using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using PSTW_CentralSystem.DBContext;
using PSTW_CentralSystem.Models;
using PSTW_CentralSystem.Areas.MMS;
using System.Linq;
using QuestPDF.Fluent;
using PSTW_CentralSystem.Areas.MMS.Models.PDFGenerator;
using System.Globalization;

namespace PSTW_CentralSystem.Areas.MMS.Controllers
{
    [Area("MMS")]
    //[Authorize(Policy = "RoleModulePolicy")]
    public class MarineController(MMSSystemContext context) : Controller
    {
        private readonly MMSSystemContext _context = context;

        public IActionResult Index()
        {
            return View(); // This will look for Index.cshtml in Areas/MMS/Views/Marine
        }

        //what to require from database into front-end (here is logic for calling, etc.)
        public IActionResult TarBallForm()
        {
            var marineTarballs = _context.MarineTarballs
                .Where(t=>t.StationID != "1") //Exclude test data with station named "1"
                .Select(t => new
                {
                    t.Id, // Include Id property
                    Date = t.DateSample.ToString("yyyy/MM/dd"), // Format DateSample as needed
                    Station = t.StationID
                })
                .ToList();

            // For debugging
            Console.WriteLine("Fetched Data:");
            foreach (var item in marineTarballs)
            {
                Console.WriteLine($"Date: {item.Date}, Station: {item.Station}");
            }

            return View(marineTarballs);
        }

        //what to do for generating report
        public IActionResult GenerateReport(int id)
        {
            Console.WriteLine($"Requested ID in GenerateReport: {id}");

            try
            {
                var tarballData = (from marine in _context.MarineTarballs
                                   join station in _context.MarineStations
                                   on marine.StationID equals station.StationID
                                   join state in _context.States
                                   on station.StateID equals state.StateID
                                   where marine.Id == id
                                   select new
                                   {
                                       state.StateName,
                                       marine.StationID,
                                       station.LocationName,
                                       marine.Longitude,
                                       marine.Latitude,
                                       marine.DateSample,
                                       marine.TimeSample
                                       
                                   }).FirstOrDefault();

                if (tarballData == null)
                {
                    return NotFound("The specified record was not found.");
                }

                Console.WriteLine($"DateSample: {tarballData.DateSample}, TimeSample: {tarballData.TimeSample}");

                var pdfDocument = new TarBallPDF(
                    tarballData.StateName, 
                    tarballData.StationID,
                    tarballData.LocationName,
                    tarballData.Longitude,
                    tarballData.Latitude,
                    tarballData.DateSample, // Pass DateSample directly (raw value)
                    tarballData.TimeSample  // Pass TimeSample directly (raw value)
                );
                var pdf = pdfDocument.GeneratePdf();
                Console.WriteLine("PDF generation completed.");

                var formattedDate = tarballData.DateSample.ToString("yyyyMMdd");
                var fileName = $"TbReport_{tarballData.StationID}_{formattedDate}.pdf";

                return File(pdf, "application/pdf", fileName);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error in GenerateReport: {ex.Message}");
                return StatusCode(StatusCodes.Status500InternalServerError, "An error occurred while generating the PDF. Generate PDF error. " + ex.Message);
            }
        }

        public IActionResult ViewPDF(int id)
        {
            Console.WriteLine($"Requested ID in ViewReport: {id}");

            try
            {
                var tarballData = (from marine in _context.MarineTarballs
                                   join station in _context.MarineStations
                                   on marine.StationID equals station.StationID
                                   join state in _context.States
                                   on station.StateID equals state.StateID
                                   where marine.Id == id
                                   select new
                                   {
                                       state.StateName,
                                       marine.StationID,
                                       station.LocationName,
                                       marine.Longitude,
                                       marine.Latitude,
                                       marine.DateSample,
                                       marine.TimeSample
                                   }).FirstOrDefault();

                if (tarballData == null)
                {
                    return NotFound("The specified record was not found.");
                }

                Console.WriteLine($"DateSample: {tarballData.DateSample}, TimeSample: {tarballData.TimeSample}");

                // Generate the PDF - Make sure parameter order matches the constructor
                var document = new TarBallPDF(
                    tarballData.StateName,
                    tarballData.StationID,
                    tarballData.LocationName,
                    tarballData.Longitude,
                    tarballData.Latitude,
                    tarballData.DateSample,
                    tarballData.TimeSample
                );

                var pdf = document.GeneratePdf();

                // Return the file without forcing download
                return File(pdf, "application/pdf");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error in ViewPDF: {ex.Message}");
                return StatusCode(StatusCodes.Status500InternalServerError, "An error occurred while viewing the PDF. " + ex.Message);
            }
        }
    }
}