using System;
using System.Collections.Generic;
using System.Linq;
using CB.Cache;
using CB.Common;
using CB.Entity;

namespace CB.Data
{
    public partial class Caches
    {
        //FCSSQ
        /// <summary>
        /// 双色球开奖信息列表
        /// </summary>
        /// <returns></returns>
        public static IList<FCSSQInfo> GetFCSSQList()
        {
            var cache = CBCache.GetCacheService();
            IList<FCSSQInfo> list = cache.GetObject(CacheKeys.FCSSQList) as IList<FCSSQInfo>;
            if (null == list)
            {
                list = FCSSQService.ToList();
                cache.AddObject(CacheKeys.FCSSQList, list);
            }
            return list;
        }

        /// <summary>
        /// 双色球开奖信息列表前多少行
        /// </summary>
        /// <param name="topSize">top行(没有值默认传0)</param>
        /// <param name="term">期数(没有值默认传0)</param>
        /// <param name="year">年份(没有值默认传0)</param>
        /// <returns></returns>
        public static List<FCSSQInfo> GetFCSSQList(int topSize, int term, int year)
        {
	        IList<FCSSQInfo> list = GetFCSSQList();
            if (null == list || 0 >= list.Count)
                return null;
            List<FCSSQInfo> result = new List<FCSSQInfo>();
            if (topSize > 0)
            {
                int n = topSize > list.Count ? 0 : list.Count - topSize;
	            for (int i = list.Count - 1;  i >= n; i--)
	            {
		            if (0 <= list[i].OpenCode1) result.Add(list[i]);
                    //如果没有开奖号的情况就忽略该行数据,并多循环一次到topSize行
                    else if (n > 0) n--;
	            }
            }
            else if (term > 0)
            {
                FCSSQInfo info = list.FirstOrDefault(x => x.Term == term && 0 <= x.OpenCode1);
                if (info != null) result.Add(info);
            }
            else if (year > 0)
                result = list.ToList().FindAll(x => x.Term >= year * 1000 + 1 && x.Term < (year + 1) * 1000 && 0 <= x.OpenCode1);
            return result;
        }

        /// <summary>
        /// 返回双色球近topSize条开机号、试机号、开奖号列表
        /// </summary>
        /// <param name="topSize">查询记录数</param>
        /// <param name="openCodeType">号码类型</param>
        /// <returns></returns>
        public static IList<FCSSQInfo> GetFCSSQList(int topSize, OpenCodeType openCodeType = OpenCodeType.KaiJiangHao)
        {
            if (0 >= topSize)
                return null;

            var list = GetFCSSQList();
            if (null == list || 0 >= list.Count)
                return null;

            IList<FCSSQInfo> r = new List<FCSSQInfo>();
            int n = topSize > list.Count ? list.Count : topSize;
            for (int i = list.Count - 1; i >= 0; i--)
            {
                if (0 == n) { break; }
                if (openCodeType == OpenCodeType.KaiJiHao && !string.IsNullOrEmpty(list[i].KaiJiHao) && -1 == list[i].KaiJiHao.IndexOf("-1"))
                { r.Add(list[i]); n--; continue; }
                if (openCodeType == OpenCodeType.ShiJiHao && !string.IsNullOrEmpty(list[i].ShiJiHao) && -1 == list[i].ShiJiHao.IndexOf("-1"))
                { r.Add(list[i]); n--; continue; }
                if (openCodeType == OpenCodeType.KaiJiangHao && 1 <= list[i].OpenCode1)
                { r.Add(list[i]); n--; continue; }
            }
            return r;
        }

        /// <summary>
        /// 根据期数获取双色球开奖明细
        /// term=0时，读取最新一期开奖明细;
        /// term=0时并不一定包含开奖号数据，有可能只有开机号数据
        /// </summary>
        /// <param name="term">查询期数</param>
        /// <param name="openCodeType">查询开奖数据类型；term=0时,此参数有效</param>
        /// <returns>开奖数据</returns>
        public static FCSSQInfo GetFCSSQInfo(long term, OpenCodeType openCodeType = OpenCodeType.Normal)
        {
            var list = GetFCSSQList();
            if (null == list || 0 >= list.Count)
                return null;

            FCSSQInfo entity = null;
            if (0 == term)
            {
                entity = list[list.Count - 1];
                if (openCodeType == OpenCodeType.Normal)
                    return entity;

                if (openCodeType == OpenCodeType.KaiJiHao && !string.IsNullOrEmpty(entity.KaiJiHao) && -1 == entity.KaiJiHao.IndexOf("-1"))
                    return entity;

                if (openCodeType == OpenCodeType.ShiJiHao && !string.IsNullOrEmpty(entity.ShiJiHao) && -1 == entity.ShiJiHao.IndexOf("-1"))
                    return entity;

                if (openCodeType == OpenCodeType.KaiJiangHao && 1 <= entity.OpenCode1)
                    return entity;

                for (int i = list.Count - 2; i >= 0; i--)
                {
                    entity = list[i];
                    if (openCodeType == OpenCodeType.KaiJiHao && !string.IsNullOrEmpty(entity.KaiJiHao) && -1 == entity.KaiJiHao.IndexOf("-1"))
                        return entity;

                    if (openCodeType == OpenCodeType.ShiJiHao && !string.IsNullOrEmpty(entity.ShiJiHao) && -1 == entity.ShiJiHao.IndexOf("-1"))
                        return entity;

                    if (openCodeType == OpenCodeType.KaiJiangHao && 1 <= entity.OpenCode1)
                        return entity;
                }
                return null;
            }

            foreach (var item in list)
            {
                if (term == item.Term)
                {
                    entity = item; break;
                }
            }
            return entity;
        }
    }
}