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* Banner carousel routes — CRUD + active banners + image upload.
*
* GET /api/banners/active → Active banners (any authenticated user)
* GET /api/admin/banners → All banners (admin)
* POST /api/admin/banners → Create banner (admin)
* PUT /api/admin/banners/reorder → Batch reorder (admin)
* PUT /api/admin/banners/:id → Update banner (admin)
* DELETE /api/admin/banners/:id → Delete banner + R2 image (admin)
* POST /api/admin/banners/upload → Upload image to R2 (admin)
*/
const router = require('express').Router();
const multer = require('multer');
const upload = multer({ storage: multer.memoryStorage(), limits: { fileSize: 5 * 1024 * 1024 } });
const { db } = require('../utils/firebase');
const { generateId, now } = require('../utils/helpers');
const { requireAdmin } = require('../middleware/auth');
const { putObject, deleteObject, CDN_URL } = require('../utils/r2');
const { getDoc, queryDocs } = require('../utils/firestore-helpers');
const log = require('../utils/log');
// ── Active banners (any authenticated user) ──
router.get('/banners/active', async (req, res) => {
try {
const timestamp = now();
// Query active banners, then client-filter by date range
const results = await queryDocs(
db.collection('banners').where('isActive', '==', true).orderBy('sortOrder', 'asc'),
);
// Filter by start/end date
const active = results.filter((b) => {
if (b.startDate && b.startDate > timestamp) return false;
if (b.endDate && b.endDate <= timestamp) return false;
return true;
});
res.set('Cache-Control', 'public, max-age=300');
res.json(active);
} catch (err) {
log.error('banners', 'Failed to fetch active banners', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ── All banners (admin) ──
router.get('/admin/banners', async (req, res) => {
try {
if (requireAdmin(req, res)) return;
const results = await queryDocs(db.collection('banners'));
results.sort((a, b) => (a.sortOrder ?? 0) - (b.sortOrder ?? 0));
res.json(results);
} catch (err) {
log.error('banners', 'Failed to fetch all banners', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ── Create banner (admin) ──
router.post('/admin/banners', async (req, res) => {
try {
if (requireAdmin(req, res)) return;
const body = req.body;
Iif (!body) return res.status(400).json({ error: 'Invalid JSON body' });
if (!body.image_url && !body.imageUrl)
return res.status(400).json({ error: 'imageUrl is required' });
const id = generateId();
const timestamp = now();
// Get next sort_order by querying existing banners
const allBanners = await queryDocs(
db.collection('banners').orderBy('sortOrder', 'desc').limit(1),
);
const sortOrder = allBanners.length > 0 ? (allBanners[0].sortOrder || 0) + 1 : 0;
await db.doc(`banners/${id}`).set(
{
id,
title: body.title || null,
imageUrl: body.imageUrl || body.image_url,
actionType: body.actionType || body.action_type || 'NONE',
actionValue: body.actionValue || body.action_value || null,
startDate: body.startDate ?? body.start_date ?? null,
endDate: body.endDate ?? body.end_date ?? null,
sortOrder,
isActive: body.isActive === undefined ? body.is_active !== false : !!body.isActive,
createdAt: timestamp,
updatedAt: timestamp,
},
{ merge: true },
);
res.json({ success: true, id });
} catch (err) {
log.error('banners', 'Failed to create banner', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ── Batch reorder (admin) — must be before /:id route ──
router.put('/admin/banners/reorder', async (req, res) => {
try {
if (requireAdmin(req, res)) return;
const body = req.body;
if (!Array.isArray(body))
return res.status(400).json({ error: 'Expected array of {id, sort_order}' });
const timestamp = now();
// Batch write in chunks of 500
for (let i = 0; i < body.length; i += 500) {
const chunk = body.slice(i, i + 500);
const batch = db.batch();
for (const item of chunk) {
batch.set(
db.doc(`banners/${item.id}`),
{
sortOrder: item.sort_order ?? item.sortOrder,
updatedAt: timestamp,
},
{ merge: true },
);
}
await batch.commit();
}
res.json({ success: true });
} catch (err) {
log.error('banners', 'Failed to reorder banners', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ── Update banner (admin) ──
router.put('/admin/banners/:id', async (req, res) => {
try {
if (requireAdmin(req, res)) return;
const body = req.body;
Iif (!body) return res.status(400).json({ error: 'Invalid JSON body' });
const existing = await getDoc(`banners/${req.params.id}`);
if (!existing) return res.status(404).json({ error: 'Banner not found' });
const fields = {};
if (body.title !== undefined) fields.title = body.title || null;
if (body.imageUrl !== undefined || body.image_url !== undefined) {
fields.imageUrl = body.imageUrl ?? body.image_url;
}
if (body.actionType !== undefined || body.action_type !== undefined) {
fields.actionType = body.actionType ?? body.action_type;
}
Iif (body.actionValue !== undefined || body.action_value !== undefined) {
fields.actionValue = (body.actionValue ?? body.action_value) || null;
}
Iif (body.startDate !== undefined || body.start_date !== undefined) {
fields.startDate = body.startDate ?? body.start_date;
}
Iif (body.endDate !== undefined || body.end_date !== undefined) {
fields.endDate = body.endDate ?? body.end_date;
}
if (body.isActive !== undefined || body.is_active !== undefined) {
fields.isActive = !!(body.isActive ?? body.is_active);
}
if (Object.keys(fields).length === 0)
return res.status(400).json({ error: 'No fields to update' });
fields.updatedAt = now();
await db.doc(`banners/${req.params.id}`).update(fields);
res.json({ success: true });
} catch (err) {
log.error('banners', 'Failed to update banner', {
bannerId: req.params.id,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ── Delete banner (admin) ──
router.delete('/admin/banners/:id', async (req, res) => {
try {
if (requireAdmin(req, res)) return;
const banner = await getDoc(`banners/${req.params.id}`);
if (!banner) return res.status(404).json({ error: 'Banner not found' });
// Delete R2 object if it's our CDN URL
const CDN_PREFIX = CDN_URL + '/';
if (banner.imageUrl?.startsWith(CDN_PREFIX)) {
const key = banner.imageUrl.slice(CDN_PREFIX.length);
await deleteObject(key);
}
await db.doc(`banners/${req.params.id}`).delete();
res.json({ success: true });
} catch (err) {
log.error('banners', 'Failed to delete banner', {
bannerId: req.params.id,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ── Upload banner image to R2 (admin) ──
router.post('/admin/banners/upload', upload.single('file'), async (req, res) => {
try {
if (requireAdmin(req, res)) return;
const file = req.file;
if (!file) {
return res.status(400).json({ error: 'No file uploaded' });
}
const mimeToExt = {
'image/jpeg': 'jpg',
'image/png': 'png',
'image/webp': 'webp',
'image/gif': 'gif',
};
const ext = mimeToExt[file.mimetype] || 'jpg';
const key = `banners/${generateId()}_${Date.now()}.${ext}`;
await putObject(key, file.buffer, file.mimetype);
const imageUrl = `${CDN_URL}/${key}`;
res.json({ success: true, image_url: imageUrl, imageUrl, key });
} catch (err) {
log.error('banners', 'Failed to upload banner image', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
module.exports = router;
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