using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.Logging;
using TTSW.Controllers;
using TTSW.EF;
using TTSW.Utils;
using TTSW.Constant;
using TTSW.Common;
using TodoAPI2.Models;
using System.Data;
using Microsoft.Extensions.Configuration;
using System.IO;
using System.Net;
using iTextSharp.text.pdf;
using iTextSharp.text;

namespace TodoAPI2.Controllers
{
    //[Authorize]
    [Produces("application/json")]
    [Route("api/rep_eva_x")]
    public class rep_eva_xController : BaseController
    {
        #region Private Variables
        private ILogger<rep_eva_xController> _logger;
        private Irep_eva_xService _repository;
		private IConfiguration Configuration { get; set; }
        private Ieva_create_evaluation_detail_processService _process;
        private Iexternal_linkageService ext;
        Iexternal_employeeService emp;
        #endregion

        #region Properties

        #endregion

        /// <summary>
        /// Default constructure for dependency injection
        /// </summary>
        /// <param name="repository"></param>
        /// <param name="configuration"></param>
        /// <param name="process"></param>
        /// <param name="inext"></param>
        /// <param name="inemp"></param>
        /// <param name="logger"></param>
        public rep_eva_xController(ILogger<rep_eva_xController> logger, Irep_eva_xService repository, IConfiguration configuration,
            Ieva_create_evaluation_detail_processService process, Iexternal_linkageService inext, Iexternal_employeeService inemp)
        {
            _logger = logger;
            _repository = repository;
            _process = process;
			Configuration = configuration;
            ext = inext;
            emp = inemp;
        }

		/// <summary>
        /// Get Blank Item
        /// </summary>
        /// <remarks>
        /// </remarks>
        /// <returns>Return a blank item</returns>
        /// <response code="200">Returns the item</response>
        /// <response code="500">Error Occurred</response>  
        [HttpGet("GetBlankItem")]
        [ProducesResponseType(typeof(rep_eva_xWithSelectionViewModel), 200)]
        [ProducesResponseType(400)]
        [ProducesResponseType(500)]
        //[ValidateAntiForgeryToken]
        public IActionResult GetBlankItem()
        {
            try
            {
				if (!MyHelper.checkAuth(Configuration, HttpContext)) return Unauthorized();
                var result = _repository.GetBlankItem();

                return Ok(result);
            }
            catch (Exception ex)
            {
                _logger.LogCritical($"Exception in IActionResult GetBlankItem.", ex);
                return StatusCode(500, $"{ex.Message}");
            }
        }

        /// <summary>
        /// Download Report
        /// </summary>
        /// <remarks>
        /// </remarks>
        /// <returns>Return list of items by specifced keyword</returns>
        /// <response code="200">Returns the item</response>
        /// <response code="500">Error Occurred</response>  
        [HttpGet("rep_eva_p01_report")]
        [ProducesResponseType(typeof(FileStreamResult), 200)]
        [ProducesResponseType(400)]
        [ProducesResponseType(500)]
        //[ValidateAntiForgeryToken]
        public IActionResult rep_eva_p01_report(rep_eva_p01ReportRequestModel model)
        {
            try
            {
                if (!MyHelper.checkAuth(Configuration, HttpContext)) return Unauthorized();

                var stream = new MemoryStream();
                Document document = new Document();
                PdfCopy writer = new PdfCopy(document, stream);
                document.Open();

                var data = GetReportP01(model);

                PdfReader reader = new PdfReader(data);
                reader.ConsolidateNamedDestinations();

                for (int i = 1; i <= reader.NumberOfPages; i++)
                {
                    PdfImportedPage page = writer.GetImportedPage(reader, i);
                    writer.AddPage(page);
                }

                reader.Close();

                writer.Close();
                document.Close();

                var data2 = stream.ToArray();
                var stream2 = new MemoryStream(data2);

                return File(stream2, model.contentType);
            }
            catch (Exception ex)
            {
                _logger.LogCritical($"Exception while GetReport.", ex);
                return StatusCode(500, $"{ex.Message}");
            }
        }

        private byte[] GetReportP01(rep_eva_p01ReportRequestModel model)
        {
            var httpclient = new WebClient();

            string mainurl = MyHelper.GetConfig(Configuration, "JasperReportServer:MainURL");
            string reportsite = MyHelper.GetConfig(Configuration, "JasperReportServer:reportsite");
            string username = MyHelper.GetConfig(Configuration, "JasperReportServer:username");
            string password = MyHelper.GetConfig(Configuration, "JasperReportServer:password");

            var p1 = GetParameter(model.detail_id);

            var stream = new MemoryStream();
            Document document = new Document();
            PdfCopy writer = new PdfCopy(document, stream);
            document.Open();

            string url = $"{mainurl}{reportsite}/rep_eva_p01.{model.filetype}?{MyHelper.GetParameterForJasperReport(p1)}&j_username={username}&j_password={password}";

            var data = httpclient.DownloadData(url);

            PdfReader reader = new PdfReader(data);
            reader.ConsolidateNamedDestinations();

            for (int i = 1; i <= reader.NumberOfPages; i++)
            {
                PdfImportedPage page = writer.GetImportedPage(reader, i);
                writer.AddPage(page);
            }

            reader.Close();

            writer.Close();
            document.Close();

            var data2 = stream.ToArray();
            return data2;
        }

        /// <summary>
        /// Download Report
        /// </summary>
        /// <remarks>
        /// </remarks>
        /// <returns>Return list of items by specifced keyword</returns>
        /// <response code="200">Returns the item</response>
        /// <response code="500">Error Occurred</response>  
        [HttpGet("rep_eva_x_report")]
        [ProducesResponseType(typeof(FileStreamResult), 200)]
        [ProducesResponseType(400)]
        [ProducesResponseType(500)]
        //[ValidateAntiForgeryToken]
        public IActionResult rep_eva_x_report(rep_eva_xReportRequestModel model)
        {
            try
            {
				if (!MyHelper.checkAuth(Configuration, HttpContext)) return Unauthorized();

                var stream = new MemoryStream();
                Document document = new Document();
                PdfCopy writer = new PdfCopy(document, stream);
                document.Open();

                foreach (var k in model.detail_id)
                {
                    var data = GetReport(k, model);

                    PdfReader reader = new PdfReader(data);
                    reader.ConsolidateNamedDestinations();

                    for (int i = 1; i <= reader.NumberOfPages; i++)
                    {
                        PdfImportedPage page = writer.GetImportedPage(reader, i);
                        writer.AddPage(page);
                    }

                    reader.Close();

                    if(model.is_print_22 == 1)
                    {
                        rep_eva_p01ReportRequestModel model2 = new rep_eva_p01ReportRequestModel();
                        model2.filetype = model.filetype;
                        model2.detail_id = k;

                        var data2x = GetReportP01(model2);

                        PdfReader reader2 = new PdfReader(data2x);
                        reader2.ConsolidateNamedDestinations();

                        for (int i = 1; i <= reader2.NumberOfPages; i++)
                        {
                            PdfImportedPage page = writer.GetImportedPage(reader2, i);
                            writer.AddPage(page);
                        }

                        reader2.Close();
                    }
                }

                writer.Close();
                document.Close();

                var data2 = stream.ToArray();
                var stream2 = new MemoryStream(data2);

                return File(stream2, model.contentType);
            }
            catch (Exception ex)
            {
                _logger.LogCritical($"Exception while GetReport.", ex);
                return StatusCode(500, $"{ex.Message}");
            }
        }

        private byte[] GetReport(int detail_id, rep_eva_xReportRequestModel model)
        {
            var httpclient = new WebClient();

            string mainurl = MyHelper.GetConfig(Configuration, "JasperReportServer:MainURL");
            string reportsite = MyHelper.GetConfig(Configuration, "JasperReportServer:reportsite");
            string username = MyHelper.GetConfig(Configuration, "JasperReportServer:username");
            string password = MyHelper.GetConfig(Configuration, "JasperReportServer:password");

            var p1 = GetParameter(detail_id);

            var stream = new MemoryStream();
            Document document = new Document();
            PdfCopy writer = new PdfCopy(document, stream);
            document.Open();

            var rep_type = new int[] { 1, 2, 3, 4, 5 };

            foreach (var k in rep_type)
            {
                string url = $"{mainurl}{reportsite}/rep_eva_x{k}.{model.filetype}?{MyHelper.GetParameterForJasperReport(p1)}&j_username={username}&j_password={password}";

                var data = httpclient.DownloadData(url);

                PdfReader reader = new PdfReader(data);
                reader.ConsolidateNamedDestinations();

                for (int i = 1; i <= reader.NumberOfPages; i++)
                {
                    PdfImportedPage page = writer.GetImportedPage(reader, i);
                    writer.AddPage(page);
                }

                reader.Close();
            }

            writer.Close();
            document.Close();

            var data2 = stream.ToArray();
            return data2;
        }

        private rep_eva_xInputModel2 GetParameter(int detail_id)
        {
            var i = new rep_eva_xInputModel2();

            i.create_evaluation_detail_id = detail_id;
            var p = _process.Get(detail_id, null, null);

            i.employee_fullname = p.employee_fullname;
            i.employee_code = p.employee_code;
            i.employee_position_type = p.employee_position_type;
            i.employee_position_level = p.employee_position_level;
            i.employee_org = p.employee_org;

            if (i.employee_org != null) i.employee_org = i.employee_org.Replace("แผนก", "");

            i.employee_position = p.employee_position;
            if (!string.IsNullOrEmpty(p.employee_profile_picture))
            {
                i.image_url = MyHelper.GetConfig(Configuration, "SiteInformation:hr_svc") + "/api/image/" + p.employee_profile_picture;

                // Check if i.image_url exist                
                try
                {
                    HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(i.image_url);
                    request.Method = "HEAD";
                    request.GetResponse();
                }
                catch
                {
                    i.image_url = null;
                }
            }

            i.chief_fullname = p.chief_fullname;
            i.chief_position = p.chief_position;
            i.supervisor2_fullname = p.supervisor2_fullname;
            i.supervisor2_position = p.supervisor2_position;
            i.supervisor1A_fullname = p.supervisor1A_fullname;
            i.supervisor1A_position = p.supervisor1A_position;
            i.supervisor2A_fullname = p.supervisor2A_fullname;
            i.supervisor2A_position = p.supervisor2A_position;
            i.main_dept = p.employee_main_dept;

            if (i.main_dept != null) i.main_dept = i.main_dept.Replace("กอง","");

            i.leave_period = MyHelper.GetDateStringForReport(p.start_date) + " ถึง " + MyHelper.GetDateStringForReport(p.end_date);
            i.selected_round = p.selected_round;

            var context = _process.GetDataContext();
            var all_eva = (from x in context.eva_performance_plan
                           where x.fiscal_year == p.fiscal_year
                           orderby x.theTime
                           select x).ToList();
            foreach(var x2 in all_eva)
            {
                var start = (from n in context.eva_performance_plan_detail
                             where n.performance_plan_id == x2.id
                             select n.start_date).Min();
                var end = (from n in context.eva_performance_plan_detail
                             where n.performance_plan_id == x2.id
                             select n.end_date).Min();
                var text = MyHelper.GetDateStringForReport(start) + " ถึง " + MyHelper.GetDateStringForReport(end);
                if(x2.theTime == 1)
                {
                    i.round1_text = text;
                }
                if (x2.theTime == 2)
                {
                    i.round2_text = text;
                }
            }

            var detail = (from x in context.eva_create_evaluation_detail
                          where x.id == detail_id
                          select x).FirstOrDefault();
            if(detail != null)
            {
                i.total_summary_supervisor2a = detail.total_summary_supervisor2A;
                i.final_summary_supervisor2a = detail.Final_summary_supervisor2A;
                i.total_summary_competency_supervisor2a = detail.total_summary_competency_supervisor2A;
                i.final_summary_competency_supervisor2a = detail.Final_summary_competency_supervisor2A;
                i.achievement_supervisor2a = detail.achievement_supervisor2A;
                i.competency_supervisor2a = detail.competency_supervisor2A;
                i.score_supervisor2a = detail.score_supervisor2A;
                i.level_score_supervisor2a = detail.level_score_supervisor2A;
            }

            i.w1 = p.create_evaluation_score1;
            i.w2 = p.create_evaluation_score2;

            if(p.start_date.HasValue && p.end_date.HasValue)
            {
                var q = emp.GetLeaveOfEmployee(p.employee_id.Value, p.start_date, p.end_date);
                i.sum_day_sick_leave = q.sum_day_sick_leave;
                i.count_sick_leave = q.count_sick_leave;
                i.sum_day_personal_leave = q.sum_day_personal_leave;
                i.count_personal_leave = q.count_personal_leave;
                i.sum_day_vacation_leave = q.sum_day_vacation_leave;
                i.count_stop_working = q.count_stop_working;
                i.count_late_tad_processing_time_results = q.count_late_tad_processing_time_results;
                i.count_absence_tad_processing_time_results = q.count_absence_tad_processing_time_results;
                i.sum_day_sick_personal_leave = q.sum_day_sick_personal_leave;
                i.count_sick_personal_leave = q.count_sick_personal_leave;
            }

            i.txt_status_self_a_click_date = MyHelper.GetDateStringForReport(p.status_self_a_click_date);
            if (i.txt_status_self_a_click_date == "") i.txt_status_self_a_click_date = "..................................";
            i.txt_status_chief_a_click_date = MyHelper.GetDateStringForReport(p.status_chief_a_click_date);
            if (i.txt_status_chief_a_click_date == "") i.txt_status_chief_a_click_date = "..................................";

            return i;
        }

    }
}