using System;

using System.Globalization;

using System.Collections.Generic;

using System.Linq;

using System.Reflection;

​

public class Test

{

​

    public static void Main(string[] args)

    {

        try

        {

            CultureInfo provider = CultureInfo.InvariantCulture;

            string instr;

            Console.WriteLine("Enter the start date");

            instr = Console.ReadLine();

            var startDate = DateTime.MinValue;

            DateTime.TryParseExact(instr, "yyyy/MM/dd", provider, DateTimeStyles.None, out startDate);

            Console.WriteLine("Enter the end date");

            instr = Console.ReadLine();

            var endDate = DateTime.MinValue;

            DateTime.TryParseExact(instr, "yyyy/MM/dd", provider, DateTimeStyles.None, out endDate);

            var queryFilter = "{_id:{$gte: ObjectId('" + dateConverter(startDate) + "0000000000000000'), $lte: ObjectId('" + dateConverter(endDate) + "ffffffffffffffff')}}";

            var expstring = " --db yourDatabaseName --collection yourCollectionName --type json --query \"" + queryFilter + "\" --out yourFilePath --jsonArray";

            Console.WriteLine(expstring);

        }

        catch (Exception ex)

        {

            Console.WriteLine("[ERROR]: " + ex.Message);

        }

    }

    public static string dateConverter(DateTime dt)

    {

        long decimalNumber = (long)(dt.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;

        return (Convert.ToString(decimalNumber, 16));

    }

​

    interface ICombatBehaviour

    {

        string Name { get; }

    }

    class CombatBehaviour : ICombatBehaviour

    {

        public string Name 

        {

            get {

                return "Foo";

            }

        }

    }

​

    static ICombatBehaviour combat;

​

    private static string[] FindAllCombatOptions(out List<Type> existingTypes)

    {

        List<string> options = new List<string>();

        existingTypes = new List<Type>();

        var combatBehaviours = Assembly.GetAssembly(typeof(ICombatBehaviour)).GetTypes()

            .Where(myType => myType.IsClass && !myType.IsAbstract && typeof(ICombatBehaviour).IsAssignableFrom(myType));

        foreach (var behaviour in combatBehaviours)

        {

            existingTypes.Add(behaviour);

            options.Add(behaviour.Name);

        }

        return options.ToArray();

    }

​

    private static void UpdateType(List<Type> types)

    {

        combat = Activator.CreateInstance(types[0]) as ICombatBehaviour;

    }

}