u

src/api/routes/article/media.js

@@ -14,6 +14,7 @@ import {
     parseFullHash,
     articleErrorStatus,
     interpolateString,
+    interpolateObjects,
 } from './shared.js';
 
 /**
@@ -366,7 +367,8 @@ export function register(app, basePath = '') {
         if (skuError) return res.status(400).json({ error: skuError });
         const sku = parsedSku;
 
-        const { templateId, agentprinterId, quantity } = req.body ?? {};
+        const { templateId, quantity } = req.body ?? {};
+        const agentprinterId = req.body?.agentprinterId ?? req.body?.printerId;
 
         if (templateId === undefined || templateId === null) {
             return res.status(400).json({ error: 'templateId is required' });
@@ -433,16 +435,7 @@ export function register(app, basePath = '') {
                         ? content
                         : [];
 
-                const interpolatedObjects = objects.map(obj => {
+                const interpolatedObjects = interpolateObjects(objects, article);
-                    const cloned = { ...obj };
-                    if (typeof cloned.text === 'string') {
-                        cloned.text = interpolateString(cloned.text, article);
-                    }
-                    if (typeof cloned.code === 'string') {
-                        cloned.code = interpolateString(cloned.code, article);
-                    }
-                    return cloned;
-                });
 
                 const printPayload = await renderLabel({
                     width: template.width,

src/api/routes/article/shared.js

@@ -149,7 +149,8 @@ export function interpolateString(str, article) {
 
 export function interpolateObjects(objects, article) {
     if (!Array.isArray(objects)) return [];
-    const ean = Array.isArray(article?.eans) && article.eans.length > 0 ? String(article.eans[0]) : '';
+    const ean = Array.isArray(article?.eans) && article.eans.length > 0 ? String(article.eans[0]).trim() : '';
+    const sku = String(article?.sku ?? '').trim();
 
     return objects.map((obj) => {
         const cloned = { ...obj };
@@ -161,6 +162,14 @@ export function interpolateObjects(objects, article) {
             if (rawCode === '0' || /^0+$/.test(rawCode)) {
                 if (ean) {
                     cloned.code = ean;
+                    if (ean.length === 8) {
+                        cloned.format = 'EAN8';
+                    } else if (ean.length === 12 || ean.length === 13) {
+                        cloned.format = 'EAN13';
+                    }
+                } else if (sku) {
+                    cloned.code = sku;
+                    cloned.format = 'CODE128';
                 }
             } else if (typeof cloned.code === 'string') {
                 cloned.code = interpolateString(cloned.code, article);

src/api/routes/labeltemplate.js

@@ -96,12 +96,45 @@ export function register(app, basePath = '') {
 
         try {
             const templates = await db.list(req.user.id);
-            res.status(200).json({
+
-                labeltemplates: templates.map((t) => {
+            let article = null;
+            if (req.query?.sku) {
+                const skuStr = String(req.query.sku).trim();
+                const result = await articleDb.getBySku(req.user.id, skuStr);
+                if (result?.article) {
+                    article = result.article;
+                }
+            }
+
+            const labeltemplates = await Promise.all(
+                templates.map(async (t) => {
                     const { content, ...rest } = serializeTemplate(t);
+                    if (article) {
+                        try {
+                            const full = await db.getById(req.user.id, t.id);
+                            const objects = Array.isArray(full?.content?.objects)
+                                ? full.content.objects
+                                : Array.isArray(full?.content)
+                                    ? full.content
+                                    : null;
+                            if (objects && objects.length > 0) {
+                                const interpolated = interpolateObjects(objects, article);
+                                const thumbBuffer = await renderThumb({
+                                    width: t.width,
+                                    height: t.height,
+                                    objects: interpolated,
+                                });
+                                rest.thumb = thumbBuffer.toString('base64');
+                            }
+                        } catch (err) {
+                            console.error(`Failed to render preview thumb for template ${t.id} with sku ${req.query.sku}:`, err);
+                        }
+                    }
                     return rest;
                 })
-            });
+            );
+
+            res.status(200).json({ labeltemplates });
         } catch (error) {
             const status = labeltemplateErrorStatus(error);
             if (status === 500) console.error('List label templates failed:', error);
@@ -175,7 +208,32 @@ export function register(app, basePath = '') {
             if (!template) {
                 return res.status(404).json({ error: 'Label template not found' });
             }
-            res.status(200).json({ labeltemplate: serializeTemplate(template) });
+            const serialized = serializeTemplate(template);
+            if (req.query?.sku) {
+                const skuStr = String(req.query.sku).trim();
+                const result = await articleDb.getBySku(req.user.id, skuStr);
+                if (result?.article) {
+                    const objects = Array.isArray(serialized?.content?.objects)
+                        ? serialized.content.objects
+                        : Array.isArray(serialized?.content)
+                            ? serialized.content
+                            : null;
+                    if (objects && objects.length > 0) {
+                        try {
+                            const interpolated = interpolateObjects(objects, result.article);
+                            const thumbBuffer = await renderThumb({
+                                width: template.width,
+                                height: template.height,
+                                objects: interpolated,
+                            });
+                            serialized.thumb = thumbBuffer.toString('base64');
+                        } catch (err) {
+                            console.error(`Failed to render preview thumb for template ${template.id} with sku ${req.query.sku}:`, err);
+                        }
+                    }
+                }
+            }
+            res.status(200).json({ labeltemplate: serialized });
         } catch (error) {
             const status = labeltemplateErrorStatus(error);
             if (status === 500) console.error('Get label template failed:', error);