channel.dart

class Channel {
  final int id;

  bool isStarred;
  bool isJoined;
  bool isEncrypted;

  Channel.fromJson(Map<String, dynamic> json)
      : id = json['channel_id'],
        isStarred = json['is_star'],
        isJoined = json['is_joined'],
        isEncrypted = json['encrypted'];
}

class Conversation extends Channel {
  List<int> members;

  Conversation.fromJson(Map<String, dynamic> json)
      : members = json['members'].cast<int>(),
        super.fromJson(json);
}

class NamedChannel extends Channel {
  String name;
  String purpose;

  NamedChannel.fromJson(Map<String, dynamic> json)
      : name = json['name'],
        purpose = json['purpose'],
        super.fromJson(json);
}

class PublicChannel extends NamedChannel {
  PublicChannel.fromJson(Map<String, dynamic> json) : super.fromJson(json);
}

class PrivateChannel extends NamedChannel {
  PrivateChannel.fromJson(Map<String, dynamic> json) : super.fromJson(json);
}

class ChatBotChannel extends NamedChannel {
  ChatBotChannel.fromJson(Map<String, dynamic> json) : super.fromJson(json);
}

// make a factory class?
Channel createChannelFromJSONObject(dynamic json) {
  switch (json['type']) {
    case 'public':
      return PublicChannel.fromJson(json);
    case 'private':
      return PublicChannel.fromJson(json);
    case 'anonymous':
      return Conversation.fromJson(json);
    case 'chatbot':
      return ChatBotChannel.fromJson(json);
    default:
      return Channel.fromJson(json);
  }
}