using System;
using System.Collections.Generic;
using System.Linq;

class Kata {
    public static string Main(string language) {
      var salutations = new DeveloperGreeting().GreetMyDeveloper(language);
      Console.Write(salutations);
      return salutations;
    }
}

//Returns the developer greeting message.
class DeveloperGreeting {
    public string GreetMyDeveloper(string language){
      return new GreetingRepository().GetDeveloperGreetings(language).message;
    }
}

//Get greeting data from either a collection or database store.
class GreetingRepository {
   public List<Greeting> greetings;
   
   public GreetingRepository() {
     greetings = new List<Greeting>(){
       new Greeting(){language = "C#", message = "Hello my fellow C# developers, work hard."},
       new Greeting() {language = "Java", message = "Hello my fellow Java developers, work hard."}
     };
   }
   public Greeting GetDeveloperGreetings(string language){
     var g = greetings.Where(x => x.language.Equals(language)).ToList();
     return new Greeting(){ language = g[0].language, message = g[0].message};
   }
}

//Greeting Model class
class Greeting{
  public string language {get; set;}
  public string message {get; set;}
}