Implemented the CurrentTheaterScheduleDataFileManager

Melody49Notifier/DataAbstraction/CurrentTheaterScheduleDataFileManager.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Melody49Notifier.Models;
+using Microsoft.Azure.WebJobs.Host;
+using System.IO;
+using Newtonsoft.Json;
+
+namespace Melody49Notifier.DataAbstraction
+{
+    public class CurrentTheaterScheduleDataFileManager : ICurrentTheaterScheduleDataFileManager
+    {
+        private readonly TraceWriter log;
+
+        public CurrentTheaterScheduleDataFileManager(TraceWriter log)
+        {
+            this.log = log;
+        }
+
+        static string HomeDirectory => Environment.GetEnvironmentVariable("HOME") ?? $"{Environment.GetEnvironmentVariable("HOMEDRIVE")}{Environment.GetEnvironmentVariable("HOMEPATH")}";
+        static string ApplicationDirectory => $"{HomeDirectory}\\data\\Melody49Notifier";
+        static string CurrentTheaterScheduleDataFile => $"{ApplicationDirectory}\\currentTheaterSchedule.json";
+
+        public TheaterSchedule SelectCurrentTheaterSchedule()
+        {
+            if (File.Exists(CurrentTheaterScheduleDataFile))
+            {
+                string currentTheaterScheduleDataFileContents = File.ReadAllText(CurrentTheaterScheduleDataFile);
+
+                log.Verbose($"Obtained Current Theater Schedule Data File Contents: {currentTheaterScheduleDataFileContents}");
+
+                return JsonConvert.DeserializeObject<TheaterSchedule>(currentTheaterScheduleDataFileContents);
+            }
+
+            log.Verbose($"The Current Theater Schedule Data File Does Not Exist.");
+
+            return null;
+        }
+
+        public void UpdateCurrentTheaterSchedule(TheaterSchedule theaterSchedule)
+        {
+            if (!Directory.Exists(ApplicationDirectory))
+            {
+                log.Verbose($"Creating Application Directory: ({ApplicationDirectory})");
+
+                Directory.CreateDirectory(ApplicationDirectory);
+            }
+
+            string serializedTheaterSchedule = JsonConvert.SerializeObject(theaterSchedule);
+
+            log.Verbose($"Saving the Current Theater Schedule: ({serializedTheaterSchedule})");
+
+            File.WriteAllText(CurrentTheaterScheduleDataFile, serializedTheaterSchedule);
+        }
+    }
+}