using Contracts.BindingModels;
using Contracts.ViewModels;
using Microsoft.IdentityModel.Tokens;
using System;
using System.CodeDom.Compiler;
using System.Collections.Generic;
using System.IdentityModel.Tokens.Jwt;
using System.Linq;
using System.Security.Claims;
using System.Text;
using System.Threading.Tasks;

namespace BusinessLogic.Tools
{
	public class JwtProvider
	{
		// TODO: Переместить ключ и время  в надежное место
		private const string _key = "secretkey_secretkey_secretkey_secretkey";

		private const int _expiresHours = 24;

		public static string Generate(UserBindingModel user)
		{
			var signingCredentials = new SigningCredentials(
				new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_key)),
				SecurityAlgorithms.HmacSha256);

			Claim[] claims = [
				new("userId", user.Id.ToString()),
				new("role", user.Role.Name)
				];

			var token = new JwtSecurityToken(signingCredentials: signingCredentials,
				expires: DateTime.UtcNow.AddHours(_expiresHours),
				claims: claims);

			var stringToken = new JwtSecurityTokenHandler().WriteToken(token);
			return stringToken;
		}
	}
}