using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Routing;
using Microsoft.Extensions.Logging;
using Microsoft.EntityFrameworkCore;
using System.Linq;
using Sockeye.Models;
using Sockeye.Biz;
using Sockeye.Api.ControllerHelpers;
using System.ComponentModel.DataAnnotations;

namespace Sockeye.Api.Controllers
{
    [ApiController]
    [ApiVersion("8.0")]
    //[ApiExplorerSettings(IgnoreApi = true)]
    [Route("subscription-server-trial-request")]//SUBSCRIPTION SERVER TRIAL REQUEST HANDLER ROUTE
    [Produces("application/json")]
    public class SubscriptionServerTrialRequestController : ControllerBase
    {

        private readonly AyContext ct;
        private readonly ILogger<SubscriptionServerTrialRequestController> log;
        private readonly ApiServerState serverState;

        /// <summary>
        /// ctor
        /// </summary>
        /// <param name="dbcontext"></param>
        /// <param name="logger"></param>
        /// <param name="apiServerState"></param>  
        public SubscriptionServerTrialRequestController(AyContext dbcontext, ILogger<SubscriptionServerTrialRequestController> logger, ApiServerState apiServerState)
        {
            ct = dbcontext;
            log = logger;
            serverState = apiServerState;
        }

        public class dtoSubscriptionServerTrialRequest
        {
            [Required]
            public string DataCenter { get; set; }
            [Required, EmailAddress]
            public string Email { get; set; }
            [Required]
            public string Company { get; set; }
            [Required]
            public string Name { get; set; }
            [Required]
            public string RValue { get; set; }
        }



        //#########################################################
        //REQUEST ROUTE CALLED FROM CONTACT FORMS APP
        //#########################################################
        [HttpPost]
        public async Task<IActionResult> Post([FromBody] dtoSubscriptionServerTrialRequest r)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));

            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            if (r.RValue != "totallylegit")
            {
                return BadRequest();
            }


            //Already a pending request?
            if (await ct.SubscriptionServer.Where(z => z.ServerState == ServerState.Requested && z.TrialEmail == r.Email).AnyAsync())
            {
                return Ok("Request awaiting approval");
            }

            //can't do this if there is an active server already in action
            if (await ct.SubscriptionServer.Where(z => (z.ServerState != ServerState.Destroyed) && z.TrialEmail == r.Email).AnyAsync())
            {
                return BadRequest("E1000 - Can't trial; there is already an active server for this email address");
            }


            /*
              new SelectListItem { Value = "SF", Text = "San Francisco" },
                        new SelectListItem { Value = "NY", Text = "New York" },
                        new SelectListItem { Value = "TOR", Text = "Toronto"  },
                        new SelectListItem { Value = "AMS", Text = "Amsterdam"  },
                        new SelectListItem { Value = "LON", Text = "London"  },
                        new SelectListItem { Value = "FFT", Text = "Frankfurt"  },
                        new SelectListItem { Value = "SNG", Text = "Singapore"  },
                        new SelectListItem { Value = "BNG", Text = "Bangalore"  },
                        new SelectListItem { Value = "SYD", Text = "Sydney Australia"  }
            */


            //Everything seems to be in order, save the request and return ok
            var newObject = new SubscriptionServer();
            switch (r.DataCenter)
            {
                case "SF":
                    newObject.TimeZone = "America/Los_Angeles";
                    break;
                case "NY":
                    newObject.TimeZone = "America/New_York";
                    break;
                case "TOR":
                    newObject.TimeZone = "America/Toronto";
                    break;
                case "AMS":
                    newObject.TimeZone = "Europe/Amsterdam";
                    break;
                case "LON":
                    newObject.TimeZone = "Europe/London";
                    break;
                case "FFT":
                    newObject.TimeZone = "Europe/Berlin";
                    break;
                case "SNG":
                    newObject.TimeZone = "Asia/Singapore";
                    break;
                case "BNG":
                    newObject.TimeZone = "Asia/Kolkata";
                    break;
                case "SYD":
                    newObject.TimeZone = "Australia/Sydney";
                    break;
            }

            newObject.Name = "XXX.onayanova.com";
            newObject.ServerState = ServerState.Requested;
            newObject.SubscriptionExpire = System.DateTime.UtcNow.AddDays(8);
            newObject.Trial = true;
            newObject.DataCenter = r.DataCenter;
            newObject.TrialCompany = r.Company;
            newObject.TrialContact = r.Name;
            newObject.TrialEmail = r.Email;

            SubscriptionServerBiz biz = SubscriptionServerBiz.GetBiz(ct);
            SubscriptionServer o = await biz.CreateAsync(newObject);
            if (o == null)
            {
                var msg = ($"Unexpected error (code SE-555 was returned to customer) processing a new trial license request:{biz.GetErrorsAsString}");
                log.LogError(msg);
                await NotifyEventHelper.AddOpsProblemEvent(msg);
                return BadRequest($"E1000 - Error processing request code SE-555 contact support");//don't want to leak any info so need to check sockeye log if get this error
            }
            else
                return Accepted();
        }



        //------------


    }//eoc
}//eons