(function () {
  'use strict';

  const browser = globalThis.browser || globalThis.chrome;

  const statusEl = document.getElementById('status');
  const countBadge = document.getElementById('count-badge');
  const previewEl = document.getElementById('preview');
  const copyBtn = document.getElementById('copy-btn');
  const copyLabel = copyBtn.querySelector('.btn-label');
  const viewNameEl = document.getElementById('view-name');

  let currentIds = [];

  function parseViewName(url) {
    if (!url) return null;
    try {
      const u = new URL(url);
      const raw = u.searchParams.get('viewname');
      if (!raw) return null;
      // Format attendu : AppName|ViewName
      const parts = raw.split('|');
      const name = parts.length > 1 ? parts[1] : parts[0];
      return name ? name.trim() : null;
    } catch (e) {
      return null;
    }
  }

  function setViewName(name) {
    if (!name) {
      viewNameEl.hidden = true;
      viewNameEl.textContent = '';
      viewNameEl.removeAttribute('title');
      return;
    }
    viewNameEl.textContent = name;
    viewNameEl.title = name;
    viewNameEl.hidden = false;
  }

  function setStatus(text, level) {
    statusEl.textContent = text;
    statusEl.className = 'status status--' + (level || 'info');
  }

  function setBadge(n) {
    countBadge.textContent = String(n);
    countBadge.classList.toggle('badge--active', n > 0);
  }

  function setPreview(pairs) {
    // Vide le contenu existant
    while (previewEl.firstChild) previewEl.removeChild(previewEl.firstChild);

    if (!pairs || pairs.length === 0) return;

    const MAX_PREVIEW = 50;
    const visible = pairs.slice(0, MAX_PREVIEW);

    for (const pair of visible) {
      const item = document.createElement('li');
      item.className = 'preview-item';

      const codeEl = document.createElement('span');
      codeEl.className = 'preview-code';
      codeEl.textContent = pair.code || '(code inconnu)';
      codeEl.title = codeEl.textContent;

      const idEl = document.createElement('span');
      idEl.className = 'preview-id';
      idEl.textContent = pair.id;
      idEl.title = pair.id;

      item.appendChild(codeEl);
      item.appendChild(idEl);
      previewEl.appendChild(item);
    }

    if (pairs.length > MAX_PREVIEW) {
      const more = document.createElement('li');
      more.className = 'preview-more';
      more.textContent = '... et ' + (pairs.length - MAX_PREVIEW) + ' de plus';
      previewEl.appendChild(more);
    }
  }

  function setButtonState(state) {
    copyBtn.classList.remove('btn--primary', 'btn--ok', 'btn--error');
    switch (state) {
      case 'ok':
        copyBtn.classList.add('btn--ok');
        copyLabel.textContent = 'Copié';
        break;
      case 'error':
        copyBtn.classList.add('btn--error');
        copyLabel.textContent = 'Échec de la copie';
        break;
      case 'idle':
      default:
        copyBtn.classList.add('btn--primary');
        copyLabel.textContent = 'Copier les IDs';
        break;
    }
  }

  function isSmartUiUrl(url) {
    if (!url) return false;
    try {
      const u = new URL(url);
      return /\/SmartUI\//i.test(u.pathname);
    } catch (e) {
      return /\/SmartUI\//i.test(url);
    }
  }

  function queryActiveTab() {
    return new Promise((resolve) => {
      try {
        browser.tabs.query({ active: true, currentWindow: true }, (tabs) => {
          resolve(tabs && tabs[0] ? tabs[0] : null);
        });
      } catch (e) {
        resolve(null);
      }
    });
  }

  function sendMessage(tabId, msg) {
    return new Promise((resolve) => {
      let settled = false;
      const done = (value) => {
        if (settled) return;
        settled = true;
        resolve(value);
      };
      try {
        browser.tabs.sendMessage(tabId, msg, (response) => {
          const err = browser.runtime && browser.runtime.lastError;
          if (err) {
            done({ ok: false, error: err.message || String(err) });
          } else {
            done(response || { ok: false, error: 'empty_response' });
          }
        });
      } catch (e) {
        done({ ok: false, error: String(e && e.message ? e.message : e) });
      }
      setTimeout(() => done({ ok: false, error: 'timeout' }), 1500);
    });
  }

  async function refresh() {
    const tab = await queryActiveTab();
    if (!tab) {
      setStatus("Impossible de lire l'onglet actif.", 'error');
      setBadge(0);
      setPreview([]);
      setViewName(null);
      copyBtn.disabled = true;
      return;
    }

    if (!isSmartUiUrl(tab.url)) {
      setStatus("Cette page n'est pas une vue SmartUI.", 'warn');
      setBadge(0);
      setPreview([]);
      setViewName(null);
      copyBtn.disabled = true;
      return;
    }

    setViewName(parseViewName(tab.url));

    let resp = await sendMessage(tab.id, { type: 'GET_SELECTED_IDS' });

    // Si le content script ne repond pas, l'injecter programmatiquement et reessayer
    if (!resp || resp.ok === false) {
      setStatus("Injection du content script...", 'info');
      try {
        await browser.scripting.executeScript({
          target: { tabId: tab.id, allFrames: true },
          files: ['content/content-script.js']
        });
        // Attendre que le script s'initialise
        await new Promise((r) => setTimeout(r, 800));
        resp = await sendMessage(tab.id, { type: 'GET_SELECTED_IDS' });
      } catch (e) {
        console.warn('[TakeID] Injection failed:', e);
      }
    }

    if (!resp || resp.ok === false) {
      setStatus(
        "Le content script ne répond pas. Rechargez la page SmartUI puis réouvrez le popup.",
        'error'
      );
      setBadge(0);
      setPreview([]);
      copyBtn.disabled = true;
      return;
    }

    const pairs = Array.isArray(resp.pairs)
      ? resp.pairs
      : (Array.isArray(resp.ids) ? resp.ids.map((id) => ({ id, code: null })) : []);
    currentIds = pairs.map((p) => p.id);

    setBadge(currentIds.length);
    setPreview(pairs);

    if (currentIds.length === 0) {
      if (!resp.cacheSize) {
        setStatus(
          "Aucune donnée en cache. Naviguez sur la grille (ou rafraîchissez la vue) pour que l'extension capture les IDs.",
          'warn'
        );
      } else if (!resp.selectedCount) {
        setStatus(
          "Aucune ligne sélectionnée. Cochez les lignes dans la grille puis réouvrez le popup.",
          'warn'
        );
      } else {
        setStatus(
          "Lignes sélectionnées détectées mais aucun ID associé trouvé dans le cache.",
          'warn'
        );
      }
      copyBtn.disabled = true;
    } else {
      setStatus(
        currentIds.length + ' ID' + (currentIds.length > 1 ? 's' : '') + ' prêt' + (currentIds.length > 1 ? 's' : '') + ' à copier.',
        'ok'
      );
      copyBtn.disabled = false;
    }
  }

  async function copyIds() {
    if (!currentIds || currentIds.length === 0) return;
    const text = currentIds.join('\n');
    try {
      await navigator.clipboard.writeText(text);
      setButtonState('ok');
      setStatus(currentIds.length + ' ID(s) copié(s) dans le presse-papier.', 'ok');
      setTimeout(() => setButtonState('idle'), 1400);
    } catch (e) {
      // Fallback : execCommand
      try {
        const ta = document.createElement('textarea');
        ta.value = text;
        ta.style.position = 'fixed';
        ta.style.opacity = '0';
        document.body.appendChild(ta);
        ta.select();
        const ok = document.execCommand('copy');
        document.body.removeChild(ta);
        if (ok) {
          setButtonState('ok');
          setStatus(currentIds.length + ' ID(s) copié(s).', 'ok');
          setTimeout(() => setButtonState('idle'), 1400);
        } else {
          throw new Error('execCommand failed');
        }
      } catch (e2) {
        setButtonState('error');
        setStatus('Échec de la copie : ' + (e2.message || e2), 'error');
        setTimeout(() => setButtonState('idle'), 1800);
      }
    }
  }

  copyBtn.addEventListener('click', copyIds);

  document.addEventListener('DOMContentLoaded', refresh);
  if (document.readyState !== 'loading') refresh();
})();