using System;
using System.Linq;
using System.Web.Mvc;
using MileageTraker.Web.Attributes;
using MileageTraker.Web.DAL;
using MileageTraker.Web.Utility;
using MileageTraker.Web.ViewModels.VehicleService;

namespace MileageTraker.Web.Controllers
{
	[Authorize(Roles = "Administrator, Developer")]
	public class VehicleServiceController : ControllerBase
    {
        public ActionResult Index(VehicleServiceQueryViewModel query)
        {
			var validVehicleServiceYearMonths = DataService.GetValidVehicleServiceMonths();

			if (!validVehicleServiceYearMonths.Any()) // this means no logs in DB
				return View("Empty");

			// default parameter processing
			query.SetDefaultParameters(validVehicleServiceYearMonths);

			var vehicleServices = DataService.FilterVehicleServices(DataService.GetVehicleServices(), query).ToList();

	        var viewModel = new VehicleServiceResultsViewModel(
				vehicleServices.Select(s => new VehicleServiceViewModel(s)),
				query,
				CustomExtensions.YearMonthList(validVehicleServiceYearMonths));

			return View(viewModel);
        }

		[ActionLog]
		public ActionResult Export(VehicleServiceQueryViewModel query)
		{
			var validVehicleServiceYearMonths = DataService.GetValidVehicleServiceMonths();

			if (!validVehicleServiceYearMonths.Any()) // this means no logs in DB
				return View("Empty");

			// default parameter processing
			query.SetDefaultParameters(validVehicleServiceYearMonths);

			var vehicleServices = DataService.FilterVehicleServices(DataService.GetVehicleServices(), query).ToList();
			var filteredServices = vehicleServices.Select(vs => new VehicleServiceViewModel(vs));

			var name = string.Format("VehicleServices_{0}", query);

			var export = ExcelWriter<VehicleServiceViewModel>.WriteXls(filteredServices, name, name);
			return File(export, "application/ms-excel", name + ".xls");
		}

		public ViewResult Details(int id)
		{
			var vehicleService = DataService.GetVehicleService(id);
			var viewModel = new VehicleServiceViewModel(vehicleService);
			return View(viewModel);
		}

		public ActionResult Create()
		{
			return View();
		}

		[HttpPost]
		[ActionLog]
		public ActionResult Create(VehicleServiceViewModel viewModel)
		{
			if (ModelState.IsValid)
			{
				var vehicleService = viewModel.GetVehicleService();


				vehicleService.Vehicle = DataService.GetVehicle(viewModel.VehicleId);
				DataService.AddVehicleService(vehicleService);

				SetStatusMessage(
					string.Format("Vehicle Service for vehicle {0} created", viewModel.VehicleId), StatusType.Success);
				return RedirectToAction("Index");
			}

			return View(viewModel);
		}

		public ActionResult Edit(int id)
		{
			var vehicleService = DataService.GetVehicleService(id);
			var viewModel = new VehicleServiceViewModel(vehicleService);
			return View(viewModel);
		}

		[HttpPost]
		[ActionLog]
		public ActionResult Edit(VehicleServiceViewModel viewModel)
		{
			if (ModelState.IsValid)
			{
				var vehicleService = viewModel.GetVehicleService();
				vehicleService.Vehicle = DataService.GetVehicle(viewModel.VehicleId);

				DataService.UpdateVehicleService(vehicleService);
				SetStatusMessage("Changes saved for vehicle service " + vehicleService.Vehicle.VehicleId);
				return RedirectToAction("Details", new { id = vehicleService.VehicleServiceId });
			}
			return View(viewModel);
		}

		public JsonResult ServiceCenterNameAutocomplete(string term)
		{
			var names = DataService.GetServiceCenterNamesAutocomplete(term);
			return Json(names, JsonRequestBehavior.AllowGet);
		}
	}
}