using System.Runtime.Serialization;
using System.Web.Script.Serialization;
using System.Xml.Serialization;
using NewLife.Data;
using XCode;
using XCode.Shards;

namespace IoT.Data;

public partial class DeviceData : Entity<DeviceData>
{
    #region 对象操作
    static DeviceData()
    {
        Meta.Table.DataTable.InsertOnly = true;

        // 按天分表
        Meta.ShardPolicy = new TimeShardPolicy(nameof(Id), Meta.Factory)
        {
            TablePolicy = "{0}_{1:yyyyMMdd}",
            Step = TimeSpan.FromDays(1),
        };

        // 过滤器 UserInterceptor、TimeInterceptor、IPInterceptor
        Meta.Interceptors.Add<TimeInterceptor>();
        Meta.Interceptors.Add<IPInterceptor>();
        Meta.Interceptors.Add<TraceInterceptor>();
    }

    /// <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
        //if (isNew && !Dirtys[nameof(CreateTime)]) CreateTime = DateTime.Now;
        //if (isNew && !Dirtys[nameof(CreateIP)]) CreateIP = ManageProvider.UserHost;
    }

    ///// <summary>首次连接数据库时初始化数据，仅用于实体类重载，用户不应该调用该方法</summary>
    //[EditorBrowsable(EditorBrowsableState.Never)]
    //protected override void InitData()
    //{
    //    // InitData一般用于当数据表没有数据时添加一些默认数据，该实体类的任何第一次数据库操作都会触发该方法，默认异步调用
    //    if (Meta.Session.Count > 0) return;

    //    if (XTrace.Debug) XTrace.WriteLine("开始初始化DeviceData[设备数据]数据……");

    //    var entity = new DeviceData();
    //    entity.Id = 0;
    //    entity.DeviceId = 0;
    //    entity.Name = "abc";
    //    entity.Kind = "abc";
    //    entity.Value = "abc";
    //    entity.Timestamp = 0;
    //    entity.TraceId = "abc";
    //    entity.Creator = "abc";
    //    entity.CreateTime = DateTime.Now;
    //    entity.CreateIP = "abc";
    //    entity.Insert();

    //    if (XTrace.Debug) XTrace.WriteLine("完成初始化DeviceData[设备数据]数据！");
    //}

    ///// <summary>已重载。基类先调用Valid(true)验证数据，然后在事务保护内调用OnInsert</summary>
    ///// <returns></returns>
    //public override Int32 Insert()
    //{
    //    return base.Insert();
    //}

    ///// <summary>已重载。在事务保护范围内处理业务，位于Valid之后</summary>
    ///// <returns></returns>
    //protected override Int32 OnDelete()
    //{
    //    return base.OnDelete();
    //}
    #endregion

    #region 扩展属性
    /// <summary>设备</summary>
    [XmlIgnore, IgnoreDataMember, ScriptIgnore]
    public Device Device => Extends.Get(nameof(Device), k => Device.FindById(DeviceId));

    /// <summary>设备</summary>
    [Map(nameof(DeviceId), typeof(Device), "Id")]
    public String DeviceName => Device?.Name;
    #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 DeviceData FindById(Int64 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>根据设备、编号查找</summary>
    /// <param name="deviceId">设备</param>
    /// <param name="id">编号</param>
    /// <returns>实体列表</returns>
    public static IList<DeviceData> FindAllByDeviceIdAndId(Int32 deviceId, Int64 id)
    {
        // 实体缓存
        if (Meta.Session.Count < 1000) return Meta.Cache.FindAll(e => e.DeviceId == deviceId && e.Id == id);

        return FindAll(_.DeviceId == deviceId & _.Id == id);
    }

    /// <summary>根据设备查找</summary>
    /// <param name="deviceId">设备</param>
    /// <returns>实体列表</returns>
    public static IList<DeviceData> FindAllByDeviceId(Int32 deviceId)
    {
        if (deviceId <= 0) return new List<DeviceData>();

        // 实体缓存
        if (Meta.Session.Count < 1000) return Meta.Cache.FindAll(e => e.DeviceId == deviceId);

        return FindAll(_.DeviceId == deviceId);
    }

    /// <summary>根据设备、名称查找</summary>
    /// <param name="deviceId">设备</param>
    /// <param name="name">名称</param>
    /// <returns>实体列表</returns>
    public static IList<DeviceData> FindAllByDeviceIdAndName(Int32 deviceId, String name)
    {
        // 实体缓存
        if (Meta.Session.Count < 1000) return Meta.Cache.FindAll(e => e.DeviceId == deviceId && e.Name.EqualIgnoreCase(name));

        return FindAll(_.DeviceId == deviceId & _.Name == name);
    }

    /// <summary>根据设备、类型查找</summary>
    /// <param name="deviceId">设备</param>
    /// <param name="kind">类型</param>
    /// <returns>实体列表</returns>
    public static IList<DeviceData> FindAllByDeviceIdAndKind(Int32 deviceId, String kind)
    {
        // 实体缓存
        if (Meta.Session.Count < 1000) return Meta.Cache.FindAll(e => e.DeviceId == deviceId && e.Kind.EqualIgnoreCase(kind));

        return FindAll(_.DeviceId == deviceId & _.Kind == kind);
    }
    #endregion

    #region 高级查询
    /// <summary>高级查询</summary>
    /// <param name="deviceId">设备</param>
    /// <param name="name">名称。MQTT的Topic，或者属性名</param>
    /// <param name="start">创建时间开始</param>
    /// <param name="end">创建时间结束</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<DeviceData> Search(Int32 deviceId, String name, DateTime start, DateTime end, String key, PageParameter page)
    {
        var exp = new WhereExpression();

        if (deviceId >= 0) exp &= _.DeviceId == deviceId;
        if (!name.IsNullOrEmpty()) exp &= _.Name == name;
        exp &= _.Id.Between(start, end, Meta.Factory.Snow);
        if (!key.IsNullOrEmpty()) exp &= SearchWhereByKeys(key);

        return FindAll(exp, page);
    }

    // Select Count(Id) as Id,Category From DeviceData Where CreateTime>'2020-01-24 00:00:00' Group By Category Order By Id Desc limit 20
    //static readonly FieldCache<DeviceData> _CategoryCache = new FieldCache<DeviceData>(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
}