using System;
using System.Data;
using System.Data.SqlClient;
using DSWeb.Models;
using WebSqlHelper;

namespace DSWeb.EntityDA
{
    public class WorkFlowDA
    {
        private const string PARM_WORKFLOW_GID = "@gid";
        private const string PARM_WORKFLOW_NAME = "@name";
        private const string PARM_WORKFLOW_DESCRIPTION = "@description";
        private const string PARM_WORKFLOW_MODULE_ID = "@module_id";
        private const string PARM_WORKFLOW_TYPE = "@type";
        private const string PARM_WORKFLOW_CREATE_USER = "@create_user";
        private const string PARM_WORKFLOW_CREATE_TIME = "@create_time";
        private const string PARM_WORKFLOW_MODIFIED_USER = "@modified_user";
        private const string PARM_WORKFLOW_MODIFIED_TIME = "@modified_time";
        private const string PARM_WORKFLOW_STATE = "@state";
        private const string PARM_WORKFLOW_SORT = "@sort";
        private const string PARM_WORKFLOW_COMPANY_ID = "@company_id";

        //private const string PARM_WORKFLOW_REMARK = "@remark";

        private const string SQL_SELECT_WORKFLOW_BY_GID = "SELECT GID, NAME, DESCRIPTION, MODULEID, TYPE, CREATEUSER, CREATETIME, MODIFIEDUSER, MODIFIEDTIME, STATE, SORT, ISDELETE,COMPANYID FROM workflow WHERE GID = @gid";

        private const string SQL_SELECT_WORKFLOW_BY_MODULEID = "SELECT GID, NAME, DESCRIPTION, MODULEID, TYPE, CREATEUSER, CREATETIME, MODIFIEDUSER, MODIFIEDTIME, STATE, SORT, ISDELETE FROM workflow WHERE MODULEID = @module_id";

        private const string SQL_SELECT_WORKFLOW_BY_TYPE_AND_COMPANYID = "SELECT GID, NAME, DESCRIPTION, MODULEID, TYPE, CREATEUSER, CREATETIME, MODIFIEDUSER, MODIFIEDTIME, STATE, SORT, ISDELETE,COMPANYID FROM workflow WHERE TYPE = @type AND ISNULL(COMPANYID,'') = @company_id ";

        private const string SQL_INSERT_WORKFLOW = " INSERT workflow(GID, NAME, DESCRIPTION, MODULEID, TYPE, CREATEUSER, CREATETIME,STATE, SORT, ISDELETE,COMPANYID) "
                                                 + " VALUES(@gid,@name,@description,@module_id,@type,@create_user,GETDATE(),@state,@sort,0,@company_id)  ";

        private const string SQL_UPDATE_WORKFLOW = " UPDATE workflow SET NAME = @name,DESCRIPTION = @description,MODULEID = @module_id,TYPE = @type,MODIFIEDUSER = @modified_user,"
                                                 + " MODIFIEDTIME = GETDATE(),STATE = @state,SORT = @sort,COMPANYID = @company_id WHERE GID = @gid ";

        private const string SQL_SELECT_WORKFLOW_COMPANYID_AND_TYPE = " SELECT COUNT(*) FROM workflow WHERE TYPE = @type AND COMPANYID = @company_id AND ISNULL(ISDELETE,0) <> 1 ";

        private const string SQL_SELECT_WORKFLOW_COMPANYID_AND_TYPE_GID = " SELECT COUNT(*) FROM workflow WHERE TYPE = @type AND COMPANYID = @company_id AND GID <> @gid AND ISNULL(ISDELETE,0) <> 1 ";

        private const string SQL_Delete_WORKFLOW_By_GID = "delete from workflow where gid=@gid";
        private const string SQL_Update_WORKFLOW_SetDelete_By_GID = "update workflow set isdelete=1 where gid=@gid";

        #region 更新工作流信息
        /// <summary>
        /// 更新工作流信息
        /// </summary>
        /// <param name="tempWorkFlowEntity">工作流实体类</param>
        /// <returns>值1表示更新成功 值不等于1表示更新失败</returns>
        public int DeleteWorkFlowByID(string tempWorkFlowID,int iType )
        {
            int iResult = 0;

            using (SqlConnection conn = new SqlConnection(SqlHelper.ConnectionStringLocalTransaction))
            {
                SqlParameter[] updateParms = new SqlParameter[] { 
                    new SqlParameter(PARM_WORKFLOW_GID,SqlDbType.VarChar,36)
                };
                updateParms[0].Value = tempWorkFlowID;
                

                try
                {
                    if (iType == 0)
                    {   //工作流已经生效，可以设置isdelete=1
                        iResult = SqlHelper.ExecuteNonQuery(conn, CommandType.Text, SQL_Update_WORKFLOW_SetDelete_By_GID, updateParms);
                    }
                    else if (iType == 1)
                    {   //工作流没有生效，可直接删除
                        iResult = SqlHelper.ExecuteNonQuery(conn, CommandType.Text, SQL_Delete_WORKFLOW_By_GID, updateParms);
                    }
                }
                catch (Exception error)
                {
                    iResult = -1;//插入操作异常
                    throw error;
                }
            }
            return iResult;
        }
        #endregion
 
        #region 更新工作流信息
        /// <summary>
        /// 更新工作流信息
        /// </summary>
        /// <param name="tempWorkFlowEntity">工作流实体类</param>
        /// <returns>值1表示更新成功 值不等于1表示更新失败</returns>
        public int UpdateWorkFlow(WorkFlowEntity tempWorkFlowEntity)
        {
            int iResult = 0;

            using (SqlConnection conn = new SqlConnection(SqlHelper.ConnectionStringLocalTransaction))
            {
                SqlParameter[] updateParms = new SqlParameter[] { 
                    new SqlParameter(PARM_WORKFLOW_GID,SqlDbType.VarChar,36),
                    new SqlParameter(PARM_WORKFLOW_NAME,SqlDbType.VarChar,50),
                    new SqlParameter(PARM_WORKFLOW_DESCRIPTION,SqlDbType.VarChar,50),
                    new SqlParameter(PARM_WORKFLOW_MODULE_ID,SqlDbType.VarChar,36),
                    new SqlParameter(PARM_WORKFLOW_TYPE,SqlDbType.Int),
                    new SqlParameter(PARM_WORKFLOW_MODIFIED_USER,SqlDbType.VarChar,36),
                    new SqlParameter(PARM_WORKFLOW_STATE,SqlDbType.Int),
                    new SqlParameter(PARM_WORKFLOW_SORT,SqlDbType.Int),
                    new SqlParameter(PARM_WORKFLOW_COMPANY_ID,SqlDbType.VarChar,36)
                };

                updateParms[0].Value = tempWorkFlowEntity.GID;
                updateParms[1].Value = tempWorkFlowEntity.Name;
                updateParms[2].Value = tempWorkFlowEntity.Description;
                updateParms[3].Value = tempWorkFlowEntity.ModuleID;
                updateParms[4].Value = tempWorkFlowEntity.Type;
                updateParms[5].Value = tempWorkFlowEntity.ModifiedUser;
                updateParms[6].Value = tempWorkFlowEntity.State;
                updateParms[7].Value = tempWorkFlowEntity.Sort;
                updateParms[8].Value = tempWorkFlowEntity.CompanyID;

                try
                {
                    iResult = SqlHelper.ExecuteNonQuery(conn, CommandType.Text, SQL_UPDATE_WORKFLOW, updateParms);
                }
                catch (Exception error)
                {
                    iResult = -1;//插入操作异常
                    throw error;
                }
            }
            return iResult;
        }
        #endregion

        #region 插入新的工作流信息
        /// <summary>
        /// 插入新的工作流信息
        /// </summary>
        /// <param name="tempWorkFlowEntity">工作流实体类</param>
        /// <returns>值1表示插入成功 值不等于1表示插入异常</returns>
        public int InsertWorkFlow(WorkFlowEntity tempWorkFlowEntity)
        {
            int iResult = 0;

            using(SqlConnection conn = new SqlConnection(SqlHelper.ConnectionStringLocalTransaction))
            {
                SqlParameter[] insertParms = new SqlParameter[]{
                    new SqlParameter(PARM_WORKFLOW_GID,SqlDbType.VarChar,36),
                    new SqlParameter(PARM_WORKFLOW_NAME,SqlDbType.VarChar,50),
                    new SqlParameter(PARM_WORKFLOW_DESCRIPTION,SqlDbType.VarChar,50),
                    new SqlParameter(PARM_WORKFLOW_MODULE_ID,SqlDbType.VarChar,36),
                    new SqlParameter(PARM_WORKFLOW_TYPE,SqlDbType.Int),
                    new SqlParameter(PARM_WORKFLOW_CREATE_USER,SqlDbType.VarChar,36),
                    new SqlParameter(PARM_WORKFLOW_STATE,SqlDbType.Int),
                    new SqlParameter(PARM_WORKFLOW_SORT,SqlDbType.Int),
                    new SqlParameter(PARM_WORKFLOW_COMPANY_ID,SqlDbType.VarChar,36)
                };

                insertParms[0].Value = tempWorkFlowEntity.GID;
                insertParms[1].Value = tempWorkFlowEntity.Name;
                insertParms[2].Value = tempWorkFlowEntity.Description;
                insertParms[3].Value = tempWorkFlowEntity.ModuleID;
                insertParms[4].Value = tempWorkFlowEntity.Type;
                insertParms[5].Value = tempWorkFlowEntity.CreateUser;
                insertParms[6].Value = tempWorkFlowEntity.State;
                insertParms[7].Value = tempWorkFlowEntity.Sort;
                insertParms[8].Value = tempWorkFlowEntity.CompanyID;

                try
                {
                    iResult = SqlHelper.ExecuteNonQuery(conn, CommandType.Text, SQL_INSERT_WORKFLOW, insertParms);
                }
                catch (Exception error)
                {
                    iResult = -1;//插入操作异常
                    throw error;
                }
            }

            return iResult;
        }
        #endregion

        #region 验证同一分公司下是否存在相同类型的工作流
        /// <summary>
        /// 验证同一分公司下是否存在相同类型的工作流
        /// </summary>
        /// <param name="tempCompanyID">分公司GID</param>
        /// <param name="tempType">工作流类型</param>
        /// <param name="tempOperateType">验证操作类型 值1表示插入验证 值2表示更新验证</param>
        /// <param name="tempWorkFlowID">工作流GID</param>
        /// <returns>值1表示同一分公司下已经指定了此类型的工作流 值等于0表示同一分公司下不存在相同的工作流</returns>
        public int ExistSameWorkFlowInCompanyAndType(string tempCompanyID,int tempType,int tempOperateType,string tempWorkFlowID)
        {
            int iResult = 0;

            using (SqlConnection conn = new SqlConnection(SqlHelper.ConnectionStringLocalTransaction))
            {
                try
                {
                    //值1表示做插入前验证,同一分公司下只能存在一种类型的工作流,不可重复创建
                    if (tempOperateType == 1)
                    {
                        SqlParameter[] insertParms = new SqlParameter[] { 
                        new SqlParameter(PARM_WORKFLOW_COMPANY_ID,SqlDbType.VarChar,36),
                        new SqlParameter(PARM_WORKFLOW_TYPE,SqlDbType.Int)
                    };

                        insertParms[0].Value = tempCompanyID;
                        insertParms[1].Value = tempType;

                        iResult = (int)SqlHelper.ExecuteScalar(conn, CommandType.Text, SQL_SELECT_WORKFLOW_COMPANYID_AND_TYPE, insertParms);
                    }
                    else
                    {
                        SqlParameter[] updateParms = new SqlParameter[] { 
                        new SqlParameter(PARM_WORKFLOW_GID,SqlDbType.VarChar,36),
                        new SqlParameter(PARM_WORKFLOW_COMPANY_ID,SqlDbType.VarChar,36),
                        new SqlParameter(PARM_WORKFLOW_TYPE,SqlDbType.Int)
                    };

                        updateParms[0].Value = tempWorkFlowID;
                        updateParms[1].Value = tempCompanyID;
                        updateParms[2].Value = tempType;

                        iResult = (int)SqlHelper.ExecuteScalar(conn, CommandType.Text, SQL_SELECT_WORKFLOW_COMPANYID_AND_TYPE_GID, updateParms);
                    }
                }
                catch (Exception error)
                {
                    throw error;
                }
            }

            return iResult;
        }
        #endregion

        #region 根据工作流类型获取工作流信息
        /// <summary>
        /// 根据工作流类型获取工作流信息
        /// </summary>
        /// <param name="tempTypeNo">工作流类型</param>
        /// <param name="tempCompanyID">分公司GID</param>
        /// <returns>返回工作流实体类</returns>
        public WorkFlowEntity GetSingleWorkFlowByTypeNo(int tempTypeNo,string tempCompanyID)
        {
            //初始化返回变量
            WorkFlowEntity workFlowEntity = null;
            //初始化参数并赋值
            SqlParameter[] parms = new SqlParameter[] { 
                new SqlParameter(PARM_WORKFLOW_TYPE, SqlDbType.Int),
                new SqlParameter(PARM_WORKFLOW_COMPANY_ID,SqlDbType.VarChar,36)
            };  
                
            parms[0].Value = tempTypeNo;
            parms[1].Value = tempCompanyID;

            using (SqlDataReader sqlRead = SqlHelper.ExecuteReader(SqlHelper.ConnectionStringLocalTransaction, CommandType.Text, SQL_SELECT_WORKFLOW_BY_TYPE_AND_COMPANYID, parms))
            {
                try
                {
                    workFlowEntity = new WorkFlowEntity();
                    //读取字段值
                    while (sqlRead.Read())
                    {
                        if (!sqlRead.IsDBNull(0))
                        {
                            workFlowEntity.GID = sqlRead.GetString(0);
                        }
                        if (!sqlRead.IsDBNull(1))
                        {
                            workFlowEntity.Name = sqlRead.GetString(1);
                        }
                        if (!sqlRead.IsDBNull(2))
                        {
                            workFlowEntity.Description = sqlRead.GetString(2);
                        }
                        if (!sqlRead.IsDBNull(3))
                        {
                            workFlowEntity.ModuleID = sqlRead.GetString(3);
                        }
                        if (!sqlRead.IsDBNull(4))
                        {
                            workFlowEntity.Type = sqlRead.GetInt32(4);
                        }
                        if (!sqlRead.IsDBNull(5))
                        {
                            workFlowEntity.CreateUser = sqlRead.GetString(5);
                        }
                        if (!sqlRead.IsDBNull(6))
                        {
                            workFlowEntity.CreateTime = sqlRead.GetDateTime(6);
                        }
                        if (!sqlRead.IsDBNull(7))
                        {
                            workFlowEntity.ModifiedUser = sqlRead.GetString(7);
                        }
                        if (!sqlRead.IsDBNull(8))
                        {
                            workFlowEntity.ModifiedTime = sqlRead.GetDateTime(8);
                        }
                        if (!sqlRead.IsDBNull(9))
                        {
                            workFlowEntity.State = sqlRead.GetInt32(9);
                        }
                        if (!sqlRead.IsDBNull(10))
                        {
                            workFlowEntity.Sort = sqlRead.GetInt32(10);
                        }
                        if (!sqlRead.IsDBNull(11))
                        {
                            workFlowEntity.IsDelete = sqlRead.GetBoolean(11);
                        }
                        if (!sqlRead.IsDBNull(12))
                        {
                            workFlowEntity.CompanyID = sqlRead.GetString(12);
                        }
                    }
                }
                catch (Exception exceError)
                {
                    //抛出异常
                    throw exceError;
                }
            }
            return workFlowEntity;
        }
        #endregion

        public WorkFlowEntity GetSingleWorkFlow(string tempWorkFlowGID)
        {
            //初始化返回变量
            WorkFlowEntity workFlowEntity = null;
            //初始化参数并赋值
            SqlParameter parm = new SqlParameter(PARM_WORKFLOW_GID, SqlDbType.VarChar, 36);
            parm.Value = tempWorkFlowGID;

            using (SqlDataReader sqlRead = SqlHelper.ExecuteReader(SqlHelper.ConnectionStringLocalTransaction, CommandType.Text, SQL_SELECT_WORKFLOW_BY_GID, parm))
            {
                try
                {
                    workFlowEntity = new WorkFlowEntity();
                    //读取字段值
                    while (sqlRead.Read())
                    {
                        if (!sqlRead.IsDBNull(0))
                        {
                            workFlowEntity.GID = sqlRead.GetString(0);
                        }
                        if (!sqlRead.IsDBNull(1))
                        {
                            workFlowEntity.Name = sqlRead.GetString(1);
                        }
                        if (!sqlRead.IsDBNull(2))
                        {
                            workFlowEntity.Description = sqlRead.GetString(2);
                        }
                        if (!sqlRead.IsDBNull(3))
                        {
                            workFlowEntity.ModuleID = sqlRead.GetString(3);
                        }
                        if (!sqlRead.IsDBNull(4))
                        {
                            workFlowEntity.Type = sqlRead.GetInt32(4);
                        }
                        if (!sqlRead.IsDBNull(5))
                        {
                            workFlowEntity.CreateUser = sqlRead.GetString(5);
                        }
                        if (!sqlRead.IsDBNull(6))
                        {
                            workFlowEntity.CreateTime = sqlRead.GetDateTime(6);
                        }
                        if (!sqlRead.IsDBNull(7))
                        {
                            workFlowEntity.ModifiedUser = sqlRead.GetString(7);
                        }
                        if (!sqlRead.IsDBNull(8))
                        {
                            workFlowEntity.ModifiedTime = sqlRead.GetDateTime(8);
                        }
                        if (!sqlRead.IsDBNull(9))
                        {
                            workFlowEntity.State = sqlRead.GetInt32(9);
                        }
                        if (!sqlRead.IsDBNull(10))
                        {
                            workFlowEntity.Sort = sqlRead.GetInt32(10);
                        }
                        if (!sqlRead.IsDBNull(11))
                        {
                            workFlowEntity.IsDelete = sqlRead.GetBoolean(11);
                        }
                        if (!sqlRead.IsDBNull(12))
                        {
                            workFlowEntity.CompanyID = sqlRead.GetString(12);
                        }
                    }
                }
                catch (Exception exceError)
                {
                    //抛出异常
                    throw exceError;
                }
            }
            return workFlowEntity;
        }

        #region 通过SQL语句获取数据
        /// <summary>
        /// 通过SQL语句获取数据
        /// </summary>
        /// <param name="strSql">要执行查询的SQL语句</param>
        /// <returns>返回DataSet数据</returns>
        public DataSet GetDataSetBySql(string strSql)
        {
            DataSet dataSet = new DataSet();

            dataSet = SqlHelper.ExecuteDataset(SqlHelper.ConnectionStringLocalTransaction, CommandType.Text, strSql);
            return dataSet;
        }
        #endregion

        #region 根据MODULEID获取工作流信息
        /// <summary>
        /// 根据MODULEID获取工作流信息
        /// </summary>
        /// <param name="tempModuleID"></param>
        /// <returns></returns>
        public WorkFlowEntity GetSingleWorkFlowByModuleID(string tempModuleID)
        {
            //初始化返回变量
            WorkFlowEntity workFlowEntity = null;
            //初始化参数并赋值
            SqlParameter parm = new SqlParameter(PARM_WORKFLOW_MODULE_ID, SqlDbType.VarChar, 36);
            parm.Value = tempModuleID;

            using (SqlDataReader sqlRead = SqlHelper.ExecuteReader(SqlHelper.ConnectionStringLocalTransaction, CommandType.Text, SQL_SELECT_WORKFLOW_BY_MODULEID, parm))
            {
                try
                {
                    workFlowEntity = new WorkFlowEntity();
                    //读取字段值
                    while (sqlRead.Read())
                    {
                        if (!sqlRead.IsDBNull(0))
                        {
                            workFlowEntity.GID = sqlRead.GetString(0);
                        }
                        if (!sqlRead.IsDBNull(1))
                        {
                            workFlowEntity.Name = sqlRead.GetString(1);
                        }
                        if (!sqlRead.IsDBNull(2))
                        {
                            workFlowEntity.Description = sqlRead.GetString(2);
                        }
                        if (!sqlRead.IsDBNull(3))
                        {
                            workFlowEntity.ModuleID = sqlRead.GetString(3);
                        }
                        if (!sqlRead.IsDBNull(4))
                        {
                            workFlowEntity.Type = sqlRead.GetInt32(4);
                        }
                        if (!sqlRead.IsDBNull(5))
                        {
                            workFlowEntity.CreateUser = sqlRead.GetString(5);
                        }
                        if (!sqlRead.IsDBNull(6))
                        {
                            workFlowEntity.CreateTime = sqlRead.GetDateTime(6);
                        }
                        if (!sqlRead.IsDBNull(7))
                        {
                            workFlowEntity.ModifiedUser = sqlRead.GetString(7);
                        }
                        if (!sqlRead.IsDBNull(8))
                        {
                            workFlowEntity.ModifiedTime = sqlRead.GetDateTime(8);
                        }
                        if (!sqlRead.IsDBNull(9))
                        {
                            workFlowEntity.State = sqlRead.GetInt32(9);
                        }
                        if (!sqlRead.IsDBNull(10))
                        {
                            workFlowEntity.Sort = sqlRead.GetInt32(10);
                        }
                        if (!sqlRead.IsDBNull(11))
                        {
                            workFlowEntity.IsDelete = sqlRead.GetBoolean(11);
                        }

                    }
                }
                catch (Exception exceError)
                {
                    //抛出异常
                    throw exceError;
                }
            }
            return workFlowEntity;
        }
        #endregion

        #region 查看是否有相同的工作流信息
        /// <summary>
        /// 查看是否有相同的工作流信息
        /// </summary>
        /// <param name="tempType">WorkFlowCheckValueType 类型 可以检索NAME和DESCRIPTION</param>
        /// <param name="tempCheckValue">检索值</param>
        /// <param name="tempWorkFlowID">工作流GID</param>
        /// <returns>True表示有相同值 False表示没有相同值</returns>
        public bool IsExistSameValueWorkFlow(WorkFlowCheckValueType tempType,string tempCheckValue,string tempWorkFlowID)
        {
            bool IsExist = false;

            string strCheckName = "";
            switch (tempType)
            {
                case WorkFlowCheckValueType.NAME:
                    strCheckName = "NAME";
                    break;
                case WorkFlowCheckValueType.DESCRIPTION:
                    strCheckName = "DESCRIPTION";
                    break;
            }
            string strSql = String.Format("SELECT COUNT(*) FROM workflow WHERE {0} =@WKNAME {1}", strCheckName, (tempWorkFlowID.Trim().Equals("") ? "" : " AND GID <> '" + tempWorkFlowID + "' "));

            SqlParameter parm = new SqlParameter("@WKNAME", SqlDbType.VarChar, 36);
            parm.Value = tempCheckValue;

            using (SqlDataReader sqlRead = SqlHelper.ExecuteReader(SqlHelper.ConnectionStringLocalTransaction, CommandType.Text, strSql, parm))
            {
                try
                {
                    if (sqlRead.Read())
                    {
                        if (!sqlRead.IsDBNull(0))
                        {
                            if (sqlRead.GetInt32(0) > 0)
                            {
                                IsExist = true;//如果存在相同的值则返回true表示工作流表中已经有了相关信息
                            }
                        }
                    }
                }
                catch (Exception exceError)
                {
                    //抛出异常
                    throw exceError;
                }
            }

            return IsExist;
        }
        #endregion
    }

    public enum WorkFlowCheckValueType
    {
        NAME = 0,
        DESCRIPTION = 1
    }
}