TournamentTracker/TrackerWPFUI/ViewModels/CreatePrizeViewModel.cs

using Caliburn.Micro;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TrackerLibrary;
using TrackerLibrary.Models;

namespace TrackerWPFUI.ViewModels
{
    public class CreatePrizeViewModel : Screen
    {
		private int _placeNumber;
		private string _placeName;
		private decimal _prizeAmount;
		private double _prizePercentage;


		public int PlaceNumber
		{
			get { return _placeNumber; }
			set {
				_placeNumber = value;
				NotifyOfPropertyChange(() => PlaceNumber);
			}
		}


		public string PlaceName
		{
			get { return _placeName; }
			set { _placeName = value;
				NotifyOfPropertyChange(() => PlaceName);
			}
		}


		public decimal PrizeAmount
		{
			get { return _prizeAmount; }
			set { _prizeAmount = value;
				NotifyOfPropertyChange(() => PrizeAmount);
			}
		}


		public double PrizePercentage
		{
			get { return _prizePercentage; }
			set { _prizePercentage = value;
				NotifyOfPropertyChange(() => PrizePercentage);
			}
		}

		public void CancelCreation()
		{
			EventAggregationProvider.TrackerEventAggregator.PublishOnCurrentThread(new PrizeModel());
			this.TryClose();
		}

		public bool CanCreatePrize(int placeNumber, string placeName, decimal prizeAmount, double prizePercentage)
		{
			return ValidateForm(placeNumber, placeName, prizeAmount, prizePercentage);
		}

		public void CreatePrize(int placeNumber, string placeName, decimal prizeAmount, double prizePercentage)
		{
			PrizeModel model = new PrizeModel
			{
				PlaceNumber = placeNumber,
				PlaceName = placeName,
				PrizeAmount = prizeAmount,
				PrizePercentage = prizePercentage
			};
			GlobalConfig.Connection.CreatePrize(model);

			EventAggregationProvider.TrackerEventAggregator.PublishOnCurrentThread(model);
			this.TryClose();
		}

		private bool ValidateForm(int placeNumber, string placeName, decimal prizeAmount, double prizePercentage)
		{
			bool output = true;


			if (placeNumber < 1)
			{
				output = false;
			}

			if (placeName.Length == 0)
			{
				output = false;
			}

			if (prizeAmount <= 0 && prizePercentage <= 0)
			{
				output = false;
			}

			if (prizePercentage < 0 || prizePercentage > 100)
			{
				output = false;
			}

			return output;
		}
	}
}