From 422909352e6167c8d3c79802f87daf115e1c4e5d Mon Sep 17 00:00:00 2001
From: ProfessionalUwU <andreas.fuhry@gmail.com>
Date: Fri, 16 Jun 2023 01:58:35 +0200
Subject: [PATCH] Find new packages We find new packages by getting the folder
 names in the DBPath local

---
 src/Pacserver/Pacserver.cs | 20 +++++++++++++++++---
 src/Pacserver/Program.cs   | 15 ++++++++++++++-
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/src/Pacserver/Pacserver.cs b/src/Pacserver/Pacserver.cs
index 5fc9a72..8ce63f4 100644
--- a/src/Pacserver/Pacserver.cs
+++ b/src/Pacserver/Pacserver.cs
@@ -3,8 +3,8 @@ using System.Text.RegularExpressions;
 
 namespace Pacserver.Utils;
 public class PacserverUtils {
-    public string pacmanCacheDirectory { get; set; } = string.Empty;
-    public static string pacmanDatabaseDirectory { get; set; } = string.Empty;
+    public string pacmanCacheDirectory = string.Empty;
+    public static string pacmanDatabaseDirectory = string.Empty;
     public static List<String> pathsToDetermine = new List<String>() { "CacheDir", "DBPath" };
     public void readPacmanConfig() {
         using (StreamReader file = new StreamReader("/etc/pacman.conf")) {
@@ -36,8 +36,22 @@ public class PacserverUtils {
         }
     }
 
-    public void checkForNewerPackagesAndDatabases() {
+    private List<String> packageNamesAndVersion = new List<String>();
+    public void getEveryPackageNameAndVersionViaFolderName(string filePath) {
+        string[] directories = Directory.GetDirectories(pacmanDatabaseDirectory + "local/");
+        foreach (string directory in directories) {
+            packageNamesAndVersion.Add(new DirectoryInfo(directory).Name);
+        }
+        File.WriteAllLines(filePath, packageNamesAndVersion);
+    }
 
+    public List<String> newerPackages = new List<String>();
+    public void checkForNewerPackages() {
+        if (File.Exists("/tmp/before_update.txt") && File.Exists("/tmp/after_update.txt")) {
+            newerPackages = File.ReadAllLines("/tmp/after_update.txt").Except(File.ReadLines("/tmp/before_update.txt")).ToList();
+        } else {
+            throw new FileNotFoundException("Necessary files could not be found");
+        }
     }
 
     private static List<String> newerPackagesAndDatabases = new List<String>();
diff --git a/src/Pacserver/Program.cs b/src/Pacserver/Program.cs
index 9840ca8..c66eb3c 100644
--- a/src/Pacserver/Program.cs
+++ b/src/Pacserver/Program.cs
@@ -10,12 +10,25 @@ public class Program {
             return;
         }
 
+        PacserverUtils utils = new PacserverUtils();
+
         switch (args[0]) {
             case "determinePacmanCacheDirectory":
-                PacserverUtils utils = new PacserverUtils();
                 utils.readPacmanConfig();
                 Console.WriteLine(utils.pacmanCacheDirectory);
                 break;
+            case "before":
+                utils.readPacmanConfig();
+                utils.getEveryPackageNameAndVersionViaFolderName("/tmp/before_update.txt");
+                break;
+            case "after":
+                utils.readPacmanConfig();
+                utils.getEveryPackageNameAndVersionViaFolderName("/tmp/after_update.txt");
+                break;
+            case "diff":
+                utils.checkForNewerPackages();
+                Console.WriteLine(utils.newerPackages);
+                break;
             default:
                 Console.ForegroundColor = ConsoleColor.Red;
                 Console.WriteLine(args[0] + " is not a recognized option.");