fcs/lib/model_fcs/message_model.dart

import 'dart:async';

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:fcs/model/base_model.dart';
import 'package:fcs/vo/message.dart';
import 'package:fcs/vo/package.dart';
import 'package:logging/logging.dart';

class MessageModel extends BaseModel {
  final log = Logger('MessageModel');

  StreamSubscription<QuerySnapshot> listener;

  List<Message> messages = [
    Message(
      senderName: "FCS System",
      receiverName: "Online Buyer",
      date: DateTime(2020, 6, 1, 1, 1, 1),
      message:
          "Hi Online Buyer, we received your goods. Please see in 'A202-3 #1'",
    ),
    Message(
        senderName: "FCS System",
        receiverName: "Online Buyer",
        date: DateTime(2020, 6, 1, 1, 5, 1),
        message: "Thank you. Will see the photos and check.",
        isMe: false),
    Message(
      senderName: "FCS System",
      receiverName: "Online Buyer",
      date: DateTime(2020, 6, 1, 2, 1, 1),
      message:
          "Hi Online Buyer, we successfully processed your goods and ready for payment. Please see in 'INV202005010387'",
    ),
    Message(
      senderName: "FCS System",
      receiverName: "Online Buyer",
      date: DateTime(2020, 6, 1, 2, 10, 1),
      message:
          "Hi Online Buyer, we have confirmed your payment and ready to ship your packages.",
    ),
    Message(
      senderName: "FCS System",
      receiverName: "Shipper",
      date: DateTime(2020, 6, 1, 1, 1, 1),
      message:
          "Hi Online Buyer, we received your goods. Please see in 'A202-3 #1'",
    ),
    Message(
      senderName: "FCS System",
      receiverName: "Shipper",
      date: DateTime(2020, 6, 1, 2, 1, 1),
      message:
          "Hi Online Buyer, we successfully processed your goods and ready for payment. Please see in 'INV202005010387'",
    ),
    Message(
      senderName: "FCS System",
      receiverName: "Shipper",
      date: DateTime(2020, 6, 1, 2, 10, 1),
      message:
          "Hi Online Buyer, we have confirmed your payment and ready to ship your packages.",
    ),
  ];

  List<Message> get lastMessage {
    return [messages[2], messages[5]];
  }

  List<Message> getMessage(String receiver) {
    return messages.where((e) => e.receiverName == receiver).toList();
  }

  // List<Package> get completed {
  //   return packages.where((e) => e.status == "Delivered").toList()
  //     ..sort((e1, e2) {
  //       return e2.packageNumber.compareTo(e1.packageNumber);
  //     });
  // }

  // List<Package> get upcoming {
  //   return packages
  //       .where((e) =>
  //           e.status == "Processing" ||
  //           e.status == "Received" ||
  //           e.status == "Ready to ship")
  //       .toList()
  //         ..sort((e1, e2) {
  //           return e2.packageNumber.compareTo(e1.packageNumber);
  //         });
  // }

  void initUser(user) {
    super.initUser(user);
  }

  @override
  logout() async {
    if (listener != null) await listener.cancel();
    messages = [];
  }
}