using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bnhtrade.Core.Data.Database.Account
{
    public class ReadTaxCode : Connection
    {
        private Data.Database.SqlWhereBuilder whereBuilder;

        public ReadTaxCode()
        {
            whereBuilder = new SqlWhereBuilder();
        }

        private List<Model.Account.TaxCodeInfo> Execute(string sqlWhere, Dictionary<string, object> parameters)
        {
            var resultList = new List<Model.Account.TaxCodeInfo>();

            //build sql query
            string sqlString = @"
                SELECT
                    TaxCode
                    ,TaxCodeName
                    ,TaxCodeDescription
                    ,TaxRatePercent
                    ,IsMarginScheme
                    ,IsValidOnExpense
                    ,IsVailidOnIncome
                    ,IsActive
                    ,TaxType
                FROM tblAccountTaxCode";

            sqlString += sqlWhere;

            using (SqlConnection conn = new SqlConnection(SqlConnectionString))
            {
                conn.Open();

                using (SqlCommand cmd = new SqlCommand(sqlString, conn))
                {
                    foreach (var paramter in parameters)
                    {
                        cmd.Parameters.AddWithValue(paramter.Key, paramter.Value);
                    }

                    using (SqlDataReader reader = cmd.ExecuteReader())
                    {
                        if (reader.HasRows)
                        {
                            while (reader.Read())
                            {
                                string taxCodeId = reader.GetString(0);
                                string name = reader.GetString(1);
                                string description = null;
                                if (!reader.IsDBNull(2)) { description = reader.GetString(2); }
                                decimal rate = reader.GetDecimal(3);
                                bool isMargin = reader.GetBoolean(4);
                                bool isValidOnExpense = reader.GetBoolean(5);
                                bool isValidOnIncome = reader.GetBoolean(6);
                                bool isActive = reader.GetBoolean(7);
                                string taxType = reader.GetString(8);

                                var result = new Model.Account.TaxCodeInfo(
                                    taxCodeId,
                                    name,
                                    description,
                                    rate,
                                    isMargin,
                                    isValidOnExpense,
                                    isValidOnIncome,
                                    taxType,
                                    isActive);

                                resultList.Add(result);
                            }
                        }
                    }
                }
            }
            return resultList;
        }

        public List<Model.Account.TaxCodeInfo> GetByTaxCode(List<string> taxcodeList)
        {
            var resultList = new List<Model.Account.TaxCodeInfo>();

            if (taxcodeList == null || !taxcodeList.Any())
            {
                return resultList;
            }

            taxcodeList = taxcodeList.Distinct().ToList();

            whereBuilder.Innit();
            whereBuilder.In("TaxCode", taxcodeList, "WHERE");

            return Execute(whereBuilder.SqlWhereString, whereBuilder.ParameterList);
        }

        public List<Model.Account.TaxCodeInfo> GetAllActive()
        {
            string sqlWhere = @"
                WHERE IsActive=@isActive;";
            var parameters = new Dictionary<string, object>();
            parameters.Add("@isActive", true);

            return Execute(sqlWhere, parameters);
        }

        public Dictionary<string, string> GetTaxCodeBySkuNumber(List<string> skuNumberList)
        {
            var resultList = new Dictionary<string, string>();

            if (skuNumberList == null || !skuNumberList.Any())
            {
                return resultList;
            }

            skuNumberList = skuNumberList.Distinct().ToList();

            string sql = @"
                SELECT tblSku.skuSkuNumber
	                ,tblAccountTaxCode.TaxCode
                FROM tblSku
                INNER JOIN tblAccountTaxCode ON tblSku.AccountTaxCodeID = tblAccountTaxCode.AccountTaxCodeID ";

            whereBuilder.Innit();
            whereBuilder.In("tblSku.skuSkuNumber", skuNumberList, "WHERE");

            sql += whereBuilder.SqlWhereString;

            using (var conn = new SqlConnection(SqlConnectionString))
            {
                conn.Open();

                using (var cmd = new SqlCommand(sql, conn))
                {
                    foreach (var param in whereBuilder.ParameterList)
                    {
                        cmd.Parameters.AddWithValue(param.Key, param.Value);
                    }

                    using (var reader = cmd.ExecuteReader())
                    {
                        if (!reader.HasRows)
                        {
                            return resultList;
                        }

                        while (reader.Read())
                        {
                            resultList.Add(reader.GetString(0), reader.GetString(1));
                        }
                    }
                }
            }

            return resultList;
        }

        public Dictionary<string, string> GetTaxCodeByInvoiceLineItemCode(List<string> lineItemCode)
        {
            var resultList = new Dictionary<string, string>();

            if (lineItemCode == null || !lineItemCode.Any())
            {
                return resultList;
            }

            lineItemCode = lineItemCode.Distinct().ToList();

            string sql = @"
                SELECT tblAccountInvoiceLineItem.ItemCode
	                ,tblAccountTaxCode.TaxCode
                FROM tblAccountInvoiceLineItem
                LEFT OUTER JOIN tblAccountTaxCode ON tblAccountInvoiceLineItem.AccountTaxCodeID_Default = tblAccountTaxCode.AccountTaxCodeID
                ";

            whereBuilder.Innit();
            whereBuilder.In("tblAccountInvoiceLineItem.ItemCode", lineItemCode, "WHERE");

            sql += whereBuilder.SqlWhereString;

            using (var conn = new SqlConnection(SqlConnectionString))
            {
                conn.Open();

                using (var cmd = new SqlCommand(sql, conn))
                {
                    foreach (var param in whereBuilder.ParameterList)
                    {
                        cmd.Parameters.AddWithValue(param.Key, param.Value);
                    }

                    using (var reader = cmd.ExecuteReader())
                    {
                        if (!reader.HasRows)
                        {
                            return resultList;
                        }

                        while (reader.Read())
                        {
                            if (reader.IsDBNull(1)) { resultList.Add(reader.GetString(0), null); }
                            else { resultList.Add(reader.GetString(0), reader.GetString(1)); }
                        }
                    }
                }
            }

            return resultList;
        }
    }
}