From 19cf6a679b1586cbb7f714df5688b0a7a7291bed Mon Sep 17 00:00:00 2001
From: "J.D. Purcell" <jdpurcell@gmail.com>
Date: Sat, 26 Feb 2022 14:41:48 -0500
Subject: [PATCH] Add .NET 6.0 target.

---
 RechatTool/Rechat.cs         | 47 +++++++++++++++++++++++++-----------
 RechatTool/RechatTool.csproj |  2 +-
 2 files changed, 34 insertions(+), 15 deletions(-)

diff --git a/RechatTool/Rechat.cs b/RechatTool/Rechat.cs
index f9994cb..e103134 100644
--- a/RechatTool/Rechat.cs
+++ b/RechatTool/Rechat.cs
@@ -8,11 +8,16 @@
 using System.ComponentModel;
 using System.IO;
 using System.Linq;
-using System.Net;
 using System.Text;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
+#if NETFRAMEWORK
+using System.Net;
+#else
+using System.Net.Http;
+#endif
+
 namespace RechatTool {
 	public static class Rechat {
 		public static void DownloadFile(long videoId, string path, bool overwrite = false, DownloadProgressCallback progressCallback = null) {
@@ -26,7 +31,7 @@ public static void DownloadFile(long videoId, string path, bool overwrite = fals
 			JObject lastComment = null;
 			bool finishedDownload = false;
 			try {
-				using var writer = new JsonTextWriter(new StreamWriter(path, false, new UTF8Encoding(true)));
+				using JsonTextWriter writer = new(new StreamWriter(path, false, new UTF8Encoding(true)));
 				writer.WriteStartArray();
 				do {
 					string url = nextCursor == null ?
@@ -56,8 +61,8 @@ public static void DownloadFile(long videoId, string path, bool overwrite = fals
 			}
 			if (firstComment != null) {
 				try {
-					var firstMessage = new RechatMessage(firstComment);
-					var lastMessage = new RechatMessage(lastComment);
+					RechatMessage firstMessage = new(firstComment);
+					RechatMessage lastMessage = new(lastComment);
 					File.SetCreationTimeUtc(path, firstMessage.CreatedAt - firstMessage.ContentOffset);
 					File.SetLastWriteTimeUtc(path, lastMessage.CreatedAt);
 				}
@@ -67,19 +72,34 @@ public static void DownloadFile(long videoId, string path, bool overwrite = fals
 			}
 		}
 
+#if NETFRAMEWORK
 		private static string DownloadUrlAsString(string url, Action<HttpWebRequest> withRequest = null) {
 			HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
 			withRequest?.Invoke(request);
-			using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
-			using (StreamReader responseStream = new StreamReader(response.GetResponseStream())) {
-				return responseStream.ReadToEnd();
-			}
+			using HttpWebResponse response = (HttpWebResponse)request.GetResponse();
+			using StreamReader responseStream = new(response.GetResponseStream());
+			return responseStream.ReadToEnd();
 		}
 
 		private static void AddTwitchApiHeaders(HttpWebRequest request) {
 			request.Accept = "application/vnd.twitchtv.v5+json";
 			request.Headers.Add("Client-ID", "jzkbprff40iqj646a697cyrvl0zt2m6");
 		}
+#else
+		private static string DownloadUrlAsString(string url, Action<HttpRequestMessage> withRequest = null) {
+			using HttpClient client = new();
+			using HttpRequestMessage request = new(HttpMethod.Get, url);
+			withRequest?.Invoke(request);
+			using HttpResponseMessage response = client.Send(request);
+			using StreamReader responseStream = new(response.Content.ReadAsStream());
+			return responseStream.ReadToEnd();
+		}
+
+		private static void AddTwitchApiHeaders(HttpRequestMessage request) {
+			request.Headers.Add("Accept", "application/vnd.twitchtv.v5+json");
+			request.Headers.Add("Client-ID", "jzkbprff40iqj646a697cyrvl0zt2m6");
+		}
+#endif
 
 		private static TimeSpan? TryGetContentOffset(JObject comment) {
 			try {
@@ -117,11 +137,10 @@ public static void ProcessFile(string pathIn, string pathOut = null, bool overwr
 		}
 
 		public static IEnumerable<RechatMessage> ParseMessages(string path) {
-			using (var reader = new JsonTextReader(File.OpenText(path))) {
-				while (reader.Read()) {
-					if (reader.TokenType != JsonToken.StartObject) continue;
-					yield return new RechatMessage(JObject.Load(reader));
-				}
+			using JsonTextReader reader = new(File.OpenText(path));
+			while (reader.Read()) {
+				if (reader.TokenType != JsonToken.StartObject) continue;
+				yield return new RechatMessage(JObject.Load(reader));
 			}
 		}
 
@@ -149,7 +168,7 @@ public RechatMessage(JObject sourceJson) {
 
 			public DateTime CreatedAt => Comment.CreatedAt;
 
-			public TimeSpan ContentOffset => TimeSpan.FromSeconds(Comment.ContentOffsetSeconds);
+			public TimeSpan ContentOffset => new TimeSpan((long)Math.Round(Comment.ContentOffsetSeconds * 1000.0) * TimeSpan.TicksPerMillisecond);
 
 			// User said something with "/me"
 			public bool IsAction => Message.IsAction;
diff --git a/RechatTool/RechatTool.csproj b/RechatTool/RechatTool.csproj
index eba3c6d..aeedd6b 100644
--- a/RechatTool/RechatTool.csproj
+++ b/RechatTool/RechatTool.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net462</TargetFramework>
+    <TargetFrameworks>net462;net6.0</TargetFrameworks>
     <OutputType>Exe</OutputType>
     <LangVersion>latest</LangVersion>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>