Add progress reporting to CLI

Closes #143

DiscordChatExporter.Cli/Internal/InlineProgress.cs

@@ -0,0 +1,28 @@
+using System;
+
+namespace DiscordChatExporter.Cli.Internal
+{
+    internal class InlineProgress : IProgress<double>, IDisposable
+    {
+        private readonly int _posX;
+        private readonly int _posY;
+
+        public InlineProgress()
+        {
+            _posX = Console.CursorLeft;
+            _posY = Console.CursorTop;
+        }
+
+        public void Report(double progress)
+        {
+            Console.SetCursorPosition(_posX, _posY);
+            Console.WriteLine($"{progress:P1}");
+        }
+
+        public void Dispose()
+        {
+            Console.SetCursorPosition(_posX, _posY);
+            Console.WriteLine("Completed ✓");
+        }
+    }
+}

DiscordChatExporter.Cli/Verbs/ExportChannelVerb.cs

@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using System.Threading.Tasks;
+using DiscordChatExporter.Cli.Internal;
 using DiscordChatExporter.Cli.Verbs.Options;
 using DiscordChatExporter.Core.Helpers;
 using DiscordChatExporter.Core.Services;
@@ -28,9 +29,13 @@ namespace DiscordChatExporter.Cli.Verbs
             if (Options.MessageGroupLimit > 0)
                 settingsService.MessageGroupLimit = Options.MessageGroupLimit;
 
+            // Track progress
+            Console.Write($"Exporting channel [{Options.ChannelId}]... ");
+            using (var progress = new InlineProgress())
+            {
                 // Get chat log
                 var chatLog = await dataService.GetChatLogAsync(Options.GetToken(), Options.ChannelId,
-                Options.After, Options.Before);
+                    Options.After, Options.Before, progress);
 
                 // Generate file path if not set or is a directory
                 var filePath = Options.OutputPath;
@@ -46,9 +51,7 @@ namespace DiscordChatExporter.Cli.Verbs
 
                 // Export
                 exportService.ExportChatLog(chatLog, filePath, Options.ExportFormat, Options.PartitionLimit);
-
+            }
-            // Print result
-            Console.WriteLine($"Exported chat to [{filePath}]");
         }
     }
 }

DiscordChatExporter.Cli/Verbs/ExportDirectMessagesVerb.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 using System.Net;
 using System.Threading.Tasks;
+using DiscordChatExporter.Cli.Internal;
 using DiscordChatExporter.Cli.Verbs.Options;
 using DiscordChatExporter.Core.Exceptions;
 using DiscordChatExporter.Core.Helpers;
@@ -42,12 +43,13 @@ namespace DiscordChatExporter.Cli.Verbs
             {
                 try
                 {
-                    // Print current channel name
+                    // Track progress
-                    Console.WriteLine($"Exporting chat from [{channel.Name}]...");
+                    Console.Write($"Exporting channel [{channel.Name}]... ");
-
+                    using (var progress = new InlineProgress())
+                    {
                         // Get chat log
                         var chatLog = await dataService.GetChatLogAsync(Options.GetToken(), channel,
-                        Options.After, Options.Before);
+                            Options.After, Options.Before, progress);
 
                         // Generate default file name
                         var fileName = ExportHelper.GetDefaultExportFileName(Options.ExportFormat, chatLog.Guild,
@@ -58,9 +60,7 @@ namespace DiscordChatExporter.Cli.Verbs
 
                         // Export
                         exportService.ExportChatLog(chatLog, filePath, Options.ExportFormat, Options.PartitionLimit);
-
+                    }
-                    // Print result
-                    Console.WriteLine($"Exported chat to [{filePath}]");
                 }
                 catch (HttpErrorStatusCodeException ex) when (ex.StatusCode == HttpStatusCode.Forbidden)
                 {

DiscordChatExporter.Cli/Verbs/ExportGuildVerb.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 using System.Net;
 using System.Threading.Tasks;
+using DiscordChatExporter.Cli.Internal;
 using DiscordChatExporter.Cli.Verbs.Options;
 using DiscordChatExporter.Core.Exceptions;
 using DiscordChatExporter.Core.Helpers;
@@ -43,12 +44,13 @@ namespace DiscordChatExporter.Cli.Verbs
             {
                 try
                 {
-                    // Print current channel name
+                    // Track progress
-                    Console.WriteLine($"Exporting chat from [{channel.Name}]...");
+                    Console.Write($"Exporting channel [{channel.Name}]... ");
-
+                    using (var progress = new InlineProgress())
+                    {
                         // Get chat log
                         var chatLog = await dataService.GetChatLogAsync(Options.GetToken(), channel,
-                        Options.After, Options.Before);
+                            Options.After, Options.Before, progress);
 
                         // Generate default file name
                         var fileName = ExportHelper.GetDefaultExportFileName(Options.ExportFormat, chatLog.Guild,
@@ -59,9 +61,7 @@ namespace DiscordChatExporter.Cli.Verbs
 
                         // Export
                         exportService.ExportChatLog(chatLog, filePath, Options.ExportFormat, Options.PartitionLimit);
-
+                    }
-                    // Print result
-                    Console.WriteLine($"Exported chat to [{filePath}]");
                 }
                 catch (HttpErrorStatusCodeException ex) when (ex.StatusCode == HttpStatusCode.Forbidden)
                 {