 'RULE-1', finding: { title: 'Weak policy' }, severity: 'High' },
      { id: 'RULE-2', finding: { title: 'Legacy protocol' }, severity: 'Medium' }
    ]);
    const source = sourceMetadata('findings.json', text.length, 'application/json');

    const imported = importJson(source, text);

    expect(imported.format).toBe('JSON');
    expect(imported.sheets[0].rows[0]).toEqual(['id', 'finding.title', 'severity']);
    expect(imported.sheets[0].analysis.records).toHaveLength(2);
    expect(imported.sheets[0].analysis.records[0].title).toBe('Weak policy');
  });

  it('rejects malformed JSON', () => {
    const text = '{"finding":';
    const source = sourceMetadata('broken.json', text.length, 'application/json');

    expect(() => importJson(source, text)).toThrow(SyntaxError);
  });
});