using System.Linq;
using System.Threading.Tasks;
using DiscImageChef.Server.Models;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace DiscImageChef.Server.Areas.Admin.Controllers
{
    [Area("Admin"), Authorize]
    public class DeviceStatsController : Controller
    {
        readonly DicServerContext _context;

        public DeviceStatsController(DicServerContext context) => _context = context;

        // GET: Admin/DeviceStats
        public async Task<IActionResult> Index() =>
            View(await _context.DeviceStats.OrderBy(d => d.Manufacturer).ThenBy(d => d.Model).ThenBy(d => d.Bus).
                                ToListAsync());

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

            DeviceStat deviceStat = await _context.DeviceStats.FindAsync(id);

            if(deviceStat == null)
            {
                return NotFound();
            }

            return View(deviceStat);
        }

        // POST: Admin/DeviceStats/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,Manufacturer,Model,Revision,Bus")]
                                              DeviceStat changedModel)
        {
            if(id != changedModel.Id)
                return NotFound();

            if(!ModelState.IsValid)
                return View(changedModel);

            DeviceStat model = await _context.DeviceStats.FirstOrDefaultAsync(m => m.Id == id);

            if(model is null)
                return NotFound();

            model.Manufacturer = changedModel.Manufacturer;
            model.Model        = changedModel.Model;
            model.Revision     = changedModel.Revision;
            model.Bus          = changedModel.Bus;

            try
            {
                _context.Update(model);
                await _context.SaveChangesAsync();
            }
            catch(DbUpdateConcurrencyException)
            {
                ModelState.AddModelError("Concurrency", "Concurrency error, please report to the administrator.");
            }

            return RedirectToAction(nameof(Index));
        }

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

            DeviceStat deviceStat = await _context.DeviceStats.FirstOrDefaultAsync(m => m.Id == id);

            if(deviceStat == null)
            {
                return NotFound();
            }

            return View(deviceStat);
        }

        // POST: Admin/DeviceStats/Delete/5
        [HttpPost, ActionName("Delete"), ValidateAntiForgeryToken]
        public async Task<IActionResult> DeleteConfirmed(int id)
        {
            DeviceStat deviceStat = await _context.DeviceStats.FindAsync(id);
            _context.DeviceStats.Remove(deviceStat);
            await _context.SaveChangesAsync();

            return RedirectToAction(nameof(Index));
        }
    }
}