SUBD_PIbd-21_Balberova_D.N./BeautySaloon/BeautySaloonNoSQLDatabaseImplement/NewdbContext.cs

using MongoDB.Driver;
using System.Configuration;

namespace BeautySaloonNoSQLDatabaseImplement
{
    public class NewdbContext
    {
        private static NewdbContext? _instance;
        public IMongoCollection<Client> Clients { get; set; }
        public IMongoCollection<Order> Orders { get; set; }
        public IMongoCollection<Employee> Employees { get; set; }
        public IMongoCollection<Service> Services { get; set; }
        public IMongoCollection<Position> Positions { get; set; }
        private NewdbContext()
        {
            var connectionString = ConfigurationManager.ConnectionStrings["DatabaseConnection"].ConnectionString;
            var databaseName = MongoUrl.Create(connectionString).DatabaseName;
            MongoClient client = new MongoClient(connectionString);
            var database = client.GetDatabase(databaseName);

            Clients = database.GetCollection<Client>("clients");
            Orders = database.GetCollection<Order>("orders");
            Employees = database.GetCollection<Employee>("employees");
            Services = database.GetCollection<Service>("services");
            Positions = database.GetCollection<Position>("positions");
        }
        public static NewdbContext GetInstance()
        {
            if (_instance == null)
            {
                _instance = new NewdbContext();
            }
            return _instance;
        }
    }
}