const path = require('path');
const fs = require('fs');

describe('whatsapp-leads.js module', () => {
  const scriptPath = path.join(__dirname, '../src/whatsapp-leads.js');

  test('script file exists', () => {
    expect(fs.existsSync(scriptPath)).toBe(true);
  });

  test('exports normalizePhone function', () => {
    const script = require(scriptPath);
    expect(typeof script.normalizePhone).toBe('function');
  });

  test('exports isGroupChat function', () => {
    const script = require(scriptPath);
    expect(typeof script.isGroupChat).toBe('function');
  });
});

describe('WhatsApp message filtering', () => {
  const scriptPath = path.join(__dirname, '../src/whatsapp-leads.js');

  test('filters out group messages (only 1:1 chats)', () => {
    const groupMessage = {
      key: { remoteJid: '1234567890@g group' },
      message: { conversation: 'Group message' },
    };

    const personalMessage = {
      key: { remoteJid: '1234567890@c.us' },
      message: { conversation: 'Personal message' },
    };

    expect(isGroupChat(groupMessage)).toBe(true);
    expect(isGroupChat(personalMessage)).toBe(false);
  });

  test('normalizes phone numbers', () => {
    const script = require(scriptPath);
    expect(script.normalizePhone('+5521987654321')).toBe('+5521987654321');
    expect(script.normalizePhone('21987654321')).toBe('+21987654321');
    expect(script.normalizePhone('')).toBe('');
  });
});

function isGroupChat(message) {
  return message.key.remoteJid?.includes('@g');
}