using System;
using System.Collections.Generic;
using System.Web.Mvc;
using Neo.Afx.Common;
using Neo.LegitimateLicences.Common.Helpers;
using Neo.LegitimateLicences.LicenceIssueRequest.Models.Database;

namespace Neo.LegitimateLicences.LicenceIssueRequest
{
    public partial class LicenceIssueRequestController
    {
        #region SaveDateOfExpiry (autosave)
        // The Licence Issuing Details form renders on every workflow step (Data Capture,
        // Printing, etc.) but the Save button is gated to Data Capture only. The clerk
        // captures DateOfExpiry on this form — at any step before the licence is printed
        // — so we autosave the picker via this lightweight endpoint instead of requiring
        // a Save click. Once DateOfIssue is stamped at first print, this endpoint becomes
        // a no-op (UpdateLicenceDateOfExpiry has the `WHERE DateOfIssue IS NULL` guard).
        [HttpPost]
        public JsonNetResult SaveDateOfExpiry(long licenceIssueDetailID, DateTime? dateOfExpiry)
        {
            try
            {
                if (!dateOfExpiry.HasValue)
                {
                    return new JsonNetResult
                    {
                        Data = new JsonBaseResult { Success = false, ErrorCode = "ERROR", Error = "Date of Expiry is required." }
                    };
                }

                if (dateOfExpiry.Value.Date < DateTime.Today)
                {
                    return new JsonNetResult
                    {
                        Data = new JsonBaseResult { Success = false, ErrorCode = "ERROR", Error = "Date of Expiry cannot be in the past." }
                    };
                }

                // Lightweight lookup — autosave fires on every picker change and must be fast.
                // GetLicenceIssueForm pulls the whole vehicle/member/routes/services graph and
                // was causing ~20s hangs on the autosave roundtrip.
                var liDb = new LicenceIssueDatabase();
                var state = liDb.GetLicenceIdAndIssueState(licenceIssueDetailID);
                if (state == null)
                {
                    return new JsonNetResult
                    {
                        Data = new JsonBaseResult { Success = false, ErrorCode = "ERROR", Error = "Licence not found." }
                    };
                }

                // DateOfExpiry remains editable for the life of the licence, including
                // after first print, so the clerk can correct mistakes / extend validity.
                liDb.UpdateLicenceDateOfExpiry(state.LicenceID, dateOfExpiry);

                return new JsonNetResult
                {
                    Data = new JsonBaseResult { Success = true, Error = "", ErrorCode = "" }
                };
            }
            catch (Exception ex)
            {
                var additionalData = new Dictionary<string, object>
                {
                    { "licenceIssueDetailID", licenceIssueDetailID },
                    { "dateOfExpiry", dateOfExpiry }
                };
                var errorMessage = ErrorHelper.ProcessError(ex, "LicenceIssueRequest", "SaveDateOfExpiry", additionalData);
                return new JsonNetResult
                {
                    Data = new JsonBaseResult { Success = false, ErrorCode = "ERROR", Error = errorMessage }
                };
            }
        }
        #endregion
    }
}