From 5d8fc76e53232efd5036f6727029b1885d83bb6c Mon Sep 17 00:00:00 2001
From: Laura Hausmann <laura@hausmann.dev>
Date: Mon, 20 Feb 2023 01:52:15 +0100
Subject: [PATCH] Implement missing functionality

---
 Program.cs | 48 +++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 41 insertions(+), 7 deletions(-)

diff --git a/Program.cs b/Program.cs
index 7e42bbc..8776e52 100644
--- a/Program.cs
+++ b/Program.cs
@@ -1,13 +1,47 @@
 using Telegram.Bot;
+using Telegram.Bot.Types.Enums;
 
-if (args.Length != 3) {
-	Console.WriteLine("Syntax: telegram-send <token> <chatId> <message>");
-	Environment.Exit(1);
+var    homeDir    = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+var    configFile = Path.Join(homeDir, ".telegram-send.conf");
+string config;
+
+if (args.Length == 0)
+	PrintSyntaxAndExit();
+
+if (args[0] == "--config") {
+	if (args.Length != 3)
+		PrintSyntaxAndExit();
+
+	config = $"""
+	token={args[1]}
+	chatId={args[2]}
+	""";
+
+	File.WriteAllText(configFile, config);
+	Environment.Exit(0);
 }
 
-var token   = args[0];
-var chatId  = args[1];
-var message = args[2];
+if (args.Length > 2)
+	PrintSyntaxAndExit();
+
+config = File.ReadAllText(configFile);
+var token   = config.Split("\n")[0].Replace("token=", "");
+var chatId  = config.Split("\n")[1].Replace("chatId=", "");
+var message = args[0] == "-" ? Console.In.ReadToEnd() : args[0];
 var bot     = new TelegramBotClient(token);
 
-await bot.SendTextMessageAsync(chatId, message);
+if (args.Contains("--pre"))
+	message = $"```\n{message}\n```";
+
+await bot.SendTextMessageAsync(chatId, message, ParseMode.MarkdownV2);
+
+void PrintSyntaxAndExit() {
+	Console.WriteLine("""
+	Syntax:
+	telegram-send --config <token> <chatid>
+	telegram-send <message> [--pre]
+
+	To read from stdin, pass '-' as message.
+	""");
+	Environment.Exit(1);
+}