const API_URL = '../api.php';
let allItems = [];
let currentAdminTab = 'critique';
let currentPage = 1;
const itemsPerPage = 12;
let selectedIds = new Set();
let pendingDeleteAction = null;

function getStarsHTML(rating) {
    const r = parseFloat(rating) || 0;
    const full = Math.floor(r);
    const hasHalf = (r - full) >= 0.5;
    const empty = 5 - Math.ceil(r);
    let html = '★'.repeat(full);
    if (hasHalf) html += '<span class="half-star">★</span>';
    html += `<span class="stars-muted">${'☆'.repeat(empty)}</span>`;
    return html;
}

// ── PARSER CSV RENFORCÉ ──
function parseCSV(text) {
    if (text.charCodeAt(0) === 0xFEFF) text = text.slice(1);
    const rows = [];
    let col = '', row = [], inQuotes = false;
    for (let i = 0; i < text.length; i++) {
        const c = text[i];
        if (inQuotes) {
            if (c === '"') {
                if (text[i+1] === '"') { col += '"'; i++; }
                else inQuotes = false;
            } else col += c;
        } else {
            if (c === '"') inQuotes = true;
            else if (c === ',') { row.push(col); col = ''; }
            else if (c === '\n' || c === '\r') {
                if (c === '\r' && text[i+1] === '\n') i++;
                row.push(col); col = '';
                if (row.length > 1 || row[0].trim() !== '') rows.push(row);
                row = [];
            } else col += c;
        }
    }
    if (col !== '' || row.length > 0) { row.push(col); rows.push(row); }
    if (rows.length === 0) return [];
    const headers = rows[0].map(h => h.trim());
    const data = [];
    for (let i = 1; i < rows.length; i++) {
        if (rows[i].length === 1 && rows[i][0].trim() === '') continue;
        const obj = {};
        headers.forEach((h, idx) => {
            obj[h] = rows[i][idx] !== undefined ? rows[i][idx] : '';
        });
        data.push(obj);
    }
    return data;
}

document.addEventListener('DOMContentLoaded', () => {
    loadDashboardData();
    initEventListeners();
    const confirmBtn = document.getElementById('confirm-btn');
    if (confirmBtn) {
        confirmBtn.addEventListener('click', () => {
            if (pendingDeleteAction) pendingDeleteAction();
            closeConfirmModal();
        });
    }
});

function initEventListeners() {
    const filmForm = document.getElementById('film-form');
    if (filmForm) filmForm.addEventListener('submit', saveFilmForm);
    const csvInput = document.getElementById('csv-file');
    if (csvInput) csvInput.addEventListener('change', (e) => handleCsvUpload(e.target));

    const searchInput = document.getElementById('search-input');
    if (searchInput) {
        searchInput.addEventListener('input', () => {
            currentPage = 1;
            renderAdminTable();
        });
    }

    const selectAll = document.getElementById('select-all-checkbox');
    if (selectAll) selectAll.addEventListener('change', (e) => toggleSelectAll(e.target));

    document.addEventListener('click', (e) => {
        if (e.target.classList.contains('modal-close') || e.target.closest('.modal-close')) {
            const overlay = e.target.closest('.overlay');
            if (overlay) overlay.classList.remove('open');
        }
        if (e.target.classList.contains('overlay')) {
            e.target.classList.remove('open');
        }
    });

    const physicalFilter = document.getElementById('admin-physical-checkbox');
    if (physicalFilter) {
        physicalFilter.addEventListener('change', () => {
            currentPage = 1;
            renderAdminTable();
        });
    }
}

async function loadDashboardData() {
    try {
        const res = await fetch(`${API_URL}?action=get_films`, { cache: 'no-store' });
        allItems = await res.json();
        const secRes = await fetch(`${API_URL}?action=check_security_status`, { cache: 'no-store' });
        const secData = await secRes.json();
        const banner = document.getElementById('security-banner');
        if (banner) banner.style.display = secData.is_blank ? 'flex' : 'none';
        renderAdminTable();
    } catch (err) { console.error('Erreur chargement :', err); }
}

function renderAdminTable() {
    const tbody = document.getElementById('admin-table-body');
    if (!tbody) return;
    tbody.innerHTML = '';
    const searchInput = document.getElementById('search-input');
    const currentSearch = searchInput ? searchInput.value.toLowerCase() : '';
    const physicalFilter = document.getElementById('admin-physical-checkbox');

    let filtered = allItems.filter(item => item.type === currentAdminTab);

    if (physicalFilter && physicalFilter.checked) {
        filtered = filtered.filter(f => f.format && !['dématérialisé', 'vod', 'digital', 'streaming'].includes(f.format.toLowerCase()));
    }

    if (currentSearch) {
        filtered = filtered.filter(f => 
            f.title.toLowerCase().includes(currentSearch) || 
            (f.director && f.director.toLowerCase().includes(currentSearch))
        );
    }

    const countLabel = document.getElementById('admin-count-label');
    if (countLabel) countLabel.textContent = `${filtered.length} élément(s)`;

    const totalPages = Math.ceil(filtered.length / itemsPerPage) || 1;
    if (currentPage > totalPages) currentPage = totalPages;
    const startIdx = (currentPage - 1) * itemsPerPage;
    const pageItems = filtered.slice(startIdx, startIdx + itemsPerPage);

    pageItems.forEach(f => {
        const tr = document.createElement('tr');
        const isChecked = selectedIds.has(String(f.id)) ? 'checked' : '';
        tr.innerHTML = `
            <td style="text-align:center;">
                <input type="checkbox" class="film-checkbox" value="${f.id}" ${isChecked} onclick="toggleSingleSelect('${f.id}', this)">
            </td>
            <td style="text-align:center;">
                ${f.poster ? `<img src="${f.poster}" class="thumb" alt="Affiche">` : '<div class="thumb-ph"><i class="ti ti-photo"></i></div>'}
            </td>
            <td><strong>${f.title}</strong></td>
            <td>${f.year || '-'}</td>
            <td>${f.director || '-'}</td>
            <td>${currentAdminTab === 'critique' ? `<span class="tbl-stars">${getStarsHTML(f.rating)}</span>` : `<span class="badge-format">${f.format || '-'}</span>`}</td>
            <td>
                <div class="tbl-actions">
                    <button onclick="openEditModal('${f.id}')" title="Éditer"><i class="ti ti-edit"></i></button>
                    <button class="del" onclick="deleteSingleFilm('${f.id}')" title="Supprimer"><i class="ti ti-trash"></i></button>
                </div>
            </td>`;
        tbody.appendChild(tr);
    });

    renderPagination(totalPages, filtered.length);

    const selectAll = document.getElementById('select-all-checkbox');
    if (selectAll) {
        selectAll.checked = pageItems.length > 0 && pageItems.every(f => selectedIds.has(String(f.id)));
    }
}

function toggleSingleSelect(id, checkbox) {
    if (checkbox.checked) selectedIds.add(String(id));
    else selectedIds.delete(String(id));
    updateBulkBar();
    const filtered = allItems.filter(item => item.type === currentAdminTab);
    const selectAll = document.getElementById('select-all-checkbox');
    if (selectAll) {
        selectAll.checked = filtered.length > 0 && filtered.every(f => selectedIds.has(String(f.id)));
    }
}

function toggleSelectAll(source) {
    const filtered = allItems.filter(item => item.type === currentAdminTab);
    if (source.checked) {
        filtered.forEach(f => selectedIds.add(String(f.id)));
    } else {
        filtered.forEach(f => selectedIds.delete(String(f.id)));
    }
    document.querySelectorAll('.film-checkbox').forEach(cb => {
        cb.checked = selectedIds.has(cb.value);
    });
    updateBulkBar();
}

function updateBulkBar() {
    const bulkBar = document.getElementById('bulk-actions-bar');
    const bulkCount = document.getElementById('bulk-count');
    if (selectedIds.size > 0) {
        if (bulkBar) bulkBar.style.display = 'flex';
        if (bulkCount) bulkCount.textContent = selectedIds.size;
    } else {
        if (bulkBar) bulkBar.style.display = 'none';
        const selectAll = document.getElementById('select-all-checkbox');
        if (selectAll) selectAll.checked = false;
    }
}

function renderPagination(totalPages, totalItems) {
    const container = document.getElementById('pagination-container');
    if (!container) return;
    container.innerHTML = '';
    if (totalItems === 0) {
        container.innerHTML = '<p style="color:var(--muted); text-align:center; width:100%;">Aucun élément trouvé.</p>';
        return;
    }
    if (totalPages <= 1) return;

    const info = document.createElement('span');
    info.className = 'pagination-info';
    info.textContent = `Page ${currentPage} sur ${totalPages}`;
    container.appendChild(info);

    const prevBtn = document.createElement('button');
    prevBtn.innerHTML = '<i class="ti ti-chevron-left"></i>';
    prevBtn.disabled = currentPage === 1;
    prevBtn.onclick = () => { currentPage--; renderAdminTable(); };
    container.appendChild(prevBtn);

    const maxButtons = 5;
    let startPage = Math.max(1, currentPage - Math.floor(maxButtons / 2));
    let endPage = Math.min(totalPages, startPage + maxButtons - 1);
    if (endPage - startPage + 1 < maxButtons) {
        startPage = Math.max(1, endPage - maxButtons + 1);
    }
    if (startPage > 1) {
        container.appendChild(createPageBtn(1));
        if (startPage > 2) container.appendChild(createEllipsis());
    }
    for (let i = startPage; i <= endPage; i++) {
        container.appendChild(createPageBtn(i));
    }
    if (endPage < totalPages) {
        if (endPage < totalPages - 1) container.appendChild(createEllipsis());
        container.appendChild(createPageBtn(totalPages));
    }

    const nextBtn = document.createElement('button');
    nextBtn.innerHTML = '<i class="ti ti-chevron-right"></i>';
    nextBtn.disabled = currentPage === totalPages;
    nextBtn.onclick = () => { currentPage++; renderAdminTable(); };
    container.appendChild(nextBtn);
}

function createPageBtn(num) {
    const btn = document.createElement('button');
    btn.textContent = num;
    if (num === currentPage) btn.classList.add('active');
    btn.onclick = () => { currentPage = num; renderAdminTable(); };
    return btn;
}

function createEllipsis() {
    const span = document.createElement('span');
    span.textContent = '...';
    span.style.color = 'var(--muted)';
    span.style.padding = '0 0.5rem';
    return span;
}

function showConfirmModal(actionFn) {
    pendingDeleteAction = actionFn;
    const modal = document.getElementById('confirm-modal');
    if (modal) modal.classList.add('open');
}

function closeConfirmModal() {
    const modal = document.getElementById('confirm-modal');
    if (modal) modal.classList.remove('open');
    pendingDeleteAction = null;
}

async function executeBulkDelete() {
    const ids = Array.from(selectedIds);
    if (ids.length === 0) return;
    showConfirmModal(async () => {
        try {
            const res = await fetch(`${API_URL}?action=bulk_delete`, {
                method: 'POST',
                headers: { 'Authorization': localStorage.getItem('token'), 'Content-Type': 'application/json' },
                body: JSON.stringify({ ids, type: currentAdminTab })
            });
            if (!res.ok) throw new Error("Erreur serveur.");
            selectedIds.clear();
            document.getElementById('bulk-actions-bar').style.display = 'none';
            const selectAll = document.getElementById('select-all-checkbox');
            if (selectAll) selectAll.checked = false;
            loadDashboardData();
        } catch (err) {
            console.error('Erreur bulk delete :', err);
            alert("Une erreur est survenue.");
        }
    });
}

async function deleteSingleFilm(id) {
    showConfirmModal(async () => {
        try {
            const res = await fetch(`${API_URL}?action=delete_film&id=${id}&type=${currentAdminTab}`, {
                method: 'DELETE',
                headers: { 'Authorization': localStorage.getItem('token') }
            });
            if (!res.ok) throw new Error("Erreur serveur.");
            loadDashboardData();
        } catch (err) {
            console.error('Erreur delete :', err);
            alert("Une erreur est survenue.");
        }
    });
}

function toggleFormFields() {
    const critFields = document.getElementById('form-critique-fields');
    const vidFields = document.getElementById('form-videotheque-fields');
    if (critFields) critFields.style.display = currentAdminTab === 'critique' ? 'block' : 'none';
    if (vidFields) vidFields.style.display = currentAdminTab === 'videotheque' ? 'block' : 'none';
}

function switchAdminTab(tabName) {
    currentAdminTab = tabName;
    currentPage = 1;
    selectedIds.clear();
    const searchInput = document.getElementById('search-input');
    if (searchInput) searchInput.value = '';
    const physicalFilter = document.getElementById('admin-physical-checkbox');
    if (physicalFilter) {
        physicalFilter.checked = false; // On réinitialise le filtre à chaque changement d'onglet
        
        // On cherche le conteneur parent (le <label> ou la <div> qui entoure la case et le texte)
        const wrapper = physicalFilter.closest('label') || physicalFilter.parentElement;
        
        if (wrapper) {
            // Si on est en mode Vidéothèque, on cache tout. Sinon, on réaffiche.
            wrapper.style.display = (tabName === 'videotheque') ? 'none' : '';
        }
    }
    document.querySelectorAll('.tab-btn').forEach(b => b.classList.remove('active'));
    const btn = document.getElementById(`btn-tab-${tabName}`);
    if (btn) btn.classList.add('active');
    
    updateImportInterface(); 
    toggleFormFields();
    renderAdminTable();
    updateImportInterface(); 
    toggleFormFields();
    renderAdminTable();
}

function openAddModal() {
    document.getElementById('film-form').reset();
    document.getElementById('f-id').value = '';
    toggleFormFields();
    document.getElementById('admin-modal').classList.add('open');
}

function openEditModal(id) {
    const item = allItems.find(x => String(x.id) === String(id));
    if (!item) return;
    document.getElementById('f-id').value = item.id;
    document.getElementById('f-title').value = item.title;
    document.getElementById('f-year').value = item.year || '';
    document.getElementById('f-director').value = item.director || '';
    document.getElementById('f-poster').value = item.poster || '';
    toggleFormFields();
    if (currentAdminTab === 'critique') {
        document.getElementById('f-rating').value = item.rating || 3;
        document.getElementById('f-review').value = item.review || '';
        document.getElementById('f-streaming').value = item.streaming || '';
    } else {
        document.getElementById('f-format').value = item.format || '';
        document.getElementById('f-length').value = item.length || '';
        document.getElementById('f-publisher').value = item.publisher || '';
        document.getElementById('f-aspect').value = item.aspect_ratio || '';
        document.getElementById('f-ean').value = item.ean_isbn13 || '';
        document.getElementById('f-discs').value = item.number_of_discs || 1;
        document.getElementById('f-description').value = item.description || '';
    }
    document.getElementById('admin-modal').classList.add('open');
}

function closeAdminModal() { document.getElementById('admin-modal').classList.remove('open'); }

async function openConfigModal() {
    document.getElementById('config-modal').classList.add('open');
    document.getElementById('tmdb-key-input').placeholder = 'Pour les critiques (réalisateur, streaming)';
    try {
        const res = await fetch(`${API_URL}?action=get_config_keys`, { headers: { 'Authorization': localStorage.getItem('token') } });
        const data = await res.json();
        if (data.tmdb_api_key) document.getElementById('tmdb-key-input').placeholder = '✅ Clé configurée (laisser vide pour ne pas changer)';
    } catch(e) { console.error(e); }
}

function closeConfigModal() { document.getElementById('config-modal').classList.remove('open'); }

function openPasswordModal() {
    document.getElementById('pwd-error').style.display = 'none';
    document.getElementById('password-modal').classList.add('open');
}

function closePasswordModal() { document.getElementById('password-modal').classList.remove('open'); }

function logout() {
    localStorage.removeItem('token');
    window.location.href = 'login.html';
}

async function saveFilmForm(e) {
    e.preventDefault();
    const payload = {
        type: currentAdminTab,
        id: document.getElementById('f-id').value,
        title: document.getElementById('f-title').value,
        year: document.getElementById('f-year').value,
        director: document.getElementById('f-director').value,
        poster: document.getElementById('f-poster').value,
        rating: document.getElementById('f-rating') ? document.getElementById('f-rating').value : '',
        review: document.getElementById('f-review') ? document.getElementById('f-review').value : '',
        streaming: document.getElementById('f-streaming') ? document.getElementById('f-streaming').value : '',
        format: document.getElementById('f-format') ? document.getElementById('f-format').value : '',
        length: document.getElementById('f-length') ? document.getElementById('f-length').value : '',
        publisher: document.getElementById('f-publisher') ? document.getElementById('f-publisher').value : '',
        aspect_ratio: document.getElementById('f-aspect') ? document.getElementById('f-aspect').value : '',
        ean_isbn13: document.getElementById('f-ean') ? document.getElementById('f-ean').value : '',
        number_of_discs: document.getElementById('f-discs') ? document.getElementById('f-discs').value : 1,
        description: document.getElementById('f-description') ? document.getElementById('f-description').value : ''
    };
    try {
        await fetch(`${API_URL}?action=save_film`, {
            method: 'POST',
            headers: { 'Authorization': localStorage.getItem('token'), 'Content-Type': 'application/json' },
            body: JSON.stringify(payload)
        });
        closeAdminModal();
        loadDashboardData();
    } catch (err) { console.error('Erreur sauvegarde :', err); }
}

// --- FONCTION D'IMPORT INTELLIGENTE (CORRIGÉE) ---
async function handleCsvUpload(input) {
    if (!input.files || input.files.length === 0) return;
    let allData = [];

    // 1. Lecture de tous les fichiers
    for (const file of input.files) {
        try {
            const text = await file.text();
            const data = parseCSV(text);
            allData = allData.concat(data);
        } catch(e) { 
            console.error('Erreur lecture fichier', file.name, e); 
        }
    }

    input.value = ''; // Reset l'input file

    if (allData.length === 0) {
        alert('❌ Fichiers vides ou mal formatés.');
        return;
    }

    // 🔥 CORRECTION : Mapping intelligent pour votre format CSV spécifique
    let finalData = allData.map(row => {
        // 1. Titre (gestion des guillemets et espaces)
        const rawTitle = (row['title'] || row['Title'] || row['Name'] || '').trim();
        
        // 2. Année (extraction depuis publish_date au format YYYY-MM-DD)
        let year = '';
        const dateStr = (row['publish_date'] || row['Date'] || row['Year'] || '').toString();
        const yearMatch = dateStr.match(/(\d{4})/);
        if (yearMatch) year = yearMatch[1];

        // 3. Nettoyage du titre (enlever les mentions [Blu-ray], (DVD), etc.)
        let cleanTitle = rawTitle.replace(/\s*\[(Blu-ray|DVD|4K|Coffret|Combo).*?\]/gi, '').trim();
        cleanTitle = cleanTitle.replace(/\s*\(.*?DVD.*?\)/gi, '').trim();
        if (!cleanTitle) cleanTitle = rawTitle;

        // 4. Déduction automatique du format physique
        let format = 'Support Physique';
        if (rawTitle.match(/Blu-ray|Blu-Ray/i)) format = 'Blu-ray';
        else if (rawTitle.match(/DVD/i)) format = 'DVD';
        else if (rawTitle.match(/4K|UHD/i)) format = '4K UHD';

        // 5. Extraction du Réalisateur / Casting principal
        let director = '';
        if (row['director']) {
            director = row['director'];
        } else if (row['first_name'] && row['last_name']) {
            director = `${row['first_name']} ${row['last_name']}`;
        } else if (row['creators']) {
            // Prendre le premier nom de la liste des créateurs/acteurs
            director = row['creators'].split(',')[0].trim();
        }
        
        // 6. Construction de l'objet final avec les NOMS DE CHAMPS ATTENDUS PAR LE BACKEND
        return {
            title: cleanTitle,
            year: year,
            director: director,
            format: format,
            length: row['length'] || '',
            publisher: row['publisher'] || '',
            aspect_ratio: row['aspect_ratio'] || '',
            ean_isbn13: row['ean_isbn13'] || '',
            number_of_discs: row['number_of_discs'] || 1,
            description: row['description'] || ''
        };
    });

    // Filtrer les lignes sans titre
    finalData = finalData.filter(item => item.title !== '');

    if (finalData.length === 0) {
        alert('❌ Aucun titre valide trouvé dans le fichier.');
        return;
    }

    // Dédoublonnage en mémoire
    const mergedMap = new Map();
    finalData.forEach(row => {
        const key = `${row.title.toLowerCase()}|${row.year}`;
        if (!mergedMap.has(key)) {
            mergedMap.set(key, row);
        }
    });
    finalData = Array.from(mergedMap.values());

    // Lancement de la modale de progression
    showImportModal(finalData.length, currentAdminTab);

    // Envoi par lots de 10
    const batchSize = 10;
    let processed = 0;

    for (let i = 0; i < finalData.length; i += batchSize) {
        const batch = finalData.slice(i, i + batchSize);
        try {
            await fetch(`${API_URL}?action=import_batch`, {
                method: 'POST',
                headers: { 
                    'Authorization': localStorage.getItem('token'),
                    'Content-Type': 'application/json' 
                },
                body: JSON.stringify({ items: batch, type: currentAdminTab })
            });
        } catch (err) {
            console.error('Erreur lot import:', err);
        }
        processed += batch.length;
        updateImportModal(processed, finalData.length);
    }

    // Finalisation
    closeImportModal();
    alert(`✅ Import terminé ! ${finalData.length} élément(s) traité(s).`);
    loadDashboardData();
}

async function saveConfigKeys() {
    const keys = { 'tmdb_api_key': document.getElementById('tmdb-key-input')?.value || '' };
    let successCount = 0;
    for (const [keyName, keyValue] of Object.entries(keys)) {
        if (keyValue) {
            try {
                const res = await fetch(`${API_URL}?action=save_config`, {
                    method: 'POST',
                    headers: { 'Authorization': localStorage.getItem('token'), 'Content-Type': 'application/json' },
                    body: JSON.stringify({ key_name: keyName, key_value: keyValue })
                });
                const data = await res.json();
                if (data.success) successCount++;
            } catch (err) { console.error(err); }
        }
    }
    if (successCount > 0) {
        alert('✅ Clés API sauvegardées !');
        closeConfigModal();
    } else { alert('Aucune nouvelle clé valide à sauvegarder.'); }
}

async function saveNewPassword() {
    const pwdInput = document.getElementById('new-password-input');
    const pwdConfirm = document.getElementById('new-password-confirm');
    const errorMsg = document.getElementById('pwd-error');
    if (!pwdInput || !pwdConfirm) return;
    if (pwdInput.value !== pwdConfirm.value) {
        errorMsg.textContent = "Les mots de passe ne correspondent pas.";
        errorMsg.style.display = "block";
        return;
    }
    if (pwdInput.value.length < 4) {
        errorMsg.textContent = "Le mot de passe doit contenir au moins 4 caractères.";
        errorMsg.style.display = "block";
        return;
    }
    try {
        const response = await fetch(`${API_URL}?action=update_password`, {
            method: 'POST',
            headers: { 'Authorization': localStorage.getItem('token'), 'Content-Type': 'application/json' },
            body: JSON.stringify({ new_password: pwdInput.value })
        });
        const data = await response.json();
        if (data.success) {
            pwdInput.value = '';
            pwdConfirm.value = '';
            errorMsg.style.display = "none";
            closePasswordModal();
            alert('Mot de passe mis à jour.');
            loadDashboardData();
        }
    } catch (err) { console.error('Erreur mise à jour mot de passe :', err); }
}

// --- IMPORT PROGRESSIVE DYNAMIQUE ---
function showImportModal(total, type) {
    const modal = document.getElementById('import-progress-modal');
    const title = document.getElementById('import-modal-title');
    const desc = document.getElementById('import-modal-desc');
    title.innerHTML = type === 'critique' 
        ? '<i class="ti ti-star"></i> Import des Critiques' 
        : '<i class="ti ti-video"></i> Import Vidéothèque';
    desc.textContent = `Traitement de ${total} élément(s)...`;
    document.getElementById('import-progress-bar').style.width = '0%';
    document.getElementById('import-modal-counter').textContent = '0%';
    modal.classList.add('open');
}

function updateImportModal(current, total) {
    const pct = Math.round((current / total) * 100);
    document.getElementById('import-progress-bar').style.width = pct + '%';
    document.getElementById('import-modal-counter').textContent = `${pct}%`;
}

function closeImportModal() {
    document.getElementById('import-progress-modal').classList.remove('open');
}

async function fetchInfoFromEAN() {
    const eanInput = document.getElementById('f-ean');
    const ean = eanInput.value.trim();
    if (!ean || ean.length < 8) { alert("Veuillez saisir un code EAN valide."); return; }
    const btn = eanInput.nextElementSibling;
    const originalHtml = btn.innerHTML;
    btn.innerHTML = '<i class="ti ti-loader"></i>';
    btn.disabled = true;

    try {
        const res = await fetch(`${API_URL}?action=search_ean_full&ean=${ean}`, {
            headers: { 'Authorization': localStorage.getItem('token') }
        });
        const json = await res.json();
        if (json.success && json.data) {
            const d = json.data;
            if (d.title) document.getElementById('f-title').value = d.title;
            if (d.director) document.getElementById('f-director').value = d.director;
            if (d.year) document.getElementById('f-year').value = d.year;
            if (d.poster) document.getElementById('f-poster').value = d.poster;
            if (d.publisher) document.getElementById('f-publisher').value = d.publisher;
            if (d.format) document.getElementById('f-format').value = d.format;
            if (d.length) document.getElementById('f-length').value = d.length;
            if (d.number_of_discs) document.getElementById('f-discs').value = d.number_of_discs;
            if (d.aspect_ratio) document.getElementById('f-aspect').value = d.aspect_ratio;
        } else { alert("Aucune information trouvée pour ce code EAN."); }
    } catch (e) {
        console.error("Erreur de recherche EAN: ", e);
        alert("Erreur réseau lors de la recherche du code EAN.");
    } finally {
        btn.innerHTML = originalHtml;
        btn.disabled = false;
    }
}

function updateImportInterface() {
    const title = document.getElementById('import-title');
    const desc = document.getElementById('import-desc');
    if (currentAdminTab === 'critique') {
        title.innerHTML = '<strong>Importer Critiques & Notes</strong>';
        desc.textContent = 'Glissez-déposez vos fichiers "ratings.csv" et "reviews.csv" (Letterboxd).';
    } else {
        title.innerHTML = '<strong>Importer ma Vidéothèque</strong>';
        desc.textContent = 'Glissez-déposez vos listes CSV de supports physiques (Blu-ray, DVD, 4K).';
    }
}