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

namespace Guild
{
    public class Guild
    {
        private List<Player> roster;

        public Guild(string name, int capacity)
        {
            Name = name;
            Capacity = capacity;
            roster = new List<Player>();
        }

        public string Name { get; set; }
        public int Capacity { get; set; }
        public int Count => roster.Count;

        public void AddPlayer(Player player)
        {
            if (roster.Count <= Capacity)
            {
                roster.Add(player);
            }
        }
        public bool RemovePlayer(string name)
        {
            var findPlayer = roster.FirstOrDefault(x => x.Name == name);

            if (findPlayer != null)
            {
                roster.Remove(findPlayer);
                return true;
            }
            return false;
        }
        public void PromotePlayer(string name)
        {
            var findPlayer = roster.FirstOrDefault(x => x.Name == name);

            if (findPlayer.Rank != "Member" && findPlayer != null)
            {
                findPlayer.Rank = "Member";
            }

        }
        public void DemotePlayer(string name)
        {
            var findPlayer = roster.FirstOrDefault(x => x.Name == name);

            if (findPlayer.Rank != "Trial" && findPlayer != null)
            {
                findPlayer.Rank = "Trial";
            }
        }
        public Player[] KickPlayersByClass(string @class)
        {
            var array = new List<Player>();

            foreach (var player in roster)
            {
                if (player.Class == @class)
                {
                    array.Add(player);
                }
            }
            roster.RemoveAll(x => x.Class == @class);

            return array.ToArray();
        }
        public string Report()
        {
            StringBuilder builder = new StringBuilder();

            builder.AppendLine($"Players in the guild: {Name}");
            foreach (var player in roster)
            {
                builder.AppendLine(player.ToString());
            }

            return builder.ToString().TrimEnd();
        }
    }
}