Lots of additions and changes

TOOHUCardAPI/Data/Services/StoreService.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using TOOHUCardAPI.Data.Models;
+using TOOHUCardAPI.Data.Repositories;
+using TOOHUCardAPI.DTO;
+
+namespace TOOHUCardAPI.Data.Services
+{
+    public class StoreService
+    {
+        private readonly ILogger<StoreService> _logger;
+        private readonly UserRepository _userRepository;
+
+        public StoreService(ILogger<StoreService> logger, UserRepository userRepository)
+        {
+            _logger = logger;
+            _userRepository = userRepository;
+        }
+
+        private void AddPoints(int points, User user)
+        {
+            user.Point = Math.Max(0, user.Point + points);
+            _userRepository.UpdateUser(user);
+            _logger.LogInformation($"User with steamid {user.SteamId} was given {points} points. New total: {user.Point}");
+        }
+
+        public async Task<int> PurchaseMagicKey(int amt, string steamId)
+        {
+            int totalCost = AppSettings.PointsPerKey * amt;
+            amt = Math.Clamp(amt, 0, AppSettings.MaxKeyPurchaseAmount);
+            User user = _userRepository.GetUser(steamId);
+            if (user == null)
+            {
+                throw new InvalidUserException();
+            }
+            if (user.Point < totalCost)
+            {
+                throw new InsufficientPointsException();
+            }
+
+            AddPoints(-totalCost, user);
+            user.KeyTotal += amt;
+            _userRepository.UpdateUser(user);
+            _logger.LogInformation($"User with steamid {user.SteamId} purchased {amt} keys for {totalCost} points. New point value is {user.Point}");
+            return totalCost;
+        }
+
+        public async Task<int> GiveFirstWinBonus(string steamId)
+        {
+            User user = _userRepository.GetUser(steamId);
+            if (user == null)
+            {
+                throw new InvalidUserException();
+            }
+
+            if (user.LastFirstWin.AddDays(1) > DateTime.Now)
+            {
+                throw new NotFirstWinException();
+            }
+            AddPoints(AppSettings.FirstWinBonusPoints, user);
+            user.LastFirstWin = DateTime.Now;
+            _userRepository.UpdateUser(user);
+            _logger.LogInformation($"User with steamid {user.SteamId} received first win of the day bonus, earning {AppSettings.FirstWinBonusPoints} points. New value: {user.Point}");
+            return AppSettings.FirstWinBonusPoints;
+        }
+    }
+
+    public class InsufficientPointsResponse : AbstractResponse
+    {
+        public InsufficientPointsResponse()
+        {
+            Code = "0002";
+            Message = "Insufficient points";
+        }
+    }
+
+    public class NotFirstWinResponse : AbstractResponse
+    {
+        public NotFirstWinResponse()
+        {
+            Code = "0003";
+            Message = "Not first win of the day";
+        }
+    }
+
+}