Merge pull request #18 from Suptzs/Development

Basic implementation of an online lottery

FitNesseRoot/OnlineLottery/SettlementTestSuite.wiki

@@ -0,0 +1 @@
+!contents -R

FitNesseRoot/OnlineLottery/SettlementTestSuite/OneWinnerSixBalls.wiki

@@ -0,0 +1,22 @@
+---
+Test
+---
+|Tickets in the Draw|
+|Player|Numbers|Value|
+|Ford|2,11,22,33,39,18|50|
+|Arthur|1,5,4,7,9,20|50|
+|Trisha|10,21,30,6,16,26|50|
+|Marvin|12,13,14,15,16,17|50|
+
+|Draw results are|1,5,4,20,9,7|
+
+|Prize Distribution|
+|Winning Tickets?|Prize Money?|
+|1 |68   |
+
+|Accounts after the Draw|
+|Player|Balance?|
+|Arthur|118|
+|Ford|50|
+|Trisha|50|
+|Marvin|50|

FitNesseRoot/OnlineLottery/SettlementTestSuite/SetUp.wiki

@@ -0,0 +1,8 @@
+!|OnlineLottery.Test.SettlementTest|
+
+|Accounts before the draw|
+|player|balance|
+|Arthur|100|
+|Ford|100|
+|Trisha|100|
+|Marvin|100|

FitNesseRoot/OnlineLottery/SettlementTestSuite/TwoWinnersFourBalls.wiki

@@ -0,0 +1,22 @@
+---
+Test
+---
+|Tickets in the Draw|
+|Player|Numbers|Value|
+|Ford|2,11,22,33,39,18|50|
+|Arthur|1,5,4,7,9,20|80|
+|Trisha|10,1,20,5,4,11|20|
+|Marvin|12,13,14,15,16,17|50|
+
+|Draw results are|1,5,4,20,38,37|
+
+|Prize Distribution|
+|Winning Tickets?|Prize Money?|
+|2 |2, 8   |
+
+|Accounts after the Draw|
+|Player|Balance?|
+|Arthur|28|
+|Ford|50|
+|Trisha|82|
+|Marvin|50|

FitNesseRoot/OnlineLottery/TicketReview.wiki

@@ -0,0 +1,4 @@
+---
+Suite
+---
+!contents -R

FitNesseRoot/OnlineLottery/TicketReview/SetUp.wiki

@@ -0,0 +1,5 @@
+!|OnlineLottery.Test.ReviewTickets|
+
+|Draw on |01.01.2017| is open|
+
+|Player|john|opens account with|100|dollars|

FitNesseRoot/OnlineLottery/TicketReview/SeveralTicketsOneDraw.wiki

@@ -0,0 +1,14 @@
+---
+Test
+---
+|Player|john|buys a ticket with numbers|1,3,4,5,8,10|for draw on|01.01.2017|
+
+|Player|john|buys a ticket with numbers|2,4,5,8,10,12|for draw on|01.01.2017|
+
+|Player|john|buys|5|tickets with numbers|3,6,9,12,15,18|for draw on|01.01.2017|
+
+|Player|john|lists open tickets|
+|Drawdate|Numbers|Value|
+|01.01.2017|1,3,4,5,8,10|10|
+|01.01.2017|2,4,5,8,10,12|10|
+|01.01.2017|3,6,9,12,15,18|50|

FitNesseRoot/OnlineLottery/TicketReview/SeveralTicketsTwoDraws.wiki

@@ -0,0 +1,24 @@
+---
+Test
+---
+|Draw on|02.01.2017|is open|
+
+|Draw on|03.01.2017|is open|
+
+|Player|john|buys a ticket with numbers|1,3,4,5,8,10|for draw on|02.01.2017|
+
+|Player|john|buys a ticket with numbers|1,3,4,5,8,10|for draw on|01.01.2017|
+
+|Player|john|buys|5|tickets with numbers|3,6,9,12,15,18|for draw on|01.01.2017|
+
+|Player|john|lists tickets for draw on|01.01.2017|
+|value|numbers|
+|10|1,3,4,5,8,10|
+|50|3,6,9,12,15,18|
+
+|Player|john|lists tickets for draw on|02.01.2017|
+|value|numbers|
+|10|1,3,4,5,8,10|
+
+|Player|john|lists tickets for draw on|03.01.2017|
+|value|numbers|

FitNesseRoot/OnlineLottery/TicketReview/TwoAccountsOneDraw.wiki

@@ -0,0 +1,16 @@
+---
+Test
+---
+|Player|tom|opens account with|50|dollars|
+
+|Player|john|buys a ticket with numbers|1,3,4,5,8,10|for draw on|01/01/2017|
+
+|Player|tom|buys a ticket with numbers|2,4,5,8,10,12|for draw on|01/01/2017|
+
+|Player|john|lists tickets for draw on|01/01/2017|
+|value|numbers|
+|10|1,3,4,5,8,10|
+
+|Player|tom|lists tickets for draw on|01/01/2017|
+|value|numbers|
+|10|2,4,5,8,10,12|

FitNesseRoot/OnlineLottery/TicketReview/WinningsRecordedCorrectly.wiki

@@ -0,0 +1,21 @@
+---
+Test
+---
+|Draw on|02.01.2017|is open|
+
+|Player|john|buys a ticket with numbers|1,3,4,5,8,10|for draw on|01.01.2017|
+
+|Player|john|buys a ticket with numbers|1,3,4,5,8,10|for draw on|02.01.2017|
+
+|Player|john|buys|5|tickets with numbers|3,6,9,12,15,18|for draw on|01.01.2017|
+
+|Numbers|1,3,4,5,31,32|are drawn on|01.01.2017|
+
+|Player|john|lists tickets for draw on|01.01.2017|
+|value|numbers|is open|winnings|
+|10|1,3,4,5,8,10|false|3|
+|50|3,6,9,12,15,18|false|0|
+
+|Player|john|lists open tickets|
+|drawdate|value|numbers|
+|02.01.2017|10|1,3,4,5,8,10|

FitNesseRoot/RecentChanges.wiki

@@ -1,3 +1,13 @@
+|OnlineLottery.TicketReview.SeveralTicketsOneDraw||23:18:36 Mo, Apr 10, 2017|
+|OnlineLottery.TicketReview.WinningsRecordedCorrectly||22:36:05 Mo, Apr 10, 2017|
+|OnlineLottery.TicketReview.SeveralTicketsTwoDraws||22:19:41 Mo, Apr 10, 2017|
+|OnlineLottery.TicketReview.TwoAccountsOneDraw||22:05:37 Mo, Apr 10, 2017|
+|OnlineLottery.TicketReview.SetUp||21:11:28 Mo, Apr 10, 2017|
+|OnlineLottery.TicketReview||21:09:28 Mo, Apr 10, 2017|
+|OnlineLottery.SettlementTestSuite.OneWinnerSixBalls||24:49:38 Mo, Apr 10, 2017|
+|OnlineLottery.SettlementTestSuite.TwoWinnersFourBalls||24:49:01 Mo, Apr 10, 2017|
+|OnlineLottery.SettlementTestSuite.SetUp||22:16:55 So, Apr 09, 2017|
+|OnlineLottery.SettlementTestSuite||22:13:42 So, Apr 09, 2017|
 |OnlineLottery.PurchaseTicketTestSuite.NotEnoughMoney||22:14:46 Do, Apr 06, 2017|
 |OnlineLottery.PurchaseTicketTestSuite.NegativeAmountOfTickets||22:14:26 Do, Apr 06, 2017|
 |OnlineLottery.PurchaseTicketTestSuite.MoreThanSixNumbers||22:14:04 Do, Apr 06, 2017|

FitNesseRoot/properties

@@ -1,3 +1,3 @@
 ##FitNesse properties
-#Thu Apr 06 21:36:03 CEST 2017
-Version=vUnknown
+#Mon Apr 10 18:54:43 CEST 2017
+Version=v20161106

OnlineLottery/DrawManager.cs

@@ -1,10 +1,13 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 
 namespace OnlineLottery
 {
     public class DrawManager : IDrawManager
     {
+        public decimal OperatorDeductionFactor => 0.5m;
+
         private readonly IPlayerManager _playerManager;
         private readonly Dictionary<DateTime, Draw> _draws = new Dictionary<DateTime, Draw>();
 
@@ -28,13 +31,69 @@ public IDraw CreateDraw(DateTime drawDate)
         public void PurchaseTicket(DateTime drawDate, int playerId, int[] numbers, decimal value)
         {
             if (!_draws.ContainsKey(drawDate)) throw new DrawNotOpenException();
-            if(numbers.Length != 6) throw new WrongAmountOfNumbersException();
-            if(value < 0) throw new InvalidPurchaseException();
+            if (numbers.Length != 6) throw new WrongAmountOfNumbersException();
+            if (value < 0) throw new InvalidPurchaseException();
 
             var d = _draws[drawDate];
             var player = _playerManager.GetPlayer(playerId);
             _playerManager.AdjustBalance(playerId, -value);
             d.AddTicket(new Ticket(player, drawDate, numbers, value));
         }
+
+        public IList<ITicket> GetOpenTickets(int playerId)
+            => (from draw in _draws
+                from ticket in draw.Value.Tickets
+                where ticket.Holder.PlayerId == playerId && ticket.IsOpen
+                select ticket).ToList();
+
+        public IList<ITicket> GetTickets(DateTime drawDate, int playerId)
+            => (from draw in _draws
+                from ticket in draw.Value.Tickets
+                where ticket.Holder.PlayerId == playerId && ticket.DrawDate == drawDate
+                select ticket).ToList();
+
+        public void SettleDraw(DateTime drawDate, int[] results)
+        {
+            var d = _draws[drawDate];
+            d.IsOpen = false;
+            var ticketCategories = SplitTicketsIntoCategories(results, d.Tickets);
+            for (var commonNumbers = 0; commonNumbers <= results.Length; commonNumbers++)
+                SettleTicketCategories(commonNumbers, d, ticketCategories[commonNumbers]);
+        }
+
+        private void SettleTicketCategories(int commonNumbers, IDraw draw, List<ITicket> tickets)
+        {
+            var prizePool = new WinningsCalculator().GetPrizePool(commonNumbers, draw.TotalPoolSize * (1 - OperatorDeductionFactor));
+            var totalTicketValue = GetTotalTicketValue(tickets);
+            foreach (Ticket t in tickets)
+                SettleTicket(t, prizePool, totalTicketValue);
+        }
+
+        private void SettleTicket(Ticket t, decimal prizePool, decimal totalTicketValue)
+        {
+            t.IsOpen = false;
+            if (prizePool <= 0) return;
+
+            t.Winnings = t.Value * prizePool / totalTicketValue;
+            _playerManager.AdjustBalance(t.Holder.PlayerId, t.Winnings);
+        }
+
+        private static Dictionary<int, List<ITicket>> SplitTicketsIntoCategories(int[] results, IEnumerable<ITicket> tickets)
+        {
+            var ticketCategories = new Dictionary<int, List<ITicket>>();
+
+            for (var i = 0; i <= results.Length; i++)
+                ticketCategories[i] = new List<ITicket>();
+
+            foreach(var t in tickets)
+                ticketCategories[CountCommonElements(t.Numbers, results)].Add(t);
+
+            return ticketCategories;
+        }
+
+        private static int CountCommonElements(IEnumerable<int> ticketNumbers, int[] results)
+            => ticketNumbers.Sum(ticketNumber => results.Count(result => result == ticketNumber));
+
+        private static decimal GetTotalTicketValue(IEnumerable<ITicket> tickets) => tickets.Sum(t => t.Value);
     }
 }

OnlineLottery/IDrawManager.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 
 namespace OnlineLottery
 {
@@ -22,5 +23,9 @@ public interface IDrawManager
         IDraw GetDraw(DateTime date);
         IDraw CreateDraw(DateTime drawDate);
         void PurchaseTicket(DateTime drawDate, int playerId, int[] numbers, decimal value);
+        void SettleDraw(DateTime drawDate, int[] results);
+        IList<ITicket> GetOpenTickets(int playerId);
+        decimal OperatorDeductionFactor { get; }
+        IList<ITicket> GetTickets(DateTime drawDate, int playerId);
     }
 }

OnlineLottery/ITicket.cs

@@ -8,5 +8,7 @@ public interface ITicket
         IPlayerInfo Holder { get; }
         DateTime DrawDate { get; }
         decimal Value { get; }
+        bool IsOpen { get; }
+        decimal Winnings { get; }
     }
 }

OnlineLottery/OnlineLottery.csproj

@@ -52,6 +52,8 @@
     <Compile Include="PlayerRegistrationInfo.cs" />
     <Compile Include="Test\PrizeDistributionForPayoutPool.cs" />
     <Compile Include="Test\PurchaseTicket.cs" />
+    <Compile Include="Test\ReviewTickets.cs" />
+    <Compile Include="Test\SettlementTest.cs" />
     <Compile Include="Ticket.cs" />
     <Compile Include="WinningsCalculator.cs" />
   </ItemGroup>

OnlineLottery/Test/ReviewTickets.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using fitlibrary;
+
+namespace OnlineLottery.Test
+{
+    public class ReviewTickets : DoFixture
+    {
+        private readonly IDrawManager _drawManager;
+        private readonly IPlayerManager _playerManager;
+
+        public ReviewTickets()
+        {
+            _playerManager = new PlayerManager();
+            _drawManager = new DrawManager(_playerManager);
+        }
+
+        public void DrawOnIsOpen(DateTime drawDate) => _drawManager.CreateDraw(drawDate);
+
+        public void PlayerOpensAccountWithDollars(string username, decimal balance)
+            => _playerManager.AdjustBalance(_playerManager.RegisterPlayer(new PlayerRegistrationInfo
+            {
+                Username = username,
+                Name = username,
+                Password = "XXXXXX"
+            }), balance);
+
+        public void PlayerBuysATicketWithNumbersForDrawOn(string username, int[] numbers, DateTime drawDate)
+            => PlayerBuysTicketsWithNumbersForDrawOn(username, 1, numbers, drawDate);
+
+        public void PlayerBuysTicketsWithNumbersForDrawOn(string username, int tickets, int[] numbers,
+            DateTime drawDate) => _drawManager.PurchaseTicket(drawDate, _playerManager.GetPlayer(username).PlayerId, numbers, 10 * tickets);
+
+        public IList<ITicket> PlayerListsOpenTickets(string username)
+            => _drawManager.GetOpenTickets(_playerManager.GetPlayer(username).PlayerId);
+
+        public IList<ITicket> PlayerListsTicketsForDrawOn(string username, DateTime drawDate)
+            => _drawManager.GetTickets(drawDate, _playerManager.GetPlayer(username).PlayerId);
+
+        public void NumbersAreDrawnOn(int[] numbers, DateTime drawDate) => _drawManager.SettleDraw(drawDate, numbers);
+    }
+}