MeTubeStatistics-FinalExam-Dictionary

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


public class Program
{
	public static void Main()
	{
		Dictionary<string,int> videoViews = new Dictionary<string,int>();
		Dictionary<string,int> videoLikes = new Dictionary<string,int>();

		while (true)
		{
			string command = Console.ReadLine();

			if (command == "stats time")
			{
				break;
			}

			if (command.Contains(':'))
			{
				string[] tokens = command.Split(':');
				string action = tokens[0];
				string songName = tokens[1];

				if (action == "like")
				{
					if (videoLikes.ContainsKey(songName))
					{
						videoLikes[songName]+=1;
					}

				}
				else
				{
					if (videoLikes.ContainsKey(songName))
					{
						videoLikes[songName]-=1;
					}
				}
			}
			else
			{
				string[] tokens = command.Split('-');

				string songName = tokens[0];
				int views = int.Parse(tokens[1]);

				if (!videoViews.ContainsKey(songName))
				{
					videoViews.Add(songName,views);
					videoLikes.Add(songName,0);
				}
				else
				{
					videoViews[songName]+=views;
				}
			}
		}

		string criterion = Console.ReadLine();

		if (criterion == "by views")
		{
			foreach (var kvp in videoViews.OrderByDescending(x=>x.Value))
			{
				string name = kvp.Key;
				int views = kvp.Value;
				int likes = videoLikes[name];

				Console.WriteLine("{0} - {1} views - {2} likes",name,views,likes);
			}
		}
		else
		{
			foreach (var kvp in videoLikes.OrderByDescending(x=>x.Value))
			{
				string name = kvp.Key;
				int likes = kvp.Value;
				int views = videoViews[name];

				Console.WriteLine("{0} - {1} views - {2} likes",name,views,likes);
			}
		}
	}
}