using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using HealthchoiceMVC.Models;
using HealthchoiceMVC.Services;
using System.Threading.Tasks;
using System.Text.RegularExpressions;

namespace HealthchoiceMVC.Controllers
{
    public class ProviderRegistrationController : Controller
    {
        CommonController common = new CommonController();
        ApplicationUser user = new ApplicationUser();
        HCLocalService service = new HCLocalService();
        private HCDBEntities db = new HCDBEntities();
        private ApplicationDbContext userDb = new ApplicationDbContext();

        // GET: ProviderRegistration
        public ActionResult Index()
        {
            return View();
        }

        // GET: ProviderRegistration/Details/5
        public ActionResult Details(int id)
        {
            return View();
        }

        private void PopulateViewbag()
        {
            //ViewBag.CountryList = service.GetListOfCountries();
            //ViewBag.CountryListAll = service.GetListOfCountriesAll();
            //ViewBag.GenderList = service.GetLookUpDropDown("gender");
            ViewBag.TitleList = service.GetLookUpDropDown("title");
            //ViewBag.PDIStatus = service.GetLookUpDropDown("PDI");

            ViewBag.Disciplines = service.GetDisciplines();
            List<SelectListItem> SubDisciplines = new List<SelectListItem>();
            SubDisciplines.Add(new SelectListItem { Text = "-Select discipline first-", Value = "" });
            ViewBag.SubDisciplines = SubDisciplines;

            ViewBag.ProvSpecialityTypeList = service.GetLookUpDropDown("provider_speciality_type");

            var SubDisciplineKeys = new string[] { "", "18" };
            ViewBag.SubDisciplineList = service.GetSubDisciplinesByDisciplineCode(14).Where(s => SubDisciplineKeys.Contains(s.Value)); //JQuery needs to be added.
        }

        // GET: ProviderRegistration/Create
        public ActionResult Create()
        {
            provider provider = new provider();
            user = service.GetCurrentUserByName(User.Identity.Name);
            provider.prov_first_name = user.FirstName;
            provider.prov_surname = user.LastName;
            provider.prov_cell_no = user.ContactNumber;
            provider.prov_email = user.Email;
            provider.user_guid = user.Id;

            //remove this after testing
            provider.prov_cell_no = "0727977277";
            provider.prov_tel_no = "0215320937";
            provider.prov_discipline_code = 14;
            provider.prov_sub_discipline_key = 18;
            provider.prov_hpcsa_no = "1234567";
            provider.prov_middle_name = "Etienne";
            provider.prov_title = "Dr";
            provider.prov_id_no = "6606305051086";

            PopulateViewbag();

            return View(provider);
        }

        private string CleanPhone(string phone)
        {
            Regex digitsOnly = new Regex(@"[^\d]");
            return digitsOnly.Replace(phone, "");
        }

        private void PageValidation(provider provider)
        {
            provider.prov_country_code = "BA";// just temporarily to get basic registration done
            if (provider.prov_country_code.Equals("ZA") && provider.prov_id_no.Length != 13)
            {
                ModelState.AddModelError(String.Empty, "Your South African ID Number should be 13 digits.");
            }

            if (provider.prov_disp_lic_ind == true && provider.prov_disp_lic_no == null)
            {
                ModelState.AddModelError(String.Empty, "Please include your dispensing license number.");

            }

            if (provider.prov_disp_lic_ind == false && provider.prov_disp_lic_no != null)
            {
                ModelState.AddModelError(String.Empty, "Please select the can dispense option as well as your dispensing license number.");
            }


            string telNumeric = CleanPhone(provider.prov_tel_no);
            string mobileNumeric = CleanPhone(provider.prov_cell_no);

            if (telNumeric.Length < 10)
                ModelState.AddModelError("prov_tel_no", "Telephone number should contain at least 10 numeric characters");

            if (mobileNumeric.Length < 10)
                ModelState.AddModelError("prov_cell_no", "Alternative number should contain at least 10 numeric characters");

            if ((provider.prov_tel_no != null && provider.prov_cell_no != null) && (telNumeric.Length >= 9 && mobileNumeric.Length >= 9))
            {
                if (telNumeric.Substring(telNumeric.Length - 9) == mobileNumeric.Substring(mobileNumeric.Length - 9))
                {
                    ModelState.AddModelError("prov_tel_no", "Telephone and alternative number cannot be the same");
                }
            }
        }

        // POST: ProviderRegistration/Create
        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Create([Bind(Include = "prov_key,prov_title,prov_initials,prov_first_name,prov_middle_name,prov_surname,prov_country_code,prov_id_no,prov_id_type_key,prov_gender_code,prov_vat_no,prov_pdi_status_code,prov_discipline_code,prov_sub_discipline_key,prov_hpcsa_no,prov_email,prov_tel_dialling_code,prov_tel_no,prov_fax_no,prov_cell_no,prov_speciality_code,prov_disp_lic_ind,prov_disp_lic_no,prov_no_of_locations,prov_registered,prov_deregistered,modified_dt,modified_by_key,user_guid,registration_complete")] provider provider)
        {
            PageValidation(provider);
            
            var errors = ViewData.ModelState.Where(n => n.Value.Errors.Count > 0).ToList();
            if (ModelState.IsValid)
            {
                if (provider.prov_initials == null)
                {
                    string initials = "";
                    initials = provider.prov_first_name.ElementAt(0).ToString().ToUpper();

                    if (provider.prov_middle_name != null)
                    {
                        initials += "" + provider.prov_middle_name.ElementAt(0).ToString().ToUpper();
                    }

                    provider.prov_initials = initials;
                }
                
                //add the provider record
                provider.prov_registered = DateTime.Now;
                db.provider.Add(provider);
                await db.SaveChangesAsync();

                //add the user_link record
                user = service.GetCurrentUserByName(User.Identity.Name);
                user_link user_link = new user_link();
                user_link.entity_key = 4;
                user_link.entity_type = "Provider";
                user_link.UserId = user.Id;
                user_link.modified_by_key = user.Id;
                user_link.modified_dt = DateTime.Now;
                db.user_link.Add(user_link);
                await db.SaveChangesAsync();

                //add the prov_user_link record
                prov_user_link prov_user_link = new prov_user_link();
                prov_user_link.prov_key = provider.prov_key;
                prov_user_link.UserId = user.Id;
                db.prov_user_link.Add(prov_user_link);
                await db.SaveChangesAsync();

                //Add provider role
                var result = new CommonController();
                await result.AddUserRole(user.Id, "3"); //Provider
                await result.AddUserRole(user.Id, "7"); //ProviderAdmin

                return RedirectToAction("Index", "Home");
            }

            PopulateViewbag();
            return View(provider);
        }

        // GET: ProviderRegistration/Edit/5
        public ActionResult Edit(int id)
        {
            return View();
        }

        // POST: ProviderRegistration/Edit/5
        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: ProviderRegistration/Delete/5
        public ActionResult Delete(int id)
        {
            return View();
        }

        // POST: ProviderRegistration/Delete/5
        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}