Initial commit

Program.cs

@@ -0,0 +1,79 @@
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using Microsoft.Extensions.Configuration;
+
+namespace RandomWallpaper
+{
+    internal class Program
+    {
+        private static Queue<String> previouslyDisplayed;
+        private static int maxDisplayQueueLength = 1000;
+
+        const String queueFileName = ".queue";
+
+        private static String[] targetDisplays = ["2"];
+        static void Main(string[] args)
+        {
+
+            var configurationBuilder = new ConfigurationBuilder();
+
+            configurationBuilder.SetBasePath(System.IO.Directory.GetCurrentDirectory());
+            configurationBuilder.AddJsonFile(path: "appSettings.json", optional: false, reloadOnChange: true);
+
+            var config = configurationBuilder.Build();
+            
+            if(File.Exists(queueFileName))
+                previouslyDisplayed = JsonSerializer.Deserialize<Queue<String>>(File.ReadAllText(queueFileName));
+            else
+                previouslyDisplayed = new Queue<String>();
+
+            String wallpaperFolder = config["WallpaperFolder"];
+            
+            foreach(String display in targetDisplays)
+            {
+                String id = "";
+                String randomPaper;
+                do
+                {
+                    randomPaper = GetRandomWallpaper(wallpaperFolder);
+                    id = GetWallhavenID(randomPaper);                    
+                }
+                while(previouslyDisplayed.Contains(id));
+                //set wallpaper
+                String setWallpaperScript = KDEScripts.GetChangeWallpaperScript(display, randomPaper);
+                KDEScripts.RunPlasmaScript(setWallpaperScript);
+                AddToDisplayed(randomPaper);
+            }
+
+            File.WriteAllText(queueFileName, JsonSerializer.Serialize(previouslyDisplayed));
+            Console.WriteLine("Changed");
+
+        }
+
+        static void AddToDisplayed(String fileName)
+        {
+            String pop;
+            String wallhavenID = GetWallhavenID(fileName);
+            if(previouslyDisplayed.Count >= maxDisplayQueueLength)
+                previouslyDisplayed.TryDequeue(out pop);
+            
+            previouslyDisplayed.Enqueue(wallhavenID);
+        }
+
+        static String GetRandomWallpaper(String path)
+        {
+            String[] wallpaperFiles = Directory.GetFiles(path);
+            int fileCount = wallpaperFiles.Length;
+            Random rand = new ();
+            int randomIndex = rand.Next(fileCount - 1);
+            return wallpaperFiles[randomIndex];
+        }
+
+        static String GetWallhavenID(String fileName)
+        {
+            String id = Regex.Match(fileName, @"wallhaven-(?<id>[^\.]+)").Groups["id"].Value;
+            return id;
+        }
+
+    }
+}