Add init logger

BeeWeatherPollenTracker/BeeWeatherPollenTracker.csproj

@@ -60,6 +60,7 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="LoggerManager.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
@@ -67,6 +68,7 @@
     <None Include="App.config" />
     <None Include="packages.config" />
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>

BeeWeatherPollenTracker/LoggerManager.cs

+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BeeWeatherPollenTracker
+{
+    public class LoggerManager
+    {
+        private static LoggerManager Logger = null;
+        private String Path = "";
+        private FileStream fs = null;
+
+        public LoggerManager()
+        {
+            Path = ".\\logfile.txt";
+            if (!File.Exists(Path)) // Check if the file is existing and create him if not.
+            {
+                fs = File.Create(Path);
+            }
+            else
+            {
+                fs = File.OpenWrite(Path);
+            }
+        }
+
+        public static LoggerManager GetInstance()
+        {
+            if (Logger == null)
+            {
+                Logger = new LoggerManager();
+            }
+            return Logger;
+        }
+
+        public void WriteInFile(Exception e)
+        {
+            DateTime dt = DateTime.Now;
+            string res = dt.ToString() + " : "+ e.Message ;
+            byte[] data = Encoding.UTF8.GetBytes(res);
+
+            fs.Write(data, 0, data.Length);
+        }
+    }
+}

BeeWeatherPollenTracker/Program.cs

@@ -12,23 +12,34 @@ namespace BeeWeatherPollenTracker
         private const string OPEN_WEATHER_MAP_API_KEY = "3f80e65ed0609e7e52737e65d522aed8";
         private const double FORECAST_LENGTH = 3.0;
 
+        static LoggerManager logs = null;
         private static void Main(string[] args)
         {
             // Set up API KEY
             ClientSettings.SetApiKey(OPEN_WEATHER_MAP_API_KEY);
 
+            // Set up the logger manager
+            logs = LoggerManager.GetInstance();
+            
             // Retrieve forecast data from from OWM API
-            var cityId = int.Parse(ConfigurationManager.AppSettings["CityId"]);
-            var apiResults = FiveDaysForecast.GetByCityId(cityId);
-            if (!apiResults.Success)
+            try
             {
-                throw new ApplicationException(apiResults.Message);
-            }
+                var cityId = int.Parse(ConfigurationManager.AppSettings["CityId"]);
+                var apiResults = FiveDaysForecast.GetByCityId(cityId);
+                if (!apiResults.Success)
+                {
+                    throw new ApplicationException(apiResults.Message);
+                }
 
-            // Filter: keep only 3 next days forecast
-            var forecast = apiResults.Items
-                .Where(x => x.Date < DateTime.Now.AddDays(FORECAST_LENGTH))
-                .ToList();
+                // Filter: keep only 3 next days forecast
+                var forecast = apiResults.Items
+                    .Where(x => x.Date < DateTime.Now.AddDays(FORECAST_LENGTH))
+                    .ToList();
+            }
+            catch (Exception e)
+            {
+                logs.WriteInFile(e);
+            }
         }
     }
 }
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