using Tiobon.Core.Common.UserManager;

namespace Tiobon.Core.Common
{
    public class DbUpdate
    {
        #region 变量定义
        public string Database { get; set; }
        private string sql;
        private string whereCondition;
        private string sqlTag;
        private decimal tag;
        public decimal Tag
        {
            get { return tag; }
            set { tag = value; }
        }
        private bool isInitDefaultValue = true;
        /// <summary>
        /// 是否初始化默认字段，像：LAST_UPD_BY，LAST_UPD_DATE，LAST_UPD_PROGRAM，TAG，MODIFICATION_NUM等，默认会初始化
        /// </summary>
        public bool IsInitDefaultValue
        {
            get
            {
                return isInitDefaultValue;
            }
            set { isInitDefaultValue = value; }
        }

        private string updateProgram = string.Empty;
        public string UpdateProgram
        {
            get { return updateProgram; }
            set { updateProgram = value; }
        }
        #endregion

        #region 构造函数
        public DbUpdate(string tableName)
        {
            sql = "UPDATE {0} SET WHERE {1}";
            sql = string.Format(sql, tableName.ToUpper(), "1=1");
            sqlTag = "SELECT TAG FROM {0} WHERE {1}";
            sqlTag = string.Format(sqlTag, tableName.ToUpper(), "1=1");
        }
        public DbUpdate(string tableName, string condition)
        {
            sql = "UPDATE {0} SET WHERE {1}";
            sql = string.Format(sql, tableName.ToUpper(), condition);
            sqlTag = "SELECT TAG FROM {0} WHERE {1}";
            sqlTag = string.Format(sqlTag, tableName.ToUpper(), condition);
        }
        public DbUpdate(string tableName, string fieldName, string fieldValue)
        {
            sql = "UPDATE {0} SET WHERE {1} = N'{2}'";
            sql = string.Format(sql, tableName.ToUpper(), fieldName.ToUpper(), fieldValue);
            sqlTag = "SELECT TAG FROM {0} WHERE {1} = N'{2}'";
            sqlTag = string.Format(sqlTag, tableName.ToUpper(), fieldName.ToUpper(), fieldValue);
        }
        public DbUpdate(string tableName, string fieldName, string fieldValue, string updateProgram)
        {
            sql = "UPDATE {0} SET WHERE {1} = N'{2}'";
            sql = string.Format(sql, tableName.ToUpper(), fieldName.ToUpper(), fieldValue);
            sqlTag = "SELECT TAG FROM {0} WHERE {1} = N'{2}'";
            sqlTag = string.Format(sqlTag, tableName.ToUpper(), fieldName.ToUpper(), fieldValue);
            this.updateProgram = updateProgram;
        }
        #endregion

        #region Set
        public void Set(string fieldName, int value)
        {
            inset(fieldName.ToUpper(), Convert.ToString(value));
        }

        public void Set(string fieldName, decimal value)
        {
            inset(fieldName.ToUpper(), Convert.ToString(value));
        }

        public void Set(string fieldName, string value)
        {
            try
            {
                //if (value != null)
                if (value != null)
                {
                    value = value.Trim();
                }
                if (!string.IsNullOrEmpty(value))
                {
                    string s = "N'{0}'";
                    value = value.Replace("'", "''");
                    s = string.Format(s, value);
                    inset(fieldName.ToUpper(), s);
                }
                else
                {
                    inset(fieldName.ToUpper(), null);
                }
            }
            catch (Exception) { throw; }
        }
        public void Set(string fieldName, Guid? value)
        {
            try
            {
                string value1 = value.ToString();
                //if (value != null)
                if (value1 != null)
                {
                    value1 = value1.Trim();
                }
                if (!string.IsNullOrEmpty(value1))
                {
                    string s = "N'{0}'";
                    value1 = value1.Replace("'", "''");
                    s = string.Format(s, value1);
                    inset(fieldName.ToUpper(), s);
                }
                else
                {
                    inset(fieldName.ToUpper(), null);
                }
            }
            catch (Exception)
            {
                throw;
            }
        }

        public void Set(string fieldName, DateTime value)
        {
            if (value == DateTime.MinValue) return;
            string valTemp = string.Empty;
            valTemp = Convert.ToString(value);
            valTemp = valTemp.Replace("'", "''");
            string s = string.Empty;
            s = "CAST('{0}' AS DATETIME)";
            s = string.Format(s, valTemp);

            inset(fieldName.ToUpper(), s);
        }

        public void Set(string fieldName, DateTime? value)
        {
            if (value == null) return;
            string valTemp = string.Empty;
            valTemp = Convert.ToString(value);
            valTemp = valTemp.Replace("'", "''");
            string s = string.Empty;
            s = "CAST('{0}' AS DATETIME)";
            s = string.Format(s, valTemp);

            inset(fieldName.ToUpper(), s);
        }
        /// <summary>
        /// 设置计算类型的更新，如SetCompute("TAG","TAG+1")
        /// </summary>
        /// <param name="fieldName"></param>
        /// <param name="val"></param>
        public void SetCompute(string fieldName, string value)
        {
            try
            {
                if (value != null)
                {
                    value = value.Trim();
                }
                inset(fieldName.ToUpper(), value);
            }
            catch (Exception)
            {
                throw;
            }
        }

        #region 加密更新
        /// <summary>
        /// 加密保存
        /// </summary>
        /// <param name="fieldName"></param>
        /// <param name="value"></param>
        public void SetAsSecurity(string fieldName, string value)
        {
            if (string.IsNullOrEmpty(value))
            {
                Set(fieldName, value);
            }
            else
            {
                string temp = "encryptbykey(key_guid('fookey'),N'" + value + "')";
                inset(fieldName.ToUpper(), temp);
            }
        }
        /// <summary>
        /// 加密保存
        /// </summary>
        /// <param name="fieldName"></param>
        /// <param name="value"></param>
        public void SetAsSecurity(string fieldName, int value)
        {
            SetAsSecurity(fieldName, Convert.ToString(value));
        }
        /// <summary>
        /// 加密保存
        /// </summary>
        /// <param name="fieldName"></param>
        /// <param name="value"></param>
        public void SetAsSecurity(string fieldName, decimal value)
        {
            SetAsSecurity(fieldName, Convert.ToString(value));
        }
        #endregion


        #endregion

        #region Where
        public void Where(string whereCondition)
        {
            this.whereCondition += whereCondition + " AND ";
        }
        public void Where(string whereCondition, params string[] args)
        {
            this.whereCondition += string.Format(whereCondition, args) + " AND ";
        }
        public void Where(string whereCondition, DateTime fieldValue)
        {
            string tempFieldValue = Convert.ToString(fieldValue);
            tempFieldValue = tempFieldValue.Replace("'", "''");
            whereCondition = string.Format(whereCondition, "DBO.TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')");
            whereCondition = string.Format(whereCondition, tempFieldValue);
            this.whereCondition += whereCondition + " AND ";
        }
        public void Where(string whereCondition, DateTime fieldValue1, DateTime fieldValue2)
        {
            string tempFieldValue1 = Convert.ToString(fieldValue1);
            tempFieldValue1 = tempFieldValue1.Replace("'", "''");
            string tempFieldValue2 = Convert.ToString(fieldValue2);
            tempFieldValue2 = tempFieldValue2.Replace("'", "''");
            whereCondition = string.Format(whereCondition, "DBO.TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{1}','YYYY/MM/DD HH24:MI:SS')");
            whereCondition = string.Format(whereCondition, tempFieldValue1, tempFieldValue2);
            this.whereCondition += whereCondition + " AND ";
        }
        public void Where(string whereCondition, DateTime fieldValue1, DateTime fieldValue2, DateTime fieldValue3)
        {
            string tempFieldValue1 = Convert.ToString(fieldValue1);
            tempFieldValue1 = tempFieldValue1.Replace("'", "''");
            string tempFieldValue2 = Convert.ToString(fieldValue2);
            tempFieldValue2 = tempFieldValue2.Replace("'", "''");
            string tempFieldValue3 = Convert.ToString(fieldValue3);
            tempFieldValue3 = tempFieldValue3.Replace("'", "''");
            whereCondition = string.Format(whereCondition, "DBO.TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{1}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{2}','YYYY/MM/DD HH24:MI:SS')");
            whereCondition = string.Format(whereCondition, tempFieldValue1, tempFieldValue2, tempFieldValue3);
            this.whereCondition += whereCondition + " AND ";
        }
        public void Where(string whereCondition, DateTime fieldValue1, DateTime fieldValue2, DateTime fieldValue3, DateTime fieldValue4)
        {
            string tempFieldValue1 = Convert.ToString(fieldValue1);
            tempFieldValue1 = tempFieldValue1.Replace("'", "''");
            string tempFieldValue2 = Convert.ToString(fieldValue2);
            tempFieldValue2 = tempFieldValue2.Replace("'", "''");
            string tempFieldValue3 = Convert.ToString(fieldValue3);
            tempFieldValue3 = tempFieldValue3.Replace("'", "''");
            string tempFieldValue4 = Convert.ToString(fieldValue4);
            tempFieldValue4 = tempFieldValue4.Replace("'", "''");
            whereCondition = string.Format(whereCondition, "DBO.TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{1}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{2}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{3}','YYYY/MM/DD HH24:MI:SS')");
            whereCondition = string.Format(whereCondition, tempFieldValue1, tempFieldValue2, tempFieldValue3, tempFieldValue4);
            this.whereCondition += whereCondition + " AND ";
        }
        public void Where(string whereCondition, DateTime fieldValue1, DateTime fieldValue2, DateTime fieldValue3, DateTime fieldValue4, DateTime fieldValue5)
        {
            string tempFieldValue1 = Convert.ToString(fieldValue1);
            tempFieldValue1 = tempFieldValue1.Replace("'", "''");
            string tempFieldValue2 = Convert.ToString(fieldValue2);
            tempFieldValue2 = tempFieldValue2.Replace("'", "''");
            string tempFieldValue3 = Convert.ToString(fieldValue3);
            tempFieldValue3 = tempFieldValue3.Replace("'", "''");
            string tempFieldValue4 = Convert.ToString(fieldValue4);
            tempFieldValue4 = tempFieldValue4.Replace("'", "''");
            string tempFieldValue5 = Convert.ToString(fieldValue5);
            tempFieldValue5 = tempFieldValue5.Replace("'", "''");
            whereCondition = string.Format(whereCondition, "DBO.TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{1}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{2}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{3}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{4}','YYYY/MM/DD HH24:MI:SS')");
            whereCondition = string.Format(whereCondition, tempFieldValue1, tempFieldValue2, tempFieldValue3, tempFieldValue4, tempFieldValue5);
            this.whereCondition += whereCondition + " AND ";
        }
        public void Where(string whereCondition, DateTime fieldValue1, DateTime fieldValue2, DateTime fieldValue3, DateTime fieldValue4, DateTime fieldValue5, DateTime fieldValue6)
        {
            string tempFieldValue1 = Convert.ToString(fieldValue1);
            tempFieldValue1 = tempFieldValue1.Replace("'", "''");
            string tempFieldValue2 = Convert.ToString(fieldValue2);
            tempFieldValue2 = tempFieldValue2.Replace("'", "''");
            string tempFieldValue3 = Convert.ToString(fieldValue3);
            tempFieldValue3 = tempFieldValue3.Replace("'", "''");
            string tempFieldValue4 = Convert.ToString(fieldValue4);
            tempFieldValue4 = tempFieldValue4.Replace("'", "''");
            string tempFieldValue5 = Convert.ToString(fieldValue5);
            tempFieldValue5 = tempFieldValue5.Replace("'", "''");
            string tempFieldValue6 = Convert.ToString(fieldValue6);
            tempFieldValue6 = tempFieldValue6.Replace("'", "''");
            whereCondition = string.Format(whereCondition, "DBO.TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{1}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{2}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{3}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{4}','YYYY/MM/DD HH24:MI:SS')", "DBO.TO_DATE('{4}','YYYY/MM/DD HH24:MI:SS')");
            whereCondition = string.Format(whereCondition, tempFieldValue1, tempFieldValue2, tempFieldValue3, tempFieldValue4, tempFieldValue5, tempFieldValue6);
            this.whereCondition += whereCondition + " AND ";
        }
        public void Where(string fieldName, string condition, string fieldValue)
        {
            this.whereCondition += fieldName.ToUpper() + condition + "'" + fieldValue + "'" + " AND ";
        }
        public void Where(string fieldName, string condition, Guid? fieldValue)
        {
            this.whereCondition += fieldName.ToUpper() + condition + "'" + fieldValue + "'" + " AND ";
        }
        public void Where(string fieldName, string condition, Guid fieldValue)
        {
            this.whereCondition += fieldName.ToUpper() + condition + "'" + fieldValue + "'" + " AND ";
        }
        public void Where(string fieldName, string condition, decimal fieldValue)
        {
            this.whereCondition += fieldName.ToUpper() + condition + fieldValue + " AND ";
        }
        public void Where(string fieldName, string condition, DateTime fieldValue)
        {

            string tempFieldValue = Convert.ToString(fieldValue);
            tempFieldValue = tempFieldValue.Replace("'", "''");
            string tempValue = string.Empty;
            tempValue = fieldName.ToUpper() + condition + "DBO.TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')" + " AND ";
            tempValue = string.Format(tempValue, tempFieldValue);
            this.whereCondition += tempValue;
        }
        /// <summary>
        /// 对字段解密后进行比较
        /// </summary>
        /// <param name="fieldName"></param>
        /// <param name="condition"></param>
        /// <param name="fieldValue"></param>
        public void WhereSecurity(string fieldName, string condition, string fieldValue)
        {
            this.whereCondition += "cast(decryptbykey(" + fieldName.ToUpper() + ") AS NVARCHAR(256))" + condition + "'" + fieldValue + "'" + " AND ";
        }
        /// <summary>
        /// 对字段解密后进行比较
        /// </summary>
        /// <param name="fieldName"></param>
        /// <param name="condition"></param>
        /// <param name="fieldValue"></param>
        public void WhereSecurity(string fieldName, string condition, decimal fieldValue)
        {
            this.whereCondition += "cast(decryptbykey(" + fieldName.ToUpper() + ") AS NVARCHAR(256))" + condition + fieldValue + " AND ";
        }
        /// <summary>
        /// 对字段解密后进行比较
        /// </summary>
        /// <param name="fieldName"></param>
        /// <param name="condition"></param>
        /// <param name="fieldValue"></param>
        public void WhereSecurity(string fieldName, string condition, int fieldValue)
        {
            this.whereCondition += "cast(decryptbykey(" + fieldName.ToUpper() + ") AS NVARCHAR(256))" + condition + fieldValue + " AND ";
        }
        #endregion

        #region 公有函数
        /// <summary>
        /// 返回SQL语句的WHERE部分，如：DELETE_FLAG='N'
        /// </summary>
        /// <returns></returns>
        public string GetWhere()
        {
            string result;
            if (string.IsNullOrEmpty(this.whereCondition))
            {
                result = "1=1";
            }
            else
            {
                result = this.whereCondition.Substring(0, this.whereCondition.Length - 5);
            }
            return result;
        }

        /// <summary>
        /// 获取完整SQL语句
        /// </summary>
        /// <returns></returns>
        public string GetSql()
        {
            if (isInitDefaultValue == true)
            {
                InitDefaultValues();
            }
            return sql + " AND " + GetWhere();
        }
        #endregion

        #region Private Method
        private void inset(string fieldName, string value)
        {
            sql = sql.Replace("{", "{{");
            sql = sql.Replace("}", "}}");
            int n = sql.IndexOf("SET WHERE");
            if (value == null)
            {
                if (n == -1)
                {
                    n = sql.LastIndexOf(" WHERE");
                    sql = sql.Insert(n, ", {0} = NULL ");
                }
                else
                {
                    n = sql.LastIndexOf(" WHERE");
                    sql = sql.Insert(n, " {0} = NULL ");
                }
                sql = string.Format(sql, fieldName.ToUpper());
            }
            else
            {
                if (n == -1)
                {
                    n = sql.IndexOf(" WHERE");
                    sql = sql.Insert(n, ", {0} = {1} ");
                }
                else // first time
                {
                    n = sql.IndexOf(" WHERE");
                    sql = sql.Insert(n, " {0} = {1} ");
                }
                sql = string.Format(sql, fieldName.ToUpper(), value);
            }
        }
        /// <summary>
        /// 初始化Update语句默认需要更新的值
        /// </summary>
        private void InitDefaultValues()
        {
            string tempSql = sql.ToUpper();
            //try
            //{
            //    if (UserContext.Current != null)
            //    {
            //        lastUpdBy = UserContext.Current.User_Id;
            //    }
            //}
            //catch { }
            //if (tempSql.IndexOf("[LAST_UPD_BY]") == -1)
            //{
            //    Set("LAST_UPD_BY", lastUpdBy);
            //}

            var lastUpdBy = UserContext.Current.User_Id;
            Set("UpdateBy", lastUpdBy);

            if (tempSql.IndexOf("[LAST_UPD_DATE]") == -1)
            {
                Set("UpdateTime", DateTime.Now);
            }
            //if (tempSql.IndexOf("[LAST_UPD_PROGRAM]") == -1)
            //{
            //    Set("LAST_UPD_PROGRAM", updateProgram);
            //}
        }


        #endregion
    }
}