using BBWY.Client.Extensions;
using BBWYB.Client.Extensions;
using BBWYB.Client.Models;
using BBWYB.Common.Http;
using BBWYB.Common.Models;
using Microsoft.Extensions.Caching.Memory;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Text.RegularExpressions;

namespace BBWYB.Client.APIServices
{
    public class PurchaseProductAPIService : IDenpendency
    {
        private RestApiService restApiService;
        private IMemoryCache memoryCache;
        private string oneBoundKey = "t5060712539";
        private string oneBoundSecret = "20211103";

        //private string qtAppId = "BBWY2023022001";
        //private string qtAppSecret = "908e131365d5448ca651ba20ed7ddefe";

        private TimeSpan purchaseProductCacheTimeSpan;
        //private TimeSpan _1688SessionIdTimeSpan;

        //private ConcurrentDictionary<string, (Purchaser purchaser, IList<PurchaseSchemeProductSku> purchaseSchemeProductSkus)> productChaches;

        private IDictionary<string, string> _1688ProductDetailRequestHeader;

        public PurchaseProductAPIService(RestApiService restApiService, IMemoryCache memoryCache)
        {
            this.restApiService = restApiService;
            this.memoryCache = memoryCache;
            _1688ProductDetailRequestHeader = new Dictionary<string, string>()
            {
                { "Host","detail.1688.com"},
                { "User-Agent","Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.102 Safari/537.36 Edg/104.0.1293.70"},
                { "Accept","text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9"},
                { "Accept-Encoding","gzip, deflate, br"},
                { "Accept-Language","zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6"}
            };
            purchaseProductCacheTimeSpan = TimeSpan.FromDays(1);
        }

        public (Purchaser purchaser, IList<PurchaseSchemeProductSku> purchaseSchemeProductSkus)? GetProductInfo(Platform platform, string productId, string skuId, string purchaseProductId, PurchaseOrderMode priceMode, PurchaseProductAPIMode apiMode)
        {
            if (memoryCache.TryGetValue<(Purchaser, IList<PurchaseSchemeProductSku>)>($"{purchaseProductId}_{priceMode}", out var tuple))
                return tuple.Copy();

            (Purchaser purchaser, IList<PurchaseSchemeProductSku> purchaseSchemeProductSkus)? data = null;

            if (apiMode == PurchaseProductAPIMode.Spider)
            {
                data = LoadFromSpider(platform, productId, skuId, purchaseProductId, priceMode);
                if (data == null)
                    data = LoadFromOneBound(platform, productId, skuId, purchaseProductId, priceMode);
            }
            else if (apiMode == PurchaseProductAPIMode.OneBound)
            {
                data = LoadFromOneBound(platform, productId, skuId, purchaseProductId, priceMode);
                if (data == null)
                    data = LoadFromSpider(platform, productId, skuId, purchaseProductId, priceMode);
            }

            if (data != null)
            {
                try
                {
                    memoryCache.Set<(Purchaser, IList<PurchaseSchemeProductSku>)>($"{purchaseProductId}_{priceMode}", data.Value, purchaseProductCacheTimeSpan);
                }
                catch { }
            }

            return data?.Copy();
        }

        private (Purchaser purchaser, IList<PurchaseSchemeProductSku> purchaseSchemeProductSkus)? LoadFromOneBound(Platform platform, string productId, string skuId, string purchaseProductId, PurchaseOrderMode priceMode)
        {
            try
            {
                string platformStr = string.Empty;
                if (platform == Platform.阿里巴巴)
                    platformStr = "1688";

                if (string.IsNullOrEmpty(platformStr))
                    return null;

                var result = restApiService.SendRequest("https://api-gw.onebound.cn/", $"{platformStr}/item_get", $"key={oneBoundKey}&secret={oneBoundSecret}&num_iid={purchaseProductId}&lang=zh-CN&cache=no&agent={(priceMode == PurchaseOrderMode.批发 ? 0 : 1)}", null, HttpMethod.Get, paramPosition: ParamPosition.Query, enableRandomTimeStamp: true);
                if (result.StatusCode != System.Net.HttpStatusCode.OK)
                    throw new Exception($"{result.StatusCode} {result.Content}");

                var jobject = JObject.Parse(result.Content);
                var isOK = jobject.Value<string>("error_code") == "0000";
                if (isOK)
                {
                    var skuJArray = (JArray)jobject["item"]["skus"]["sku"];
                    if (skuJArray.Count == 0)
                    {
                        //errorMsg = $"商品{purchaseSchemeProduct.PurchaseProductId}缺少sku信息";
                        return null;
                    }

                    var list = skuJArray.Select(j => new PurchaseSchemeProductSku()
                    {
                        ProductId = productId,
                        SkuId = skuId,
                        PurchaseProductId = purchaseProductId,
                        Price = j.Value<decimal>("price"),
                        PurchaseSkuId = j.Value<string>("sku_id"),
                        PurchaseSkuSpecId = j.Value<string>("spec_id"),
                        Title = j.Value<string>("properties_name"),
                        Logo = GetOneBoundSkuLogo(j, (JArray)jobject["item"]["prop_imgs"]["prop_img"])
                    }).ToList();

                    var purchaserId = jobject["item"]["seller_info"].Value<string>("user_num_id");
                    var purchaserName = jobject["item"]["seller_info"].Value<string>("title");
                    if (string.IsNullOrEmpty(purchaserName))
                        purchaserName = jobject["item"]["seller_info"].Value<string>("shop_name");
                    var purchaserLocation = jobject["item"].Value<string>("location");

                    return (new Purchaser()
                    {
                        Id = purchaserId,
                        Name = purchaserName,
                        Location = purchaserLocation
                    }, list);
                }
            }
            catch { }
            {
                return null;
            }
        }

        private string GetOneBoundSkuLogo(JToken skuJToken, JArray prop_img)
        {
            if (!prop_img.HasValues)
                return "pack://application:,,,/Resources/Images/defaultItem.png";
            var properties = skuJToken.Value<string>("properties").Split(';', StringSplitOptions.RemoveEmptyEntries);
            foreach (var p in properties)
            {
                var imgJToken = prop_img.FirstOrDefault(g => g.Value<string>("properties") == p);
                if (imgJToken != null)
                    return imgJToken.Value<string>("url");
            }
            return "pack://application:,,,/Resources/Images/defaultItem.png";
        }

        private (Purchaser purchaser, IList<PurchaseSchemeProductSku> purchaseSchemeProductSkus)? LoadFromSpider(Platform platform, string productId, string skuId, string purchaseProductId, PurchaseOrderMode priceMode)
        {
            switch (platform)
            {
                case Platform.阿里巴巴:
                    return LoadFrom1688Spider(platform, productId, skuId, purchaseProductId, priceMode);
                //case Platform.拳探:
                //    return LoadFromQTSpider(platform, productId, skuId, purchaseProductId, priceMode);
            }
            return null;
        }

        private (Purchaser purchaser, IList<PurchaseSchemeProductSku> purchaseSchemeProductSkus)? LoadFrom1688Spider(Platform platform, string productId, string skuId, string purchaseProductId, PurchaseOrderMode priceMode)
        {
            //https://detail.1688.com/offer/672221374773.html?clickid=65f3772cd5d16f190ce4991414607&sessionid=3de47a0c26dcbfde4692064bd55861&sk=order

            //globalData/tempModel/sellerUserId
            //globalData/tempModel/companyName
            //data/1081181309101/data/location


            //data/1081181309582/data/pirceModel/[currentPrices]/[0]price

            try
            {
                var _1688pageResult = restApiService.SendRequest("https://detail.1688.com",
                                                            $"offer/{purchaseProductId}.html",
                                                            $"clickid={Guid.NewGuid().ToString().Md5Encrypt()}&sessionid={Guid.NewGuid().ToString().Md5Encrypt()}&sk={(priceMode == PurchaseOrderMode.批发 ? "order" : "consign")}",
                                                            _1688ProductDetailRequestHeader,
                                                            HttpMethod.Get,
                                                            httpClientName: "gzip");

                if (_1688pageResult.StatusCode != System.Net.HttpStatusCode.OK)
                    return null;

                var match = Regex.Match(_1688pageResult.Content, @"(window\.__INIT_DATA=)(.*)(\r*\n*\s*</script>)");
                if (!match.Success)
                    return null;

                var jsonStr = match.Groups[2].Value;
                var jobject = JObject.Parse(jsonStr);

                //16347413030323
                var purchaser = new Purchaser()
                {
                    Id = jobject["globalData"]["tempModel"]["sellerUserId"].ToString(),
                    Name = jobject["globalData"]["tempModel"]["companyName"].ToString(),
                    Location = jobject["data"]["1081181309101"] != null ?
                               jobject["data"]["1081181309101"]["data"]["location"].ToString() :
                               jobject["data"]["16347413030323"]["data"]["location"].ToString()
                };

                var colorsProperty = jobject["globalData"]["skuModel"]["skuProps"].FirstOrDefault(j => j.Value<int>("fid") == 3216 ||
                                                                                                       j.Value<int>("fid") == 1627207 ||
                                                                                                       j.Value<int>("fid") == 1234 ||
                                                                                                       j.Value<int>("fid") == 3151)["value"]
                                                                                  .Children()
                                                                                  .Select(j => new
                                                                                  {
                                                                                      name = j.Value<string>("name"),
                                                                                      imageUrl = j.Value<string>("imageUrl")
                                                                                  }).ToList();

                var firstPrice = jobject["data"]["1081181309582"] != null ?
                                 jobject["data"]["1081181309582"]["data"]["priceModel"]["currentPrices"][0].Value<decimal>("price") :
                                 jobject["data"]["16347413030316"]["data"]["priceModel"]["currentPrices"][0].Value<decimal>("price");

                var purchaseSchemeProductSkus = new List<PurchaseSchemeProductSku>();

                foreach (var jsku in jobject["globalData"]["skuModel"]["skuInfoMap"].Children())
                {
                    var jskuProperty = jsku as JProperty;
                    var name = jskuProperty.Name;
                    var matchName = name.Contains("&gt;") ? name.Substring(0, name.IndexOf("&gt;")) : name;
                    var value = jskuProperty.Value;

                    var skuPrice = value.Value<decimal>("price");

                    purchaseSchemeProductSkus.Add(new PurchaseSchemeProductSku()
                    {
                        ProductId = productId,
                        SkuId = skuId,
                        PurchaseProductId = purchaseProductId,
                        Price = skuPrice == 0M ? firstPrice : skuPrice,
                        Title = name,
                        PurchaseSkuId = value.Value<string>("skuId"),
                        PurchaseSkuSpecId = value.Value<string>("specId"),
                        Logo = colorsProperty.FirstOrDefault(c => c.name == matchName)?.imageUrl ?? "pack://application:,,,/Resources/Images/defaultItem.png"
                    });
                }

                return (purchaser, purchaseSchemeProductSkus);
            }
            catch
            {

                return null;
            }
        }

        //private (Purchaser purchaser, IList<PurchaseSchemeProductSku> purchaseSchemeProductSkus)? LoadFromQTSpider(Platform platform, string productId, string skuId, string purchaseProductId, PurchaseOrderMode priceMode)
        //{
        //    try
        //    {
        //        var response = quanTanProductClient.GetProductInfo(purchaseProductId, qtAppId, qtAppSecret);
        //        if (response.Status != 200)
        //            return null;
        //        return (new Purchaser()
        //        {
        //            Id = response.Data.Supplier.VenderId,
        //            Name = response.Data.Supplier.VerdenName,
        //            Location = response.Data.Supplier.Location
        //        }, response.Data.ProductSku.Select(qtsku => new PurchaseSchemeProductSku()
        //        {
        //            ProductId = productId,
        //            SkuId = skuId,
        //            PurchaseProductId = purchaseProductId,
        //            Price = qtsku.Price,
        //            Title = qtsku.Title,
        //            PurchaseSkuId = qtsku.SkuId,
        //            PurchaseSkuSpecId = string.Empty,
        //            Logo = qtsku.Logo
        //        }).ToList());
        //    }
        //    catch
        //    {
        //        return null;
        //    }
        //}
    }
}