comunicmobile/lib/models/conversation.dart

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

/// Conversation model
///
/// @author Pierre HUBERT

class Conversation extends CacheModel implements Comparable {
  final int ownerID;
  final int lastActive;
  final String name;
  final bool following;
  final bool sawLastMessage;
  final List<int> members;

  const Conversation({
    @required int id,
    @required this.ownerID,
    @required this.lastActive,
    @required this.name,
    @required this.following,
    @required this.sawLastMessage,
    @required this.members,
  })  : assert(id != null),
        assert(ownerID != null),
        assert(lastActive != null),
        assert(following != null),
        assert(sawLastMessage != null),
        assert(members != null),
        super(id: id);

  /// Check out whether a conversation has a fixed name or not
  bool get hasName => this.name != null;

  /// Check out whether current user of the application is the owner of it or
  /// not
  bool get isOwner => this.ownerID == userID();

  Conversation.fromMap(Map<String, dynamic> map)
      : ownerID = map[ConversationTableContract.C_OWNER_ID],
        lastActive = map[ConversationTableContract.C_LAST_ACTIVE],
        name = map[ConversationTableContract.C_NAME],
        following = map[ConversationTableContract.C_FOLLOWING] == 1,
        sawLastMessage = map[ConversationTableContract.C_SAW_LAST_MESSAGE] == 1,
        members = listToIntList(
            map[ConversationTableContract.C_MEMBERS].split(",")),
        super.fromMap(map);

  @override
  Map<String, dynamic> toMap() {
    return {
      ConversationTableContract.C_ID: id,
      ConversationTableContract.C_OWNER_ID: ownerID,
      ConversationTableContract.C_LAST_ACTIVE: lastActive,
      ConversationTableContract.C_NAME: name,
      ConversationTableContract.C_FOLLOWING: following ? 1 : 0,
      ConversationTableContract.C_SAW_LAST_MESSAGE: sawLastMessage ? 1 : 0,
      ConversationTableContract.C_MEMBERS: members.join(","),
    };
  }

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