site-mva-global-fret/js/form-handler.js

// ============================================
// MVA Global Fret — Form Handler
// HubSpot Portal ID : 148163754
// HubSpot Form GUID : 1d9b75c9-8b60-4966-aa18-4bf503452e9a
// ============================================

const HUBSPOT_PORTAL_ID = '148163754';
const HUBSPOT_FORM_GUID = '1d9b75c9-8b60-4966-aa18-4bf503452e9a';
// Clé de service HubSpot — lecture seule des contacts (crm.objects.contacts.read)
const HUBSPOT_SERVICE_KEY = 'pat-eu1-e3c92146-bb17-45fe-8d77-0c665fc4df3b';
const FORMSPREE_ID = 'mojrvokp';

document.addEventListener('DOMContentLoaded', () => {
  const form = document.getElementById('contactForm');
  if (form) setupContactForm(form);
});

// Génération basée sur le timestamp : impossible d'avoir deux fois le même numéro
function generateRefNumber() {
  const year = new Date().getFullYear();
  // Timestamp milliseconde → 6 derniers chiffres, toujours entre 100000 et 999999
  const ts = (Date.now() % 900000) + 100000;
  return `MVA-${year}-${ts}`;
}

// Vérifie si l'email existe déjà dans HubSpot (lecture seule — ne modifie rien)
async function checkExistingContact(email) {
  try {
    const res = await fetch(
      'https://api.hubapi.com/crm/v3/objects/contacts/search',
      {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'Authorization': `Bearer ${HUBSPOT_SERVICE_KEY}`
        },
        body: JSON.stringify({
          filterGroups: [{
            filters: [{
              propertyName: 'email',
              operator: 'EQ',
              value: email
            }]
          }],
          properties: ['firstname', 'lastname', 'email', 'reference_client']
        })
      }
    );
    if (!res.ok) return null;
    const data = await res.json();
    return data.total > 0 ? data.results[0].properties : null;
  } catch {
    // En cas d'erreur réseau : on laisse passer (ne pas bloquer l'inscription)
    return null;
  }
}

function setupContactForm(form) {
  form.addEventListener('submit', async (e) => {
    e.preventDefault();
    if (!validateForm(form)) return;

    setLoading(true);

    const email = form.email.value.trim();

    // ── VÉRIFICATION DOUBLON ──────────────────────────────────────────────────
    // Si le client existe déjà, on affiche uniquement un message informatif.
    // On ne soumet RIEN à HubSpot — la référence existante n'est JAMAIS modifiée.
    const existing = await checkExistingContact(email);
    if (existing) {
      setLoading(false);
      showAlreadyRegistered(existing);
      return; // ← arrêt complet, aucune soumission
    }
    // ─────────────────────────────────────────────────────────────────────────

    // Nouveau client : génération du numéro de référence unique
    const refNumber = generateRefNumber();

    const data = {
      firstname: form.firstname.value.trim(),
      lastname:  form.lastname.value.trim(),
      phone:     form.phone.value.trim(),
      email:     email,
      address:   form.address.value.trim(),
      reference_client: refNumber,
    };

    const results = await Promise.allSettled([
      submitToHubSpot(data),
      submitToFormspree(data),
    ]);

    const hubspotOk  = results[0].status === 'fulfilled';
    const formspreeOk = results[1].status === 'fulfilled';

    setLoading(false);

    if (hubspotOk || formspreeOk) {
      showSuccess(refNumber);
    } else {
      showError();
    }
  });
}

// ── SOUMISSION HUBSPOT ────────────────────────────────────────────────────────
async function submitToHubSpot(data) {
  const payload = {
    fields: [
      { name: 'firstname',         value: data.firstname },
      { name: 'lastname',          value: data.lastname  },
      { name: 'phone',             value: data.phone     },
      { name: 'email',             value: data.email     },
      { name: 'address',           value: data.address   },
      { name: 'reference_client',  value: data.reference_client },
    ],
    context: {
      pageUri:  window.location.href,
      pageName: document.title,
    },
  };

  const res = await fetch(
    `https://api.hsforms.com/submissions/v3/integration/submit/${HUBSPOT_PORTAL_ID}/${HUBSPOT_FORM_GUID}`,
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(payload),
    }
  );

  if (!res.ok) throw new Error(`HubSpot error: ${res.status}`);
  return res.json();
}

// ── SOUMISSION FORMSPREE (email de backup) ────────────────────────────────────
async function submitToFormspree(data) {
  if (FORMSPREE_ID === 'YOUR_FORMSPREE_ID') return;

  const res = await fetch(`https://formspree.io/f/${FORMSPREE_ID}`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
    body: JSON.stringify({
      nom:               data.lastname,
      prenom:            data.firstname,
      telephone:         data.phone,
      email:             data.email,
      adresse_livraison: data.address,
      reference_client:  data.reference_client,
    }),
  });

  if (!res.ok) throw new Error(`Formspree error: ${res.status}`);
  return res.json();
}

// ── NOTIFICATION DOUBLON (email interne seulement, sans toucher aux données) ──
async function notifyDuplicateViaFormspree(contact) {
  if (FORMSPREE_ID === 'YOUR_FORMSPREE_ID') return;
  try {
    await fetch(`https://formspree.io/f/${FORMSPREE_ID}`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
      body: JSON.stringify({
        _subject: `[MVA] Tentative double inscription — ${contact.firstname || ''} ${contact.lastname || ''}`,
        message: `Le client ${contact.firstname || ''} ${contact.lastname || ''} (${contact.email}) a tenté de s'inscrire à nouveau. Référence existante : ${contact.reference_client || 'non définie'}.`,
      }),
    });
  } catch { /* Ne pas bloquer l'interface si la notification échoue */ }
}

// ── VALIDATION ────────────────────────────────────────────────────────────────
function validateForm(form) {
  let valid = true;
  const lang = localStorage.getItem('mva-lang') || 'fr';
  const t = translations?.[lang]?.contact || {};

  const requiredMsg  = t.required     || 'Ce champ est obligatoire';
  const invalidEmail = t.invalidEmail || 'Adresse email invalide';
  const invalidPhone = t.invalidPhone || 'Numéro de téléphone invalide';

  const fields = ['firstname', 'lastname', 'phone', 'email', 'address'];
  fields.forEach(name => clearError(name));
  clearError('cgv');

  fields.forEach(name => {
    const el = form[name];
    if (!el.value.trim()) {
      showFieldError(name, requiredMsg);
      valid = false;
    }
  });

  const cgvBox = form['cgv'];
  if (cgvBox && !cgvBox.checked) {
    showFieldError('cgv', t.cgvRequired || 'Vous devez accepter les Conditions Générales de Vente.');
    valid = false;
  }

  if (form.email.value.trim() && !isValidEmail(form.email.value.trim())) {
    showFieldError('email', invalidEmail);
    valid = false;
  }

  if (form.phone.value.trim() && !isValidPhone(form.phone.value.trim())) {
    showFieldError('phone', invalidPhone);
    valid = false;
  }

  return valid;
}

function isValidEmail(email) {
  return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email);
}

function isValidPhone(phone) {
  return /^[+\d][\d\s\-().]{6,20}$/.test(phone);
}

// ── AFFICHAGE ─────────────────────────────────────────────────────────────────
function showFieldError(name, msg) {
  const el    = document.getElementById(`error-${name}`);
  const input = document.getElementById(name) || document.querySelector(`[name="${name}"]`);
  if (el)    el.textContent = msg;
  if (input) input.classList.add('error');
}

function clearError(name) {
  const el    = document.getElementById(`error-${name}`);
  const input = document.getElementById(name) || document.querySelector(`[name="${name}"]`);
  if (el)    el.textContent = '';
  if (input) input.classList.remove('error');
}

function setLoading(isLoading) {
  const btn  = document.getElementById('submitBtn');
  const txt  = document.getElementById('submitText');
  const form = document.getElementById('contactForm');
  const lang = localStorage.getItem('mva-lang') || 'fr';
  const t    = translations?.[lang]?.contact || {};

  if (!btn) return;
  btn.disabled = isLoading;
  if (txt) {
    txt.textContent = isLoading
      ? (t.submitLoading || 'Envoi en cours...')
      : (t.submitBtn    || "S'inscrire");
  }
  form?.classList.toggle('form-loading', isLoading);
}

function showSuccess(refNumber) {
  const successEl  = document.getElementById('formSuccess');
  const form       = document.getElementById('contactForm');
  const refDisplay = document.getElementById('refNumberDisplay');
  if (refDisplay && refNumber) refDisplay.textContent = refNumber;
  if (successEl) {
    successEl.classList.add('show');
    successEl.scrollIntoView({ behavior: 'smooth', block: 'center' });
  }
  if (form) form.style.display = 'none';
}

// Affiche le message "déjà client" — ne modifie AUCUNE donnée HubSpot
function showAlreadyRegistered(contact) {
  const lang = localStorage.getItem('mva-lang') || 'fr';
  const t    = translations?.[lang]?.contact || {};

  const alreadyEl  = document.getElementById('alreadyRegistered');
  const form       = document.getElementById('contactForm');
  const refDisplay = document.getElementById('existingRefDisplay');

  // Affiche la référence existante si disponible, sinon message de contact
  if (refDisplay) {
    refDisplay.textContent = contact.reference_client
      ? contact.reference_client
      : (t.alreadyRefUnknown || 'Contactez-nous pour retrouver votre référence.');
  }

  if (alreadyEl) {
    alreadyEl.classList.add('show');
    alreadyEl.scrollIntoView({ behavior: 'smooth', block: 'center' });
  }

  if (form) form.style.display = 'none';

  // Envoi d'une notification interne à MVA (sans modifier les données du client)
  notifyDuplicateViaFormspree(contact);
}

function showError() {
  const errEl = document.getElementById('formErrorGlobal');
  const lang  = localStorage.getItem('mva-lang') || 'fr';
  const t     = translations?.[lang]?.contact || {};
  if (errEl) {
    errEl.style.display = 'block';
    errEl.textContent   = t.errorMsg || 'Une erreur est survenue. Veuillez réessayer ou nous contacter directement.';
  }
}