/**
 * captura.js — Data entry logic for Nexus Autoparts
 * 3 sections: OEM Parts, Aftermarket/Interchange, Images
 */
(function () {
    'use strict';

    var API = '';
    var currentMye = null;       // selected vehicle MYE id
    var currentVehicle = null;    // vehicle info object
    var vehicleParts = [];        // existing parts for current vehicle
    var manufacturers = [];       // cached manufacturer list
    var vehicleStatus = 'pending';
    var vehiclePage = 1;

    // ================================================================
    // Utility
    // ================================================================

    function toast(msg, type) {
        var el = document.createElement('div');
        el.className = 'toast ' + (type || 'success');
        el.textContent = msg;
        document.body.appendChild(el);
        setTimeout(function () { el.remove(); }, 3000);
    }

    function api(path, opts) {
        opts = opts || {};
        return fetch(API + path, opts).then(function (r) {
            if (!r.ok) return r.json().then(function (d) { throw new Error(d.error || 'Error'); });
            return r.json();
        });
    }

    function esc(s) {
        if (!s) return '';
        var d = document.createElement('div');
        d.textContent = s;
        return d.innerHTML;
    }

    // ================================================================
    // Tab Switching
    // ================================================================

    document.querySelectorAll('.captura-tab').forEach(function (tab) {
        tab.addEventListener('click', function () {
            document.querySelectorAll('.captura-tab').forEach(function (t) { t.classList.remove('active'); });
            document.querySelectorAll('.captura-section').forEach(function (s) { s.classList.remove('active'); });
            tab.classList.add('active');
            var target = tab.getAttribute('data-tab');
            document.getElementById('section-' + target).classList.add('active');

            if (target === 'aftermarket') loadPartsWithoutAftermarket();
            if (target === 'images') loadPartsWithoutImage();
        });
    });

    // ================================================================
    // SECTION 1: OEM Parts
    // ================================================================

    // --- Status tabs ---
    document.querySelectorAll('.status-tab').forEach(function (tab) {
        tab.addEventListener('click', function () {
            document.querySelectorAll('.status-tab').forEach(function (t) { t.classList.remove('active'); });
            tab.classList.add('active');
            vehicleStatus = tab.getAttribute('data-status');
            vehiclePage = 1;
            loadVehicles();
        });
    });

    // --- Brand filter ---
    function loadBrands() {
        api('/api/brands').then(function (brands) {
            var sel = document.getElementById('oem-brand-filter');
            brands.forEach(function (b) {
                var opt = document.createElement('option');
                opt.value = b;
                opt.textContent = b;
                sel.appendChild(opt);
            });
        });
    }

    document.getElementById('oem-brand-filter').addEventListener('change', function () {
        vehiclePage = 1;
        loadVehicles();
    });

    var modelTimer = null;
    document.getElementById('oem-model-filter').addEventListener('input', function () {
        clearTimeout(modelTimer);
        modelTimer = setTimeout(function () {
            vehiclePage = 1;
            loadVehicles();
        }, 400);
    });

    // --- Load vehicles ---
    function loadVehicles() {
        var brand = document.getElementById('oem-brand-filter').value;
        var model = document.getElementById('oem-model-filter').value;
        var list = document.getElementById('oem-vehicle-list');
        list.innerHTML = '<div class="loading"><div class="spinner"></div></div>';

        var endpoint = vehicleStatus === 'pending'
            ? '/api/captura/vehicles/pending'
            : '/api/captura/vehicles/in-progress';

        var params = '?page=' + vehiclePage + '&per_page=30';
        if (brand) params += '&brand=' + encodeURIComponent(brand);
        if (model) params += '&model=' + encodeURIComponent(model);

        api(endpoint + params).then(function (res) {
            var data = res.data || [];
            if (data.length === 0) {
                list.innerHTML = '<div class="empty-state"><div class="es-icon">&#128203;</div><div class="es-text">No hay vehiculos ' +
                    (vehicleStatus === 'pending' ? 'pendientes' : 'en progreso') + '</div></div>';
                document.getElementById('oem-vehicle-pagination').innerHTML = '';
                return;
            }

            list.innerHTML = data.map(function (v) {
                return '<div class="vehicle-card" data-mye="' + v.id_mye + '">' +
                    '<div class="vc-brand">' + esc(v.brand) + '</div>' +
                    '<div class="vc-model">' + esc(v.model) + '</div>' +
                    '<div class="vc-details">' + v.year + ' &middot; ' + esc(v.engine) +
                    (v.trim_level ? ' &middot; ' + esc(v.trim_level) : '') + '</div>' +
                    (v.parts_count ? '<div class="vc-parts-count">' + v.parts_count + ' partes registradas</div>' : '') +
                    '</div>';
            }).join('');

            // Click handler for vehicle cards
            list.querySelectorAll('.vehicle-card').forEach(function (card) {
                card.addEventListener('click', function () {
                    selectVehicle(parseInt(card.getAttribute('data-mye')));
                });
            });

            // Pagination
            renderPagination('oem-vehicle-pagination', res.pagination, function (p) {
                vehiclePage = p;
                loadVehicles();
            });
        });
    }

    function renderPagination(containerId, pag, onPage) {
        var c = document.getElementById(containerId);
        if (!pag || pag.total_pages <= 1) { c.innerHTML = ''; return; }
        c.innerHTML = '<button ' + (pag.page <= 1 ? 'disabled' : '') + ' data-p="' + (pag.page - 1) + '">&laquo; Anterior</button>' +
            '<span class="page-info">Pag ' + pag.page + ' de ' + pag.total_pages + ' (' + pag.total + ' total)</span>' +
            '<button ' + (pag.page >= pag.total_pages ? 'disabled' : '') + ' data-p="' + (pag.page + 1) + '">Siguiente &raquo;</button>';
        c.querySelectorAll('button').forEach(function (btn) {
            btn.addEventListener('click', function () {
                onPage(parseInt(btn.getAttribute('data-p')));
            });
        });
    }

    // --- Select vehicle and show part entry ---
    function selectVehicle(myeId) {
        currentMye = myeId;
        document.getElementById('oem-vehicle-select').style.display = 'none';
        document.getElementById('oem-part-entry').style.display = 'block';

        // Mark as in_progress
        api('/api/captura/vehicles/' + myeId + '/status', {
            method: 'PUT',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ status: 'in_progress' })
        });

        loadVehicleParts(myeId);
    }

    function loadVehicleParts(myeId) {
        api('/api/captura/vehicles/' + myeId + '/parts').then(function (res) {
            currentVehicle = res.vehicle;
            vehicleParts = res.parts || [];

            // Render vehicle header
            var hdr = document.getElementById('oem-vehicle-header');
            hdr.innerHTML = '<div class="vh-info">' +
                '<div><div class="vh-label">Marca</div><div class="vh-value vh-brand">' + esc(currentVehicle.brand) + '</div></div>' +
                '<div><div class="vh-label">Modelo</div><div class="vh-value">' + esc(currentVehicle.model) + '</div></div>' +
                '<div><div class="vh-label">Ano</div><div class="vh-value">' + currentVehicle.year + '</div></div>' +
                '<div><div class="vh-label">Motor</div><div class="vh-value">' + esc(currentVehicle.engine) + '</div></div>' +
                (currentVehicle.trim_level ? '<div><div class="vh-label">Trim</div><div class="vh-value">' + esc(currentVehicle.trim_level) + '</div></div>' : '') +
                '</div>' +
                '<div class="vh-actions">' +
                '<button class="btn btn-secondary" id="btn-back-vehicles">&#9664; Volver</button>' +
                '<button class="btn btn-primary" id="btn-complete-vehicle">Terminado &#10003;</button>' +
                '</div>';

            document.getElementById('btn-back-vehicles').addEventListener('click', backToVehicles);
            document.getElementById('btn-complete-vehicle').addEventListener('click', completeVehicle);

            // Build groups by category
            renderGroups(res.groups, vehicleParts);
            updateProgress();
        });
    }

    function backToVehicles() {
        document.getElementById('oem-vehicle-select').style.display = 'block';
        document.getElementById('oem-part-entry').style.display = 'none';
        currentMye = null;
        loadVehicles();
    }

    function completeVehicle() {
        if (vehicleParts.length === 0) {
            toast('Registra al menos una parte antes de marcar como terminado', 'error');
            return;
        }
        api('/api/captura/vehicles/' + currentMye + '/status', {
            method: 'PUT',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ status: 'completed' })
        }).then(function () {
            toast('Vehiculo completado');
            backToVehicles();
        });
    }

    // --- Render groups/categories ---
    function renderGroups(groups, parts) {
        var container = document.getElementById('oem-groups-container');
        // Group by category
        var categories = {};
        groups.forEach(function (g) {
            if (!categories[g.category]) {
                categories[g.category] = { id: g.id_part_category, groups: [] };
            }
            categories[g.category].groups.push(g);
        });

        var html = '';
        Object.keys(categories).forEach(function (catName) {
            var cat = categories[catName];
            var catParts = parts.filter(function (p) {
                return cat.groups.some(function (g) { return g.id_part_group === p.group_id; });
            });

            html += '<div class="category-section">' +
                '<div class="category-header" data-cat="' + cat.id + '">' +
                '<h3>' + esc(catName) + ' (' + catParts.length + ')</h3>' +
                '<span class="cat-toggle">&#9660;</span></div>' +
                '<div class="category-body" data-cat-body="' + cat.id + '">';

            cat.groups.forEach(function (g) {
                var groupParts = parts.filter(function (p) { return p.group_id === g.id_part_group; });
                html += '<div class="group-section" data-group="' + g.id_part_group + '">' +
                    '<div class="group-name">' + esc(g.group_name) + '</div>' +
                    '<div class="part-rows" data-group-parts="' + g.id_part_group + '">';

                groupParts.forEach(function (p) {
                    html += savedPartRow(p);
                });

                html += '</div>' +
                    '<button class="btn-add-part" data-group-id="' + g.id_part_group + '">+ Agregar pieza</button>' +
                    '</div>';
            });

            html += '</div></div>';
        });

        container.innerHTML = html;

        // Category toggle
        container.querySelectorAll('.category-header').forEach(function (ch) {
            ch.addEventListener('click', function () {
                var catId = ch.getAttribute('data-cat');
                var body = container.querySelector('[data-cat-body="' + catId + '"]');
                ch.classList.toggle('collapsed');
                body.classList.toggle('collapsed');
            });
        });

        // Add part buttons
        container.querySelectorAll('.btn-add-part').forEach(function (btn) {
            btn.addEventListener('click', function () {
                addPartRow(parseInt(btn.getAttribute('data-group-id')), btn);
            });
        });
    }

    function savedPartRow(p) {
        return '<div class="part-row saved" data-fitment-id="' + p.id_vehicle_part + '">' +
            '<input class="pr-oem" value="' + esc(p.oem_part_number) + '" readonly>' +
            '<input class="pr-name" value="' + esc(p.name_part || '') + '" readonly>' +
            '<input class="pr-qty" value="' + (p.quantity_required || 1) + '" readonly>' +
            '<button class="pr-btn pr-delete" title="Eliminar">&#10005;</button>' +
            '</div>';
    }

    function addPartRow(groupId, addBtn) {
        var rowsContainer = document.querySelector('[data-group-parts="' + groupId + '"]');
        var row = document.createElement('div');
        row.className = 'part-row';
        row.innerHTML = '<input class="pr-oem" placeholder="# OEM" data-group="' + groupId + '">' +
            '<input class="pr-name" placeholder="Nombre pieza">' +
            '<input class="pr-qty" value="1" type="number" min="1">' +
            '<button class="pr-btn pr-save" title="Guardar">&#10003;</button>' +
            '<button class="pr-btn pr-delete" title="Quitar">&#10005;</button>';

        rowsContainer.appendChild(row);

        // Focus OEM field
        row.querySelector('.pr-oem').focus();

        // OEM blur: check if exists
        row.querySelector('.pr-oem').addEventListener('blur', function () {
            var oem = this.value.trim();
            if (!oem) return;
            api('/api/captura/parts/check-oem?oem=' + encodeURIComponent(oem)).then(function (res) {
                if (res.exists) {
                    row.querySelector('.pr-name').value = res.part.name_part || '';
                    row.querySelector('.pr-name').style.borderColor = 'var(--success)';
                    row.dataset.existingPartId = res.part.id_part;
                }
            });
        });

        // Save
        row.querySelector('.pr-save').addEventListener('click', function () {
            savePart(row, groupId);
        });

        // Delete (unsaved)
        row.querySelector('.pr-delete').addEventListener('click', function () {
            row.remove();
        });
    }

    function savePart(row, groupId) {
        var oem = row.querySelector('.pr-oem').value.trim();
        var name = row.querySelector('.pr-name').value.trim();
        var qty = parseInt(row.querySelector('.pr-qty').value) || 1;

        if (!oem) {
            toast('Ingresa el numero OEM', 'error');
            row.querySelector('.pr-oem').focus();
            return;
        }

        var saveBtn = row.querySelector('.pr-save');
        saveBtn.disabled = true;
        saveBtn.textContent = '...';

        // Check if part already exists
        var existingId = row.dataset.existingPartId;

        function createFitment(partId) {
            api('/api/admin/fitment', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({
                    model_year_engine_id: currentMye,
                    part_id: partId,
                    quantity_required: qty
                })
            }).then(function (res) {
                // Replace row with saved version
                var newPart = {
                    id_vehicle_part: res.id,
                    part_id: partId,
                    oem_part_number: oem,
                    name_part: name,
                    quantity_required: qty,
                    group_id: groupId
                };
                vehicleParts.push(newPart);
                row.outerHTML = savedPartRow(newPart);
                updateProgress();
                toast('Parte guardada: ' + oem);

                // Re-attach delete handlers
                attachDeleteHandlers();
            }).catch(function (err) {
                toast(err.message, 'error');
                saveBtn.disabled = false;
                saveBtn.textContent = '\u2713';
            });
        }

        if (existingId) {
            createFitment(parseInt(existingId));
        } else {
            // Create part first
            api('/api/admin/parts', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({
                    oem_part_number: oem,
                    name: name || oem,
                    group_id: groupId
                })
            }).then(function (res) {
                createFitment(res.id);
            }).catch(function (err) {
                toast(err.message, 'error');
                saveBtn.disabled = false;
                saveBtn.textContent = '\u2713';
            });
        }
    }

    function attachDeleteHandlers() {
        document.querySelectorAll('.part-row.saved .pr-delete').forEach(function (btn) {
            btn.onclick = function () {
                var row = btn.closest('.part-row');
                var fitmentId = row.getAttribute('data-fitment-id');
                if (!fitmentId) { row.remove(); return; }

                api('/api/admin/fitment/' + fitmentId, { method: 'DELETE' }).then(function () {
                    vehicleParts = vehicleParts.filter(function (p) {
                        return p.id_vehicle_part !== parseInt(fitmentId);
                    });
                    row.remove();
                    updateProgress();
                    toast('Parte eliminada');
                }).catch(function (err) {
                    toast(err.message, 'error');
                });
            };
        });
    }

    function updateProgress() {
        var count = vehicleParts.length;
        var totalGroups = 63;
        var pct = Math.min(100, Math.round((count / totalGroups) * 100));
        document.getElementById('oem-progress-fill').style.width = pct + '%';
        document.getElementById('oem-progress-text').textContent = count + ' partes registradas';

        // Update category counts
        document.querySelectorAll('.category-header h3').forEach(function (h3) {
            var catSection = h3.closest('.category-section');
            var rows = catSection.querySelectorAll('.part-row.saved');
            var catName = h3.textContent.replace(/\s*\(\d+\)$/, '');
            h3.textContent = catName + ' (' + rows.length + ')';
        });
    }

    // ================================================================
    // SECTION 2: Aftermarket / Interchange
    // ================================================================

    var aftermarketPage = 1;

    function loadPartsWithoutAftermarket(page) {
        page = page || 1;
        aftermarketPage = page;
        var search = document.getElementById('aftermarket-search').value;
        var list = document.getElementById('aftermarket-list');
        list.innerHTML = '<div class="loading"><div class="spinner"></div></div>';

        var params = '?page=' + page + '&per_page=20';
        if (search) params += '&search=' + encodeURIComponent(search);

        api('/api/captura/parts/without-aftermarket' + params).then(function (res) {
            var data = res.data || [];
            if (data.length === 0) {
                list.innerHTML = '<div class="empty-state"><div class="es-icon">&#9989;</div><div class="es-text">No hay piezas sin intercambios</div></div>';
                document.getElementById('aftermarket-pagination').innerHTML = '';
                return;
            }

            list.innerHTML = data.map(function (p) {
                return '<div class="part-detail-card" data-part-id="' + p.id_part + '">' +
                    '<div class="pdc-header">' +
                    '<div><span class="pdc-oem">' + esc(p.oem_part_number) + '</span>' +
                    ' <span class="pdc-name">' + esc(p.name_part) + '</span></div>' +
                    '<span class="pdc-group">' + esc(p.category) + ' &rsaquo; ' + esc(p.group_name) + '</span></div>' +
                    '<div class="aftermarket-existing" data-af-list="' + p.id_part + '"></div>' +
                    '<div class="aftermarket-form" data-af-form="' + p.id_part + '">' +
                    '<div class="af-field"><label>Fabricante</label>' +
                    '<select class="af-manufacturer">' + manufacturerOptions() + '</select></div>' +
                    '<div class="af-field"><label># Aftermarket</label>' +
                    '<input class="af-partnum" placeholder="Ej: MK1234"></div>' +
                    '<div class="af-field"><label>Nombre</label>' +
                    '<input class="af-name" placeholder="Nombre pieza"></div>' +
                    '<div class="af-field"><label>Calidad</label>' +
                    '<select class="af-quality">' +
                    '<option value="standard">Standard</option>' +
                    '<option value="economy">Economy</option>' +
                    '<option value="oem">OEM</option>' +
                    '<option value="premium">Premium</option></select></div>' +
                    '<div class="af-field"><label>Precio USD</label>' +
                    '<input class="af-price" type="number" step="0.01" placeholder="0.00" style="width:80px"></div>' +
                    '<div class="af-field"><label>Garantia (meses)</label>' +
                    '<input class="af-warranty" type="number" placeholder="12" style="width:70px"></div>' +
                    '<button class="btn btn-primary af-save-btn" style="padding:0.4rem 1rem">+ Agregar</button>' +
                    '</div></div>';
            }).join('');

            // Load existing aftermarket for each part
            data.forEach(function (p) {
                loadPartAftermarket(p.id_part);
            });

            // Save handlers
            list.querySelectorAll('.af-save-btn').forEach(function (btn) {
                btn.addEventListener('click', function () {
                    var card = btn.closest('.part-detail-card');
                    saveAftermarket(card);
                });
            });

            renderPagination('aftermarket-pagination', res.pagination, function (p) {
                loadPartsWithoutAftermarket(p);
            });
        });
    }

    function manufacturerOptions() {
        return manufacturers.map(function (m) {
            return '<option value="' + m.id + '">' + esc(m.name) + '</option>';
        }).join('');
    }

    function loadPartAftermarket(partId) {
        api('/api/captura/parts/' + partId + '/aftermarket').then(function (items) {
            var container = document.querySelector('[data-af-list="' + partId + '"]');
            if (items.length === 0) {
                container.innerHTML = '<p style="font-size:0.8rem;color:var(--text-secondary);margin-bottom:0.5rem">Sin intercambios registrados</p>';
                return;
            }
            var html = '<table class="aftermarket-table"><thead><tr>' +
                '<th>Fabricante</th><th># Parte</th><th>Nombre</th><th>Calidad</th><th>Precio</th><th>Garantia</th></tr></thead><tbody>';
            items.forEach(function (a) {
                html += '<tr><td>' + esc(a.manufacturer) + '</td><td>' + esc(a.part_number) +
                    '</td><td>' + esc(a.name || '') + '</td><td>' + esc(a.quality || '') +
                    '</td><td>' + (a.price_usd ? '$' + a.price_usd : '') +
                    '</td><td>' + (a.warranty_months || '') + '</td></tr>';
            });
            html += '</tbody></table>';
            container.innerHTML = html;
        });
    }

    function saveAftermarket(card) {
        var partId = card.getAttribute('data-part-id');
        var manufacturer = card.querySelector('.af-manufacturer').value;
        var partNumber = card.querySelector('.af-partnum').value.trim();
        var name = card.querySelector('.af-name').value.trim();
        var quality = card.querySelector('.af-quality').value;
        var price = card.querySelector('.af-price').value;
        var warranty = card.querySelector('.af-warranty').value;

        if (!partNumber) {
            toast('Ingresa el numero de parte aftermarket', 'error');
            return;
        }

        api('/api/admin/aftermarket', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({
                oem_part_id: parseInt(partId),
                manufacturer_id: parseInt(manufacturer),
                part_number: partNumber,
                name: name,
                quality_tier: quality,
                price_usd: price ? parseFloat(price) : null,
                warranty_months: warranty ? parseInt(warranty) : null
            })
        }).then(function () {
            toast('Intercambio guardado: ' + partNumber);
            // Clear form
            card.querySelector('.af-partnum').value = '';
            card.querySelector('.af-name').value = '';
            card.querySelector('.af-price').value = '';
            card.querySelector('.af-warranty').value = '';
            // Reload aftermarket list
            loadPartAftermarket(parseInt(partId));
        }).catch(function (err) {
            toast(err.message, 'error');
        });
    }

    // ================================================================
    // SECTION 3: Images
    // ================================================================

    var imagePage = 1;

    function loadPartsWithoutImage(page) {
        page = page || 1;
        imagePage = page;
        var search = document.getElementById('image-search').value;
        var list = document.getElementById('image-list');
        list.innerHTML = '<div class="loading"><div class="spinner"></div></div>';

        var params = '?page=' + page + '&per_page=20';
        if (search) params += '&search=' + encodeURIComponent(search);

        api('/api/captura/parts/without-image' + params).then(function (res) {
            var data = res.data || [];
            if (data.length === 0) {
                list.innerHTML = '<div class="empty-state"><div class="es-icon">&#128247;</div><div class="es-text">No hay piezas sin imagen</div></div>';
                document.getElementById('image-pagination').innerHTML = '';
                return;
            }

            list.innerHTML = data.map(function (p) {
                return '<div class="image-card" data-part-id="' + p.id_part + '">' +
                    '<div class="ic-preview"><span>Sin imagen</span></div>' +
                    '<div class="ic-info">' +
                    '<div class="ic-oem">' + esc(p.oem_part_number) + '</div>' +
                    '<div class="ic-name">' + esc(p.name_part) + ' &middot; ' + esc(p.group_name) + '</div>' +
                    '<div class="ic-upload">' +
                    '<input type="file" accept="image/jpeg,image/png,image/webp" class="ic-file-input">' +
                    '<button class="btn btn-primary ic-upload-btn" style="padding:0.3rem 0.8rem;font-size:0.8rem" disabled>Subir</button>' +
                    '</div></div></div>';
            }).join('');

            // File input change → enable upload button and show preview
            list.querySelectorAll('.ic-file-input').forEach(function (input) {
                input.addEventListener('change', function () {
                    var card = input.closest('.image-card');
                    var btn = card.querySelector('.ic-upload-btn');
                    var preview = card.querySelector('.ic-preview');

                    if (input.files && input.files[0]) {
                        btn.disabled = false;

                        // Show preview
                        var reader = new FileReader();
                        reader.onload = function (e) {
                            preview.innerHTML = '<img src="' + e.target.result + '">';
                        };
                        reader.readAsDataURL(input.files[0]);
                    }
                });
            });

            // Upload button
            list.querySelectorAll('.ic-upload-btn').forEach(function (btn) {
                btn.addEventListener('click', function () {
                    var card = btn.closest('.image-card');
                    uploadImage(card);
                });
            });

            renderPagination('image-pagination', res.pagination, function (p) {
                loadPartsWithoutImage(p);
            });
        });
    }

    function uploadImage(card) {
        var partId = card.getAttribute('data-part-id');
        var fileInput = card.querySelector('.ic-file-input');
        var btn = card.querySelector('.ic-upload-btn');

        if (!fileInput.files || !fileInput.files[0]) return;

        btn.disabled = true;
        btn.textContent = 'Subiendo...';

        var formData = new FormData();
        formData.append('image', fileInput.files[0]);

        fetch(API + '/api/captura/parts/' + partId + '/image', {
            method: 'POST',
            body: formData
        }).then(function (r) { return r.json(); })
            .then(function (res) {
                if (res.error) throw new Error(res.error);
                toast('Imagen subida correctamente');
                // Remove card from list
                card.style.opacity = '0.3';
                setTimeout(function () { card.remove(); }, 500);
            }).catch(function (err) {
                toast(err.message, 'error');
                btn.disabled = false;
                btn.textContent = 'Subir';
            });
    }

    // ================================================================
    // Init
    // ================================================================

    function init() {
        loadBrands();
        loadVehicles();

        // Pre-load manufacturers for Section 2
        api('/api/captura/manufacturers').then(function (data) {
            manufacturers = data;
        });
    }

    // Make functions globally accessible for inline onclick handlers
    window.loadPartsWithoutAftermarket = loadPartsWithoutAftermarket;
    window.loadPartsWithoutImage = loadPartsWithoutImage;

    init();
})();