VirtualTask/Controllers/RapportiniController.cs

using ClosedXML.Excel;
using DocumentFormat.OpenXml.Spreadsheet;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
using System.Diagnostics;
using VirtualTask.Models;
using X.PagedList;

namespace VirtualTask.Controllers
{
    public class RapportiniController : Controller
    {
        string apiUrl = string.Empty;
        string urlBase = string.Empty;
        string token = string.Empty;
        string tenant = string.Empty;
        string errMes = string.Empty;
        string admin = string.Empty;

        HttpClient client;

        private readonly IConfiguration _configuration;

        public RapportiniController(IConfiguration configuration)
        {
            client = new HttpClient();
            _configuration = configuration;
            var key = _configuration["ApplicationInsights:rootUrlApi"];
            apiUrl = key;
        }


        public IActionResult Index(string searchString, int? page = 1)
        {
            SessionHelper helper = new SessionHelper(this);
            token = helper.GetStringValue("tok");
            if (string.IsNullOrEmpty(token))
            {
                return RedirectToAction("Login2", "Login");
            }

            apiUrl = helper.GetStringValue("apiUrl");
            admin = helper.GetStringValue("admin");
            ViewBag.Admin = admin;
            urlBase = apiUrl + "rapportiniList";
            urlBase = urlBase + "?token=" + token;
            Uri baseAddress = new Uri(urlBase);
            client = new HttpClient();
            client.BaseAddress = baseAddress;

            List<Rapportini> modelList = new List<Rapportini>();
            HttpResponseMessage response = client.GetAsync(baseAddress).Result;

            if (response.IsSuccessStatusCode)
            {
                string data = response.Content.ReadAsStringAsync().Result;
                modelList = JsonConvert.DeserializeObject<List<Rapportini>>(data);

                if (!string.IsNullOrEmpty(searchString))
                {
                    modelList = modelList.Where(s => s.seriale_rapportino.ToUpper().Contains(searchString.ToUpper())).ToList();

                    ViewData["CurrentFilter"] = searchString;
                }
                else
                    ViewData["CurrentFilter"] = null;

                if (page != null && page < 1)
                {
                    page = 1;
                }

                var pageSize = 10;

                var shortLinks = modelList
                    .OrderByDescending(s => s.seriale_rapportino)
                    .ToPagedList(page ?? 1, pageSize);

                return View(shortLinks);
            }
            else
            {
                errMes = response.Content.ReadAsStringAsync().Result;
                helper.SetStringValue("errMsg", errMes);
                return RedirectToAction("Error");
            }
        }

        public IActionResult ExportDataToExcel(DateTime dataIni, DateTime dataFin)
        {
            SessionHelper helper = new SessionHelper(this);
            token = helper.GetStringValue("tok");
            if (string.IsNullOrEmpty(token))
            {
                return RedirectToAction("Login2", "Login");
            }

            apiUrl = helper.GetStringValue("apiUrl");
            admin = helper.GetStringValue("admin");
            ViewBag.Admin = admin;
            urlBase = apiUrl + "rapportiniList";
            urlBase = urlBase + "?token=" + token;
            Uri baseAddress = new Uri(urlBase);
            client = new HttpClient();
            client.BaseAddress = baseAddress;

            List<Rapportini> modelList = new List<Rapportini>();

            HttpResponseMessage response = client.GetAsync(baseAddress).Result;

            if (response.IsSuccessStatusCode)
            {
                string data = response.Content.ReadAsStringAsync().Result;

                modelList = JsonConvert.DeserializeObject<List<Rapportini>>(data);

                if (!dataFin.ToString().Substring(0, 10).Equals("01/01/0001"))
                {
                    modelList = modelList.Where(x => x.data_rapportino.GetValueOrDefault().Date >= dataIni.Date && x.data_rapportino.GetValueOrDefault().Date <= dataFin.Date).ToList();
                }
                else
                {
                    modelList = modelList.Where(x => x.data_rapportino.GetValueOrDefault().Date >= dataIni.Date).ToList();
                }

                var workbook = new XLWorkbook();
                workbook.AddWorksheet("sheetName");
                var ws = workbook.Worksheet("sheetName");

                int col = 1;
                                
                //Scrivo intestazioni colonne
                foreach (var item in modelList[0].GetType().GetProperties())
                {
                    ws.Cell(1, col).Style = ws.Cell(1, col).Style.Font.SetBold();
                    ws.Cell(1, col).Value = item.Name.ToString().Replace("_"," ").ToUpper();

                    col++;
                }

                var row = 0;

                foreach (var item in modelList)
                {
                    var colonna = 1;

                    //righe per ogni elemento nel modelList
                    foreach (var prop in item.GetType().GetProperties())
                    {
                        ws.Cell(row + 2, colonna).Value = prop.GetValue(item).ToString();

                        colonna ++;
                    }

                    row ++;
                }

                //Salvo il file Excel

                var anno = DateTime.Now.Year.ToString();
                var mese = DateTime.Now.Month.ToString();
                var giorno = DateTime.Now.Day.ToString();
                var ore = DateTime.Now.Hour.ToString();
                var minuti = DateTime.Now.Minute.ToString();
                var secondi = DateTime.Now.Second.ToString();

                var dateFile = anno + mese + giorno + ore + minuti + secondi;

                workbook.SaveAs($"C:\\Users\\utente\\Desktop\\ExcelVT\\rapportini_{dateFile}.xlsx");

                return RedirectToAction("Index");

            }
            else
            {
                errMes = response.Content.ReadAsStringAsync().Result;
                helper.SetStringValue("errMsg", errMes);
                return RedirectToAction("Error");
            }
        }

        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            SessionHelper helper = new SessionHelper(this);
            string e = helper.GetStringValue("errMsg");
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier, ErrMsg = e });
        }
    }
}