/// File Name : Filter Kendo Grid
/// Objective: This file contains functions which create a db query on given filter string.
/// Requirement : Filed name must be as db fields name.
/// Create By: Preeti Burad

namespace GODATA.Models.FilterKendoGrid
{
    using System;


    public class FilterKendoGrid
    {
        /// <summary>
        /// This function returns expression.
        /// </summary>
        /// <param name="filterOperator">Filter operator</param>
        /// <param name="filterValue">Value on which base we have to filter</param>
        /// <returns>expression of operator and value</returns>
        public static string GetExpression(String filterOperator, string filterValue, string filterColumnName)
        {
            string op = string.Empty;
            if (filterOperator == "contains")
            {
                if (filterColumnName.Trim().ToUpper() == ("TotalTicketLifeCycleTimeSlab").ToUpper() || filterColumnName.Trim().ToUpper() == ("DefaultSlaTime").ToUpper() || filterColumnName.Trim().ToUpper() == ("Age").ToUpper() || filterColumnName.Trim().ToUpper() == ("vehicle_instalation_date").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_1").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_3").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_4").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_5").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_2").ToUpper())
                {
                    op = "like " + "'" + "%" + filterValue.Replace("'", "") + "%" + "'";
                }
                else
                {
                    if (filterValue.Trim().Contains(")") == true)
                    {
                        filterValue = filterValue.Trim().Replace(")", "");
                        op = "like trim(upper('%" + filterValue.Replace("'", "") + "%'))";
                        op = op + ")";
                    }
                    else
                    {
                        op = "like trim(upper('%" + filterValue.Replace("'", "") + "%'))";
                    }
                }
               
            }
            else if (filterOperator == "doesnotcontain")
            {
                if (filterColumnName.Trim().ToUpper() == ("TotalTicketLifeCycleTimeSlab").ToUpper() || filterColumnName.Trim().ToUpper() == ("DefaultSlaTime").ToUpper() || filterColumnName.Trim().ToUpper() == ("Age").ToUpper() || filterColumnName.Trim().ToUpper() == ("vehicle_instalation_date").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_1").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_3").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_4").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_5").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_2").ToUpper())
                {
                    op = "not like " + "'" + "%" + filterValue.Replace("'", "") + "%" + "'";
                }
                else
                {
                    op = "not like trim(upper('%" + filterValue.Replace("'", "") + "%'))";
                }
            }
            else if (filterOperator == "endswith")
            {
                if (filterColumnName.Trim().ToUpper() == ("TotalTicketLifeCycleTimeSlab").ToUpper() || filterColumnName.Trim().ToUpper() == ("DefaultSlaTime").ToUpper() || filterColumnName.Trim().ToUpper() == ("Age").ToUpper() || filterColumnName.Trim().ToUpper() == ("vehicle_instalation_date").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_1").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_3").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_4").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_5").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_2").ToUpper())
                {
                    op = "like " + "'" + "%" + filterValue.Replace("'", "") + "'";
                }
                else
                {
                    op = "like trim(upper('%" + filterValue.Replace("'", "") + "'))";
                }
            }
            else if (filterOperator == "startswith")
            {
                if (filterColumnName.Trim().ToUpper() == ("TotalTicketLifeCycleTimeSlab").ToUpper() || filterColumnName.Trim().ToUpper() == ("DefaultSlaTime").ToUpper() || filterColumnName.Trim().ToUpper() == ("Age").ToUpper() || filterColumnName.Trim().ToUpper() == ("vehicle_instalation_date").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_1").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_3").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_4").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_5").ToUpper() || filterColumnName.Trim().ToUpper() == ("time_stamps_status_2").ToUpper())
                {
                    op = "like" + "'" + filterValue.Replace("'", "") + "%" + "'";
                }
                else
                {
                    op = "like trim(upper('" + filterValue.Replace("'", "") + "%'))";
                }
            }

            if (filterOperator == "eq")
            {
                op = "=" + filterValue;
            }
            else if (filterOperator == "neq")
            {
                op = "<>" + filterValue;
            }
            else if (filterOperator == "lt")
            {
                op = "<" + filterValue;
            }
            else if (filterOperator == "lte")
            {
                op = "<=" + filterValue;
            }
            else if (filterOperator == "gt")
            {
                op = ">" + filterValue;
            }
            else if (filterOperator == "gte")
            {
                op = ">=" + filterValue;
            }
            else { }
            return op;
        }
        /// <summary>
        /// This function Create a query on given filter data.
        /// </summary>
        /// <param name="objFilter">Filter data on which we want to create db query.</param>
        /// <returns>Query in string form.</returns>
        /// <summary>
        /// This function Create a query on given filter data.
        /// </summary>
        /// <param name="objFilter">Filter data on which we want to create db query.</param>
        /// <returns>Query in string form.</returns>
        public static string CreateFilterQuery(string objFilter)
        {
            string query = null;
            // split Filter data into array.
            var filterArr = objFilter.Split('~');
            // Length of filter string array
            int len = filterArr.Length;
            int i = 0;
            // creating query (Field name, operator, value)
            while (i < len)
            {
                //if (filterArr[i].Trim().ToUpper() == ("creation_time").ToUpper())
                //{
                //    query += filterArr[i] + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], Convert.ToDateTime(filterArr[i + 2].Replace("datetime", String.Empty)).ToString("yyyy-MM-dd hh:mm:ss"));
                //}
                //else 
                if (filterArr[i].Trim().ToUpper() == ("TotalTicketLifeCycleTimeSlab").ToUpper() || filterArr[i].Trim().ToUpper() == ("DefaultSlaTime").ToUpper() || filterArr[i].Trim().ToUpper() == ("Age").ToUpper() || filterArr[i].Trim().ToUpper() == ("vehicle_instalation_date").ToUpper() || filterArr[i].Trim().ToUpper() == ("time_stamps_status_1").ToUpper() || filterArr[i].Trim().ToUpper() == ("time_stamps_status_3").ToUpper() || filterArr[i].Trim().ToUpper() == ("time_stamps_status_4").ToUpper() || filterArr[i].Trim().ToUpper() == ("time_stamps_status_5").ToUpper() || filterArr[i].Trim().ToUpper() == ("time_stamps_status_2").ToUpper())
                {
                    query += filterArr[i] + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], filterArr[i + 2], filterArr[i]);
                }
                else
                {

                    if (filterArr[i + 1] == "contains" || filterArr[i + 1] == "doesnotcontain" || filterArr[i + 1] == "endswith" || filterArr[i + 1] == "startswith")
                    {

                        if (filterArr[i] == "(ticketid_alias)")
                        {

                            query += "(";

                        }


                        query += "trim(upper(" + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], filterArr[i + 2], filterArr[i]);


                    }



                    else
                    {
                        if (filterArr[i] == "(vehicle_emission_norms)")
                        {

                            query += "(";
                        }


                        if (filterArr[i] == "(VehicleTagging)")
                        {

                            query += "(";
                        }
                        if (filterArr[i] == "(DealerDealerName)")
                        {

                            query += "(";
                        }
                        query += "trim(upper(" + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], "trim(upper(" + filterArr[i + 2] + "))", filterArr[i]);
                    }
                }

                i += 3;
                if (i < len - 1)
                {
                    query += ' ' + filterArr[i] + ' ';
                    i++;
                }
            }
            return query;
        }


        /// <summary>
        /// This function Create a query on given filter data.
        /// </summary>
        /// <param name="objFilter">Filter data on which we want to create db query.</param>
        /// <returns>Query in string form.</returns>
        public static string CreateFilterQueryEscalation(string objFilter)
        {
            string query = null;
            // split Filter data into array.
            var filterArr = objFilter.Split('~');
            // Length of filter string array
            int len = filterArr.Length;
            int i = 0;
            // creating query (Field name, operator, value)
            while (i < len)
            {
                //if (filterArr[i].Trim().ToUpper() == ("creation_time").ToUpper())
                //{
                //    query += filterArr[i] + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], Convert.ToDateTime(filterArr[i + 2].Replace("datetime", String.Empty)).ToString("yyyy-MM-dd hh:mm:ss"));
                //}
                //else 
                if (filterArr[i].Trim().ToUpper() == ("alarm_age").ToUpper() || filterArr[i].Trim().ToUpper() == ("alarm_age_sla_not_met").ToUpper() || filterArr[i].Trim().ToUpper() == ("alarm_age_ticket_not_closed").ToUpper() || filterArr[i].Trim().ToUpper() == ("alarm_age_van_not_live").ToUpper() || filterArr[i].Trim().ToUpper() == ("alarm_age_eicher_promise_48hrs").ToUpper())
                {
                    query += "alarm_escalation_escalationlevel." + filterArr[i] + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], filterArr[i + 2], filterArr[i]);
                }
                else if (filterArr[i].Trim().ToUpper() == ("dealer_name_id").ToUpper())
                {
                    filterArr[i] = "dealer_name";
                    if (filterArr[i + 1] == "contains" || filterArr[i + 1] == "doesnotcontain" || filterArr[i + 1] == "endswith" || filterArr[i + 1] == "startswith")
                    {
                        query += "trim(upper(alarm_escalation_escalationlevel." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], filterArr[i + 2], filterArr[i]);
                    }
                    else
                    {
                        query += "trim(upper(alarm_escalation_escalationlevel." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], "trim(upper(" + filterArr[i + 2] + "))", filterArr[i]);
                    }
                }
                else if (filterArr[i].Trim().ToUpper() == ("dealer_name").ToUpper())
                {
                    if (filterArr[i + 1] == "contains" || filterArr[i + 1] == "doesnotcontain" || filterArr[i + 1] == "endswith" || filterArr[i + 1] == "startswith")
                    {
                        query += "trim(upper(_dealer." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], filterArr[i + 2], filterArr[i]);
                    }
                    else
                    {
                        query += "trim(upper(_dealer." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], "trim(upper(" + filterArr[i + 2] + "))", filterArr[i]);
                    }
                }
                else if (filterArr[i].Trim().ToUpper() == ("organization_name").ToUpper())
                {
                    if (filterArr[i + 1] == "contains" || filterArr[i + 1] == "doesnotcontain" || filterArr[i + 1] == "endswith" || filterArr[i + 1] == "startswith")
                    {
                        query += "trim(upper(organization_organization." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], filterArr[i + 2], filterArr[i]);
                    }
                    else
                    {
                        query += "trim(upper(organization_organization." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], "trim(upper(" + filterArr[i + 2] + "))", filterArr[i]);
                    }
                }
                else
                {
                    if (filterArr[i + 1] == "contains" || filterArr[i + 1] == "doesnotcontain" || filterArr[i + 1] == "endswith" || filterArr[i + 1] == "startswith")
                    {
                        query += "trim(upper(alarm_escalation_escalationlevel." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], filterArr[i + 2], filterArr[i]);
                    }
                    else
                    {
                        query += "trim(upper(alarm_escalation_escalationlevel." + filterArr[i] + "))" + ' ' + FilterKendoGrid.GetExpression(filterArr[i + 1], "trim(upper(" + filterArr[i + 2] + "))", filterArr[i]);
                    }
                }
                i += 3;
                if (i < len - 1)
                {
                    query += ' ' + filterArr[i] + ' ';
                    i++;
                }
            }
            return query;
        }
    }
}