using Gameboard.ShogiUI.Sockets.Repositories.CouchModels;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Security.Claims;

namespace Gameboard.ShogiUI.Sockets.Models
{
	public class User
	{
		public static readonly ReadOnlyCollection<string> Adjectives = new(new[] {
			"Fortuitous", "Retractable", "Happy", "Habbitable", "Creative", "Fluffy", "Impervious", "Kingly"
		});
		public static readonly ReadOnlyCollection<string> Subjects = new(new[] {
			"Hippo", "Basil", "Mouse", "Walnut", "Prince", "Lima Bean", "Coala", "Potato", "Penguin"
		});
		public static User CreateMsalUser(string id) => new(id, id, WhichLoginPlatform.Microsoft);
		public static User CreateGuestUser(string id)
		{
			var random = new Random();
			// Adjective
			var index = (int)Math.Floor(random.NextDouble() * Adjectives.Count);
			var adj = Adjectives[index];
			// Subject
			index = (int)Math.Floor(random.NextDouble() * Subjects.Count);
			var subj = Subjects[index];

			return new User(id, $"{adj} {subj}", WhichLoginPlatform.Guest);
		}

		public string Id { get; }
		public string DisplayName { get; }

		public WhichLoginPlatform LoginPlatform { get; }

		public bool IsGuest => LoginPlatform == WhichLoginPlatform.Guest;

		public User(string id, string displayName, WhichLoginPlatform platform)
		{
			Id = id;
			DisplayName = displayName;
			LoginPlatform = platform;
		}

		public User(UserDocument document)
		{
			Id = document.Id;
			DisplayName = document.DisplayName;
			LoginPlatform = document.Platform;
		}

		public ClaimsIdentity CreateClaimsIdentity()
		{
			if (LoginPlatform == WhichLoginPlatform.Guest)
			{
				var claims = new List<Claim>(4)
				{
					new Claim(ClaimTypes.NameIdentifier, Id),
					new Claim(ClaimTypes.Name, DisplayName),
					new Claim(ClaimTypes.Role, "Guest"),
					new Claim(ClaimTypes.Role, "Shogi") // The Shogi role grants access to api controllers.
        };
				return new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
			}
			else
			{
				var claims = new List<Claim>(3)
				{
					new Claim(ClaimTypes.NameIdentifier, Id),
					new Claim(ClaimTypes.Name, DisplayName),
					new Claim(ClaimTypes.Role, "Shogi") // The Shogi role grants access to api controllers.
        };
				return new ClaimsIdentity(claims, JwtBearerDefaults.AuthenticationScheme);
			}
		}

		public ServiceModels.Types.User ToServiceModel() => new()
		{
			Id = Id,
			Name = DisplayName
		};
	}
}