using General_Ledger_Service.DTOs.Reports;

namespace General_Ledger_Service.Services.CsvDocuments
{
    public static class ProfitAndLossCsvDocument
    {
        public static byte[] Generate(ProfitAndLossReportDto data)
        {
            var csv = new CsvBuilder();
            csv.AddRow("Section", "Account Code", "Account Name", "Amount");

            AddSection(csv, "Sales", data.Sales);
            AddSection(csv, "Cost of Sales", data.CostOfSales);
            csv.AddRow("", "", "GROSS PROFIT", data.GrossProfit);

            AddSection(csv, "Other Income", data.OtherIncome);
            AddSection(csv, "Distribution Expenses", data.DistributionExpenses);
            AddSection(csv, "Administration Expenses", data.AdministrationExpenses);
            AddSection(csv, "Other Expenses", data.OtherExpenses);
            AddSection(csv, "Financial Expenses", data.FinancialExpenses);

            if (data.Unclassified.Lines.Count > 0)
            {
                AddSection(csv, "Unclassified", data.Unclassified);
            }

            csv.AddRow("", "", "NET PROFIT FOR THE PERIOD", data.NetProfitForPeriod);
            return csv.Build();
        }

        private static void AddSection(CsvBuilder csv, string section, ProfitAndLossSectionDto sectionDto)
        {
            foreach (var line in sectionDto.Lines)
            {
                csv.AddRow(section, line.AccountCode, line.AccountName, line.Amount);
            }

            csv.AddRow(section, "", $"Total {section}", sectionDto.Total);
        }
    }
}