server/util/ServerGlobalOpsSettingsCache.cs

@@ -0,0 +1,72 @@
+using System;
+using System.Linq;
+using Sockeye.Models;
+
+namespace Sockeye.Util
+{
+
+    /// <summary>
+    /// Contains static mirror copy in memory of Operations related settings stored in db 
+    /// that are accessed frequently by server
+    /// </summary>
+    internal static class ServerGlobalOpsSettingsCache
+    {
+        //BOOT flag, set during boot and 
+        //is used to control generator from starting
+        internal static bool BOOTING { get; set; }
+
+        //False if db server is detected to be down
+        //is used to control generator from processing
+        internal static bool DBAVAILABLE { get; set; }
+
+        internal static GlobalOpsBackupSettings Backup { get; set; }
+        internal static GlobalOpsNotificationSettings Notify { get; set; }
+        internal static DateTime NextBackup { get; set; }
+        /// <summary>
+        /// Populate and / or create the settings
+        /// </summary>     
+        internal static void Initialize(AyContext ct = null)
+        {
+            //fetch or create as not provided (meaning this was called from Startup.cs)
+            Backup = ct.GlobalOpsBackupSettings.FirstOrDefault(z => z.Id == 1);
+            if (Backup == null)
+            {
+                Backup = new GlobalOpsBackupSettings();
+                ct.GlobalOpsBackupSettings.Add(Backup);
+                ct.SaveChanges();
+            }
+            NextBackup = FileUtil.MostRecentAutomatedBackupFileDate();
+            SetNextBackup();
+
+
+            Notify = ct.GlobalOpsNotificationSettings.FirstOrDefault(z => z.Id == 1);
+            if (Notify == null)
+            {
+                Notify = new GlobalOpsNotificationSettings();
+                ct.GlobalOpsNotificationSettings.Add(Notify);
+                ct.SaveChanges();
+            }
+        }
+
+        internal static void SetNextBackup()
+        {
+            DateTime utcNow = DateTime.UtcNow;
+            //Has last backup run more than 24 hours ago?
+            if (NextBackup < utcNow.AddHours(-24))
+            {
+                //set it to today then
+                NextBackup = new DateTime(utcNow.Year, utcNow.Month, utcNow.Day, Backup.BackupTime.Hour, Backup.BackupTime.Minute, 0, DateTimeKind.Utc);
+                //Make sure next backup is in the future
+                if (NextBackup < utcNow)
+                    NextBackup = NextBackup.AddDays(1);
+            }
+            else
+            {
+                //less than 24 hours, set it to tomorrow
+                NextBackup = new DateTime(utcNow.Year, utcNow.Month, utcNow.Day, Backup.BackupTime.Hour, Backup.BackupTime.Minute, 0, DateTimeKind.Utc);
+                NextBackup = NextBackup.AddDays(1);
+            }
+        }
+
+    }//eoc
+}//eons