From 316e8c6ea8abebf02fbbc3e9466b4e2d5d75f9aa Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 3 Apr 2026 16:12:47 +0000
Subject: [PATCH] Simplify stdin reading: use ReadAllLinesAsync extension and
 Snowflake.Parse

Agent-Logs-Url: https://github.com/Tyrrrz/DiscordChatExporter/sessions/59c1113d-3c9c-4900-a9b0-5c6116ce7c75

Co-authored-by: Tyrrrz <1935960+Tyrrrz@users.noreply.github.com>
---
 .../Commands/ExportChannelsCommand.cs         | 23 +++----------------
 .../Utils/Extensions/ConsoleExtensions.cs     | 13 +++++++++++
 2 files changed, 16 insertions(+), 20 deletions(-)

diff --git a/DiscordChatExporter.Cli/Commands/ExportChannelsCommand.cs b/DiscordChatExporter.Cli/Commands/ExportChannelsCommand.cs
index fc5f4628..22e74c25 100644
--- a/DiscordChatExporter.Cli/Commands/ExportChannelsCommand.cs
+++ b/DiscordChatExporter.Cli/Commands/ExportChannelsCommand.cs
@@ -4,6 +4,7 @@ using CliFx;
 using CliFx.Binding;
 using CliFx.Infrastructure;
 using DiscordChatExporter.Cli.Commands.Base;
+using DiscordChatExporter.Cli.Utils.Extensions;
 using DiscordChatExporter.Core.Discord;
 using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
@@ -33,26 +34,8 @@ public partial class ExportChannelsCommand : ExportCommandBase
         var channelIds = new List<Snowflake>(ChannelIds);
         if (channelIds.Count == 0 && console.IsInputRedirected)
         {
-            var lineNumber = 0;
-            string? line;
-            while ((line = await console.Input.ReadLineAsync()) is not null)
-            {
-                lineNumber++;
-                line = line.Trim();
-                if (string.IsNullOrEmpty(line))
-                    continue;
-
-                var snowflake = Snowflake.TryParse(line);
-                if (snowflake is null)
-                {
-                    throw new CommandException(
-                        $"Invalid channel ID on line {lineNumber}: '{line}'. "
-                            + "Each line must contain a valid channel ID."
-                    );
-                }
-
-                channelIds.Add(snowflake.Value);
-            }
+            await foreach (var line in console.Input.ReadAllLinesAsync())
+                channelIds.Add(Snowflake.Parse(line));
         }
 
         if (channelIds.Count == 0)
diff --git a/DiscordChatExporter.Cli/Utils/Extensions/ConsoleExtensions.cs b/DiscordChatExporter.Cli/Utils/Extensions/ConsoleExtensions.cs
index d7d47c8c..80e40253 100644
--- a/DiscordChatExporter.Cli/Utils/Extensions/ConsoleExtensions.cs
+++ b/DiscordChatExporter.Cli/Utils/Extensions/ConsoleExtensions.cs
@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using System.IO;
 using System.Threading.Tasks;
 using CliFx.Infrastructure;
 using Spectre.Console;
@@ -61,4 +63,15 @@ internal static class ConsoleExtensions
             progressTask.StopTask();
         }
     }
+
+    public static async IAsyncEnumerable<string> ReadAllLinesAsync(this TextReader reader)
+    {
+        string? line;
+        while ((line = await reader.ReadLineAsync()) is not null)
+        {
+            line = line.Trim();
+            if (!string.IsNullOrEmpty(line))
+                yield return line;
+        }
+    }
 }