From 7768ba452276f4c6fb2d0f1286a79db18678d37f Mon Sep 17 00:00:00 2001
From: Pasha Bibko <156938226+PashaBibko@users.noreply.github.com>
Date: Sun, 20 Jul 2025 13:10:57 +0100
Subject: [PATCH] Added colored text in terminal

---
 Common/FileRead.h | 20 ++++++++++++++--
 Common/IO.h       | 60 +++++++++++++++++++++++++++++++++++++++++++++++
 Common/LXC.h      |  2 +-
 LXC/LXC.cpp       | 27 ++++++++++++---------
 4 files changed, 95 insertions(+), 14 deletions(-)
 create mode 100644 Common/IO.h

diff --git a/Common/FileRead.h b/Common/FileRead.h
index e33aa58..1d8157e 100644
--- a/Common/FileRead.h
+++ b/Common/FileRead.h
@@ -7,6 +7,7 @@ namespace LXC::Util
 {
 	struct FileReadError
 	{
+		// Different reasons why the error can occur //
 		enum Reason
 		{
 			FileNotFound,
@@ -14,12 +15,27 @@ namespace LXC::Util
 			NotAFile
 		};
 
+		// Constructor to pass arguments to the struct //
 		FileReadError(const std::filesystem::path& _path, Reason _reason)
 			: path(_path), reason(_reason)
 		{}
 
-		std::filesystem::path path;
-		Reason reason;
+		// Error information //
+		const std::filesystem::path path;
+		const Reason reason;
+
+		// Turns the error into a c-string //
+		inline static const char* const ReasonStr(const Reason& reason)
+		{
+			static const char* reasons[] =
+			{
+				"File cannot be found",
+				"File reading permissions are denied",
+				"Not a file"
+			};
+
+			return reasons[reason];
+		}
 	};
 
 	inline ReturnVal<std::string, FileReadError> ReadFile(const std::filesystem::path& filepath)
diff --git a/Common/IO.h b/Common/IO.h
new file mode 100644
index 0000000..d91c120
--- /dev/null
+++ b/Common/IO.h
@@ -0,0 +1,60 @@
+#pragma once
+
+// Platform specific includes //
+#ifdef _WIN32
+	#define NOMINMAX
+	#define WIN32_LEAN_AND_MEAN
+	#include <Windows.h>
+#else
+	#error "Code is currently only supported on Win32"
+#endif // _WIN32
+
+#include <iostream>
+#include <ostream>
+
+namespace LXC::Util
+{
+	// Checks if a type can be outputted to std::ostream //
+	template<typename T> concept Logable = requires(std::ostream& os, T t)
+	{
+		// I have no idea what this part does at all //
+		{ os << t } -> std::same_as<std::ostream&>;
+	};
+
+	// Checks if a list of types can be outputted to std::ostream //
+	template<typename... Args> concept AllLogable = (Logable<Args> && ...);
+
+	// Enum to translate to the Win32 code for the colors //
+	enum class Color : WORD
+	{
+		BLACK			= 0x00,
+		BLUE			= 0x01,
+		GREEN			= 0x02,
+		AQUA			= 0x03,
+		RED				= 0x04,
+		PURPLE			= 0x05,
+		YELLOW			= 0x06,
+		LIGHT_GRAY		= 0x07,
+		LIGHT_BLUE		= 0x09,
+		LIGHT_GREEN		= 0x0a,
+		LIGHT_AQUA		= 0x0b,
+		LIGHT_RED		= 0x0c,
+		LIGHT_PURPLE	= 0x0d,
+		LIGHT_YELLOW	= 0x0e,
+		WHITE			= 0x0f
+	};
+
+	// Prints arguments to the console with the given color //
+	template<Color col, typename... Args>
+		requires AllLogable<Args...>
+	inline void PrintAs(Args... args)
+	{
+		// Permenant handle to the console //
+		static HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
+
+		// Prints it to the console and resets the color //
+		SetConsoleTextAttribute(hConsole, (WORD)col);
+		(std::cout << ... << args);
+		SetConsoleTextAttribute(hConsole, (WORD)Color::LIGHT_GRAY);
+	}
+}
diff --git a/Common/LXC.h b/Common/LXC.h
index c7e0530..d0b131f 100644
--- a/Common/LXC.h
+++ b/Common/LXC.h
@@ -3,9 +3,9 @@
 // Standard libraries //
 
 #include <iostream>
-#include <cstdlib>
 
 // LXC util files //
 
 #include <Result.h>
 #include <FileRead.h>
+#include <IO.h>
diff --git a/LXC/LXC.cpp b/LXC/LXC.cpp
index 713a8b9..cdd8f2a 100644
--- a/LXC/LXC.cpp
+++ b/LXC/LXC.cpp
@@ -6,20 +6,25 @@ int main(int argc, char** argv)
 {
 	using namespace LXC;
 
-	//
-
-	Lexer::LexerContext context;
-	Lexer::Token exampleToken(context, 2);
-
-	//
-
+	// Reads the given file to a string //
 	Util::ReturnVal fileContents = Util::ReadFile("example/example.lx");
+	if (fileContents.Failed())
+	{
+		// Stores the error for easier access //
+		Util::FileReadError& err = fileContents.Error();
 
-	if (fileContents.Suceeded())
-		std::cout << fileContents.Result() << std::endl;
+		// Prints the error to the console //
+		Util::PrintAs<Util::Color::WHITE>("[LXC]");
+		Util::PrintAs<Util::Color::LIGHT_RED>(" Error: ");
 
-	else
-		std::cout << fileContents.Error().reason << " | " << fileContents.Error().path << std::endl;
+		std::cout
+			<< Util::FileReadError::ReasonStr(err.reason) << ' '
+			<< '[' << std::filesystem::absolute(err.path) << ']'
+			<< std::endl;
+
+		// Returns with default exit code //
+		return -1;
+	}
 
 	return 0;
 }