using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.EntityFrameworkCore;
using DMSSample.Models;
using DMSSample.Services;
using Microsoft.AspNetCore.Mvc.Filters;

namespace DMSSample.Controllers
{
    public class PersonController : BaseController
    {
        public PersonController(IDbContextService dbContextService) : base(dbContextService){
        }

        public IActionResult Index(string searchString, bool? isPopup){
            ViewData["SearchString"] = searchString;
            if(isPopup == null){
                return View();
            }else{
                return View("Popup");
            }
        }
        // GET: Person
        public async Task<IActionResult> SearchList(string sortOrder, string searchString, int? page, bool? isPopup)
        {
            var person = from p in _context.Person select p;

            ViewData["SortOrder"] = sortOrder;
            ViewData["SearchString"] = searchString;

            if(!String.IsNullOrEmpty(searchString)){
                person = person.Where(p => p.FullName.StartsWith(searchString));
            }

            switch(sortOrder){
                case "full_name_desc":
                    person = person.OrderByDescending(p => p.FullName);
                    break;
                case "full_name":
                    person = person.OrderBy(p => p.FullName);
                    break;
                case "first_name_desc":
                    person = person.OrderByDescending(p => p.FirstName);
                    break;
                case "first_name":
                    person = person.OrderBy(p => p.FirstName);
                    break;
                case "last_name_desc":
                    person = person.OrderByDescending(p => p.LastName);
                    break;
                case "last_name":
                    person = person.OrderByDescending(p => p.LastName);
                    break;
                default:
                    person = person.OrderBy(p => p.FullName);
                    break;
            }

            if(isPopup == null){
                int pageSize = 10;
                return PartialView("SearchList", await PaginatedList<Person>.CreateAsync(person.AsNoTracking(), page ?? 1, pageSize));
            }else{
                int pageSize = 10;
                return PartialView("PopupList", await PaginatedList<Person>.CreateAsync(person.AsNoTracking(), page ?? 1, pageSize));
            }
        }

        // GET: Person/Details/5
        public async Task<IActionResult> Details(int? id)
        {
            if (id == null)
            {
                return NotFound();
            }

            var person = await _context.Person
                .SingleOrDefaultAsync(m => m.Id == id);
            if (person == null)
            {
                return NotFound();
            }

            return View(person);
        }

        // GET: Person/Create
        public IActionResult Create()
        {
            return View();
        }

        // POST: Person/Create
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Create([Bind("Id,FullName,LastName,FirstName")] Person person)
        {
            if (ModelState.IsValid)
            {
                _context.Add(person);
                await _context.SaveChangesAsync();
                return RedirectToAction(nameof(Index));
            }
            return View(person);
        }

        // GET: Person/Edit/5
        public async Task<IActionResult> Edit(int? id)
        {
            if (id == null)
            {
                return NotFound();
            }

            var person = await _context.Person.SingleOrDefaultAsync(m => m.Id == id);
            if (person == null)
            {
                return NotFound();
            }
            return View(person);
        }

        // POST: Person/Edit/5
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Edit(int id, [Bind("Id,FullName,LastName,FirstName")] Person person)
        {
            if (id != person.Id)
            {
                return NotFound();
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(person);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!PersonExists(person.Id))
                    {
                        return NotFound();
                    }
                    else
                    {
                        throw;
                    }
                }
                return RedirectToAction(nameof(Index));
            }
            return View(person);
        }

        // GET: Person/Delete/5
        public async Task<IActionResult> Delete(int? id)
        {
            if (id == null)
            {
                return NotFound();
            }

            var person = await _context.Person
                .SingleOrDefaultAsync(m => m.Id == id);
            if (person == null)
            {
                return NotFound();
            }

            return View(person);
        }

        // POST: Person/Delete/5
        [HttpPost, ActionName("Delete")]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> DeleteConfirmed(int id)
        {
            var person = await _context.Person.SingleOrDefaultAsync(m => m.Id == id);
            _context.Person.Remove(person);
            await _context.SaveChangesAsync();
            return RedirectToAction(nameof(Index));
        }

        private bool PersonExists(int id)
        {
            return _context.Person.Any(e => e.Id == id);
        }
    }
}