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

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

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

        //------------Properties-------------
        public string Name { get; private set; }
        public int Capacity { get; private set; }

        public int Count => roster.Count;
        //---------------Methods--------------
        public void AddPlayer(Player player)
        {
            if (roster.Count < this.Capacity)
            {
                roster.Add(player);
            }
        }
        public bool RemovePlayer(string name)
        {
            Player player = roster.Find(x => x.Name == name);
            if (player != null)
            {
                roster.Remove(player);
                return true;
            }
            else
            {
                return false;
            }
        }
        public void PromotePlayer(string name)
        {
            if (roster.Find(x => x.Name == name) == null || roster.Find(x => x.Name == name).Rank == "Member")
            {
                return;
            }
            else
            {
                roster.Find(x => x.Name == name).Rank = "Member";
            }
        }
        public void DemotePlayer(string name)
        {
            Player player = roster.Find(x => x.Name == name);
            if (player == null || player.Rank == "Trial")
            {
                return;
            }
            else
            {
                player.Rank = "Trial";
            }
        }
        public Player[] KickPlayersByClass(string classText)//n.b.change name old was KickPlayerByClass
        {
            Player[] arr;
            arr = roster.Where(x => x.Class == classText).ToArray();
            roster = roster.Where(x => x.Class != classText).ToList();
            return arr;
        }
        public string Report()// n.b. use StringBuilder
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine($"Players in the guild: {this.Name}");//n.b. old was $"Player in the guild: {this.Name}...
            sb.AppendLine($"{String.Join(Environment.NewLine, roster)}");

            return sb.ToString().Trim();
        }
    }
}