add fcs shipment service

lib/domain/entities/fcs_shipment.dart

@@ -1,4 +1,5 @@
 class FcsShipment {
+  String id;
   DateTime shipDate;
   String shipmentNumber;
   DateTime cutoffDate;
@@ -11,7 +12,8 @@ class FcsShipment {
   String status;
   String remark;
   FcsShipment(
-      {this.shipDate,
+      {this.id,
+      this.shipDate,
       this.shipmentNumber,
       this.cutoffDate,
       this.shipType,
@@ -22,4 +24,21 @@ class FcsShipment {
       this.port,
       this.destination,
       this.remark});
+
+  Map<String, dynamic> toMap() {
+    return {
+      "id": id,
+      'shipment_date': shipDate?.toUtc()?.toIso8601String(),
+      'shipment_number': shipmentNumber,
+      'cutoff_date': cutoffDate?.toUtc()?.toIso8601String(),
+      'shipment_type': shipType,
+      'arrival_date': arrivalDate?.toUtc()?.toIso8601String(),
+      'departure_date': departureDate?.toUtc()?.toIso8601String(),
+      'consignee': consignee,
+      'port': port,
+      'destination': destination,
+      'status': status,
+      'remark': remark,
+    };
+  }
 }