add rate service

lib/domain/entities/shipment.dart

@@ -0,0 +1,54 @@
+import 'cargo_type.dart';
+
+class Shipment {
+  String id;
+  String userName;
+  String phoneNumber;
+  String fromTime;
+  String toTime;
+  int numberOfPackage;
+  int weight;
+  int handlingFee;
+  String address;
+  String status;
+  DateTime date;
+  List<CargoType> cargoTypes;
+  bool isCourier;
+  int radioIndex;
+
+  Shipment(
+      {this.id,
+      this.userName,
+      this.phoneNumber,
+      this.fromTime,
+      this.toTime,
+      this.numberOfPackage,
+      this.weight,
+      this.handlingFee,
+      this.address,
+      this.status,
+      this.date,
+      this.cargoTypes,
+      this.isCourier = false,
+      this.radioIndex = 1});
+
+  int get last => DateTime.now().difference(date).inDays;
+
+  factory Shipment.fromMap(Map<String, dynamic> map, String id) {
+    return Shipment(
+        id: id,
+        userName: map['user_name'],
+        phoneNumber: map['phone_number'],
+        fromTime: map['from_time'],
+        toTime: map['to_time'],
+        numberOfPackage: map['number_of_package'],
+        weight: map['weight'],
+        address: map['address'],
+        status: map['status']);
+  }
+
+  @override
+  String toString() {
+    return 'PickUp{id:$id, userName:$userName,phoneNumber:$phoneNumber,fromTime:$fromTime,toTime:$toTime,numberOfPackage:$numberOfPackage,weight:$weight,status:$status}';
+  }
+}