using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System;

namespace BH_ZmSalesEventsReport
{
    public class Program : BusinessObjects.Interfaces.IRuntime
    {
        public int Start   { get { return 500; } }
        public int Sleep   { get { return 500; } }
        private static string todayDate = DateTime.Now.ToString("d");
        private static string reportsSendingLogPath = Lift.LiftManager.ConfigProvider.GetValue("LogDir") + "reports_sending.log";
        private const string LOG_TAG = "ZM_SALES_EVENTS_MANAGER";

        public void Run(object obj)
        {

            if (IsToday7DaysToMonthEnd())
            {
                Lift.LiftManager.Logger.Write(LOG_TAG, "Today is the date to send ZM Selling Events Reports.");
                Console.WriteLine(todayDate);
                if (!wereReportsAlreadySentToday())
                {
                    CallReportGenerator();
                    WriteReporstSendDateToFile();
                    Lift.LiftManager.Logger.Write(LOG_TAG, "Reports have been sent.");
                }
                else
                {
                    Lift.LiftManager.Logger.Write(LOG_TAG, "Reports have already been sent today.");
                }
            }
        }

        private static void WriteReporstSendDateToFile()
        {
            Lift.LiftManager.Logger.Write(LOG_TAG, "Preparing to write '{0}' to reports_sending.log", todayDate);
            try
            {
                using (StreamWriter sw = File.CreateText(reportsSendingLogPath))
                {
                    sw.WriteLine(todayDate);
                    Lift.LiftManager.Logger.Write(LOG_TAG, "Reports_sending.log was updated");
                }
             }
            catch (Exception e)
            {
                Lift.LiftManager.Logger.Write(LOG_TAG, e.ToString());
            }
        }

        private static bool wereReportsAlreadySentToday()
        {
            List<string> reportsSendingDates = null;
            try
            {
                reportsSendingDates = File.ReadLines(reportsSendingLogPath).ToList();
            }
            catch (Exception e)
            {
                Lift.LiftManager.Logger.Write(LOG_TAG, e.ToString());
            }

            if(reportsSendingDates != null && reportsSendingDates.Contains(todayDate))
            {
                return true;
            }
            return false;
        }

        public void Stop()
        {
            throw new NotImplementedException();
        }

        private static bool IsToday7DaysToMonthEnd()
        {
            DateTime currentDate = DateTime.Today;

            int currentMonth = currentDate.Month;
            int currentYear = currentDate.Year;
            int currentDay = currentDate.Day;

            int daysInCurrentMonth = DateTime.DaysInMonth(currentYear, currentMonth);

            int daysBeforeMonthEnd = 7;

            int dayWhenReportShouldBeGenerated = daysInCurrentMonth - daysBeforeMonthEnd;

            if (currentDay == dayWhenReportShouldBeGenerated)
            {
                return true;
            }
            return false;
        }

        private static void CallReportGenerator()
        {
            try
            {
                System.ServiceModel.BasicHttpBinding binding = new System.ServiceModel.BasicHttpBinding();
                binding.Security.Mode = System.ServiceModel.BasicHttpSecurityMode.TransportCredentialOnly;
                binding.Security.Transport.ClientCredentialType = System.ServiceModel.HttpClientCredentialType.Basic;

                FASR.IntegrationClient proxy =
                    new FASR.IntegrationClient(binding, new System.ServiceModel.EndpointAddress(Lift.LiftManager.ConfigProvider.GetValue("wsdl_url")));

                proxy.ClientCredentials.UserName.UserName = Lift.LiftManager.ConfigProvider.GetValue("wsdl_user");
                proxy.ClientCredentials.UserName.Password = Lift.LiftManager.ConfigProvider.GetValue("wsdl_password");

                var generateReportsForZM = new FASR.RequiredSellingEventReport_GenerateReportsForZM_Call();
                generateReportsForZM.OnBehalfOf = Lift.LiftManager.ConfigProvider.GetValue("wsdl_user");
                generateReportsForZM.Record = new FASR.RequiredSellingEventReportRecord();

                FASR.ExecuteRequest executeRequest = new FASR.ExecuteRequest();
                executeRequest.OperationCalls = new FASR.OperationCall[1];
                executeRequest.OperationCalls[0] = generateReportsForZM;

                proxy.Execute(executeRequest);
            }
            catch (Exception e)
            {
                Lift.LiftManager.Logger.Write(LOG_TAG, e.ToString());
            }
        }

    }
}