const API_URL = '../api.php';
let allItems = [];
let currentAdminTab = 'critique';

// ── INITIALISATION ──
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 savePwdBtn = document.getElementById('save-password-btn'); 
    if (savePwdBtn) savePwdBtn.addEventListener('click', saveNewPassword);

    // Fermeture des modales en cliquant sur le fond ou la croix
    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`);
        allItems = await res.json();
        
        const secRes = await fetch(`${API_URL}?action=check_security_status`);
        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 filtered = allItems.filter(item => item.type === currentAdminTab);
    
    const countLabel = document.getElementById('admin-count-label');
    if(countLabel) countLabel.textContent = `${filtered.length} élément(s)`;

    filtered.forEach(f => {
        const tr = document.createElement('tr');
        tr.innerHTML = `
            <td style="text-align:center;">
                <input type="checkbox" class="film-checkbox" value="${f.id}" onclick="updateBulkBar()">
            </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">${'★'.repeat(f.rating || 0)}</span>` : `<span class="badge-format">${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);
    });
}

// ── GESTION DE MASSE ──
function toggleSelectAll(source) {
    document.querySelectorAll('.film-checkbox').forEach(cb => cb.checked = source.checked);
    updateBulkBar();
}

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

// ── POP-UP CONFIRMATION SUPPRESSION ──
let pendingDeleteAction = null;

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;
}

// ── ACTIONS CRUD (SUPPRESSION) ──
async function executeBulkDelete() {
    const ids = Array.from(document.querySelectorAll('.film-checkbox:checked')).map(cb => cb.value);
    if (ids.length === 0) return;

    showConfirmModal(async () => {
        try {
            await fetch(`${API_URL}?action=bulk_delete`, {
                method: 'POST',
                headers: { 'Authorization': localStorage.getItem('token'), 'Content-Type': 'application/json' },
                body: JSON.stringify({ ids, type: currentAdminTab })
            });
            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); }
    });
}

async function deleteSingleFilm(id) {
    showConfirmModal(async () => {
        try {
            await fetch(`${API_URL}?action=delete_film&id=${id}&type=${currentAdminTab}`, {
                method: 'DELETE',
                headers: { 'Authorization': localStorage.getItem('token') }
            });
            loadDashboardData();
        } catch (err) { console.error('Erreur delete :', err); }
    });
}

// ── MODALES & UI ──
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;
    document.querySelectorAll('.tab-btn').forEach(b => b.classList.remove('active'));
    const btn = document.getElementById(`btn-tab-${tabName}`);
    if(btn) btn.classList.add('active');
    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'); }
function openConfigModal() { document.getElementById('config-modal').classList.add('open'); }
function closeConfigModal() { document.getElementById('config-modal').classList.remove('open'); }
function openPasswordModal() { 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'; 
}

// ── SAUVEGARDE FILM ──
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,
        // Champs "critiques"
        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 : '',
        // Champs "vidéothèque"
        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 lors de la sauvegarde :', err);
    }
}

// ── GESTION DES FICHIERS CSV ──
async function handleCsvUpload(input) {
    if (!input.files || input.files.length === 0) return;
    
    const file = input.files[0];
    const formData = new FormData();
    formData.append('csv_file', file);
    formData.append('type', currentAdminTab);

    try {
        await fetch(`${API_URL}?action=import_csv`, {
            method: 'POST',
            headers: { 'Authorization': localStorage.getItem('token') },
            body: formData
        });
        input.value = ''; // Réinitialiser le champ
        closeConfigModal();
        loadDashboardData();
    } catch (err) {
        console.error('Erreur lors de l\'importation du fichier CSV :', err);
    }
}

// ── MISE A JOUR DU MOT DE PASSE ──
async function saveNewPassword() {
    const pwdInput = document.getElementById('new-password'); // Assurez-vous que l'ID correspond à votre HTML
    if (!pwdInput) return;

    const newPassword = pwdInput.value;
    if (!newPassword) return;

    try {
        await fetch(`${API_URL}?action=update_password`, {
            method: 'POST',
            headers: { 
                'Authorization': localStorage.getItem('token'),
                'Content-Type': 'application/json' 
            },
            body: JSON.stringify({ new_password: newPassword })
        });
        pwdInput.value = ''; // Vider le champ
        closePasswordModal();
        alert('Mot de passe mis à jour avec succès.');
    } catch (err) {
        console.error('Erreur lors de la mise à jour du mot de passe :', err);
    }
}