comunicmobile/lib/models/conversation_message.dart

import 'package:comunic/helpers/database/database_contract.dart';
import 'package:comunic/models/cache_model.dart';
import 'package:comunic/models/displayed_content.dart';
import 'package:comunic/utils/account_utils.dart' as account;
import 'package:meta/meta.dart';

/// Single conversation message
///
/// @author Pierre HUBERT

class ConversationMessage extends CacheModel implements Comparable {
  final int id;
  final int conversationID;
  final int userID;
  final int timeInsert;
  final DisplayedString message;
  final String imageURL;

  const ConversationMessage({
    @required this.id,
    @required this.conversationID,
    @required this.userID,
    @required this.timeInsert,
    @required this.message,
    @required this.imageURL,
  })  : assert(id != null),
        assert(userID != null),
        assert(timeInsert != null),
        assert(message != null),
        super(id: id);

  DateTime get date => DateTime.fromMillisecondsSinceEpoch(timeInsert * 1000);

  bool get hasMessage => !message.isNull && message.length > 0;

  bool get hasImage => imageURL != null && imageURL != "null";

  bool get isOwner => account.userID() == userID;

  @override
  int compareTo(other) {
    return id.compareTo(other.id);
  }

  @override
  Map<String, dynamic> toMap() {
    return {
      ConversationsMessagesTableContract.C_ID: id,
      ConversationsMessagesTableContract.C_CONVERSATION_ID: conversationID,
      ConversationsMessagesTableContract.C_USER_ID: userID,
      ConversationsMessagesTableContract.C_TIME_INSERT: timeInsert,
      ConversationsMessagesTableContract.C_MESSAGE: message.content,
      ConversationsMessagesTableContract.C_IMAGE_URL: imageURL
    };
  }

  ConversationMessage.fromMap(Map<String, dynamic> map)
      : id = map[ConversationsMessagesTableContract.C_ID],
        conversationID =
            map[ConversationsMessagesTableContract.C_CONVERSATION_ID],
        userID = map[ConversationsMessagesTableContract.C_USER_ID],
        timeInsert = map[ConversationsMessagesTableContract.C_TIME_INSERT],
        message = DisplayedString(map[ConversationsMessagesTableContract.C_MESSAGE]),
        imageURL = map[ConversationsMessagesTableContract.C_IMAGE_URL],
        super.fromMap(map);
}