Generate file name if given output path CLI argument is a directory

Closes #67

DiscordChatExporter.Cli/Verbs/ExportChatVerb.cs

@@ -38,9 +38,9 @@ namespace DiscordChatExporter.Cli.Verbs
 
             // Generate file path if not set
             var filePath = Options.FilePath;
-            if (filePath.IsBlank())
+            if (filePath == null || filePath.EndsWith("/") || filePath.EndsWith("\\"))
             {
-                filePath = $"{guild.Name} - {channel.Name}.{Options.ExportFormat.GetFileExtension()}"
+                filePath += $"{guild.Name} - {channel.Name}.{Options.ExportFormat.GetFileExtension()}"
                     .Replace(Path.GetInvalidFileNameChars(), '_');
             }
 

DiscordChatExporter.Core/Services/ExportService.cs

@@ -2,6 +2,7 @@
 using DiscordChatExporter.Core.Models;
 using Scriban;
 using Scriban.Runtime;
+using Tyrrrz.Extensions;
 
 namespace DiscordChatExporter.Core.Services
 {
@@ -37,6 +38,11 @@ namespace DiscordChatExporter.Core.Services
             var templateModel = new TemplateModel(format, log, _settingsService.DateFormat);
             context.PushGlobal(templateModel.GetScriptObject());
 
+            // Create directory
+            var dirPath = Path.GetDirectoryName(filePath);
+            if (dirPath.IsNotBlank())
+                Directory.CreateDirectory(dirPath);
+
             // Render output
             using (var output = File.CreateText(filePath))
             {