From 39cefab6117054119d034ff0b7c5238cd8406dca Mon Sep 17 00:00:00 2001
From: cspark <git@cspark.dev>
Date: Thu, 20 Nov 2025 23:06:21 +0000
Subject: [PATCH] Init cursen

---
 CMakeLists.txt | 13 ++++++--
 README.org     |  3 +-
 default.nix    |  7 +++--
 main.cpp       | 80 ++++++++++++++++++++++++++++++++++++++++++++++++--
 run.sh         |  2 +-
 5 files changed, 95 insertions(+), 10 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c922b4a..1cdc742 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.23)
 
-project(template)
+project(cursen)
 
 set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
@@ -8,9 +8,16 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 #string(REPLACE ":" ";" INCLUDE_LIST $ENV{CMAKE_STDLIB})
 #include_directories($ENV{CMAKE_STDLIB})
 
-add_executable(template)
+find_package(PkgConfig REQUIRED)
 
-target_sources(template
+pkg_check_modules(notcurses REQUIRED IMPORTED_TARGET notcurses)
+pkg_check_modules(notcurses++ REQUIRED IMPORTED_TARGET notcurses++)
+
+add_executable(cursen)
+
+target_link_libraries(cursen PRIVATE PkgConfig::notcurses PkgConfig::notcurses++)
+
+target_sources(cursen
 	PRIVATE
 		main.cpp
 )
diff --git a/README.org b/README.org
index bf84313..62edce0 100644
--- a/README.org
+++ b/README.org
@@ -1,2 +1 @@
-* Nix C++ Dev Template
-Basic C++ CMake template with Nix
+* Cursen
diff --git a/default.nix b/default.nix
index e722ad8..5539087 100644
--- a/default.nix
+++ b/default.nix
@@ -1,14 +1,17 @@
 with (import <nixpkgs> {});
 
 clangStdenv.mkDerivation {
-	name = "template";
+	name = "cursen";
 	nativeBuildInputs = with pkgs; [
 		cmake
+		pkg-config
+
+		notcurses.dev
 
 		clang-tools
 		clang
 	];
 
 	# Workaround as Clangd cannot see std header files, so include set of files manually just for Clangd
-	CXXFLAGS = "-isystem${pkgs.gcc.cc}/include/c++/14.3.0 -isystem${pkgs.gcc.cc}/include/c++/14.3.0/x86_64-unknown-linux-gnu -isystem${pkgs.glibc.dev}/include";
+	CXXFLAGS = "-isystem${pkgs.gcc.cc}/include/c++/14.3.0 -isystem${pkgs.gcc.cc}/include/c++/14.3.0/x86_64-unknown-linux-gnu -isystem${pkgs.glibc.dev}/include -I${notcurses.dev}";
 }
diff --git a/main.cpp b/main.cpp
index 8ec9f09..98a923f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,6 +1,82 @@
 #include <iostream>
+#include <ncpp/NotCurses.hh>
 
-int main() {
-	std::cout << "Hello, world!" << std::endl;
+using namespace ncpp;
+
+typedef union Grapheme {
+	uint8_t utf8[4];
+	uint32_t to_uint32 = 0;
+} Grapheme;
+
+inline uint32_t utf32_to_egc(const uint32_t character) {
+	Grapheme result;
+
+	if (!notcurses_ucs32_to_utf8(&character, 1, result.utf8, 4)) {
+		std::cerr << "Couldn't convert ucs32 " + std::to_string(character) + "to utf8!" << std::endl;
+		return EXIT_FAILURE;
+	};
+
+	return result.to_uint32;
 }
 
+int run ()
+{
+	NotCurses nc;
+	Plane* nc_plane = nc.get_stdplane();
+
+	Cell corner_ul = Cell(utf32_to_egc(L'┌'));
+	Cell corner_ur = Cell(utf32_to_egc(L'┐'));
+	Cell corner_bl = Cell(utf32_to_egc(L'└'));
+	Cell corner_br = Cell(utf32_to_egc(L'┘'));
+	Cell horizontal_line = Cell(utf32_to_egc(L'─'));
+	Cell vertical_line = Cell(utf32_to_egc(L'│'));
+	nc_plane->perimeter(
+		corner_ul, 
+		corner_ur, 
+		corner_bl, 
+		corner_br, 
+		horizontal_line, 
+		vertical_line, 
+		0
+	);
+
+	nc_plane->putstr(0, 1, "channel");
+
+	nc_plane->putstr(1, 1, "─");
+
+	/*nc_plane->cursor_move(0, 0);
+	Cell start; nc_plane->get_at(0, 0, start);
+	//nc_plane->get_at(0, 0, &end);
+	nc_plane->vline(
+		start,
+		10
+	);*/
+
+	while (true) {
+	
+		nc.render();
+		sleep(1);
+	}
+
+	return 0;
+}
+
+int main ()
+{
+	if (!setlocale (LC_ALL, "")){
+		std::cerr << "Couldn't set locale based on user preferences" << std::endl;
+		return EXIT_FAILURE;
+	}
+	
+	try {
+		return run ();
+	} catch (ncpp::init_error &e) {
+		std::cerr << "Initialization error: " << e.what () << std::endl;
+	} catch (ncpp::invalid_state_error &e) {
+		std::cerr << "Invalid state error: " << e.what () << std::endl;
+	} catch (ncpp::invalid_argument &e) {
+		std::cerr << "Invalid argument error: " << e.what () << std::endl;
+	}
+
+	return 1;
+}
diff --git a/run.sh b/run.sh
index 2b9c3be..a47695d 100755
--- a/run.sh
+++ b/run.sh
@@ -4,4 +4,4 @@ cmake -B build --fresh
 
 cmake --build build
 
-./build/discern
+./build/cursen