feat: Add 1-year filter + search to subscription matrix

v1.3.135:
- Added date filter to e-conomic API (only fetch invoices from last year)
- Implemented product search in billing matrix
- Shows/hides search field based on product count
- Real-time filtering with clear button

VERSION

@@ -1 +1 @@
-1.3.134
+1.3.135

app/customers/frontend/customer_detail.html

@@ -507,6 +507,19 @@
                 </button>
             </div>
             
+            <!-- Search field -->
+            <div class="mb-3" id="matrixSearchContainer" style="display: none;">
+                <div class="input-group">
+                    <span class="input-group-text">
+                        <i class="bi bi-search"></i>
+                    </span>
+                    <input type="text" class="form-control" id="matrixSearchInput" placeholder="Søg efter produkt..." onkeyup="filterMatrixProducts()">
+                    <button class="btn btn-outline-secondary" type="button" onclick="clearMatrixSearch()">
+                        <i class="bi bi-x"></i>
+                    </button>
+                </div>
+            </div>
+            
             <div id="billingMatrixContainer" style="display: none;">
                 <div class="table-responsive">
                     <table class="table table-sm table-hover mb-0" id="billingMatrixTable">
@@ -2304,6 +2317,18 @@ function renderBillingMatrix(matrix) {
         </tr>`;
     }).join('');
     
+    // Populate table body
+    const tableBody = document.getElementById('matrixBodyRows');
+    tableBody.innerHTML = matrixHtml;
+    
+    // Show search container if there are products
+    const searchContainer = document.getElementById('matrixSearchContainer');
+    if (matrix.products.length > 0) {
+        searchContainer.style.display = 'block';
+    } else {
+        searchContainer.style.display = 'none';
+    }
+    
     // Show matrix, hide loading
     document.getElementById('billingMatrixContainer').style.display = 'block';
     document.getElementById('billingMatrixLoading').style.display = 'none';
@@ -2329,6 +2354,55 @@ function formatDKK(amount) {
     return amount.toLocaleString('da-DK', { style: 'currency', currency: 'DKK', minimumFractionDigits: 0 });
 }
 
+/**
+ * Filter products in billing matrix based on search input
+ */
+function filterMatrixProducts() {
+    const searchInput = document.getElementById('matrixSearchInput');
+    const searchTerm = searchInput.value.toLowerCase();
+    const tableBody = document.getElementById('matrixBodyRows');
+    const rows = tableBody.getElementsByTagName('tr');
+    
+    let visibleCount = 0;
+    
+    for (let i = 0; i < rows.length; i++) {
+        const row = rows[i];
+        const productName = row.cells[0].textContent.toLowerCase();
+        
+        if (productName.includes(searchTerm)) {
+            row.style.display = '';
+            visibleCount++;
+        } else {
+            row.style.display = 'none';
+        }
+    }
+    
+    // Show message if no results
+    if (visibleCount === 0 && searchTerm.length > 0) {
+        if (!document.getElementById('matrixNoResults')) {
+            const noResultsRow = document.createElement('tr');
+            noResultsRow.id = 'matrixNoResults';
+            noResultsRow.innerHTML = '<td colspan="100" class="text-center text-muted py-3"><i class="bi bi-search me-2"></i>Ingen produkter matcher søgningen</td>';
+            tableBody.appendChild(noResultsRow);
+        }
+    } else {
+        const noResultsRow = document.getElementById('matrixNoResults');
+        if (noResultsRow) {
+            noResultsRow.remove();
+        }
+    }
+}
+
+/**
+ * Clear matrix search filter
+ */
+function clearMatrixSearch() {
+    const searchInput = document.getElementById('matrixSearchInput');
+    searchInput.value = '';
+    filterMatrixProducts();
+    searchInput.focus();
+}
+
 // Auto-load matrix when subscriptions tab is shown
 document.addEventListener('DOMContentLoaded', () => {
     const subscriptionsTab = document.querySelector('a[href="#subscriptions"]');

app/services/economic_service.py

@@ -9,6 +9,7 @@ Send invoices and supplier invoices (kassekladde) to e-conomic accounting system
 import logging
 import aiohttp
 import json
+from datetime import datetime, timedelta
 from typing import Dict, Optional, List
 from app.core.config import settings
 
@@ -439,16 +440,20 @@ class EconomicService:
     
     async def get_customer_invoices(self, customer_number: int, include_lines: bool = True) -> List[Dict]:
         """
-        Get customer invoices (sales invoices) from e-conomic
+        Get customer invoices (sales invoices) from e-conomic (last 1 year only)
         
         Args:
             customer_number: e-conomic customer number
             include_lines: Whether to include invoice lines (adds more API calls but gets full data)
             
         Returns:
-            List of invoice records with lines
+            List of invoice records with lines from the last year
         """
         try:
+            # Calculate date 1 year ago
+            one_year_ago = (datetime.now() - timedelta(days=365)).strftime('%Y-%m-%d')
+            logger.info(f"📅 Fetching invoices from {one_year_ago} onwards (1 year filter)")
+            
             async with aiohttp.ClientSession() as session:
                 # Try multiple endpoints to find invoices
                 # Include drafts, paid, unpaid, booked, sent, archived, etc.
@@ -475,7 +480,11 @@ class EconomicService:
                         while True:
                             async with session.get(
                                 endpoint,
-                                params={"pagesize": 1000, "skippages": page},
+                                params={
+                                    "pagesize": 1000, 
+                                    "skippages": page,
+                                    "filter": f"date$gte:{one_year_ago}"
+                                },
                                 headers=self._get_headers()
                             ) as response:
                                 logger.info(f"🔍 [API] Response status from {endpoint} (page {page}): {response.status}")