import { tap, expect } from '@git.zone/tstest/tapbundle';
import { EInvoice } from '../../../ts/index.js';
import { InvoiceFormat } from '../../../ts/interfaces/common.js';
import { FormatDetector } from '../../../ts/formats/utils/format.detector.js';
import { CorpusLoader } from '../../helpers/corpus.loader.js';
import * as path from 'path';

/**
 * Test ID: CORP-05
 * Test Description: FatturaPA Corpus Processing
 * Priority: Medium
 * 
 * This test validates processing of Italian FatturaPA format files,
 * including structure validation and conversion capabilities.
 */

tap.test('CORP-05: FatturaPA Corpus Processing - should process Italian FatturaPA files', async () => {
  const fatturapaFiles = await CorpusLoader.loadCategory('FATTURAPA_OFFICIAL');

  if (fatturapaFiles.length === 0) {
    console.log('⚠ No FatturaPA files found in corpus - skipping test');
    return;
  }

  console.log(`Testing ${fatturapaFiles.length} FatturaPA files`);

  let detectedCount = 0;
  let unsupportedDecodeCount = 0;

  for (const file of fatturapaFiles) {
    const xmlBuffer = await CorpusLoader.loadFile(file.path);
    const xmlString = xmlBuffer.toString('utf-8');
    const fileName = path.basename(file.path);

    const format = FormatDetector.detectFormat(xmlString);
    expect(format).toEqual(InvoiceFormat.FATTURAPA);
    detectedCount++;

    try {
      await EInvoice.fromXml(xmlString);
      expect(true).toBeFalse();
    } catch (error) {
      const errorMessage = error instanceof Error ? error.message : String(error);
      expect(errorMessage.includes('FatturaPA decoder not yet implemented')).toBeTrue();
      unsupportedDecodeCount++;
      console.log(`✓ ${fileName}: Detection works and decode is explicitly unsupported`);
    }
  }

  expect(detectedCount).toEqual(fatturapaFiles.length);
  expect(unsupportedDecodeCount).toEqual(fatturapaFiles.length);
});

tap.start();