using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Authorization;
using Microsoft.EntityFrameworkCore;
using rockfishCore.Models;
using rockfishCore.Util;
using System.ComponentModel.DataAnnotations;

namespace rockfishCore.Controllers
{
    [Produces("text/plain")]
    [Route("rvl")]
    public class RvlController : Controller //RAVEN license controller
    {
        private readonly rockfishContext ct;


        public RvlController(rockfishContext context)
        {
            ct = context;
        }

        public class dtoRavLicense
        {
            [Required]
            public string RegisteredTo { get; set; }
            [Required]
            public Guid DbId { get; set; }
            [Required]
            public long LicenseExpiration { get; set; }
            [Required]
            public long MaintenanceExpiration { get; set; }
            [Required]
            public List<dtoLicenseFeature> Features { get; set; }
            [Required]
            public long SiteId { get; set; }
        }
        public class dtoLicenseFeature
        {
            dtoLicenseFeature()
            {
                Count = 0;
            }
            //name of feature / product
            public string Feature { get; set; }
            //Optional count for items that require it
            public long Count { get; set; }
        }


#if (DEBUG)
        private const string LICENSE_SERVER_URL = "http://localhost:3001/";
        public const string SUPPORT_EMAIL = "cardjohn@ayanova.com";
#else
        private const string LICENSE_SERVER_URL = "https://rockfish.ayanova.com/";
        public const string SUPPORT_EMAIL="support@ayanova.com";
#endif

        [HttpPost]
        public async Task<IActionResult> Post([FromBody] dtoRavLicense l)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }


            //Get customer from site id
            var CustomerId = await ct.Site.AsNoTracking().Where(z => z.Id == l.SiteId).Select(z => z.CustomerId).FirstOrDefaultAsync();

            if (CustomerId == 0)
            {
                return BadRequest($"Customer could not be found for site id {l.SiteId}");
            }

            var Customer = await ct.Customer.AsNoTracking().Where(z => z.Id == CustomerId).FirstOrDefaultAsync();
            if (Customer == null)
            {
                return BadRequest($"Customer could not be found for customer id {CustomerId}");
            }

            if (string.IsNullOrWhiteSpace(Customer.AdminEmail))
            {
                return BadRequest($"Customer does not have an Admin / License email address, no where to send key");
            }

            if (!Customer.Active)
            {
                return BadRequest($"Customer {Customer.Name} is not Active, set to active and try again");
            }

            if (Customer.DoNotContact)
            {
                return BadRequest($"Customer {Customer.Name} is set to DO NOT CONTACT, unable to process and send key");
            }


            var newLicense = new RavenKeyFactory.AyaNovaLicenseKey();

            newLicense.RegisteredTo = l.RegisteredTo;
            newLicense.DbId = l.DbId;
            newLicense.LicenseExpiration = DateUtil.EpochToDate(l.LicenseExpiration);
            newLicense.MaintenanceExpiration = DateUtil.EpochToDate(l.MaintenanceExpiration);
            foreach (dtoLicenseFeature f in l.Features)
            {
                newLicense.Features.Add(new RavenKeyFactory.LicenseFeature() { Feature = f.Feature, Count = f.Count });
            }

            //Everything seems to be in order generate the license, save it and send it
         



            var NewRequest = new TrialRequest();
            NewRequest.Email = r.Email;
            NewRequest.DbId = r.DbId;
            NewRequest.CompanyName = r.Company;
            NewRequest.ContactName = r.Contact;
            await ct.TrialRequest.AddAsync(NewRequest);
            await ct.SaveChangesAsync();
            NewRequest.EmailConfirmCode = NewRequest.Id.ToString() + FetchKeyCode.generate();
            await ct.SaveChangesAsync();
            var verifyUrl = LICENSE_SERVER_URL + $"rvr/verify/{NewRequest.EmailConfirmCode}";
            var body = $"Please verify your email address by clicking the link below or copy and pasting into a browser\r\n{verifyUrl}\r\n(If you did not request this you can ignore this message)";
            //send confirmation email
            RfMail.SendMessage("support@ayanova.com", NewRequest.Email, "AyaNova trial request email verification", body, false);
            //return Ok(new { Accepted = true });
            return Accepted();

        }

        [HttpGet("verify/{code}")]
        public async Task<IActionResult> GetVerify([FromRoute] string code)
        {
            //is there a valid trial request
            var req = await ct.TrialRequest.Where(z => z.EmailConfirmCode == code && z.DtFetched == null && z.Status == TrialRequest.TrialRequestStatus.NotSet).FirstOrDefaultAsync();
            if (req == null)
            {
                return new ContentResult
                {
                    ContentType = "text/html",
                    StatusCode = 200,
                    Content = "<html><body><h4>Request not found</h4><p>There was no evaluation request associated with this verification code.</p></body></html>"
                };
            }

            req.EmailValidated = true;
            await ct.SaveChangesAsync();

            //notify *us*
            //http://localhost:3001/default.htm#!/trials/[id]
            var rfUrl = LICENSE_SERVER_URL + $"default.htm#!/trialEdit/{req.Id}";
            var body = $"Email address {req.Email} was just verified for {req.ContactName} at {req.CompanyName}.\r\nTrial key is ready to be processed now:\r\n{rfUrl}";
            //send confirmation email
            RfMail.SendMessage("support@ayanova.com", SUPPORT_EMAIL, "AyaNova trial request requiring action", body, false);

            return new ContentResult
            {
                ContentType = "text/html",
                StatusCode = 200,
                Content = "<html><body><h4>Email validated!</h4><p>Your request is being processed and you will receive an email with instructions for starting your AyaNova evaluation.</p></body></html>"
            };
        }


    }//eoc
}//eons