reverse geocoding for contributions

public/api/contributions.php

@@ -205,7 +205,7 @@ function handle_update($input) {
     }
 
     // Builds dynamic SQL Query to only update sent Fields
-    $updatable_fields = ['category', 'title', 'description', 'status'];
+    $updatable_fields = ['category', 'title', 'description', 'status', 'address'];
     $set_clauses = [];
     $params = [':id' => $contribution_id];
 

public/js/app.js

@@ -448,6 +448,14 @@ function submitCreate() {
             return;
         }
 
+    // Triggers Reverse Geocoding in Background
+        if (response.contribution_id && drawnGeometry) {
+            const coords = drawnGeomType === 'point' ? drawnGeometry.coordinates :
+                           drawnGeomType === 'line' ? drawnGeometry.coordinates[0] :
+                           drawnGeometry.coordinates[0][0];
+            reverseGeocode(response.contribution_id, coords[1], coords[0]);
+        }
+
         Swal.fire('Eingereicht!', 'Ihr Beitrag wurde erfolgreich eingereicht und wird nach Prüfung durch das Moderationsteam veröffentlicht.', 'success');
         closeCreateModal();
         loadContributions();
@@ -917,6 +925,31 @@ function categoryIcon(cat) {
     return '<i class="fa-solid ' + cat.faIcon + '" style="color:' + cat.color + ';"></i>';
 }
 
+// Reverse Geocodes Coordinates and saves Address to Contribution via API
+function reverseGeocode(contributionId, lat, lng) {
+    fetch('https://nominatim.openstreetmap.org/reverse?format=json&lat=' + lat + '&lon=' + lng + '&zoom=18&addressdetails=1', {
+        headers: { 'Accept-Language': 'de' }
+    })
+    .then(function (r) { return r.json(); })
+    .then(function (data) {
+        if (data.display_name) {
+            const addr = data.address || {};
+            const parts = [];
+            if (addr.road) parts.push(addr.road + (addr.house_number ? ' ' + addr.house_number : ''));
+            if (addr.city || addr.town || addr.village) parts.push(addr.city || addr.town || addr.village);
+            const shortAddress = parts.length > 0 ? parts.join(', ') : data.display_name.split(',').slice(0, 2).join(',');
+
+            // Saves Address to Database via API
+            apiCall({
+                action: 'update',
+                contribution_id: contributionId,
+                address: shortAddress
+            }, function () {});
+        }
+    })
+    .catch(function () {});
+}
+
 
 // =====================================================================
 // Block 16: Application Startup