using System;
using System.Collections.Generic;
using System.Web.Script.Serialization;
using System.Xml.Serialization;
using NewLife;
using NewLife.Data;
using XCode;
using XCode.Membership;

namespace Stardust.Data.Configs
{
    /// <summary>应用依赖。应用可以引用依赖另一个应用</summary>
    public partial class AppQuote : Entity<AppQuote>
    {
        #region 对象操作
        static AppQuote()
        {
            // 累加字段，生成 Update xx Set Count=Count+1234 Where xxx
            //var df = Meta.Factory.AdditionalFields;
            //df.Add(nameof(AppId));

            // 过滤器 UserModule、TimeModule、IPModule
            Meta.Modules.Add<UserModule>();
            Meta.Modules.Add<TimeModule>();
            Meta.Modules.Add<IPModule>();
        }

        /// <summary>验证并修补数据，通过抛出异常的方式提示验证失败。</summary>
        /// <param name="isNew">是否插入</param>
        public override void Valid(Boolean isNew)
        {
            // 如果没有脏数据，则不需要进行任何处理
            if (!HasDirty) return;

            // 建议先调用基类方法，基类方法会做一些统一处理
            base.Valid(isNew);

            // 在新插入数据或者修改了指定字段时进行修正
            // 处理当前已登录用户信息，可以由UserModule过滤器代劳
            /*var user = ManageProvider.User;
            if (user != null)
            {
                if (isNew && !Dirtys[nameof(CreateUserID)]) CreateUserID = user.ID;
            }*/
            //if (isNew && !Dirtys[nameof(CreateTime)]) CreateTime = DateTime.Now;
            //if (isNew && !Dirtys[nameof(CreateIP)]) CreateIP = ManageProvider.UserHost;
        }
        #endregion

        #region 扩展属性
        /// <summary>应用系统</summary>
        [XmlIgnore, ScriptIgnore]
        public AppConfig App => Extends.Get(nameof(App), k => AppConfig.FindById(AppId));

        /// <summary>应用名称</summary>
        [Map(__.AppId, typeof(AppConfig), "Id")]
        public String AppName => App + "";

        /// <summary>目标应用</summary>
        [XmlIgnore, ScriptIgnore]
        public AppConfig TargetApp => Extends.Get(nameof(TargetApp), k => AppConfig.FindById(TargetAppId));

        /// <summary>目标应用</summary>
        [Map(__.TargetAppId, typeof(AppConfig), "Id")]
        public String TargetAppName => TargetApp + "";
        #endregion

        #region 扩展查询
        /// <summary>根据编号查找</summary>
        /// <param name="id">编号</param>
        /// <returns>实体对象</returns>
        public static AppQuote FindById(Int32 id)
        {
            if (id <= 0) return null;

            // 实体缓存
            if (Meta.Session.Count < 1000) return Meta.Cache.Find(e => e.Id == id);

            // 单对象缓存
            return Meta.SingleCache[id];

            //return Find(_.Id == id);
        }

        /// <summary>根据应用查找</summary>
        /// <param name="appId">应用</param>
        /// <returns>实体列表</returns>
        public static IList<AppQuote> FindAllByAppId(Int32 appId)
        {
            // 实体缓存
            if (Meta.Session.Count < 1000) return Meta.Cache.FindAll(e => e.AppId == appId);

            return FindAll(_.AppId == appId);
        }

        /// <summary>根据目标应用查找</summary>
        /// <param name="targetAppId">目标应用</param>
        /// <returns>实体列表</returns>
        public static IList<AppQuote> FindAllByTargetAppId(Int32 targetAppId)
        {
            // 实体缓存
            if (Meta.Session.Count < 1000) return Meta.Cache.FindAll(e => e.TargetAppId == targetAppId);

            return FindAll(_.TargetAppId == targetAppId);
        }
        #endregion

        #region 高级查询
        /// <summary>高级查询</summary>
        /// <param name="appId">应用。原始应用，该应用依赖别人</param>
        /// <param name="targetAppId">目标应用。被原始应用依赖的应用</param>
        /// <param name="key">关键字</param>
        /// <param name="page">分页参数信息。可携带统计和数据权限扩展查询等信息</param>
        /// <returns>实体列表</returns>
        public static IList<AppQuote> Search(Int32 appId, Int32 targetAppId, String key, PageParameter page)
        {
            var exp = new WhereExpression();

            if (appId >= 0) exp &= _.AppId == appId;
            if (targetAppId >= 0) exp &= _.TargetAppId == targetAppId;
            if (!key.IsNullOrEmpty()) exp &= _.CreateIP.Contains(key);

            return FindAll(exp, page);
        }

        // Select Count(Id) as Id,Category From AppQuote Where CreateTime>'2020-01-24 00:00:00' Group By Category Order By Id Desc limit 20
        //static readonly FieldCache<AppQuote> _CategoryCache = new FieldCache<AppQuote>(nameof(Category))
        //{
        //Where = _.CreateTime > DateTime.Today.AddDays(-30) & Expression.Empty
        //};

        ///// <summary>获取类别列表，字段缓存10分钟，分组统计数据最多的前20种，用于魔方前台下拉选择</summary>
        ///// <returns></returns>
        //public static IDictionary<String, String> GetCategoryList() => _CategoryCache.FindAllName();
        #endregion

        #region 业务操作
        #endregion
    }
}