03. problem Final exam dec 13 2020

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;

class Program
{

    static void Main()
    {

        int macCapacity = int.Parse(Console.ReadLine());

        Dictionary<string, Dictionary<string, int>> users = new Dictionary<string, Dictionary<string, int>>();

        string command = Console.ReadLine();

        while (command != "Statistics")
        {
            string[] line = command.Split("=");
            string cmd = line[0];

            if (cmd == "Add")
            {
                string userName = line[1];
                int sendMessages = int.Parse(line[2]);
                int receivedMessages = int.Parse(line[3]);
                if (!users.ContainsKey(userName))
                {
                    users.Add(userName, new Dictionary<string, int>()
                    {
                        {"send", sendMessages },
                        {"received", receivedMessages }
                    });
                }
            }

            else if (cmd == "Message")
            {
                string sender = line[1];
                string receiver = line[2];

                if (users.ContainsKey(sender) && users.ContainsKey(receiver))
                {
                    users[sender]["send"] += 1;
                    users[receiver]["received"] += 1;


                    if (users[sender]["send"] + users[sender]["received"] >= macCapacity)
                    {
                        Console.WriteLine($"{sender} reached the capacity!");
                        users.Remove(sender);

                    }
                    if (users[receiver]["received"] + users[receiver]["send"] >= macCapacity)
                    {
                        Console.WriteLine($"{receiver} reached the capacity!");
                        users.Remove(receiver);
                    }
                }
            }

            else if (cmd == "Empty")
            {
                if (line[1] == "All")
                {
                    foreach (var item in users)
                    {
                        users.Remove(item.Key);
                    }
                }
                else
                {
                    string user = line[1];

                    users.Remove(user);
                }
            }




            command = Console.ReadLine();
        }

        foreach (var item in users)
        {
            if (item.Value["send"] == 0 && item.Value["received"] == 0)
            {
                users.Remove(item.Key);
            }
        }

        users = users
            .OrderByDescending(s => s.Value["received"])
            .ThenBy(s => s.Key)
            .ToDictionary(s => s.Key, x => x.Value);

        Console.WriteLine($"Users count: {users.Count}");

        foreach (var item in users)
        {
            int totalPoints = item.Value["send"] + item.Value["received"];
            string userName = item.Key;

            Console.WriteLine($"{userName} - {totalPoints}");
        }
    }
}