using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        // a customer to compare to

        Dictionary<string, sStatus> one = new(){

            {"mailchimp", sStatus.Subscribed},

            {"simpleTexting", sStatus.Unsubscribed}

        };

        // one and another are exactly the same

        Dictionary<string, sStatus> another = new(){

            {"mailchimp", sStatus.Subscribed},

            {"simpleTexting", sStatus.Unsubscribed}

        };

        // one & two are the same, but order is different.

        Dictionary<string, sStatus> two = new(){

            {"simpleTexting", sStatus.Unsubscribed},

            {"mailchimp", sStatus.Subscribed}

        };

        // one and three are different, because three adds a service

        Dictionary<string, sStatus> three = new(){

            {"simpleTexting", sStatus.Unsubscribed},

            {"mailchimp", sStatus.Subscribed},

            {"magento", sStatus.Cleaned}

        };

        // one and four are different because four is missing a service

        Dictionary<string, sStatus> four = new(){

            {"simpleTexting", sStatus.Unsubscribed}

        };

        // one and five are different because the keys are the same (and order) but the values are different

        Dictionary<string, sStatus> five = new(){

            {"mailchimp", sStatus.Unsubscribed},

            {"simpleTexting", sStatus.Unsubscribed}

        };

        // one and six are different because six is empty

        Dictionary<string, sStatus> six = new();

        // six and seven are the same because both are empty

        Dictionary<string, sStatus> seven = new();

        Console.WriteLine("one == one ? true/" + CompareDictionaries(one, one));

        Console.WriteLine("one == another ? true/" + CompareDictionaries(one, another));

        Console.WriteLine("one == two ? true/" + CompareDictionaries(one, two));

        Console.WriteLine("one == three ? false/" + CompareDictionaries(one, three));

        Console.WriteLine("one == four ? false/" + CompareDictionaries(one, four));

        Console.WriteLine("one == five ? false/" + CompareDictionaries(one, five));

        Console.WriteLine("one == six ? false/" + CompareDictionaries(one, six));

        Console.WriteLine("six == seven ? true/" + CompareDictionaries(six, seven));

    }

    public static bool CompareDictionaries(Dictionary<string, sStatus> d1, Dictionary<string, sStatus> d2)

    {

        if (d1 == d2)

            return true;

        // KV is KeyValue pair

        /*

        // in this code x.Value can be nullable

        bool areEqual = d1.Count == d2.Count && d1.All(

             (d1KV) => d2.TryGetValue(d1KV.Key, out var d2Value) && (

                  d1KV.Value == d2Value ||

                  d1KV.Value?.Equals(d2Value) == true)

        );

        */

        // in this code x.Value can not be null

        bool areEqual = d1.Count == d2.Count && d1.All(

             (d1KV) => d2.TryGetValue(d1KV.Key, out var d2Value) && (

                  d1KV.Value == d2Value)

        );

        return areEqual;

    }

}

​

​

public enum sStatus

{

    Subscribed,

    Unsubscribed,

    Cleaned

}