using AyCode.Core.Loggers;
using AyCode.Services.SignalRs;
using FruitBank.Common.Dtos;
using FruitBank.Common.Entities;
using FruitBank.Common.Interfaces;
using FruitBank.Common.Server.Interfaces;
using FruitBank.Common.SignalRs;
using Mango.Nop.Core.Extensions;
using Mango.Nop.Core.Loggers;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
using Nop.Core.Domain.Customers;
using Nop.Core.Domain.Orders;
using Nop.Core.Domain.Payments;
using Nop.Core.Domain.Shipping;
using Nop.Core.Domain.Tax;
using Nop.Plugin.Misc.FruitBankPlugin.Domains.DataLayer;
using Nop.Plugin.Misc.FruitBankPlugin.Factories;
using Nop.Plugin.Misc.FruitBankPlugin.Models.Orders;
using Nop.Services.Catalog;
using Nop.Services.Common;
using Nop.Services.Customers;
using Nop.Services.Messages;
using Nop.Services.Orders;
using Nop.Services.Payments;
using Nop.Services.Security;
using Nop.Web.Areas.Admin.Controllers;
using Nop.Web.Areas.Admin.Factories;
using Nop.Web.Areas.Admin.Models.Orders;
using Nop.Web.Framework;
using Nop.Web.Framework.Mvc.Filters;
using System.Text.Json.Serialization;
using System.Xml;
using System.Xml.Serialization;

namespace Nop.Plugin.Misc.FruitBankPlugin.Areas.Admin.Controllers
{
    [Area(AreaNames.ADMIN)]
    [AuthorizeAdmin]
    public class CustomOrderController : BaseAdminController, ICustomOrderSignalREndpointServer
    {
        private readonly FruitBankDbContext _dbContext;

        private readonly IOrderService _orderService;
        private readonly CustomOrderModelFactory _orderModelFactory;
        private readonly ICustomOrderSignalREndpointServer _customOrderSignalREndpoint;
        private readonly IPermissionService _permissionService;
        private readonly IGenericAttributeService _genericAttributeService;
        private readonly INotificationService _notificationService;
        private readonly ICustomerService _customerService;
        private readonly IProductService _productService; 
        // ... other dependencies

        private readonly ILogger _logger;

        public CustomOrderController(FruitBankDbContext fruitBankDbContext, IOrderService orderService, IOrderModelFactory orderModelFactory, ICustomOrderSignalREndpointServer customOrderSignalREndpoint, IPermissionService permissionService, IGenericAttributeService genericAttributeService, INotificationService notificationService, ICustomerService customerService, IProductService productService, IEnumerable<IAcLogWriterBase> logWriters)
        {
            _logger = new Logger<CustomOrderController>(logWriters.ToArray());
            
            _dbContext = fruitBankDbContext;
            _orderService = orderService;
            _orderModelFactory = orderModelFactory as CustomOrderModelFactory;
            _customOrderSignalREndpoint = customOrderSignalREndpoint;
            _permissionService = permissionService;
            _genericAttributeService = genericAttributeService;
            _notificationService = notificationService;
            _customerService = customerService;
            _productService = productService;
            // ... initialize other deps
        }

        #region CustomOrderSignalREndpoint
        [NonAction] public Task<List<OrderDto>> GetAllOrderDtos() => _customOrderSignalREndpoint.GetAllOrderDtos();
        [NonAction]public Task<OrderDto> GetOrderDtoById(int orderId) => _customOrderSignalREndpoint.GetOrderDtoById(orderId);
        [NonAction]public Task<List<OrderDto>> GetPendingOrderDtos() => _customOrderSignalREndpoint.GetPendingOrderDtos();
        [NonAction] public Task<OrderDto> StartMeasuring(int orderId, int userId) => _customOrderSignalREndpoint.StartMeasuring(orderId, userId);
        [NonAction]public Task<OrderDto> SetOrderStatusToComplete(int orderId, int revisorId) => _customOrderSignalREndpoint.SetOrderStatusToComplete(orderId, revisorId);
        [NonAction] public Task<List<OrderDto>> GetAllOrderDtoByIds(int[] orderIds) => _customOrderSignalREndpoint.GetAllOrderDtoByIds(orderIds);
        [NonAction] public Task<OrderItemPallet> AddOrUpdateMeasuredOrderItemPallet(OrderItemPallet orderItemPallet) => _customOrderSignalREndpoint.AddOrUpdateMeasuredOrderItemPallet(orderItemPallet);
        #endregion CustomOrderSignalREndpoint

        [CheckPermission(StandardPermission.Orders.ORDERS_VIEW)]
        public virtual async Task<IActionResult> List(List<int> orderStatuses = null, List<int> paymentStatuses = null, List<int> shippingStatuses = null)
        {
            //prepare model
            var model = await _orderModelFactory.PrepareOrderSearchModelAsync(new OrderSearchModel
            {
                OrderStatusIds = orderStatuses,
                PaymentStatusIds = paymentStatuses,
                ShippingStatusIds = shippingStatuses,
            });            

            return View("~/Plugins/Misc.FruitBankPlugin/Areas/Admin/Views/Order/List.cshtml", model);
        }

        [HttpPost]
        [CheckPermission(StandardPermission.Orders.ORDERS_VIEW)]
        public async Task<IActionResult> OrderList(OrderSearchModel searchModel)
        {
            //prepare model
            var orderListModel = await GetOrderListModelByFilter(searchModel);
            //var orderListModel = new OrderListModel();
            
            var valami = Json(orderListModel);
            Console.WriteLine(valami);
            return valami;
        }

        public async Task<OrderListModelExtended> GetOrderListModelByFilter(OrderSearchModel searchModel)
        {
            //return _customOrderService.
            var orderListModel = await _orderModelFactory.PrepareOrderListModelExtendedAsync(searchModel);
            
            _logger.Debug($"Total: {orderListModel.RecordsTotal}, Data Count: {orderListModel.Data.Count()}");
            foreach (var item in orderListModel.Data.Take(3))
            {
                _logger.Debug($"Order: {item.Id}, {item.CustomOrderNumber}");
            }

            return orderListModel;
        }

        public virtual IActionResult Test()
        {
            // Your custom logic here
            // This will use your custom List.cshtml view
            return View("~/Plugins/Misc.FruitBankPlugin/Areas/Admin/Views/Order/Test.cshtml");
        }

        //[HttpPost]
        //[CheckPermission(Nop.Services.Security.StandardPermission.Orders.ORDERS_VIEW)]
        //public virtual async Task<IActionResult> OrderList(OrderSearchModel searchModel)
        //{
        //    //prepare model
        //    var model = await _orderModelFactory.PrepareOrderListModelAsync(searchModel);

        //    return Json(model);
        //}

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> SaveOrderAttributes(OrderAttributesModel model)
        {
            if (!ModelState.IsValid)
            {
                // reload order page with errors
                return RedirectToAction("Edit", "Order", new { id = model.OrderId });
            }

            var order = await _orderService.GetOrderByIdAsync(model.OrderId);
            if (order == null)
                return RedirectToAction("List", "Order");

            // store attributes in GenericAttribute table
            await _genericAttributeService.SaveAttributeAsync(order, nameof(IMeasurable.IsMeasurable), model.IsMeasurable);
            await _genericAttributeService.SaveAttributeAsync(order, nameof(IOrderDto.DateOfReceipt), model.DateOfReceipt);

            _notificationService.SuccessNotification("Custom attributes saved successfully.");

            return RedirectToAction("Edit", "Order", new { id = model.OrderId });
        }

        [HttpPost]
        //[CheckPermission(StandardPermission.Orders.ORDERS_CREATE)]
        public virtual async Task<IActionResult> Create(int customerId, string orderProductsJson)
        {
            if (!await _permissionService.AuthorizeAsync(StandardPermission.Orders.ORDERS_CREATE_EDIT_DELETE))
                return AccessDeniedView();

            // Validate customer
            var customer = await _customerService.GetCustomerByIdAsync(customerId);
            if (customer == null) return RedirectToAction("List");

            // Parse products
            var orderProducts = string.IsNullOrEmpty(orderProductsJson) ? [] : JsonConvert.DeserializeObject<List<OrderProductItem>>(orderProductsJson);

            // Create order
            var order = new Order
            {
                OrderGuid = Guid.NewGuid(),
                CustomOrderNumber = null,
                CustomerId = customerId,
                CustomerLanguageId = customer.LanguageId ?? 1,
                CustomerTaxDisplayType = TaxDisplayType.IncludingTax,
                CustomerIp = string.Empty,
                OrderStatus = OrderStatus.Pending,
                PaymentStatus = PaymentStatus.Pending,
                ShippingStatus = ShippingStatus.ShippingNotRequired,
                CreatedOnUtc = DateTime.UtcNow,
                BillingAddressId = customer.BillingAddressId ?? 0,
                ShippingAddressId = customer.ShippingAddressId
            };

            var productDtosById = await _dbContext.ProductDtos.GetAllByIds(orderProducts.Select(op => op.Id)).ToDictionaryAsync(p => p.Id, prodDto => prodDto);

            var transactionSuccess = await _dbContext.TransactionSafeAsync(async _ =>
            {
                await _orderService.InsertOrderAsync(order);

                foreach (var item in orderProducts)
                {
                    //var product = await _productService.GetProductByIdAsync(item.Id);
                    //if (product != null)

                    if (productDtosById.TryGetValue(item.Id, out var product))
                    {
                        var orderItem = new OrderItem
                        {
                            OrderId = order.Id,
                            ProductId = item.Id,
                            Quantity = item.Quantity,
                            UnitPriceInclTax = item.Price,
                            UnitPriceExclTax = item.Price,
                            PriceInclTax = item.Price * item.Quantity,
                            PriceExclTax = item.Price * item.Quantity,
                            OriginalProductCost = product.ProductCost,
                            AttributeDescription = string.Empty,
                            AttributesXml = string.Empty,
                            DiscountAmountInclTax = 0,
                            DiscountAmountExclTax = 0
                        };
                        //var valami = product.GenericAttributes.GetValueOrNull<bool>(nameof(IOrderDto.DateOfReceipt)); TEST - A.
                        await _orderService.InsertOrderItemAsync(orderItem);
                    }
                    else _logger.Error($"(productDtosById.TryGetValue(item.Id, out var product) == false); {item}");
                }

                return true;
            });

            if (transactionSuccess) return RedirectToAction("Edit", "Order", new { id = order.Id });

            _logger.Error($"(transactionSuccess == false)");
            return RedirectToAction("Error", new { id = order.Id });
        }

        public class OrderProductItem
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public string Sku { get; set; }
            public int Quantity { get; set; }
            public decimal Price { get; set; }

            public override string ToString()
            {
                return $"{nameof(OrderProductItem)} [Id: {Id}; Name: {Name}; Sku: {Sku}; Quantity: {Quantity}; Price: {Price}]";
            }
        }

        //private static OrderItem CreateOrderItem(ProductToAuctionMapping productToAuction, Order order, decimal orderTotal)
        //{
        //    return new OrderItem
        //    {
        //        ProductId = productToAuction.ProductId,
        //        OrderId = order.Id,
        //        OrderItemGuid = Guid.NewGuid(),
        //        PriceExclTax = orderTotal,
        //        PriceInclTax = orderTotal,
        //        UnitPriceExclTax = orderTotal,
        //        UnitPriceInclTax = orderTotal,
        //        Quantity = productToAuction.ProductAmount,
        //    };
        //}

        //private static Order CreateOrder(ProductToAuctionMapping productToAuction, decimal orderTotal, Customer customer, Address billingAddress, int storeId, Dictionary<string, object> customValues)
        //{
        //    return new Order
        //    {
        //        BillingAddressId = billingAddress.Id,
        //        CreatedOnUtc = DateTime.UtcNow,
        //        CurrencyRate = 1,
        //        CustomOrderNumber = productToAuction.AuctionId + "/" + productToAuction.SortIndex,
        //        CustomValuesXml = SerializeCustomValuesToXml(customValues),
        //        CustomerCurrencyCode = "HUF",
        //        CustomerId = productToAuction.WinnerCustomerId,
        //        CustomerLanguageId = 2,
        //        CustomerTaxDisplayType = TaxDisplayType.IncludingTax,
        //        OrderGuid = Guid.NewGuid(),
        //        OrderStatus = OrderStatus.Pending,
        //        OrderTotal = orderTotal,
        //        PaymentStatus = PaymentStatus.Pending,
        //        PaymentMethodSystemName = "Payments.CheckMoneyOrder",
        //        ShippingStatus = ShippingStatus.ShippingNotRequired,
        //        StoreId = storeId,
        //        VatNumber = customer.VatNumber,
        //        CustomerIp = customer.LastIpAddress,
        //        OrderSubtotalExclTax = orderTotal,
        //        OrderSubtotalInclTax = orderTotal
        //    };
        //}

        private static OrderNote CreateOrderNote(Order order, string note)
        {
            return new OrderNote
            {
                CreatedOnUtc = order.CreatedOnUtc,
                DisplayToCustomer = true,
                OrderId = order.Id,
                Note = note
            };
        }

        private static string SerializeCustomValuesToXml(Dictionary<string, object> sourceDictionary)
        {
            ArgumentNullException.ThrowIfNull(sourceDictionary);

            if (!sourceDictionary.Any())
                return null;

            var ds = new DictionarySerializer(sourceDictionary);
            var xs = new XmlSerializer(typeof(DictionarySerializer));

            using var textWriter = new StringWriter();
            using (var xmlWriter = XmlWriter.Create(textWriter))
            {
                xs.Serialize(xmlWriter, ds);
            }

            var result = textWriter.ToString();
            return result;
        }


        [HttpGet]  // Change from [HttpPost] to [HttpGet]
        [CheckPermission(StandardPermission.Customers.CUSTOMERS_VIEW)]
        public virtual async Task<IActionResult> CustomerSearchAutoComplete(string term)
        {
            if (string.IsNullOrWhiteSpace(term) || term.Length < 2)
                return Json(new List<object>());

            const int maxResults = 15;

            // Search by email (contains)
            var customersByEmail = await _customerService.GetAllCustomersAsync(
                email: term,
                pageIndex: 0,
                pageSize: maxResults);

            // Search by first name (contains)
            var customersByFirstName = await _customerService.GetAllCustomersAsync(
                firstName: term,
                pageIndex: 0,
                pageSize: maxResults);

            // Search by last name (contains)
            var customersByLastName = await _customerService.GetAllCustomersAsync(
                lastName: term,
                pageIndex: 0,
                pageSize: maxResults);

            // Combine and deduplicate results
            var allCustomers = customersByEmail
                .Union(customersByFirstName)
                .Union(customersByLastName)
                .DistinctBy(c => c.Id)
                .Take(maxResults)
                .ToList();

            var result = new List<object>();
            foreach (var customer in allCustomers)
            {
                var fullName = await _customerService.GetCustomerFullNameAsync(customer);
                var displayText = !string.IsNullOrEmpty(customer.Email)
                    ? $"{customer.Email} ({fullName})"
                    : fullName;

                result.Add(new
                {
                    label = displayText,
                    value = customer.Id
                });
            }

            return Json(result);
        }

        [HttpGet]
        [CheckPermission(StandardPermission.Catalog.PRODUCTS_VIEW)]
        public virtual async Task<IActionResult> ProductSearchAutoComplete(string term)
        {
            if (string.IsNullOrWhiteSpace(term) || term.Length < 2)
                return Json(new List<object>());

            const int maxResults = 15;

            // Search products by name or SKU
            var products = await _productService.SearchProductsAsync(
                keywords: term,
                pageIndex: 0,
                pageSize: maxResults);

            var result = new List<object>();
            foreach (var product in products)
            {
                result.Add(new
                {
                    label = product.Name,
                    value = product.Id,
                    sku = product.Sku,
                    price = product.Price
                });
            }

            return Json(result);
        }

        //[HttpPost]
        //public async Task<IActionResult> CreateInvoice(int orderId)
        //{
        //    try
        //    {
        //        var order = await _orderService.GetOrderByIdAsync(orderId);
        //        if (order == null)
        //            return Json(new { success = false, message = "Order not found" });

        //        var billingAddress = await _customerService.GetCustomerBillingAddressAsync(order.Customer);
        //        if (billingAddress == null)
        //            return Json(new { success = false, message = "Billing address not found" });

        //        var country = await _countryService.GetCountryByAddressAsync(billingAddress);
        //        var countryCode = country?.TwoLetterIsoCode ?? "HU";

        //        // Create invoice request
        //        var invoiceRequest = new InvoiceCreateRequest
        //        {
        //            VevoNev = $"{billingAddress.FirstName} {billingAddress.LastName}",
        //            VevoIrsz = billingAddress.ZipPostalCode ?? "",
        //            VevoTelep = billingAddress.City ?? "",
        //            VevoOrszag = countryCode,
        //            VevoUtcaHsz = $"{billingAddress.Address1} {billingAddress.Address2}".Trim(),
        //            SzamlatombID = 1, // Configure this based on your setup
        //            SzamlaKelte = DateTime.Now,
        //            TeljesitesKelte = DateTime.Now,
        //            Hatarido = DateTime.Now.AddDays(15), // 15 days payment term
        //            Devizanem = order.CustomerCurrencyCode,
        //            FizetesiMod = order.PaymentMethodSystemName,
        //            Felretett = false,
        //            Proforma = false,
        //            Email = billingAddress.Email,
        //            Telefon = billingAddress.PhoneNumber
        //        };

        //        // Add order items
        //        var orderItems = await _orderService.GetOrderItemsAsync(order.Id);
        //        foreach (var item in orderItems)
        //        {
        //            var product = await _productService.GetProductByIdAsync(item.ProductId);

        //            invoiceRequest.AddItem(new InvoiceItem
        //            {
        //                TetelNev = product?.Name ?? "Product",
        //                AfaSzoveg = "27%", // Configure VAT rate as needed
        //                Brutto = true,
        //                EgysegAr = item.UnitPriceInclTax,
        //                Mennyiseg = item.Quantity,
        //                MennyisegEgyseg = "db",
        //                CikkSzam = product?.Sku
        //            });
        //        }

        //        // Create invoice via API
        //        var response = await _innVoiceApiService.CreateInvoiceAsync(invoiceRequest);

        //        if (response.IsSuccess)
        //        {
        //            // TODO: Save invoice details to your database for future reference
        //            // You might want to create a custom table to store:
        //            // - OrderId
        //            // - InnVoice TableId
        //            // - Invoice Number
        //            // - PDF URL
        //            // - Created Date

        //            return Json(new
        //            {
        //                success = true,
        //                message = "Invoice created successfully",
        //                data = new
        //                {
        //                    tableId = response.TableId,
        //                    invoiceNumber = response.Sorszam,
        //                    sorszam = response.Sorszam,
        //                    printUrl = response.PrintUrl
        //                }
        //            });
        //        }
        //        else
        //        {
        //            return Json(new
        //            {
        //                success = false,
        //                message = $"InnVoice API Error: {response.Message}"
        //            });
        //        }
        //    }
        //    catch (Exception ex)
        //    {
        //        return Json(new
        //        {
        //            success = false,
        //            message = $"Error: {ex.Message}"
        //        });
        //    }
        //}

        //[HttpGet]
        //public async Task<IActionResult> GetInvoiceStatus(int orderId)
        //{
        //    try
        //    {
        //        // TODO: Retrieve invoice details from your database
        //        // This is a placeholder - you need to implement actual storage/retrieval

        //        // Example: var invoiceData = await _yourInvoiceService.GetByOrderIdAsync(orderId);
        //        // if (invoiceData != null)
        //        // {
        //        //     return Json(new
        //        //     {
        //        //         success = true,
        //        //         data = new
        //        //         {
        //        //             tableId = invoiceData.TableId,
        //        //             invoiceNumber = invoiceData.InvoiceNumber,
        //        //             sorszam = invoiceData.InvoiceNumber,
        //        //             printUrl = invoiceData.PrintUrl
        //        //         }
        //        //     });
        //        // }

        //        return Json(new
        //        {
        //            success = false,
        //            message = "No invoice found for this order"
        //        });
        //    }
        //    catch (Exception ex)
        //    {
        //        return Json(new
        //        {
        //            success = false,
        //            message = $"Error: {ex.Message}"
        //        });
        //    }
        //}

    }
}