using AllBase;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Work.Api
{
    public class FromTitleToCatTaobao
    {
        /// <summary>
        /// 用标题计算分类
        /// </summary>
        /// <param name="title"></param>
        /// <returns></returns>
        public static int Get(string title, bool IsGetMoreCatid = false)
        {
            title = BaseRegex.Clear(title, @"([\d]+)");
            char[] k = "[]\\/ -+=.【】｛｝；，。,.：:;*（）()@！!&{}".ToCharArray();
            foreach (char c in k)
                title = title.Replace(c.ToString(), "");
            string[] keys = "批发,新款,特价,热卖,定制,定做,热卖,正品,包邮,正品,出售,新品,厂家,直销,自营,跨境,爆款,批发,品牌,一件,代发,清仓,直供,外贸".Split(',');
            foreach (string c in keys)
                title = title.Replace(c, "");

            if (string.IsNullOrEmpty(title) || title.Length < 2)
                return 0;
            Dictionary<int, int> cats = new Dictionary<int, int>();
            string apiUrl = "http://tcat.qixiaoke.com/taobao/keyword.php?keyword=";
            string html = GetHtml.Utf8(apiUrl + GetHtml.UrlEncodeUtf8(title));
            if (!string.IsNullOrEmpty(html))
            {
                string[] l = html.Split(',');
                foreach (string ss in l)
                {
                    if (string.IsNullOrEmpty(ss))
                        continue;
                    int s = int.Parse(ss);
                    if (cats.ContainsKey(s))
                        cats[s]++;
                    else
                        cats.Add(s, 1);
                }
                int top = 0;
                int all = 0;
                int catId = 0;
                foreach (KeyValuePair<int, int> cat in cats)
                {
                    if (top < cat.Value)
                    {
                        top = cat.Value;
                        catId = cat.Key;
                    }
                    all += cat.Value;
                }
                return catId;
            }
            int Step = 2;
            int half = title.Length / 2;
            string key1 = title.Substring(0, half);
            string key2 = title.Substring(half);
            SetCats(key1, ref cats);
            SetCats(key2, ref cats);
            int cid = GetMaxCount(ref cats, title.Length > 8 ? 4 : 16);
            if (IsGetMoreCatid && cats.Count > 5)
            {
                return cid;
            }
            else if (cats.Count > 0 && !IsGetMoreCatid)
            {
                return cid;
            }
            Step = 4;
            AddCount(ref cats);
            int four = title.Length / 4;
            if (four < 2)//没法继续细分了
                return GetMaxCount(ref cats, 4096);
            for (int i = 0; i < 4; i++)
            {
                string key = title.Substring(i * four, four);
                SetCats(key, ref cats);
            }
            cid = GetMaxCount(ref cats, title.Length > 16 ? 16 : 64);
            if (cid > 0)
                return cid;
            AddCount(ref cats);
            Step = 8;
            int eigth = title.Length / 8;
            if (eigth < 2)
                return GetMaxCount(ref cats, 4096);
            for (int i = 0; i < 8; i++)
            {
                string key = title.Substring(i * eigth, eigth);
                SetCats(key, ref cats);
            }
            return GetMaxCount(ref cats, 4096);


        }

        public static string GetCategory(string title)
        {
            if (string.IsNullOrEmpty(title)) return string.Empty;
            string name = title;
            title = BaseRegex.Clear(title, @"([\d]+)");
            char[] k = "[]\\/ -+=.【】｛｝；，。,.：:;*（）()@！!&{}".ToCharArray();
            foreach (char c in k)
                title = title.Replace(c.ToString(), "");
            string[] keys = "批发,新款,特价,热卖,定制,定做,热卖,正品,包邮,正品,出售,新品,厂家,直销,自营,跨境,爆款,批发,品牌,一件,代发,清仓,直供,外贸".Split(',');
            foreach (string c in keys)
                title = title.Replace(c, "");

            if (string.IsNullOrEmpty(title) || title.Length < 2)
                return string.Empty;
            Dictionary<int, int> cats = new Dictionary<int, int>();
            string apiUrl = "http://tcat.qixiaoke.com/taobao/keyword.php?keyword=";
            string html = GetHtml.Utf8(apiUrl + GetHtml.UrlEncodeUtf8(title));
            if (!string.IsNullOrEmpty(html))
            {
                string[] l = html.Split(',');
                foreach (string ss in l)
                {
                    if (string.IsNullOrEmpty(ss))
                        continue;
                    int s = int.Parse(ss);
                    if (cats.ContainsKey(s))
                        cats[s]++;
                    else
                        cats.Add(s, 1);
                }
                int top = 0;
                int all = 0;
                int catId = 0;
                foreach (KeyValuePair<int, int> cat in cats)
                {
                    if (top < cat.Value)
                    {
                        top = cat.Value;
                        catId = cat.Key;
                    }
                    all += cat.Value;
                }
                return name + ":" + catId;
            }
            int Step = 2;
            int half = title.Length / 2;
            string key1 = title.Substring(0, half);
            string key2 = title.Substring(half);
            SetCats(key1, ref cats);
            SetCats(key2, ref cats);
            int cid = GetMaxCount(ref cats, title.Length > 8 ? 4 : 16);
            if (cid > 0)
                return name + ":" + cid;

            Step = 4;
            AddCount(ref cats);
            int four = title.Length / 4;
            if (four < 2)//没法继续细分了
                return name + ":" + GetMaxCount(ref cats, 4096);
            for (int i = 0; i < 4; i++)
            {
                string key = title.Substring(i * four, four);
                SetCats(key, ref cats);
            }
            cid = GetMaxCount(ref cats, title.Length > 16 ? 16 : 64);
            if (cid > 0)
                return name + ":" + cid;
            AddCount(ref cats);
            Step = 8;
            int eigth = title.Length / 8;
            if (eigth < 2)
                return name + ":" + GetMaxCount(ref cats, 4096);
            for (int i = 0; i < 8; i++)
            {
                string key = title.Substring(i * eigth, eigth);
                SetCats(key, ref cats);
            }
            return name + ":" + GetMaxCount(ref cats, 4096);


        }


        /// <summary>
        /// 用标题计算分类(为了保证防止跟之前冲突 特意写个方法)
        /// </summary>
        /// <param name="title"></param>
        /// <returns></returns>
        public int GetCataryId(string title, out Dictionary<int, int> DicTbCatId)
        {
            Dictionary<int, int> DicTbCatIdTemp = new Dictionary<int, int>();
            title = BaseRegex.Clear(title, @"([\d]+)");
            char[] k = "[]\\/ -+=.【】｛｝；，。,.：:;*（）()@！!&{}".ToCharArray();
            foreach (char c in k)
                title = title.Replace(c.ToString(), "");
            string[] keys = "批发,新款,特价,热卖,定制,定做,热卖,正品,包邮,正品,出售,新品,厂家,直销,自营,跨境,爆款,批发,品牌,一件,代发,清仓,直供,外贸".Split(',');
            foreach (string c in keys)
                title = title.Replace(c, "");

            DicTbCatId = DicTbCatIdTemp;

            if (string.IsNullOrEmpty(title) || title.Length < 2)
                return 0;
            Dictionary<int, int> cats = new Dictionary<int, int>();
            string apiUrl = "http://tcat.qixiaoke.com/taobao/keyword.php?keyword=";
            string html = GetHtml.Utf8(apiUrl + GetHtml.UrlEncodeUtf8(title));
            if (!string.IsNullOrEmpty(html))
            {
                string[] l = html.Split(',');
                foreach (string ss in l)
                {
                    if (string.IsNullOrEmpty(ss))
                        continue;
                    int s = int.Parse(ss);
                    if (cats.ContainsKey(s))
                        cats[s]++;
                    else
                        cats.Add(s, 1);
                }
                int top = 0;
                int all = 0;
                int catId = 0;
                foreach (KeyValuePair<int, int> cat in cats)
                {
                    if (top < cat.Value)
                    {
                        top = cat.Value;
                        catId = cat.Key;
                    }
                    all += cat.Value;
                }
                return catId;
            }
            int Step = 2;
            int half = title.Length / 2;
            string key1 = title.Substring(0, half);
            string key2 = title.Substring(half);
            SetCats(key1, ref cats);
            SetCats(key2, ref cats);
            int cid = GetMaxCount(ref cats, title.Length > 8 ? 4 : 16);
            DicTbCatId = cats;
            if (cats.Count > 5)
            {
                return cid;
            }
            Step = 4;
            AddCount(ref cats);
            DicTbCatId = cats;
            int four = title.Length / 4;
            if (four < 2)//没法继续细分了
                return GetMaxCount(ref cats, 4096);
            for (int i = 0; i < 4; i++)
            {
                string key = title.Substring(i * four, four);
                SetCats(key, ref cats);
            }
            cid = GetMaxCount(ref cats, title.Length > 16 ? 16 : 64);
            DicTbCatId = cats;
            if (cid > 0)
                return cid;
            AddCount(ref cats);
            Step = 8;
            int eigth = title.Length / 8;
            DicTbCatId = cats;
            if (eigth < 2)
                return GetMaxCount(ref cats, 4096);
            for (int i = 0; i < 8; i++)
            {
                string key = title.Substring(i * eigth, eigth);
                SetCats(key, ref cats);
            }
            DicTbCatId = cats;
            return GetMaxCount(ref cats, 4096);


        }


        /// <summary>
        /// 根据关键词获取相关分类
        /// </summary>
        /// <param name="key"></param>
        /// <param name="cats"></param>
        public static void SetCats(string key, ref Dictionary<int, int> cats)
        {
            string apiUrl = "http://tcat.qixiaoke.com/taobao/keyword.php?keyword=";
            string html = GetHtml.Utf8(apiUrl + GetHtml.UrlEncodeUtf8(key));
            if (!string.IsNullOrEmpty(html))
            {
                string[] l = html.Split(',');
                foreach (string ss in l)
                {
                    if (string.IsNullOrEmpty(ss))
                        continue;
                    int s = int.Parse(ss);

                    if (cats.ContainsKey(s))
                        cats[s]++;
                    else
                        cats.Add(s, 1);
                }
            }
        }

        /// <summary>
        /// 根据倍数判断是否要取得准确结果
        /// </summary>
        /// <param name="cats"></param>
        /// <param name="times"></param>
        /// <returns></returns>
        public static int GetMaxCount(ref Dictionary<int, int> cats, int times)
        {
            int top = 0;
            int all = 0;
            int catId = 0;
            foreach (KeyValuePair<int, int> cat in cats)
            {
                if (top < cat.Value)
                {
                    top = cat.Value;
                    catId = cat.Key;
                }
                all += cat.Value;
            }
            if (all / times < top)
                return catId;
            return 0;
        }

        /// <summary>
        /// 权值翻倍
        /// </summary>
        /// <param name="cats"></param>
        public static void AddCount(ref Dictionary<int, int> cats)
        {
            try
            {
                foreach (KeyValuePair<int, int> cat in cats)
                {
                    cats[cat.Key] *= 2;
                }
            }
            catch
            {
            }

        }
    }
}