using bnhtrade.Core.Data.Amazon.Report;
using System.Linq;

namespace bnhtrade.Core.Logic.Import
{
    public class AmazonSettlement
    {
        private Data.Amazon.Report.SettlementReport amazonReport;
        private Logic.Log.LogEvent log = new Log.LogEvent();


        public AmazonSettlement()
        {
            amazonReport = new Data.Amazon.Report.SettlementReport();
        }

        public void SyncDatabase()
        {
            string operation = "Import Amazon Settlement Reports";

            log.LogInformation("Started '" + operation + "' operation.");

            // get avaiable reports from amazon api
            var spapiReportIdList = amazonReport.ListAvaliableReports();
            int reportCount = spapiReportIdList.Count();

            if (reportCount == 0)
            {
                log.LogInformation("Exiting '" + operation + "' operation. No settlement reports availble on Amazon SP-API.");
                return;
            }

            // query db and remove reports that have already been imported
            var dbReportList = new Data.Database.Import.AmazonSettlementHeaderRead().BySpapiReportId(spapiReportIdList);
            foreach (var dbReport in dbReportList)
            {
                if (dbReport.SpapiReportIdIsSet)
                {
                    for (int i = 0; i < spapiReportIdList.Count; i++)
                    {
                        if (spapiReportIdList[i] == dbReport.SpapiReportId)
                        {
                            spapiReportIdList.RemoveAt(i);
                            i--;
                            break;
                        }
                    }
                }
            }

            if (!spapiReportIdList.Any())
            {
                log.LogInformation("Exiting '" + operation + "' operation. No new reports to import (" + reportCount + " avaibale).");
                return;
            }

            // import into database
            var dbInsert = new Data.Database.Import.AmazonSettlementInsert();
            for (int i = 0; i < spapiReportIdList.Count(); i++)
            {
                UI.Console.WriteLine("Importing settlement report " + (i + 1) + " of " + spapiReportIdList.Count() + " (ReportID:" + spapiReportIdList[i] + ").");
                var filePath = amazonReport.GetReportFile(spapiReportIdList[i]);
                bool ack = dbInsert.ByFlatFile(filePath, spapiReportIdList[i]);
                log.LogInformation("Settlment Report imported  (ReportID:" + spapiReportIdList[i] + ").");
            }

            return;
        }
    }
}