using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using CoreFS.CA06;
using CoreFS.SA06;
using System.Reflection;
using System.Collections;
using Infragistics.Win.UltraWinGrid;
using System.ComponentModel;
using Core.Mes.Client.Comm.Attribute;

namespace Core.Mes.Client.Comm.Tool
{
    /// <summary>
    /// 实体类帮助类
    /// </summary>
    public class EntityHelper
    {
        /// <summary>
        /// 获取实体类集合
        /// </summary>
        /// <typeparam name="T">实体类</typeparam>
        /// <param name="methodId">服务端方法ID</param>
        /// <param name="param">参数</param>
        /// <param name="ob">平台操作对象</param>
        /// <returns></returns>
        public static DataSourceList<T> GetData<T>(string methodId, object[] param, OpeBase ob)
        {
            try
            {
                DataSourceList<T> listResult = new DataSourceList<T>();

                CoreClientParam ccp = new CoreClientParam();
                ccp.ServerName = methodId.Substring(0, methodId.LastIndexOf("."));
                ccp.MethodName = methodId.Substring(methodId.LastIndexOf(".") + 1);
                ccp.ServerParams = param;
                ccp = ob.ExecuteQuery(ccp, CoreInvokeType.Internal);
                string[] strColumns = (ccp.ReturnObject as CoreReturnSortObject).getColIdx();
                string[] strColumnsEntity = ConvertColumnName(strColumns);
                ArrayList list = (ccp.ReturnObject as CoreReturnSortObject).getResult();

                Type type = typeof(T);
                Dictionary<string, PropertyInfo> propertyInfoDic = new Dictionary<string, PropertyInfo>();
                for (int j = 0; j < strColumns.Length; j++)
                {
                    string column = strColumns[j];
                    string columnEntity = strColumnsEntity[j];
                    PropertyInfo propertyInfo = type.GetProperty(columnEntity);
                    if (propertyInfo == null) continue;
                    if (propertyInfoDic.ContainsKey(column))
                    {
                        propertyInfoDic[column] = propertyInfo;
                    }
                    else
                    {
                        propertyInfoDic.Add(column, propertyInfo);
                    }
                }


                for (int i = 0; i < list.Count; i++)
                {
                    Hashtable hashtable = (Hashtable)list[i];
                    ArrayList list2 = new ArrayList();
                    T obj = (T)type.Assembly.CreateInstance(type.FullName);
                    foreach (KeyValuePair<string, PropertyInfo> propertyInfoKV in propertyInfoDic)
                    {
                        object obj2 = hashtable[propertyInfoKV.Key];
                        PropertyInfo propertyInfo = propertyInfoKV.Value;
                        if ((obj2 != null) && typeof(Hashtable).Equals(obj2.GetType()))
                        {
                            Hashtable hashtable2 = (Hashtable)obj2;
                            propertyInfo.SetValue(obj, ConvertDataType(propertyInfo.PropertyType, hashtable2["value"]), null);
                        }
                        else
                        {
                            propertyInfo.SetValue(obj, ConvertDataType(propertyInfo.PropertyType, obj2), null);
                        }
                    }
                    listResult.Add(obj);
                }

                return listResult;
            }
            catch (Exception ex) 
            {
                throw ex;
            }
            finally
            {
                
            }
        }

        private static object ConvertDataType(Type type, object objValue)
        {
            if (type == typeof(bool))
            {
                bool result;
                if (bool.TryParse(objValue.ToString(), out result))
                {
                    return result;
                }
                else
                {
                    return false;
                }
            }
            else if(type == typeof(bool?))
            {
                bool result;
                if (bool.TryParse(objValue.ToString(), out result))
                {
                    return result;
                }
                else
                {
                    return null;
                }
            }
            else if (type == typeof(int?))
            {
                if (objValue == null)
                {
                    return null;
                }
                else
                {
                    return int.Parse(objValue.ToString());
                }
            }
            else if (type == typeof(long?))
            {
                if (objValue == null)
                {
                    return null;
                }
                else
                {
                    return long.Parse(objValue.ToString());
                }
            }
            else if (type == typeof(short?))
            {
                if (objValue == null)
                {
                    return null;
                }
                else
                {
                    return short.Parse(objValue.ToString());
                }
            }
            else if (type == typeof(float?))
            {
                if (objValue == null)
                {
                    return null;
                }
                else
                {
                    return float.Parse(objValue.ToString());
                }
            }
            else if (type == typeof(double?))
            {
                if (objValue == null)
                {
                    return null;
                }
                else
                {
                    return double.Parse(objValue.ToString());
                }
            }
            else if (type == typeof(decimal?))
            {
                if (objValue == null)
                {
                    return null;
                }
                else
                {
                    return decimal.Parse(objValue.ToString());
                }
            }
            else if (type == typeof(DateTime?))
            {
                if (objValue == null)
                {
                    return null;
                }
                else
                {
                    return DateTime.Parse(objValue.ToString());
                }
            }
            else
            {
                return objValue == null ? "" : objValue.ToString();
            }
        }

        private static string[] ConvertColumnName(string[] strColumns)
        {
            string[] strs = new string[strColumns.Length];
            for (int i = 0; i < strColumns.Length; i++ )
            {
                strs[i] = GetLanguageFormat(strColumns[i], false);
            }

            return strs;
        }

        private static string GetLanguageFormat(string strName, bool isLowerBegin)
        {
            string[] strs = strName.Split('_');
            strName = "";
            for (int i = 0; i < strs.Length; i++)
            {
                if (i == 0 && isLowerBegin)
                {
                    strName += strs[i].ToLower();
                }
                else
                {
                    strName += strs[i].Substring(0, 1).ToUpper() + strs[i].Substring(1).ToLower();
                }
            }
            return strName;
        }

        /// <summary>
        /// 复制实体类数据（源数据可以为任何类型，该方法只赋值属性名称相同的属性。）
        /// </summary>
        /// <typeparam name="T">实体类</typeparam>
        /// <param name="srcObj">源对象</param>
        public static T CopyEntity<T>(object srcObj)
        {
            try
            {
                if (srcObj == null) return default(T);
                T Desobj = (T)typeof(T).Assembly.CreateInstance(typeof(T).FullName);
                PropertyInfo[] srcPropertyInfos = srcObj.GetType().GetProperties();
                foreach (PropertyInfo srcPropertyInfo in srcPropertyInfos)
                {
                    PropertyInfo DespropertyInfo = Desobj.GetType().GetProperty(srcPropertyInfo.Name);
                    if (DespropertyInfo == null) continue;
                    if (DespropertyInfo.CanWrite) 
                    {
                        DespropertyInfo.SetValue(Desobj, srcPropertyInfo.GetValue(srcObj, null), null);
                    }
                }
                return Desobj;
            }
            catch (Exception ex)
            {
                throw;
            }
        }

        /// <summary>
        /// 复制实体类数据（源数据可以为任何类型，该方法只赋值属性名称相同的属性。）
        /// </summary>
        /// <typeparam name="T">实体类</typeparam>
        /// <param name="srcObj">源对象</param>
        public static void CopyEntity<T>(object srcObj, T descObj)
        {
            try
            {
                if (srcObj == null)
                {
                    descObj = default(T);
                    return;
                }
                PropertyInfo[] srcPropertyInfos = srcObj.GetType().GetProperties();
                foreach (PropertyInfo srcPropertyInfo in srcPropertyInfos)
                {
                    PropertyInfo DespropertyInfo = descObj.GetType().GetProperty(srcPropertyInfo.Name);
                    if (DespropertyInfo == null) continue;
                    if (DespropertyInfo.CanWrite)
                    {
                        DespropertyInfo.SetValue(descObj, srcPropertyInfo.GetValue(srcObj, null), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw;
            }
        }

        /// <summary>
        /// 复制实体类集合
        /// </summary>
        /// <typeparam name="T">实体类类型</typeparam>
        /// <param name="srcObjs">数据源</param>
        /// <returns>复制结果</returns>
        public static DataSourceList<T> CopyEntitys<T>(List<T> srcObjs)
        {
            T[] objs = new T[srcObjs.Count];
            srcObjs.CopyTo(objs);
            DataSourceList<T> desObjs = new DataSourceList<T>();
            desObjs.AddRange(objs);
            return desObjs;
        }

        /// <summary>
        /// 比较实体类的内容是否完全一致
        /// </summary>
        /// <typeparam name="T">实体类类型</typeparam>
        /// <param name="obj">比较对象</param>
        /// <param name="obj2">比较对象2</param>
        /// <returns>结果</returns>
        public static bool Compare<T>(T obj, T obj2)
        {
            PropertyInfo[] propertyInfos = obj.GetType().GetProperties();
            foreach (PropertyInfo propertyInfo in propertyInfos)
            {
                if (propertyInfo.GetValue(obj, null).ToString2() != propertyInfo.GetValue(obj2, null).ToString2())
                {
                    return false;
                }
            }

            return true;
        }

        /// <summary>
        /// 根据实体类中的DescriptionAttribute特性描述，转换为Grid列标题。
        /// </summary>
        /// <typeparam name="T">实体类</typeparam>
        /// <param name="gridBand">需要转换的UltraGridBand</param>
        public static void ShowGridCaption<T>(UltraGridBand gridBand)
        {
            try
            {
                PropertyInfo[] propertyInfos = typeof(T).GetProperties();
                foreach (PropertyInfo propertyInfo in propertyInfos)
                {
                    if (gridBand.Columns.Exists(propertyInfo.Name))
                    {
                        //设置单元格为空时的值。
                        if (propertyInfo.PropertyType == typeof(string))
                        {
                            gridBand.Columns[propertyInfo.Name].Nullable = Infragistics.Win.UltraWinGrid.Nullable.EmptyString;
                        }

                        object[] desAttributes = propertyInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
                        if (desAttributes.Length > 0)
                        {
                            gridBand.Columns[propertyInfo.Name].Header.Caption = ((DescriptionAttribute)desAttributes[0]).Description;
                        }
                        object[] dataHiddenAttributes = propertyInfo.GetCustomAttributes(typeof(DataHiddenAttribute), false);
                        if (dataHiddenAttributes.Length > 0)
                        {
                            DataHiddenAttribute nullableAttribute = (DataHiddenAttribute)dataHiddenAttributes[0];
                            gridBand.Columns[propertyInfo.Name].Hidden = nullableAttribute.DataHidden;
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                throw;
            }
        }

        /// <summary>
        /// UltraGrid列是否隐藏
        /// </summary>isShow 为true隐藏，false显示
        /// <param name="ugr">UltraGrid</param>
        /// <param name="keys">隐藏列</param>
        public static void setColumnShowOrHidden(UltraGrid ugr, string[] keys, bool isShow)
        {
            if (keys == null || keys.Length == 0)
            {
                foreach (UltraGridColumn ugc in ugr.DisplayLayout.Bands[0].Columns)
                {
                    ugc.Hidden = false;
                }
            }
            else
            {
                keys.ToArray();
                foreach (UltraGridColumn ugc in ugr.DisplayLayout.Bands[0].Columns)
                {
                    if (keys.Contains(ugc.Key))
                    {
                        ugc.Hidden = isShow;
                    }
                }
            }
        }

        /// <summary>
        /// 建立实体类的关系数据
        /// </summary>
        /// <typeparam name="T">主实体类</typeparam>
        /// <typeparam name="T2">从实体类</typeparam>
        /// <param name="parentObjs">主实体类对象集合</param>
        /// <param name="childObjs">从实体类对象集合</param>
        /// <param name="parentName">关联关系属性</param>
        /// <param name="childName">关联关系属性</param>
        public static void AddEntityRelation<T, T2>(List<T> parentObjs, List<T2> childObjs, string parentName, string childName)
        {
            try
            {
                PropertyInfo parentNameProperty = typeof(T).GetProperty(parentName);
                PropertyInfo childNameProperty = typeof(T2).GetProperty(childName);
                if (parentObjs.Count == 0 || childObjs.Count == 0) return;

                PropertyInfo childCollectionProperty = null;
                foreach (PropertyInfo tempParentProperty in typeof(T).GetProperties())
                {
                    if (tempParentProperty.PropertyType.Equals(childObjs.GetType())
                        || tempParentProperty.PropertyType.Equals(childObjs.GetType().BaseType))
                    {
                        childCollectionProperty = tempParentProperty;
                    }
                }

                if (childCollectionProperty == null) return;

                foreach (T obj in parentObjs)
                {
                    List<T2> childCollection = new List<T2>();
                    for (int i = 0; i < childObjs.Count; i++)
                    {
                        T2 obj2 = childObjs[i];
                        if (parentNameProperty.GetValue(obj, null).ToString() == childNameProperty.GetValue(obj2, null).ToString())
                        {
                            childCollection.Add(obj2);
                            childObjs.Remove(obj2);
                            i--;
                        }
                    }

                    childCollectionProperty.SetValue(obj, childCollection, null);
                }
            }
            catch (Exception ex)
            {
                throw;
            }
        }

        /// <summary>
        /// 建立实体类的关系数据
        /// </summary>
        /// <typeparam name="T">主实体类</typeparam>
        /// <typeparam name="T2">从实体类</typeparam>
        /// <param name="parentObjs">主实体类对象集合</param>
        /// <param name="childObjs">从实体类对象集合</param>
        /// <param name="parentName">关联关系属性</param>
        /// <param name="childName">关联关系属性</param>
        public static void AddEntityRelation<T, T2>(List<T> parentObjs, List<T2> childObjs, string[] parentNames, string[] childNames)
        {
            try
            {

                if (parentObjs.Count == 0 || childObjs.Count == 0) return;
                if (parentNames.Length == 0 || childNames.Length == 0)
                {
                    throw new Exception("关联属性不能为空！");
                }
                if (parentNames.Length != childNames.Length)
                {
                    throw new Exception("关联属性个数不一致！");
                }

                PropertyInfo childCollectionProperty = null;
                foreach (PropertyInfo tempParentProperty in typeof(T).GetProperties())
                {
                    if (tempParentProperty.PropertyType.Equals(childObjs.GetType())
                        || tempParentProperty.PropertyType.Equals(childObjs.GetType().BaseType))
                    {
                        childCollectionProperty = tempParentProperty;
                    }
                }

                if (childCollectionProperty == null) return;

                foreach (T obj in parentObjs)
                {
                    List<T2> childCollection = new List<T2>();
                    for (int i = 0; i < childObjs.Count; i++)
                    {
                        T2 obj2 = childObjs[i];
                        bool isSame = true;
                        for (int j = 0; j < parentNames.Length; j++)
                        {
                            PropertyInfo parentNameProperty = typeof(T).GetProperty(parentNames[j]);
                            PropertyInfo childNameProperty = typeof(T2).GetProperty(childNames[j]);
                            if (parentNameProperty.GetValue(obj, null).ToString() != childNameProperty.GetValue(obj2, null).ToString())
                            {
                                isSame = false;
                                break;
                            }
                        }
                        if (isSame)
                        {
                            childCollection.Add(obj2);
                            childObjs.Remove(obj2);
                            i--;
                        }
                    }

                    childCollectionProperty.SetValue(obj, childCollection, null);
                }
            }
            catch (Exception ex)
            {
                throw;
            }
        }

        /// <summary>
        /// 验证实体类的内容
        /// </summary>
        /// <param name="obj">实体类</param>
        /// <param name="msg">输入提示消息</param>
        /// <param name="fieldName">错误字段</param>
        /// <returns>验证结果</returns>
        public static bool CheckEntity(object obj, out string msg, out string fieldName)
        {
            msg = "";
            fieldName = "";
            PropertyInfo[] propertyInfos = obj.GetType().GetProperties();
            foreach (PropertyInfo propertyInfo in propertyInfos)
            {
                object[] nullableAttributes = propertyInfo.GetCustomAttributes(typeof(NullableAttribute), false);
                object[] dataLengthAttributes = propertyInfo.GetCustomAttributes(typeof(DataLengthAttribute), false);
                object[] descAtrributes = propertyInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
                object proValue = propertyInfo.GetValue(obj, null);
                DescriptionAttribute descriptionAttribute = (DescriptionAttribute)descAtrributes[0];
                if (nullableAttributes.Length > 0 && descAtrributes.Length > 0)
                {
                    NullableAttribute nullableAttribute = (NullableAttribute)nullableAttributes[0];
                    if (nullableAttribute.Nullable == false && (proValue == null || proValue.ToString() == ""))
                    {
                        msg = descriptionAttribute.Description + "不能为空！";
                        fieldName = propertyInfo.Name;
                        return false;
                    }
                }

                //只验证字符串的长度。
                if (propertyInfo.PropertyType == typeof(string))
                {
                    if (dataLengthAttributes.Length > 0 && descAtrributes.Length > 0)
                    {
                        DataLengthAttribute dataLengthAttribute = (DataLengthAttribute)dataLengthAttributes[0];
                        int strSize = GetCharacterSize(proValue == null ? "" : proValue.ToString());
                        if (strSize > dataLengthAttribute.DataLength)
                        {
                            msg = descriptionAttribute.Description + "超出系统定义的字符长度！";
                            fieldName = propertyInfo.Name;
                            return false;
                        }
                        //if()
                    }
                }
            }

            return true;
        }

        private static int GetCharacterSize(string str)
        {
            return Encoding.Unicode.GetByteCount(str);
        }

        /// <summary>
        /// 根据属性名称获取对象中的值。
        /// </summary>
        /// <param name="obj">对象</param>
        /// <param name="propertyName">属性名称</param>
        /// <returns>返回值</returns>
        public static object GetEntityPropertyValue(object obj, string propertyName)
        {
            PropertyInfo propertyInfo = obj.GetType().GetProperty(propertyName);
            if (propertyInfo == null) return null;
            else return propertyInfo.GetValue(obj, null);
        }
    }
}