// HouseHub — PrintVault module
const API = '/modules/printvault/api.php';
const PV_BASE = 'https://printvault.nas.percolouco.com';

function escHtml(s) { const d = document.createElement('div'); d.textContent = String(s ?? ''); return d.innerHTML; }
function fmtSize(b) { if (!b) return '—'; if (b > 1048576) return (b / 1048576).toFixed(1) + ' Mo'; return Math.round(b / 1024) + ' Ko'; }
function fmtDate(s) { if (!s) return '—'; return new Date(s).toLocaleDateString('fr-FR', { day: '2-digit', month: '2-digit', year: 'numeric' }); }

function toast(msg, type = 'success') {
    const c = document.getElementById('pv-toasts');
    const t = document.createElement('div');
    t.className = 'pv-toast' + (type === 'error' ? ' error' : '');
    t.textContent = msg;
    c.appendChild(t);
    setTimeout(() => t.remove(), 3500);
}

async function api(action, method = 'GET', data = null, extra = '') {
    const opts = { method, credentials: 'same-origin', headers: { 'Accept': 'application/json', 'X-Requested-With': 'XMLHttpRequest' } };
    if (data && !(data instanceof FormData)) {
        opts.headers['Content-Type'] = 'application/json';
        opts.body = JSON.stringify(data);
    } else if (data instanceof FormData) {
        opts.body = data;
    }
    const r = await fetch(API + '?action=' + action + extra, opts);
    const text = await r.text();
    let j;
    try { j = JSON.parse(text); } catch (e) { console.error('Bad JSON:', text.slice(0, 300)); throw new Error('Erreur serveur'); }
    if (!j.ok) throw new Error(j.error || 'Erreur');
    return j.data;
}

// ─── State ────────────────────────────────────────────────────────────────────
let currentCategory = null;
let currentType = null;
let searchQuery = '';
let allModels = [];
let categories = [];

// ─── Init ─────────────────────────────────────────────────────────────────────
document.addEventListener('DOMContentLoaded', () => {
    loadSidebar();
    loadModels();

    document.getElementById('pv-search')?.addEventListener('input', e => {
        searchQuery = e.target.value.trim();
        renderModels();
    });

    document.querySelectorAll('.pv-modal-backdrop').forEach(m =>
        m.addEventListener('click', e => { if (e.target === m) m.classList.remove('show'); })
    );

    // Upload drop zone
    const dz = document.getElementById('pv-drop-zone');
    if (dz) {
        dz.addEventListener('dragover', e => { e.preventDefault(); dz.classList.add('over'); });
        dz.addEventListener('dragleave', () => dz.classList.remove('over'));
        dz.addEventListener('drop', e => {
            e.preventDefault(); dz.classList.remove('over');
            const f = e.dataTransfer.files[0];
            if (f) setUploadFile(f);
        });
        dz.addEventListener('click', () => document.getElementById('pv-file-input').click());
        document.getElementById('pv-file-input').addEventListener('change', e => {
            if (e.target.files[0]) setUploadFile(e.target.files[0]);
        });
    }
});

// ─── Sidebar ──────────────────────────────────────────────────────────────────
async function loadSidebar() {
    try {
        const data = await api('categories');
        categories = data.categories || [];
        renderSidebar();
    } catch (e) { console.error(e); }
}

function renderSidebar() {
    const el = document.getElementById('pv-sidebar-nav');
    let html = `
      <div class="pv-nav-section">Catégories</div>
      <div class="pv-nav-item${currentCategory === null ? ' active' : ''}" onclick="setCategory(null)">
        🗂 Toutes <span class="pv-nav-badge">${allModels.length}</span>
      </div>`;
    categories.forEach(c => {
        const count = allModels.filter(m => m.category === c.name).length;
        html += `<div class="pv-nav-item${currentCategory === c.name ? ' active' : ''}" onclick="setCategory('${escHtml(c.name)}')">
          <span class="pv-cat-dot" style="background:${escHtml(c.color)}"></span>
          <span style="flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">${escHtml(c.name)}</span>
          <span class="pv-nav-badge">${count}</span>
        </div>`;
    });
    el.innerHTML = html;
}

function setCategory(cat) {
    currentCategory = cat;
    renderSidebar();
    renderModels();
}

function setType(type) {
    currentType = currentType === type ? null : type;
    document.querySelectorAll('.pv-chip').forEach(c => {
        c.classList.toggle('active', c.dataset.type === currentType);
    });
    renderModels();
}

// ─── Models ───────────────────────────────────────────────────────────────────
async function loadModels() {
    try {
        const data = await api('models');
        allModels = data.models || [];
        renderSidebar();
        renderModels();
        updateHeader();
    } catch (e) { toast(e.message, 'error'); }
}

function filterModels() {
    return allModels.filter(m => {
        if (currentCategory && m.category !== currentCategory) return false;
        if (currentType) {
            const ext = m.file_type.toLowerCase();
            if (currentType === 'gcode' && !['gcode','gco','g'].includes(ext)) return false;
            if (currentType !== 'gcode' && ext !== currentType) return false;
        }
        if (searchQuery) {
            const q = searchQuery.toLowerCase();
            if (!m.name.toLowerCase().includes(q) &&
                !(m.description || '').toLowerCase().includes(q) &&
                !(m.tags || '').toLowerCase().includes(q)) return false;
        }
        return true;
    });
}

function renderModels() {
    const el = document.getElementById('pv-grid');
    const filtered = filterModels();

    if (!filtered.length) {
        el.innerHTML = `<div class="pv-empty" style="grid-column:1/-1"><div class="icon">🖨️</div><p>Aucun modèle trouvé.</p></div>`;
        updateHeader(0);
        return;
    }

    el.innerHTML = filtered.map(m => modelCardHtml(m)).join('');
    updateHeader(filtered.length);
}

function modelCardHtml(m) {
    const ext = m.file_type.toLowerCase();
    const typeIcon = { stl: '🟣', '3mf': '🔵', gcode: '🟢', g: '🟢', gco: '🟢' }[ext] || '📄';
    const thumbSrc = m.thumb_filename ? `${PV_BASE}/thumbs/${m.thumb_filename}` : null;
    const thumbHtml = thumbSrc
        ? `<img src="${escHtml(thumbSrc)}" alt="" loading="lazy" onerror="this.parentNode.innerHTML='${typeIcon}'">`
        : typeIcon;

    const dims = m.dim_x > 0 ? `${Math.round(m.dim_x)}×${Math.round(m.dim_y)}×${Math.round(m.dim_z)} mm` : '';
    const gcodeInfo = m.gcode_print_time ? m.gcode_print_time : '';

    return `<div class="pv-card" onclick="openDetail(${m.id})">
      <div class="pv-card-thumb">${thumbHtml}</div>
      <div class="pv-card-body">
        <div class="pv-card-name">${escHtml(m.name)}</div>
        <div class="pv-card-meta">
          <span class="pv-type-badge pv-type-${escHtml(ext)}">${escHtml(m.file_type.toUpperCase())}</span>
          ${dims ? `<span>${escHtml(dims)}</span>` : ''}
          ${gcodeInfo ? `<span>⏱ ${escHtml(gcodeInfo)}</span>` : ''}
          <span style="margin-left:auto">${escHtml(fmtSize(m.file_size))}</span>
        </div>
      </div>
    </div>`;
}

function updateHeader(count) {
    const el = document.getElementById('pv-subtitle');
    if (!el) return;
    const total = count !== undefined ? count : filterModels().length;
    el.textContent = total + ' modèle' + (total > 1 ? 's' : '');
}

// ─── Detail modal ─────────────────────────────────────────────────────────────
function openDetail(id) {
    const m = allModels.find(x => x.id === id);
    if (!m) return;
    const ext = m.file_type.toLowerCase();
    const thumbSrc = m.thumb_filename ? `${PV_BASE}/thumbs/${m.thumb_filename}` : null;
    const typeIcon = { stl: '🟣', '3mf': '🔵', gcode: '🟢', g: '🟢', gco: '🟢' }[ext] || '📄';
    const isGcode = ['gcode','gco','g'].includes(ext);

    document.getElementById('pv-detail-body').innerHTML = `
      <div class="pv-detail-thumb">
        ${thumbSrc ? `<img src="${escHtml(thumbSrc)}" alt="">` : typeIcon}
      </div>
      <div style="font-size:1rem;font-weight:700;color:var(--text-main)">${escHtml(m.name)}</div>
      ${m.description ? `<div style="font-size:.85rem;color:var(--text-muted)">${escHtml(m.description)}</div>` : ''}
      ${m.tags ? `<div style="display:flex;gap:.3rem;flex-wrap:wrap">${m.tags.split(',').filter(Boolean).map(t => `<span style="font-size:.72rem;background:var(--bg-page);border:1px solid var(--border-light);padding:.1rem .45rem;border-radius:999px;color:var(--text-muted)">${escHtml(t.trim())}</span>`).join('')}</div>` : ''}
      <div class="pv-detail-grid">
        <div class="pv-detail-item"><span class="pv-detail-label">Type</span><span class="pv-detail-value"><span class="pv-type-badge pv-type-${escHtml(ext)}">${escHtml(m.file_type.toUpperCase())}</span></span></div>
        <div class="pv-detail-item"><span class="pv-detail-label">Catégorie</span><span class="pv-detail-value">${escHtml(m.category)}</span></div>
        <div class="pv-detail-item"><span class="pv-detail-label">Taille</span><span class="pv-detail-value">${escHtml(fmtSize(m.file_size))}</span></div>
        <div class="pv-detail-item"><span class="pv-detail-label">Ajouté le</span><span class="pv-detail-value">${escHtml(fmtDate(m.created_at))}</span></div>
        ${m.dim_x > 0 ? `<div class="pv-detail-item"><span class="pv-detail-label">Dimensions</span><span class="pv-detail-value">${Math.round(m.dim_x)}×${Math.round(m.dim_y)}×${Math.round(m.dim_z)} mm</span></div>` : ''}
        ${m.volume > 0 ? `<div class="pv-detail-item"><span class="pv-detail-label">Volume</span><span class="pv-detail-value">${m.volume.toFixed(2)} cm³</span></div>` : ''}
        ${isGcode && m.gcode_print_time ? `<div class="pv-detail-item"><span class="pv-detail-label">Temps impression</span><span class="pv-detail-value">${escHtml(m.gcode_print_time)}</span></div>` : ''}
        ${isGcode && m.gcode_filament ? `<div class="pv-detail-item"><span class="pv-detail-label">Filament</span><span class="pv-detail-value">${escHtml(m.gcode_filament)}</span></div>` : ''}
        ${isGcode && m.gcode_nozzle_temp ? `<div class="pv-detail-item"><span class="pv-detail-label">Buse</span><span class="pv-detail-value">${escHtml(m.gcode_nozzle_temp)}</span></div>` : ''}
        ${isGcode && m.gcode_bed_temp ? `<div class="pv-detail-item"><span class="pv-detail-label">Plateau</span><span class="pv-detail-value">${escHtml(m.gcode_bed_temp)}</span></div>` : ''}
      </div>`;

    document.getElementById('pv-detail-3d-btn').onclick = () => window.open(`${PV_BASE}/model/${m.id}`, '_blank');
    document.getElementById('pv-detail-dl-btn').href = `${API}?action=file&id=${m.id}`;
    document.getElementById('pv-detail-del-btn').onclick = () => deleteModel(m.id, m.name);

    document.getElementById('pv-detail-modal').classList.add('show');
}

async function deleteModel(id, name) {
    if (!confirm(`Supprimer "${name}" ?`)) return;
    try {
        await api('models', 'DELETE', null, '&id=' + id);
        document.getElementById('pv-detail-modal').classList.remove('show');
        toast('Modèle supprimé');
        allModels = allModels.filter(m => m.id !== id);
        renderSidebar();
        renderModels();
    } catch (e) { toast(e.message, 'error'); }
}

// ─── Upload modal ─────────────────────────────────────────────────────────────
let uploadFile = null;

function openUpload() {
    uploadFile = null;
    document.getElementById('pv-file-input').value = '';
    document.getElementById('pv-upload-filename').textContent = '';
    document.getElementById('pv-upload-name').value = '';
    document.getElementById('pv-upload-desc').value = '';
    document.getElementById('pv-upload-tags').value = '';
    const catSel = document.getElementById('pv-upload-cat');
    catSel.innerHTML = categories.map(c => `<option value="${escHtml(c.name)}">${escHtml(c.name)}</option>`).join('');
    document.getElementById('pv-upload-progress').style.display = 'none';
    document.getElementById('pv-upload-modal').classList.add('show');
}

function setUploadFile(f) {
    const allowed = ['stl', '3mf', 'gcode', 'gco', 'g'];
    const ext = f.name.split('.').pop().toLowerCase();
    if (!allowed.includes(ext)) { toast('Format non supporté (STL, 3MF, GCode)', 'error'); return; }
    uploadFile = f;
    document.getElementById('pv-upload-filename').textContent = f.name;
    if (!document.getElementById('pv-upload-name').value) {
        document.getElementById('pv-upload-name').value = f.name.replace(/\.[^.]+$/, '').replace(/[_-]/g, ' ');
    }
}

async function saveUpload() {
    if (!uploadFile) { toast('Choisissez un fichier', 'error'); return; }
    const name = document.getElementById('pv-upload-name').value.trim();
    if (!name) { toast('Nom requis', 'error'); return; }

    const fd = new FormData();
    fd.append('file', uploadFile);
    fd.append('name', name);
    fd.append('description', document.getElementById('pv-upload-desc').value);
    fd.append('category', document.getElementById('pv-upload-cat').value);
    fd.append('tags', document.getElementById('pv-upload-tags').value);

    const prog = document.getElementById('pv-upload-progress');
    const bar  = document.getElementById('pv-upload-bar');
    prog.style.display = '';
    bar.style.width = '30%';

    try {
        await api('models', 'POST', fd);
        bar.style.width = '100%';
        setTimeout(() => {
            document.getElementById('pv-upload-modal').classList.remove('show');
            toast('Modèle ajouté ✓');
            loadModels();
        }, 300);
    } catch (e) {
        prog.style.display = 'none';
        toast(e.message, 'error');
    }
}