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

function safeGetValue(id, defaultValue = '') { const el = document.getElementById(id); return el ? el.value : defaultValue; }
function safeSetValue(id, value) { const el = document.getElementById(id); if (el) el.value = value; }

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;
}

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] !== '') 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 === headers.length) { const obj = {}; headers.forEach((h, idx) => obj[h] = 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');
    });
}

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 getFilteredItems() {
    const searchInput = document.getElementById('search-input'); const currentSearch = searchInput ? searchInput.value.toLowerCase() : '';
    let filtered = allItems.filter(item => item.type === currentAdminTab);
    if (currentSearch) filtered = filtered.filter(f => (f.title && f.title.toLowerCase().includes(currentSearch)) || (f.director && f.director.toLowerCase().includes(currentSearch)));
    return filtered;
}

function renderAdminTable() {
    const tbody = document.getElementById('admin-table-body'); if (!tbody) return; tbody.innerHTML = '';
    const filtered = getFilteredItems();
    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 pageItems = getFilteredItems().slice((currentPage - 1) * itemsPerPage, currentPage * itemsPerPage);
    const selectAll = document.getElementById('select-all-checkbox');
    if (selectAll) selectAll.checked = pageItems.length > 0 && pageItems.every(f => selectedIds.has(String(f.id)));
}
function toggleSelectAll(source) {
    const filtered = getFilteredItems();
    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(`${API_URL}?action=bulk_delete`, { method: 'POST', headers: { 'Authorization': localStorage.getItem('token'), 'Content-Type': 'application/json' }, body: JSON.stringify({ ids, type: currentAdminTab }) }); if (!res.ok) throw new Error("Erreur serveur."); selectedIds.clear(); updateBulkBar(); loadDashboardData(); } 
        catch (err) { console.error('Erreur bulk delete :', err); alert("Une erreur est survenue."); }
    });
}
async function deleteSingleFilm(id) {
    showConfirmModal(async () => {
        try { const res = await fetch(`${API_URL}?action=delete_film&id=${id}&type=${currentAdminTab}`, { method: 'DELETE', headers: { 'Authorization': localStorage.getItem('token') } }); if (!res.ok) throw new Error("Erreur serveur."); selectedIds.delete(String(id)); updateBulkBar(); 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 = ''; document.querySelectorAll('.tab-btn').forEach(b => b.classList.remove('active')); const btn = document.getElementById(`btn-tab-${tabName}`); if (btn) btn.classList.add('active'); toggleFormFields(); updateBulkBar(); renderAdminTable(); }
function openAddModal() { const form = document.getElementById('film-form'); if (form) form.reset(); safeSetValue('f-id', ''); toggleFormFields(); const modal = document.getElementById('admin-modal'); if (modal) modal.classList.add('open'); }
function openEditModal(id) {
    const item = allItems.find(x => String(x.id) === String(id)); if (!item) return;
    safeSetValue('f-id', item.id); safeSetValue('f-title', item.title); safeSetValue('f-year', item.year); safeSetValue('f-director', item.director); safeSetValue('f-poster', item.poster);
    if (currentAdminTab === 'critique') { document.getElementById('f-rating').value = parseFloat(item.rating || 3); document.getElementById('f-review').value = item.review || ''; document.getElementById('f-streaming').value = item.streaming || ''; } 
    else { safeSetValue('f-format', item.format); safeSetValue('f-length', item.length); safeSetValue('f-publisher', item.publisher); safeSetValue('f-aspect', item.aspect_ratio); safeSetValue('f-ean', item.ean_isbn13); safeSetValue('f-discs', item.number_of_discs || 1); safeSetValue('f-description', item.description); }
    toggleFormFields(); const modal = document.getElementById('admin-modal'); if (modal) modal.classList.add('open');
}
function closeAdminModal() { document.getElementById('admin-modal').classList.remove('open'); }
function openConfigModal() { document.getElementById('config-modal').classList.add('open'); }
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'; }

function showProgressModal(total) { document.getElementById('progress-text').textContent = 'Traitement et récupération des jaquettes...'; document.getElementById('progress-bar').style.width = '0%'; document.getElementById('progress-count').textContent = `0 / ${total}`; document.getElementById('progress-overlay').classList.add('open'); }
function updateProgressModal(current, total) { const pct = Math.round((current / total) * 100); document.getElementById('progress-bar').style.width = pct + '%'; document.getElementById('progress-count').textContent = `${current} / ${total}`; }
function closeProgressModal() { document.getElementById('progress-overlay').classList.remove('open'); }

async function saveFilmForm(e) {
    e.preventDefault();
    const payload = { type: currentAdminTab, id: safeGetValue('f-id'), title: safeGetValue('f-title'), year: safeGetValue('f-year'), director: safeGetValue('f-director'), poster: safeGetValue('f-poster'), rating: safeGetValue('f-rating', 3), review: safeGetValue('f-review'), streaming: safeGetValue('f-streaming'), format: safeGetValue('f-format'), length: safeGetValue('f-length'), publisher: safeGetValue('f-publisher'), aspect_ratio: safeGetValue('f-aspect'), ean_isbn13: safeGetValue('f-ean'), number_of_discs: safeGetValue('f-discs', 1), description: safeGetValue('f-description') };
    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); }
}

async function handleCsvUpload(input) {
    if (!input.files || input.files.length === 0) return;
    const file = input.files[0];
    input.value = '';
    
    try {
        const text = await file.text();
        const allData = parseCSV(text);
        if (allData.length === 0) {
            alert(' Le fichier CSV est vide ou mal formaté.');
            return;
        }
        closeConfigModal();
        showProgressModal(allData.length);

        const batchSize = 15; // Augmenté pour réduire les requêtes
        let processed = 0;
        let totalEanHits = 0;
        let totalTmdbHits = 0;
        let totalNoImage = 0;
        const startTime = Date.now();
        
        for (let i = 0; i < allData.length; i += batchSize) {
            const batch = allData.slice(i, i + batchSize);
            try {
                const res = 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 })
                });
                const result = await res.json();
                if (result.stats) {
                    totalEanHits += (result.stats.ean_hits || 0);
                    totalTmdbHits += (result.stats.tmdb_hits || 0);
                    totalNoImage += (result.stats.no_image || 0);
                }
            } catch (err) { console.error('Erreur sur un lot:', err); }
            
            processed += batch.length;
            const elapsed = ((Date.now() - startTime) / 1000).toFixed(1);
            const speed = (processed / (Date.now() - startTime) * 1000).toFixed(1);
            
            const pct = Math.round((processed / allData.length) * 100);
            document.getElementById('progress-bar').style.width = pct + '%';
            document.getElementById('progress-text').textContent = 
                `Import en cours... (${speed} films/s)`;
            document.getElementById('progress-count').textContent = 
                `${processed} / ${allData.length} | 🖼️ ${totalEanHits} EAN | 🎬 ${totalTmdbHits} TMDB | ❌ ${totalNoImage} sans image | ⏱️ ${elapsed}s`;
        }
        
        closeProgressModal();
        const totalTime = ((Date.now() - startTime) / 1000).toFixed(1);
        alert(`✅ Import terminé en ${totalTime}s !\n📦 ${allData.length} film(s)\n🖼️ ${totalEanHits} jaquette(s) via EAN\n🎬 ${totalTmdbHits} affiche(s) via TMDB\n ${totalNoImage} sans image`);
        loadDashboardData();
    } catch (err) {
        closeProgressModal();
        alert(' Impossible de lire le fichier CSV.');
    }
}

async function saveTmdbKey() {
    const input = document.getElementById('tmdb-key-input'); if (input && input.value) {
        try { const res = await fetch(`${API_URL}?action=save_config`, { method: 'POST', headers: { 'Authorization': localStorage.getItem('token'), 'Content-Type': 'application/json' }, body: JSON.stringify({ key_name: 'tmdb_api_key', key_value: input.value }) }); const data = await res.json(); if (data.success) { alert('✅ Clé API sauvegardée !'); closeConfigModal(); } else { alert('❌ Erreur : ' + (data.error || 'Impossible de sauvegarder.')); } } 
        catch (err) { alert('Erreur de communication avec le serveur.'); }
    }
}
async function saveNewPassword() {
    const pwdInput = document.getElementById('new-password-input'); const pwdConfirm = document.getElementById('new-password-confirm'); const errorMsg = document.getElementById('pwd-error');
    if (!pwdInput || !pwdConfirm) return;
    if (pwdInput.value !== pwdConfirm.value) { errorMsg.textContent = "Les mots de passe ne correspondent pas."; errorMsg.style.display = "block"; return; }
    if (pwdInput.value.length < 4) { errorMsg.textContent = "Le mot de passe doit contenir au moins 4 caractères."; errorMsg.style.display = "block"; return; }
    try { const response = await fetch(`${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 :', err); }
}