using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using PartSource.Automation.Models;
using PartSource.Data;
using PartSource.Data.Contexts;
using PartSource.Data.Models;
using PartSource.Services;
using Ratermania.Automation.Interfaces;
using Ratermania.Shopify;
using Ratermania.Shopify.Exceptions;
using Ratermania.Shopify.Resources;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace PartSource.Automation.Jobs
{
	public class UpdateFitmentHtml : IAutomationJob
	{
		private readonly ILogger<UpdateFitmentHtml> _logger;
		private readonly ShopifyClient _shopifyClient;
		private readonly PartSourceContext _partSourceContext;
		private readonly FitmentContext _fitmentContext;
		private readonly VehicleService _vehicleService;

		public UpdateFitmentHtml(ILogger<UpdateFitmentHtml> logger, PartSourceContext partSourceContext, FitmentContext fitmentContext, ShopifyClient shopifyClient, VehicleService vehicleService)
		{
			_logger = logger;
			_partSourceContext = partSourceContext;
			_fitmentContext = fitmentContext;
			_shopifyClient = shopifyClient;
			_vehicleService = vehicleService;
		}

		public async Task Run()
		{

			IEnumerable<Product> products = null;

			try
			{
				products = await _shopifyClient.Products.Get(new Dictionary<string, object> { { "limit", 250 }, { "vendor", "FRAM" } });
			}

			catch (Exception ex)
			{
				_logger.LogError("Failed to get products from Shopify", ex);
				throw;
			}

			int i = 1;

			while (products != null && products.Any())
			{
				foreach (Product product in products)
				{
					ImportData importData = null;

					try
					{
						importData = await _partSourceContext.ImportData.FirstOrDefaultAsync(parts => parts.VariantSku == product.Variants[0].Sku);

						if (importData == null)
						{
							continue;
						}

						product.BodyHtml = importData.BodyHtml;

						IList<Vehicle> vehicles = _vehicleService.GetVehiclesForPart(importData.PartNumber, importData.LineCode);

						IList<string> ymmFitment = _vehicleService.GetYmmFitment(vehicles);
						if (ymmFitment.Count > 0)
						{
							StringBuilder stringBuilder = new StringBuilder();
							stringBuilder.AppendLine("<table><tr><th colspan=\"2\">This Part Fits</th></tr>");

							foreach (string fitment in ymmFitment)
							{
								try
								{
									string[] parts = fitment.Split(' ', 2);

									stringBuilder.AppendLine($"<tr><td>{parts[1]}</td><td>{parts[0].Replace("-", ", ")}</td></tr>");
								}

								catch
								{
									// This is still a POC at this point.  Oh well...
								}
							}

							stringBuilder.AppendLine("</table>");
							
							product.BodyHtml += $"<div id=\"seoData\">{stringBuilder.ToString()}</div>";
						}

						IList<int> vehicleIdFitment = _vehicleService.GetVehicleIdFitment(vehicles);

						if (vehicleIdFitment.Count > 0)
						{
							string vehicleIdString = string.Join('-', vehicleIdFitment.Select(j => $"v{j}"));
							product.BodyHtml += $"<div id=\"vehicleIDs\" style=\"display:none;\">{vehicleIdString}</div>";
						}

						List<string> tags = new List<string>
						{
							importData.LineCode,
							importData.PartNumber,
							"zzzIsFitment=true"
						};

						product.Tags = string.Join(',', tags);

						await _shopifyClient.Products.Update(product);	
					}

					catch (Exception ex)
					{
						_logger.LogError($"Failed to updated fitment data for SKU {importData?.VariantSku} - {ex.Message}", ex);
					}
				}

				try
				{
					Console.WriteLine(i);
					products = await _shopifyClient.Products.GetNext();

					i++;
				}

				catch (Exception ex)
				{
					_logger.LogWarning(ex, "Failed to get the next set of products.  Retrying");
					products = await _shopifyClient.Products.GetPrevious();
				}
			}
		}
	}
}