Finished and polished project (added files)

2026-04-22 06:16:18 +03:00 · 2019-11-18 23:40:22 +03:00
parent 43c983b5fa
commit a53449ea70
9 changed files with 534 additions and 0 deletions
@@ -0,0 +1,101 @@
+using System;
+using System.IO;
+
+namespace GZipTest
+{
+    class Program
+    {
+        static DateTime start = DateTime.Now;
+        static IProcessingModule module;
+
+        static int Main(string[] args)
+        {
+            try
+            {
+                //Validating input parameters
+                if (args.Length != 3)
+                    throw new InvalidDataException("Invalid parameters set.\nUsage: NewWinRar.exe [compress|decompress] [source file name] [destination file name]");
+                if (!File.Exists(args[1]))
+                    throw new FileNotFoundException("The source file not found. Make sure it is place in the program's directory and has the same name. Stating extension is required");
+
+                //Instatiating module
+                switch (args[0].ToLower())
+                {
+                    case "compress":
+                        Console.WriteLine("Compressing file...");
+                        module = new CompressionModule();
+                        break;
+                    case "decompress":
+                        Console.WriteLine("Unpacking file...");
+                        module = new DecompressionModule();
+                        break;
+                    default:
+                        throw new InvalidDataException("Invalid parameter. The first parameter must be 'compress' or 'decompress'");
+                }
+
+                //Subscribing to events
+                module.ProgressChanged += SetProgress;
+                module.Complete += Complete;
+                module.ErrorOccured += Module_ErrorOccured;
+
+                //Executing module
+                module.Run(args[1], args[2]);
+
+                return 0;
+            }
+            //Catching errors and displaying them
+            catch (Exception e)
+            {
+                Console.Error.WriteLine($"\n\n{e.ToString()}\n" + e.InnerException != null && e.InnerException != e ? $"\n{e.InnerException.ToString()}\n" : "");
+                return 1;
+            }
+        }
+
+        private static void Module_ErrorOccured(object sender, ErrorEventArgs e)
+        {
+            Console.Error.WriteLine("Error has occured. Threads tremination initiated");
+            Console.Error.WriteLine($"\n\n{e.GetException().ToString()}\n");
+            module.Complete -= Complete;
+            Console.WriteLine("Press any key to continue...");
+            Console.ReadKey();
+            module.Stop();
+        }
+
+        /// <summary>
+        /// Displays complete message and post analysis
+        /// </summary>
+        /// <param name="size">Represents original file size in MB</param>
+        /// <param name="e">Not used</param>
+        private static void Complete(object size, EventArgs e)
+        {
+            TimeSpan elapsed = DateTime.Now - start;
+            Console.WriteLine($"\nDone\nProcessed {size} MB within {elapsed.Minutes} minutes {elapsed.Seconds} seconds\nPress any key to continue...");
+            Console.ReadKey();
+        }
+
+        /// <summary>
+        /// Displaying progress bar which represents current workflow position
+        /// </summary>
+        /// <param name="percentage">Integer from 0 to 100. Represents amount of completed work</param>
+        public static void SetProgress(long done, long totalSegments)
+        {
+            TimeSpan elapsed = DateTime.Now - start;
+            //Border braces
+            Console.CursorLeft = 0;
+            Console.Write("[");
+            Console.CursorLeft = 21;
+            Console.Write("]");
+
+            //Progress bar
+            for (int i = 0; i < done * 20 / totalSegments; i++)
+            {
+                Console.CursorLeft = i + 1;
+                Console.Write("■");
+            }
+
+            //Percentage
+            Console.CursorLeft = 23;
+            Console.Write($"{done * 100 / totalSegments}%   {done} of {totalSegments} blocks [{elapsed.ToString(@"hh\:mm\:ss")}]");
+        }
+    }
+}