/* ALFRED_HERMES_NEW_SESSION_V1 — reset sûr de la seule session conversationnelle Hermes. */
(() => {
  'use strict';
  function setup() {
    const grid = document.querySelector('#avMoreDialog .av-more-grid');
    if (!grid || document.getElementById('avHermesNewSession')) return false;

    const button = document.createElement('button');
    button.type = 'button';
    button.id = 'avHermesNewSession';
    button.className = 'av-hermes-new-session';
    button.innerHTML = '<svg viewBox="0 0 24 24" class="a-icon" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M3 12a9 9 0 1 0 3-6.7"/><path d="M3 3v6h6"/><path d="M12 7v5l4 2"/></svg><span>Nouvelle session Hermes</span>';
    grid.appendChild(button);

    const dialog = document.createElement('dialog');
    dialog.id = 'avHermesSessionDialog';
    dialog.className = 'av-hermes-session-dialog';
    dialog.setAttribute('aria-labelledby', 'avHermesSessionTitle');
    dialog.innerHTML = `
      <form method="dialog" class="av-hermes-session-content">
        <h2 id="avHermesSessionTitle">Nouvelle session Hermes</h2>
        <p>Repartir sans le contexte de l’ancienne conversation. La prochaine demande utilisera une nouvelle session avec les outils Hermes disponibles. La session actuelle sera sauvegardée.</p>
        <p class="av-hermes-session-note">Les outils, les Skills et les réglages de Dona restent inchangés. Aucune tâche Hermes n'est annulée.</p>
        <p id="avHermesSessionMessage" class="av-hermes-session-message" role="status" aria-live="polite"></p>
        <div class="av-hermes-session-actions">
          <button type="button" id="avHermesSessionCancel" class="av-hermes-session-secondary">Annuler</button>
          <button type="button" id="avHermesSessionConfirm" class="av-hermes-session-primary">Créer une nouvelle session</button>
        </div>
      </form>`;
    document.body.appendChild(dialog);

    const msg = dialog.querySelector('#avHermesSessionMessage');
    const confirm = dialog.querySelector('#avHermesSessionConfirm');
    const cancel = dialog.querySelector('#avHermesSessionCancel');
    let csrf = '';
    let busy = false;

    function setMessage(text, error = false) {
      msg.textContent = text;
      msg.classList.toggle('is-error', error);
    }

    button.addEventListener('click', async () => {
      document.getElementById('avMoreDialog')?.close();
      setMessage('');
      confirm.hidden = false;
      cancel.textContent = 'Annuler';
      dialog.showModal();
      confirm.disabled = true;
      try {
        const response = await fetch('/api/control/auth', {credentials:'same-origin',cache:'no-store'});
        if (!response.ok) throw new Error('Vérification administrateur impossible.');
        const auth = await response.json();
        if (!auth.authenticated || !auth.csrf) {
          setMessage('Connecte-toi d’abord en administrateur dans Configuration (/config), puis reviens ici.', true);
          confirm.hidden = true;
          cancel.textContent = 'Fermer';
          const link = document.createElement('a');
          link.href = '/config';
          link.textContent = 'Ouvrir Configuration';
          link.className = 'av-hermes-session-login';
          const old = dialog.querySelector('.av-hermes-session-login');
          old?.remove();
          msg.after(link);
        } else {
          dialog.querySelector('.av-hermes-session-login')?.remove();
          csrf = auth.csrf;
          confirm.disabled = false;
        }
      } catch (e) {
        setMessage(e.message, true);
      }
    });

    cancel.addEventListener('click', () => { if (!busy) dialog.close(); });
    confirm.addEventListener('click', async () => {
      if (busy || !csrf) return;
      busy = true;
      confirm.disabled = true;
      cancel.disabled = true;
      setMessage('Création de la nouvelle session…');
      try {
        const response = await fetch('/api/control/hermes/new-session', {
          method:'POST', credentials:'same-origin', cache:'no-store',
          headers: {'X-Alfred-CSRF':csrf,'Content-Type':'application/json'},
          body:'{}'
        });
        const data = await response.json();
        if (!response.ok || !data.ok) throw new Error(data.error || 'Erreur HTTP '+response.status);
        setMessage(data.message || 'Nouvelle session prête.');
        confirm.hidden = true;
        cancel.textContent = 'Fermer';
      } catch (e) {
        setMessage(e.message, true);
      } finally {
        busy = false;
        cancel.disabled = false;
        confirm.disabled = false;
      }
    });
    return true;
  }

  function init() {
    if (setup()) return;
    const observer = new MutationObserver(() => { if (setup()) observer.disconnect(); });
    observer.observe(document.body,{childList:true,subtree:true});
  }
  if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', init, {once:true});
  else init();
})();