using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.IdentityModel.Tokens;
using Microsoft.Net.Http.Headers;
using System;
using System.Collections.Generic;
using System.IdentityModel.Tokens.Jwt;
using System.Linq;
using System.Security.Claims;
using System.Text;
using System.Threading.Tasks;
using Teso_API.Methods;
using Teso_API.Models;

// For more information on enabling Web API for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860

namespace Teso_API.Controllers
{
    [AllowAnonymous]
    [ApiController]
    public class StatusController : ControllerBase
    {
        readonly ITokenService tokenService;

        public StatusController( ITokenService tokenService)
        {
            this.tokenService = tokenService ?? throw new ArgumentNullException(nameof(tokenService));
        }

        // GET: api/<StatusController>
        [Authorize]
        [HttpGet, Route("serverstatus")]
        public ActionResult Get()
        {
            var accessToken = Request.Headers[HeaderNames.Authorization];
            string token = accessToken;
            token = token.Substring(6).Trim();
            var handler = new JwtSecurityTokenHandler();
            var jwtToken = handler.ReadToken(token) as JwtSecurityToken;
            string userID = jwtToken.Claims.First(claim => claim.Type == "userGUID").Value;
            string Username = jwtToken.Claims.First(claim => claim.Type == "username").Value;
            string DeviceToken = jwtToken.Claims.First(claim => claim.Type == "deviceToken").Value;
            //return Ok("Developed by Bacware Tech");
            int timestamp_issued = (int)new DateTimeOffset(DateTimeOffset.UtcNow.DateTime).ToUnixTimeMilliseconds();
            int timestamp_expires = (int)new DateTimeOffset(DateTimeOffset.UtcNow.DateTime.AddDays(14)).ToUnixTimeMilliseconds();
            int timestamp_issuednbf = (int)new DateTimeOffset(DateTimeOffset.UtcNow.DateTime.AddMinutes(1)).ToUnixTimeMilliseconds();

            //create claims details based on the user information
            var claims = new[] {
                    new Claim(JwtRegisteredClaimNames.Iat,  timestamp_issued.ToString()),
                    new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()),
                    new Claim(JwtRegisteredClaimNames.Iss,  ServerLocation.issuer),
                    new Claim(JwtRegisteredClaimNames.Exp,  timestamp_expires.ToString()),
                    new Claim(JwtRegisteredClaimNames.Nbf,  timestamp_issuednbf.ToString()),
                    new Claim(JwtRegisteredClaimNames.Sub,  userID.ToString()),
                    new Claim("username", Username.ToString()),
                    new Claim("userGUID", userID.ToString()),
                    new Claim("deviceToken", DeviceToken),
                   };
            string newtoken = this.tokenService.GenerateAccessToken(claims);
            return Ok(newtoken);
        }
    }
}