Guild (C# Advanced Exam - 22 February 2020)

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

namespace Guild
{
    public class StartUp
    {
        public static void Main(string[] args)
        {
            Guild guild = new Guild("Weekend Raiders", 20);
            Player player = new Player("Mark", "Rogue");
            Console.WriteLine(player);
            guild.AddPlayer(player);
            Console.WriteLine(guild.Count);
            Console.WriteLine(guild.RemovePlayer("Gosho"));
            Player firstPlayer = new Player("Pep", "Warrior");
            Player secondPlayer = new Player("Lizzy", "Priest");
            Player thirdPlayer = new Player("Mike", "Rogue");
            Player fourthPlayer = new Player("Marlin", "Mage");
            secondPlayer.Description = "Best healer EU";
            guild.AddPlayer(firstPlayer);
            guild.AddPlayer(secondPlayer);
            guild.AddPlayer(thirdPlayer);
            guild.AddPlayer(fourthPlayer);
            guild.PromotePlayer("Lizzy");
            Console.WriteLine(guild.RemovePlayer("Pep"));
            Player[] kickedPlayers = guild.KickPlayersByClass("Rogue");
            Console.WriteLine(string.Join(", ", kickedPlayers.Select(p => p.Name)));
            Console.WriteLine(guild.Report());
        }
    }
    class Player
    {
        public Player(string name, string classText)
        {
            this.Name = name;
            this.Class = classText;
        }
        public string Name { get; set; }
        public string Class { get; set; }
        public string Rank { get; set; } = "Trial";
        public string Description { get; set; } = "n/a";

        public override string ToString()
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine($"Player {this.Name}: {this.Class}");
            sb.AppendLine($"Rank: {Rank}");
            sb.AppendLine($"Description: {Description}");

            return sb.ToString().TrimEnd();
        }
    }
    class Guild
    {
        private List<Player> roster;

        public string Name { get; set; }
        public int Capacity { get; set; }

        public Guild(string name, int capacity)
        {
            this.Name = name;
            this.Capacity = capacity;
            this.roster = new List<Player>();
        }
        public void AddPlayer(Player player)
        {
            if (roster.Count < this.Capacity && roster.All(x => x.Name != player.Name))
            {
                roster.Add(player);
            }
        }
        public int Count
        {
            get { return this.roster.Count; }
        }

        public bool RemovePlayer(string name)
        {
            if (roster.Any(x => x.Name == name))
            {
                Player playerToRemove = roster.Find(x => x.Name == name);
                roster.Remove(playerToRemove);
                return true;
            }
            return false;
        }
        public void PromotePlayer(string foundedName)
        {
            if (roster.Any(x => x.Name == foundedName))
            {
                Player myPromotedPlayer = roster.FirstOrDefault(x => x.Name == foundedName);
                myPromotedPlayer.Rank = "Member";
            }
        }
        public void DemotePlayer(string name)
        {
            if (roster.Any(x => x.Name == name))
            {
                Player myDemotedPlayer = roster.FirstOrDefault(x => x.Name == name);
                if (myDemotedPlayer != null)
                {
                    myDemotedPlayer.Rank = "Trial";
                }
            }
        }
        public Player[] KickPlayersByClass(string class_)
        {
            var playersToRemove = roster.Where(x => x.Class == class_).ToArray();
            roster.RemoveAll(x => x.Class == class_);

            return playersToRemove;
        }

        public string Report()
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine($"Players in the guild: {this.Name}");
            foreach (Player player in this.roster)
            {
                sb.AppendLine($"Player {player.Name}: {player.Class}");
                sb.AppendLine($"Rank: {player.Rank}");
                sb.AppendLine($"Description: {player.Description}");
            }
            return sb.ToString().TrimEnd();
        }
    }
}