Envelope/mobile/lib/models/conversation_users.dart

import '/models/conversations.dart';
import '/utils/storage/database.dart';

Future<ConversationUser> getConversationUser(Conversation conversation, String userId) async {
    final db = await getDatabaseConnection();

    final List<Map<String, dynamic>> maps = await db.query(
        'conversation_users',
        where: 'conversation_id = ? AND user_id = ?',
        whereArgs: [conversation.id, userId],
    );

    if (maps.length != 1) {
      throw ArgumentError('Invalid conversation_id or username');
    }

    return ConversationUser(
        id: maps[0]['id'],
        userId: maps[0]['user_id'],
        conversationId: maps[0]['conversation_id'],
        username: maps[0]['username'],
        associationKey: maps[0]['association_key'],
        admin: maps[0]['admin'] == 1,
    );

}

// A method that retrieves all the dogs from the dogs table.
Future<List<ConversationUser>> getConversationUsers(Conversation conversation) async {
    final db = await getDatabaseConnection();

    final List<Map<String, dynamic>> maps = await db.query(
        'conversation_users',
        where: 'conversation_id = ?',
        whereArgs: [conversation.id],
        orderBy: 'admin',
    );

    return List.generate(maps.length, (i) {
        return ConversationUser(
                id: maps[i]['id'],
                userId: maps[i]['user_id'],
                conversationId: maps[i]['conversation_id'],
                username: maps[i]['username'],
                associationKey: maps[i]['association_key'],
                admin: maps[i]['admin'] == 1,
        );
    });
}

class ConversationUser{
    String id;
    String userId;
    String conversationId;
    String username;
    String associationKey;
    bool admin;
    ConversationUser({
      required this.id,
      required this.userId,
      required this.conversationId,
      required this.username,
      required this.associationKey,
      required this.admin,
    });

    factory ConversationUser.fromJson(Map<String, dynamic> json, String conversationId) {
      return ConversationUser(
          id: json['id'],
          userId: json['user_id'],
          conversationId: conversationId,
          username: json['username'],
          associationKey: json['association_key'],
          admin: json['admin'] == 'true',
      );
    }

    Map<String, dynamic> toJson() {
      return {
        'id': id,
        'user_id': userId,
        'username': username,
        'association_key': associationKey,
        'admin': admin ? 'true' : 'false',
      };
    }

    Map<String, dynamic> toMap() {
      return {
        'id': id,
        'user_id': userId,
        'conversation_id': conversationId,
        'username': username,
        'association_key': associationKey,
        'admin': admin ? 1 : 0,
      };
    }
}