using Microsoft.EntityFrameworkCore;
using Newtonsoft.Json;
using PartSource.Automation.Jobs.Interfaces;
using PartSource.Automation.Models;
using PartSource.Automation.Services;
using PartSource.Data;
using PartSource.Data.Models;
using PartSource.Data.Nexpart;
using PartSource.Services;
using PartSource.Services.Integrations;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Ratermania.Shopify.Entities;

namespace PartSource.Automation.Jobs
{
	public class UpdateFitment : IAutomationJob
	{
		private readonly IServiceProvider _serviceProvider;
		private readonly ShopifyClient _shopifyClient;
		private readonly PartSourceContext _partSourceContext;
		private readonly NexpartService _nexpartService;

		private readonly VehicleService _vehicleService;

		public UpdateFitment(IServiceProvider serviceProvider, PartSourceContext partSourceContext, ShopifyClient shopifyClient, NexpartService nexpartService, VehicleService vehicleService)
		{
			_partSourceContext = partSourceContext;
			_shopifyClient = shopifyClient;
			_vehicleService = vehicleService;
		}

		public async Task<AutomationJobResult> Run()
		{
			IList<ImportData> parts = _partSourceContext.ImportData.Where(i => new[] { "Raybestos Brakes", "MotoMaster", "Pro Series OE Plus  Brake Pads" }.Contains(i.Vendor)).ToList();

			foreach (ImportData importData in parts)
			{
				try
				{
					Product product = await _shopifyClient.Products.GetById((long)importData.ShopifyId);
					if (product == null)
					{
						continue;
					}


					bool isFitment = false;

					IList<Vehicle> vehicles = _vehicleService.GetVehiclesForPart(importData.PartNumber, importData.LineCode);
					IList<int> vehicleIdFitment = _vehicleService.GetVehicleIdFitment(vehicles);
					if (vehicleIdFitment.Count > 0)
					{
						isFitment = true;

						string json = JsonConvert.SerializeObject(vehicleIdFitment);
						if (json.Length >= 100000)
						{
							continue;
						}

						Metafield vehicleMetafield = new Metafield
						{
							Namespace = "fitment",
							Key = "ids",
							Value = json,
							ValueType = "json_string",
							OwnerResource = "product",
							OwnerId = product.Id
						};

						await _shopifyClient.Metafields.Add(vehicleMetafield);
					}

					IList<string> ymmFitment = _vehicleService.GetYmmFitment(vehicles);
					if (ymmFitment.Count > 0)
					{
						isFitment = true;

						string json = JsonConvert.SerializeObject(ymmFitment);
						if (json.Length >= 100000)
						{
							continue;
						}

						Metafield ymmMetafield = new Metafield
						{
							Namespace = "fitment",
							Key = "seo",
							Value = json,
							ValueType = "json_string",
							OwnerResource = "product",
							OwnerId = product.Id
						};

						await _shopifyClient.Metafields.Add(ymmMetafield);
					}

					Metafield isFitmentMetafield = new Metafield
					{
						Namespace = "Flags",
						Key = "IsFitment",
						Value = isFitment.ToString(),
						ValueType = "string",
						OwnerResource = "product",
						OwnerId = product.Id
					};

					await _shopifyClient.Metafields.Add(isFitmentMetafield);

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

					for (int i = 0; i < vehicleIdFitment.Count; i += 25)
					{
						tags.Add(string.Join('-', vehicleIdFitment.Skip(i).Take(25).Select(i => $"v{i}")));
					}

					tags.AddRange(ymmFitment);

					if (tags.Count > 250)
					{
						tags = tags.Take(250).ToList();
					}

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

					await _shopifyClient.Products.Update(product);

				}

				catch (Exception ex)
				{
					Console.WriteLine($"{importData.VariantSku}: {ex.Message}");
				}
			}


			return new AutomationJobResult
			{
				IsSuccess = true
			};
		}

		private async Task DeleteFitmentMetafields(long shopifyId)
		{
			IDictionary<string, object> parameters = new Dictionary<string, object>
			{
				{ "metafield[owner_id]", shopifyId},
				{ "metafield[owner_resource]", "product" },
				{ "namespace", "fitment" },
			};

			IEnumerable<Metafield> metafields = await _shopifyClient.Metafields.Get(parameters);

			foreach (Metafield metafield in metafields)
			{
				await _shopifyClient.Metafields.Delete(metafield);
			}
		}

		public IList<Vehicle> GetVehicles(string partNumber, string lineCode)
		{
			partNumber = Regex.Replace(partNumber, "[^a-zA-Z0-9]", string.Empty);

			//string sql = $"select distinct BaseVehicleId, EngineConfigId from dbo.Fitment where ManufacturerCode in (select WhiCode from DcfMapping where PartSourceCode='{lineCode}') and (partNumber = '{partNumber}' or partNumber = '{partNumber.Replace("-", string.Empty)}')";
			string sql = $"with FitmentIds (BaseVehicleId, EngineConfigId) as (select distinct BaseVehicleId, EngineConfigId from dbo.Fitment where LineCode in (select WhiCode from DcfMapping where LineCode='{lineCode}') and PartNumber = '{partNumber}') select v.* from VehicleData v join FitmentIds f on v.BaseVehicleId = f.BaseVehicleId and v.EngineConfigId = f.EngineConfigId;";

#pragma warning disable EF1000 // Possible SQL injection vulnerability.
			IList<Vehicle> vehicles = _partSourceContext.Vehicles.FromSql(sql).ToList();
#pragma warning restore EF1000 // Possible SQL injection vulnerability.

			return vehicles;
		}
		private void Update()
		{

		}

	}
}