feat: add automated PDF invoice generation and storage in Supabase

shop/components/invoice-pdf.tsx

@@ -0,0 +1,168 @@
+import { Document, Page, Text, View, StyleSheet, Font } from '@react-pdf/renderer';
+
+// Create styles
+const styles = StyleSheet.create({
+  page: {
+    padding: 50,
+    fontSize: 10,
+    color: '#333',
+    fontFamily: 'Helvetica',
+  },
+  header: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    marginBottom: 40,
+  },
+  companyInfo: {
+    textAlign: 'right',
+  },
+  title: {
+    fontSize: 24,
+    color: '#000',
+    marginBottom: 20,
+  },
+  section: {
+    marginBottom: 20,
+  },
+  label: {
+    fontSize: 8,
+    color: '#999',
+    textTransform: 'uppercase',
+    marginBottom: 2,
+  },
+  table: {
+    display: 'table',
+    width: 'auto',
+    borderStyle: 'solid',
+    borderWidth: 1,
+    borderColor: '#eee',
+    borderRightWidth: 0,
+    borderBottomWidth: 0,
+    marginBottom: 20,
+  },
+  tableRow: {
+    margin: 'auto',
+    flexDirection: 'row',
+  },
+  tableCol: {
+    width: '60%',
+    borderStyle: 'solid',
+    borderWidth: 1,
+    borderColor: '#eee',
+    borderLeftWidth: 0,
+    borderTopWidth: 0,
+    padding: 8,
+  },
+  tableColPrice: {
+    width: '40%',
+    borderStyle: 'solid',
+    borderWidth: 1,
+    borderColor: '#eee',
+    borderLeftWidth: 0,
+    borderTopWidth: 0,
+    padding: 8,
+    textAlign: 'right',
+  },
+  tableCell: {
+    margin: 'auto',
+    marginTop: 5,
+    fontSize: 10,
+  },
+  total: {
+    flexDirection: 'row',
+    justifyContent: 'flex-end',
+    marginTop: 20,
+    borderTop: 1,
+    borderColor: '#000',
+    paddingTop: 10,
+  },
+  totalLabel: {
+    fontSize: 14,
+    fontWeight: 'bold',
+  },
+  footer: {
+    position: 'absolute',
+    bottom: 30,
+    left: 50,
+    right: 50,
+    textAlign: 'center',
+    color: '#999',
+    fontSize: 8,
+    borderTop: 1,
+    borderColor: '#eee',
+    paddingTop: 10,
+  },
+});
+
+export const InvoicePDF = ({ order, product, modules, customer }: any) => (
+  <Document>
+    <Page size="A4" style={styles.page}>
+      <View style={styles.header}>
+        <View>
+          <Text style={{ fontSize: 18, fontWeight: 'bold' }}>CASPOS</Text>
+          <Text>Software Solutions</Text>
+        </View>
+        <View style={styles.companyInfo}>
+          <Text>CASPOS GmbH</Text>
+          <Text>Musterstraße 1</Text>
+          <Text>12345 Musterstadt</Text>
+          <Text>Deutschland</Text>
+        </View>
+      </View>
+
+      <Text style={styles.title}>Bestellbestätigung / Rechnung</Text>
+
+      <View style={styles.section}>
+        <Text style={styles.label}>Rechnungsempfänger</Text>
+        <Text>{customer.company_name}</Text>
+        <Text>{customer.first_name} {customer.last_name}</Text>
+        <Text>{customer.address}</Text>
+        <Text>{customer.zip_code} {customer.city}</Text>
+        <Text>USt-IdNr: {customer.vat_id}</Text>
+      </View>
+
+      <View style={styles.section}>
+        <Text style={styles.label}>Bestelldetails</Text>
+        <Text>Bestellnummer: {order.id}</Text>
+        <Text>Datum: {new Date().toLocaleDateString('de-DE')}</Text>
+      </View>
+
+      <View style={styles.table}>
+        <View style={[styles.tableRow, { backgroundColor: '#f9f9f9' }]}>
+          <View style={styles.tableCol}><Text style={{ fontWeight: 'bold' }}>Beschreibung</Text></View>
+          <View style={styles.tableColPrice}><Text style={{ fontWeight: 'bold' }}>Preis (mtl.)</Text></View>
+        </View>
+        
+        <View style={styles.tableRow}>
+          <View style={styles.tableCol}><Text>{product.name} (Basispaket)</Text></View>
+          <View style={styles.tableColPrice}><Text>{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(product.base_price)}</Text></View>
+        </View>
+
+        {modules.map((mod: any) => (
+          <View key={mod.id} style={styles.tableRow}>
+            <View style={styles.tableCol}><Text>{mod.name}</Text></View>
+            <View style={styles.tableColPrice}><Text>+{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(mod.additional_price)}</Text></View>
+          </View>
+        ))}
+      </View>
+
+      <View style={styles.total}>
+        <View style={{ width: '40%' }}>
+          <View style={{ flexDirection: 'row', justifyContent: 'space-between' }}>
+            <Text>Zwischensumme:</Text>
+            <Text>{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(order.total_amount)}</Text>
+          </View>
+          <View style={{ flexDirection: 'row', justifyContent: 'space-between', marginTop: 5 }}>
+            <Text style={styles.totalLabel}>Gesamtbetrag:</Text>
+            <Text style={styles.totalLabel}>{new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(order.total_amount)}</Text>
+          </View>
+        </View>
+      </View>
+
+      <View style={styles.footer}>
+        <Text>Vielen Dank für Ihre Bestellung!</Text>
+        <Text>Dies ist ein automatisch generiertes Dokument.</Text>
+      </View>
+    </Page>
+  </Document>
+);

shop/lib/actions/orders.ts

@@ -2,7 +2,9 @@
 
 import { createClient } from '@/lib/supabase/server'
 import { revalidatePath } from 'next/cache'
-import { Order } from '../types'
+import { InvoicePDF } from '@/components/invoice-pdf'
+import { renderToBuffer } from '@react-pdf/renderer'
+import React from 'react'
 
 export async function submitOrder(orderData: {
   product_id: string;
@@ -15,23 +17,77 @@ export async function submitOrder(orderData: {
   const { data: { user } } = await supabase.auth.getUser()
   if (!user) throw new Error('Not authenticated')
 
-  const { data, error } = await supabase
+  // 1. Fetch Product and Module Details for Invoice
+  const { data: product } = await supabase
+    .from('products')
+    .select('*')
+    .eq('id', orderData.product_id)
+    .single()
+
+  const { data: modules } = await supabase
+    .from('product_modules')
+    .select('*')
+    .in('id', orderData.selected_modules)
+
+  if (!product) throw new Error('Product not found')
+
+  // 2. Create the Order in DB
+  const { data: order, error: orderError } = await supabase
     .from('orders')
     .insert([{
       user_id: user.id,
-      total_amount: orderData.total_amount,
-      items: {
+      total_price: orderData.total_amount, // Matched column name in initial_schema.sql
+      order_data: {
         product_id: orderData.product_id,
         modules: orderData.selected_modules
       },
-      billing_details: orderData.customer_details,
+      customer_data: orderData.customer_details,
       status: 'pending'
     }])
     .select()
     .single()
 
-  if (error) throw error
+  if (orderError) throw orderError
 
-  revalidatePath('/admin/orders') // If there was an admin orders page
-  return data
+  // 3. Generate PDF
+  try {
+    const buffer = await renderToBuffer(
+      React.createElement(InvoicePDF, {
+        order: order,
+        product: product,
+        modules: modules || [],
+        customer: orderData.customer_details
+      })
+    )
+
+    // 4. Upload to Supabase Storage
+    const fileName = `invoice_${order.id}.pdf`
+    const { data: uploadData, error: uploadError } = await supabase
+      .storage
+      .from('invoices')
+      .upload(fileName, buffer, {
+        contentType: 'application/pdf',
+        upsert: true
+      })
+
+    if (uploadError) {
+      console.error('PDF Upload Error:', uploadError)
+    } else {
+      // 5. Update Order with PDF URL
+      const { data: publicUrlData } = supabase
+        .storage
+        .from('invoices')
+        .getPublicUrl(fileName)
+
+      await supabase
+        .from('orders')
+        .update({ pdf_url: publicUrlData.publicUrl })
+        .eq('id', order.id)
+    }
+  } catch (pdfError) {
+    console.error('PDF Generation Error:', pdfError)
+  }
+
+  revalidatePath('/protected')
+  return order
 }

shop/supabase/migrations/20260430222242_create_invoice_bucket.sql

@@ -0,0 +1,9 @@
+-- Create bucket for invoices
+INSERT INTO storage.buckets (id, name, public) 
+VALUES ('invoices', 'invoices', true)
+ON CONFLICT (id) DO NOTHING;
+
+-- Policies for invoices bucket
+-- Allow public access to invoices (simplified for this demo, usually should be restricted)
+CREATE POLICY "Public Access" ON storage.objects FOR SELECT USING (bucket_id = 'invoices');
+CREATE POLICY "Authenticated Upload" ON storage.objects FOR INSERT WITH CHECK (bucket_id = 'invoices' AND auth.role() = 'authenticated');