using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.OracleClient;
using System.Linq;
using System.Reflection;
using System.Text;

namespace Transmission.SDK
{
    public class OperationDataHelper<T>
    {
        #region 方法 -> 通用表数据操作

        #region 通用表数据添加
        /// <summary>
        /// 通用表数据添加
        /// Mr.Cai 2018-1-2
        /// </summary>
        /// <param name="oracleHelper">数据库SQL执行帮助类</param>
        /// <param name="t">实体类</param>
        /// <param name="tableName">表名</param>
        /// <param name="primaryKey">主键名</param>
        /// <param name="nextval">主键自增SQL函数</param>
        /// <returns></returns>
        public static void InsertTableData(OracleHelper oracleHelper, T t, string tableName, string primaryKey, string nextval)
        {
            if (string.IsNullOrEmpty(tableName))
            {
                throw new Exception("表名不可为空！");
            }

            if (string.IsNullOrEmpty(primaryKey))
            {
                throw new Exception("表名主键名不可为空！");
            }

            if (string.IsNullOrEmpty(nextval))
            {
                throw new Exception("序列不可为空！");
            }

            try
            {
                var pros = typeof(T).GetProperties();
                string names = string.Empty;
                string values = string.Empty;
                foreach (var item in pros)
                {
                    //排除主键字段
                    if (item.Name.ToUpper() != primaryKey.ToUpper() &&
                        item.Name.ToUpper() != (primaryKey + "_Encrypt").ToUpper() &&
                        item.Name.ToUpper() != "KEYID")
                    {
                        object value = item.GetValue(t, null);

                        if (IsType(item.PropertyType, "System.String") ||
                            item.PropertyType == typeof(System.String))
                        {
                            if (value != null && !string.IsNullOrEmpty(value.ToString()))
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + "'" +
                                    value.ToString().Replace("'", " ") + "'";
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.Int16]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int32]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int64]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Double]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Decimal]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Boolean]") ||
                            item.PropertyType == typeof(System.Int16) ||
                            item.PropertyType == typeof(System.Int32) ||
                            item.PropertyType == typeof(System.Int64) ||
                            item.PropertyType == typeof(System.Double) ||
                            item.PropertyType == typeof(System.Decimal) ||
                            item.PropertyType == typeof(System.Boolean))
                        {
                            if (value != null)
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + value;
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.DateTime]") ||
                            item.PropertyType == typeof(System.DateTime))
                        {
                            if (value != null)
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") +
                                    string.Format("TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", value);
                            }
                            else
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") +
                                    string.Format("TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", DateTime.Now.ToString());
                            }
                            continue;
                        }
                    }

                }

                string _SqlString = string.Format("INSERT INTO {0}({1},{2}) VALUES({3},{4})", tableName, primaryKey, names, nextval, values);
                oracleHelper.ExcuteSql(_SqlString);
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 通用表数据修改
        /// <summary>
        /// 通用表数据修改
        /// Mr.Cai 2018-3-15
        /// </summary>
        /// <param name="oracleHelper">数据库SQL执行帮助类</param>
        /// <param name="listData">实体类集合</param>
        /// <param name="tableName">表名</param>
        /// <param name="whereName">条件名数组</param>
        public static void UpdateTableData(OracleHelper oracleHelper, List<T> listData, string tableName, string[] whereName)
        {
            if (listData == null)
            {
                throw new Exception("数据集合不可为空！");
            }

            if (whereName == null)
            {
                throw new Exception("修改条件名不可为空！");
            }

            if (string.IsNullOrEmpty(tableName))
            {
                throw new Exception("表名不可为空！");
            }

            try
            {
                string[] sqlString = new string[listData.Count];
                int index = 0;//索引
                foreach (T t in listData)
                {
                    var pros = typeof(T).GetProperties();
                    string modifiedValues = string.Empty;
                    string whereModified = string.Empty;
                    foreach (var item in pros)
                    {
                        // isPrimaryKey = true 排除主键字段
                        if (item.Name.ToUpper().Contains(("_Encrypt").ToUpper()) || item.Name.ToUpper() == "KEYID")
                        {
                            continue;
                        }

                        object value = item.GetValue(t, null);

                        if (IsType(item.PropertyType, "System.String") ||
                            item.PropertyType == typeof(System.String))
                        {
                            if (value != null && !string.IsNullOrEmpty(value.ToString()))
                            {
                                modifiedValues += (string.IsNullOrEmpty(modifiedValues) ? "" : ",") + item.Name + "=" +
                                    "'" + value.ToString().Replace("'", " ") + "'";
                                for (int i = 0; i < whereName.Length; i++)
                                {
                                    if (whereName[i].ToUpper().Equals(item.Name.ToUpper()))
                                    {
                                        whereModified += (string.IsNullOrEmpty(whereModified) ? "" : " AND ") +
                                            item.Name + "=" + "'" + value.ToString().Replace("'", " ") + "'";
                                    }
                                }
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.Int16]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int32]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int64]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Double]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Decimal]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Boolean]") ||
                            item.PropertyType == typeof(System.Int16) ||
                            item.PropertyType == typeof(System.Int32) ||
                            item.PropertyType == typeof(System.Int64) ||
                            item.PropertyType == typeof(System.Double) ||
                            item.PropertyType == typeof(System.Decimal) ||
                            item.PropertyType == typeof(System.Boolean))
                        {
                            if (value != null)
                            {
                                modifiedValues += (string.IsNullOrEmpty(modifiedValues) ? "" : ",") + item.Name + "=" + value;
                                for (int i = 0; i < whereName.Length; i++)
                                {
                                    if (whereName[i].ToUpper().Equals(item.Name.ToUpper()))
                                    {
                                        whereModified += (string.IsNullOrEmpty(whereModified) ? "" : " AND ") + item.Name + "=" + value;
                                    }
                                }
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.DateTime]") ||
                            item.PropertyType == typeof(System.DateTime))
                        {
                            if (value != null)
                            {
                                modifiedValues += (string.IsNullOrEmpty(modifiedValues) ? "" : ",") + item.Name + "=" +
                                    string.Format("TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", value);
                                for (int i = 0; i < whereName.Length; i++)
                                {
                                    if (whereName[i].ToUpper().Equals(item.Name.ToUpper()))
                                    {
                                        whereModified += (string.IsNullOrEmpty(whereModified) ? "" : " AND ") + item.Name + "=" +
                                            string.Format("TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", value);
                                    }
                                }
                            }
                            continue;
                        }
                    }

                    sqlString[index] += string.Format("UPDATE {0} SET {1} WHERE {2}", tableName, modifiedValues, whereModified);
                    index++;
                }

                oracleHelper.ExecuteSqlTran(sqlString);
            }
            catch (Exception ex)
            {
                //LogHelper.WriteServiceLog(sqlString[0]);
                throw ex;
            }
        }
        #endregion

        #region 通用表数据添加（集合）
        /// <summary>
        /// 通用表数据添加（集合）
        /// Mr.Cai 2018-3-9
        /// </summary>
        /// <param name="oracleHelper">数据库SQL执行帮助类</param>
        /// <param name="listData">实体类集合</param>
        /// <param name="tableName">表名</param>
        /// <param name="isPrimaryKey">是否使用自增主键（序列）</param>
        /// <param name="primaryKey">主键名</param>
        /// <param name="nextval">主键自增SQL函数</param>
        public static void InsertTableData(OracleHelper oracleHelper, List<T> listData, string tableName,
            bool isPrimaryKey = false, string primaryKey = "", string nextval = "")
        {
            if (listData == null)
            {
                throw new Exception("数据集合不可为空！");
            }

            if (string.IsNullOrEmpty(tableName))
            {
                throw new Exception("表名不可为空！");
            }

            if (isPrimaryKey)//不插入原来主键，使用自增主键（序列），则判断必要条件
            {
                if (string.IsNullOrEmpty(primaryKey))
                {
                    throw new Exception("表名主键名不可为空！");
                }

                if (string.IsNullOrEmpty(nextval))
                {
                    throw new Exception("序列不可为空！");
                }
            }

            try
            {
                List<string> sqlStringList = new List<string>();
                string sqlString = string.Empty;
                foreach (T t in listData)
                {
                    var pros = typeof(T).GetProperties();
                    string names = string.Empty;
                    string values = string.Empty;
                    foreach (var item in pros)
                    {
                        // isPrimaryKey = true 排除主键字段
                        if ((isPrimaryKey && item.Name.ToUpper() == primaryKey.ToUpper()) ||
                            item.Name.ToUpper().Contains((primaryKey + "_Encrypt").ToUpper()) ||
                            item.Name.ToUpper() == "KEYID")
                        {
                            continue;
                        }

                        object value = item.GetValue(t, null);

                        if (IsType(item.PropertyType, "System.String") ||
                            item.PropertyType == typeof(System.String))
                        {
                            if (value != null && !string.IsNullOrEmpty(value.ToString()))
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + "'" + value.ToString().Replace("'", " ") + "'";
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.Int16]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int32]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int64]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Double]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Decimal]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Boolean]") ||
                            item.PropertyType == typeof(System.Int16) ||
                            item.PropertyType == typeof(System.Int32) ||
                            item.PropertyType == typeof(System.Int64) ||
                            item.PropertyType == typeof(System.Double) ||
                            item.PropertyType == typeof(System.Decimal) ||
                            item.PropertyType == typeof(System.Boolean))
                        {
                            if (value != null)
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + value;
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.DateTime]") ||
                            item.PropertyType == typeof(System.DateTime))
                        {
                            if (value != null)
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") +
                                    string.Format("TO_DATE('{0}','YYYY/MM/DD HH24:MI:SS')", value);
                            }
                            continue;
                        }
                    }
                    if (isPrimaryKey)
                    {
                        sqlStringList.Add(string.Format("INSERT INTO {0}({1},{2}) VALUES({3},{4})", tableName, primaryKey, names, nextval, values));
                    }
                    else
                    {
                        sqlStringList.Add(string.Format("INSERT INTO {0}({1}) VALUES({2})", tableName, names, values));
                    }
                }

                if (sqlStringList != null && sqlStringList.Count > 0)
                {
                    oracleHelper.ExecuteSqlTran(sqlStringList);
                }
                else
                {
                    throw new Exception("SQL语句不可为空！");
                }
            }
            catch (Exception ex)
            {
                //LogHelper.WriteSendLog(ex.Message);
                throw ex;
            }
        }
        #endregion

        #region 通用表OracleParameter数据添加（集合）
        /// <summary>
        /// 通用表OracleParameter数据添加（集合）
        /// 注:该方式支持byte []类型数据添加，不支持Boolean、SEQ主键方式添加
        /// Mr.Cai 2018-7-19
        /// </summary>
        /// <param name="oracleHelper">数据库SQL执行帮助类</param>
        /// <param name="listData">实体类集合</param>
        /// <param name="tableName">表名</param>
        /// <param name="isPrimaryKey">是否使用自增主键（序列）</param>
        /// <param name="primaryKey">主键名</param>
        /// <param name="nextval">主键自增SQL函数</param>
        public static void InsertTableData_OracleParameter(OracleHelper oracleHelper, List<T> listData, string tableName)
        {
            if (listData == null)
            {
                throw new Exception("数据集合不可为空！");
            }

            if (string.IsNullOrEmpty(tableName))
            {
                throw new Exception("表名不可为空！");
            }

            try
            {
                //需传递插入参数的集合
                List<OracleHelper.OracleSQLInfo> OracleSQLInfos = new List<OracleHelper.OracleSQLInfo>();
                foreach (T t in listData)
                {
                    //插入语句及所有字段集合
                    OracleHelper.OracleSQLInfo oracleSQLInfo = new OracleHelper.OracleSQLInfo();
                    //所有字段集合
                    List<OracleParameter> oracleParameters = new List<OracleParameter>();
                    string sqlString = "INSERT INTO " + tableName + " ({0}) VALUES ({1})";

                    var pros = typeof(T).GetProperties();
                    string names = string.Empty;
                    string values = string.Empty;
                    foreach (var item in pros)
                    {
                        object value = item.GetValue(t, null);

                        if (IsType(item.PropertyType, "System.String") ||
                            item.PropertyType == typeof(System.String))
                        {
                            if (value != null && !string.IsNullOrEmpty(value.ToString()))
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + ":" + item.Name;
                                oracleParameters.Add(GetOracleParameter(OracleType.VarChar, item.Name, value));
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.Int16]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int32]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Int64]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Double]") ||
                            IsType(item.PropertyType, "System.Nullable`1[System.Decimal]") ||
                            item.PropertyType == typeof(System.Int16) ||
                            item.PropertyType == typeof(System.Int32) ||
                            item.PropertyType == typeof(System.Int64) ||
                            item.PropertyType == typeof(System.Double) ||
                            item.PropertyType == typeof(System.Decimal))
                        {
                            if (value != null && !string.IsNullOrEmpty(value.ToString()))
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + ":" + item.Name;
                                oracleParameters.Add(GetOracleParameter(OracleType.Number, item.Name, value));
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.Boolean]") ||
                            item.PropertyType == typeof(System.Boolean))
                        {
                            throw new Exception("ORACLE数据 不支持 Boolean，请使用Number 类型！");
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System.DateTime]") ||
                            item.PropertyType == typeof(System.DateTime))
                        {
                            if (value != null && !string.IsNullOrEmpty(value.ToString()))
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + ":" + item.Name;
                                oracleParameters.Add(GetOracleParameter(OracleType.DateTime, item.Name, value));
                            }
                            continue;
                        }

                        if (IsType(item.PropertyType, "System.Nullable`1[System..Byte[]]") ||
                            item.PropertyType == typeof(System.Byte[]))
                        {
                            if (value != null && !string.IsNullOrEmpty(value.ToString()))
                            {
                                names += (string.IsNullOrEmpty(names) ? "" : ",") + item.Name;
                                values += (string.IsNullOrEmpty(values) ? "" : ",") + ":" + item.Name;
                                oracleParameters.Add(GetOracleParameter(OracleType.Blob, item.Name, value));
                            }
                            continue;
                        }
                    }

                    if (!string.IsNullOrEmpty(names) && !string.IsNullOrEmpty(values))
                    {
                        oracleSQLInfo.sqlString = string.Format(sqlString, names, values);
                        oracleSQLInfo.sqlStringArray = oracleParameters;
                        OracleSQLInfos.Add(oracleSQLInfo);
                    }
                    else
                    {
                        throw new Exception("不可存在所有值为空的SQL数据！");
                    }
                }

                if (OracleSQLInfos != null && OracleSQLInfos.Count > 0)
                {
                    oracleHelper.ExecuteSqlTran(OracleSQLInfos);
                }
                else
                {
                    throw new Exception("SQL语句集合不可为空！");
                }
            }
            catch (Exception ex)
            {
                //LogHelper.WriteSendLog(ex.Message);
                throw ex;
            }
        }
        #endregion

        #endregion

        #region 方法 -> 类型匹配
        /// <summary>
        /// 类型匹配
        /// </summary>
        /// <param name="type">类型</param>
        /// <param name="typeName">类型名称</param>
        /// <returns></returns>
        public static bool IsType(Type type, string typeName)
        {
            if (type.ToString() == typeName)
                return true;
            if (type.ToString() == "System.Object")
                return false;
            return IsType(type.BaseType, typeName);
        }
        #endregion

        #region OracleParameter 值匹配
        public static OracleParameter GetOracleParameter(OracleType type, string name, object value)
        {
            OracleParameter oracleParameter = new OracleParameter(name, type);
            oracleParameter.Value = value;
            return oracleParameter;
        }
        #endregion
    }
}