Teso_API/Teso API/AuthControllers/ActivationHandlerController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Teso_API.Models;

namespace Teso_API.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class ActivationHandlerController : ControllerBase
    {
        private readonly TESOContext _context;

        public ActivationHandlerController(TESOContext context)
        {
            _context = context;
        }

        // GET: api/ActivationHandler/5
        [HttpGet("{id}")]
        public async Task<ActionResult<ActivationCodes>> GetActivationCodes(string id)
        {
            if (ActivationCodesExists(id))
            {
                string guid = await _context.ActivationCodes.AsQueryable().Where(e => e.CodeGuid == id).Select(b => b.UserGuid).FirstOrDefaultAsync();

                UserAuth user = await _context.UserAuths.AsQueryable().Where(e => e.UserGUID == guid).FirstOrDefaultAsync();
                user.Status = "verified";

                _context.Entry(user).State = EntityState.Modified;

                try
                {
                    await _context.SaveChangesAsync();
                }
                catch
                {
                    return NotFound();
                }
                return Ok("Account Verified");
            }
            else
            {
                return BadRequest();
            }
        }

        [HttpPost]
        public async Task<ActionResult> Activate([FromBody] int code)
        {
            string guid = await _context.ActivationCodes.AsQueryable().Where(e => e.Code == code).Select(b => b.UserGuid).FirstOrDefaultAsync();
            UserAuth user = await _context.UserAuths.AsQueryable().Where(e => e.UserGUID == guid).FirstOrDefaultAsync();
            user.Status = "verified";

            _context.Entry(user).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch
            {
                return NotFound();
            }

            return Ok("Account Verified");
        }

        private bool ActivationCodesExists(string id)
        {
            if (_context.ActivationCodes.Any(e => e.CodeGuid == id))
            {
                DateTime generated = _context.ActivationCodes.AsQueryable().Where(e => e.CodeGuid == id).Select(e => e.DateGenerated).FirstOrDefault();
                TimeSpan diff1 = DateTime.Now.Subtract(generated);

                if (diff1.Hours < 48)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            else
            {
                return false;
            }
        }
    }
}