added some logging to SQLiteRepository.

#9

DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.cs

@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
-using System.Runtime.InteropServices.WindowsRuntime;
 using Interfaces;
 using SQLite.Net;
 using SQLite.Net.Platform.Win32;
@@ -12,15 +11,20 @@ namespace SQLiteRepository
     public class SQLiteRepository : IRepository
     {
         private readonly SQLiteConnection _connection;
+        private readonly ILogger _logger;
         private string _path = "flexitimedb.db";
 
-        public SQLiteRepository()
+        public SQLiteRepository(ILogger logger)
         {
+            if(logger == null) throw new ArgumentNullException(nameof(logger));
+            _logger = logger;
+
             _connection = new SQLiteConnection(new SQLitePlatformWin32(), _path);
 
             _connection.CreateTable<CardUniqueId>();
             _connection.CreateTable<UserIdentity>();
             _connection.CreateTable<TimeLogDb>();
+            _logger.Trace("Initialised SQLite Repository");
         }
 
         public UserList GetUsers(int pageNumber=-1, int pageSize=-1)
@@ -89,12 +93,14 @@ namespace SQLiteRepository
 
         public UserList Search(string searchParam)
         {
+            _logger.Trace("Searching SQLite database for the term: {0}", searchParam);
             var ret = new UserList();
             searchParam = string.Format("%{0}%", searchParam);
             var users = _connection.Query<UserIdentity>(
                 SQLiteProcedures.SEARCH_USER_LIST,
                 searchParam, searchParam);
 
+            _logger.Trace("Got {0} results for term: {1}", users.Count, searchParam);
             if (!users.Any())
             {
                 ret.PageNumber = 1;
@@ -120,6 +126,7 @@ namespace SQLiteRepository
                 }
                 ret.Users.Add(userObj);
             }
+            //TODO: figure out paging here. - should there be any?
             ret.PageSize = 20;
             ret.PageNumber = 1;
 
@@ -130,21 +137,33 @@ namespace SQLiteRepository
         {
             var ret = new User();
 
-            var users = _connection.Query<UserIdentity>(
+            try
-                SQLiteProcedures.GET_USER_BY_ID,
-                id);
-
-            if (!users.Any()) return ret;
-
-            var user = users.First();
-            ret = ChangeToUserObject(user);
-            var cards = _connection.Query<CardUniqueId>(
-                SQLiteProcedures.GET_CARDS_BY_USER_ID,
-                user.Id);
-
-            foreach (var card in cards)
             {
-                ret.AssociatedIdentifiers.Add(new Identifier { UniqueId = card.CardUId, IsAssociatedToUser = true, Id = card.Id});
+                var users = _connection.Query<UserIdentity>(
+                        SQLiteProcedures.GET_USER_BY_ID,
+                        id);
+
+                if (!users.Any()) return ret;
+
+                var user = users.First();
+                ret = ChangeToUserObject(user);
+                var cards = _connection.Query<CardUniqueId>(
+                    SQLiteProcedures.GET_CARDS_BY_USER_ID,
+                    user.Id);
+
+                foreach (var card in cards)
+                {
+                    ret.AssociatedIdentifiers.Add(new Identifier { UniqueId = card.CardUId, IsAssociatedToUser = true, Id = card.Id });
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex, "Error in GetUser with Id: {0}", id);
+                ret.UserId = id;
+                ret.FirstName = ret.LastName = string.Empty;
+                ret.HoursPerWeek = -1.0f;
+                ret.IsContractor = false;
+                ret.AssociatedIdentifiers.Clear();
             }
 
             return ret;
@@ -158,7 +177,14 @@ namespace SQLiteRepository
             var calendarWeek = GetIso8601CalendarWeek(now);
             ret.CalendarWeek = calendarWeek;
             ret.SelectedDate = now.Date;
-            ret.TimeLogs = GetTimeLogList(userId, calendarWeek, now.Year);
+            try
+            {
+                ret.TimeLogs = GetTimeLogList(userId, calendarWeek, now.Year);
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex, "Error in GetTimeLogs with Id: {0}", userId);
+            }
 
             return ret;
         }
@@ -169,7 +195,14 @@ namespace SQLiteRepository
             var calendarWeek = GetIso8601CalendarWeek(selectedDate);
             ret.CalendarWeek = calendarWeek;
 
-            ret.TimeLogs = GetTimeLogList(userId, calendarWeek, selectedDate.Year);
+            try
+            {
+                ret.TimeLogs = GetTimeLogList(userId, calendarWeek, selectedDate.Year);
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex, "Error in GetTimeLogs with Id: {0} and selected date: {1}", userId, selectedDate);
+            }
 
             return ret;
         }
@@ -400,6 +433,11 @@ namespace SQLiteRepository
                 DayOfWeek.Monday);
         }
 
+        /// <summary>
+        /// Check whether the specified DateTime is from yesterday or older.
+        /// </summary>
+        /// <param name="dt">the DateTime object to check is yesterday or older</param>
+        /// <returns>true - is yesterday or older.</returns>
         private bool IsLogDateTimeYesterdayOrOlder(DateTime dt)
         {
             return dt.Date.CompareTo(DateTime.Today.Date) < 0;