update package detal list and update cargo type input in carton section

lib/pages/carton/model/package_selection_model.dart

@@ -5,59 +5,68 @@ import 'package:logging/logging.dart';
 
 import '../../../constants.dart';
 import '../../../domain/entities/package.dart';
+import '../../../pagination/paginator_listener.dart';
 import '../../main/model/base_model.dart';
 
 class PackageSelectionModel extends BaseModel {
   final log = Logger("PackageSelectionModel");
-  String query = "";
-  List<Package> packages = [];
-  List<Package> selectedPackages = [];
+  PaginatorListener<Package>? getPackages;
 
+  List<Package> packages = [];
   bool isLoading = false;
   DocumentSnapshot? _lastDocument;
   bool ended = false;
 
-  Timer? t;
-  search(String term,
-      {bool imm = false,
-      required String shipmentId,
-      required String senderId,
-      required String consigneeId}) async {
-    query = term;
+  @override
+  logout() async {
     packages.clear();
-    _lastDocument = null;
-    ended = false;
-    t?.cancel();
-    t = Timer(Duration(milliseconds: imm ? 0 : 800), () async {
-      await refresh(
-          term: term,
-          shipmentId: shipmentId,
-          consigneeId: consigneeId,
-          senderId: senderId);
-    });
+    getPackages?.close();
+  }
+
+  loadPackages(
+      {required String senderId,
+      required String consigneeId,
+      required String shipmentId}) {
+    if (user == null) return;
+
+    String path = "/$packages_collection";
+    Query col = FirebaseFirestore.instance
+        .collection(path)
+        .where("sender_id", isEqualTo: senderId)
+        .where("user_id", isEqualTo: consigneeId)
+        .where("fcs_shipment_id", isEqualTo: shipmentId);
+    Query pageQuery = FirebaseFirestore.instance
+        .collection(path)
+        .where("sender_id", isEqualTo: senderId)
+        .where("user_id", isEqualTo: consigneeId)
+        .where("fcs_shipment_id", isEqualTo: shipmentId);
+
+    pageQuery = pageQuery.orderBy("created_date", descending: true);
+    getPackages?.close();
+    getPackages = PaginatorListener<Package>(
+        col, pageQuery, (data, id) => Package.fromMap(data, id),
+        rowPerLoad: 30);
   }
 
   Future<void> refresh(
       {required String shipmentId,
       required String senderId,
-      required String consigneeId,
-      String term = ""}) async {
+      required String consigneeId}) async {
     packages.clear();
     _lastDocument = null;
     ended = false;
     await loadMoreData(
-        shipmentId: shipmentId,
-        senderId: senderId,
-        consigneeId: consigneeId,
-        term: term);
+      shipmentId: shipmentId,
+      senderId: senderId,
+      consigneeId: consigneeId,
+    );
     notifyListeners();
   }
 
   Future<void> loadMoreData(
       {required String shipmentId,
       required String senderId,
-      required String consigneeId,
-      String term = ""}) async {
+      required String consigneeId}) async {
     int rowPerPage = 20;
 
     try {
@@ -69,12 +78,9 @@ class PackageSelectionModel extends BaseModel {
               whereIn: [package_processed_status, package_packed_status])
           .where("sender_id", isEqualTo: senderId)
           .where("user_id", isEqualTo: consigneeId)
+          .where("fcs_shipment_id", isEqualTo: shipmentId)
           .where("is_deleted", isEqualTo: false);
 
-      if (term != "") {
-        query = query.where("tracking_id", isEqualTo: term);
-      }
-
       query = query.orderBy("created_date", descending: true);
 
       if (_lastDocument != null) {
@@ -92,10 +98,6 @@ class PackageSelectionModel extends BaseModel {
         return p;
       }).toList();
 
-      for (var p in list) {
-        selectedPackages.contains(p) ? p.isChecked = true : p.isChecked = false;
-      }
-
       packages.addAll(list);
       if (list.length < rowPerPage) ended = true;
       notifyListeners();
@@ -106,22 +108,8 @@ class PackageSelectionModel extends BaseModel {
     }
   }
 
-  selectPackage(Package a) {
-    if (a.isChecked) {
-      selectedPackages.add(a);
-    } else {
-      selectedPackages.remove(a);
-    }
-  }
-
-  addSelectedPackage(List<Package> list) {
-    selectedPackages = list;
-  }
-
   clearSelection() {
-    selectedPackages.clear();
     packages.clear();
-    query = "";
   }
 
   Future<List<Package>> getPackagesBySenderAndConsigneeId(
@@ -174,4 +162,21 @@ class PackageSelectionModel extends BaseModel {
     }
     return list;
   }
+
+  Future<int?> getPackageCount(
+      {required String senderId,
+      required String consigneeId,
+      required String shipmentId}) async {
+    String path = "/$packages_collection";
+
+    AggregateQuerySnapshot query = await FirebaseFirestore.instance
+        .collection(path)
+        .where("sender_id", isEqualTo: senderId)
+        .where("user_id", isEqualTo: consigneeId)
+        .where("fcs_shipment_id", isEqualTo: shipmentId)
+        .count()
+        .get();
+
+    return query.count;
+  }
 }