Add better documentation

Author: Rucadi

generate_doxygen.nix

@@ -0,0 +1,29 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.stdenv.mkDerivation {
+  name = "generate-doxygen-doc";
+  buildInputs = [ pkgs.doxygen pkgs.graphviz ];
+
+  src = ./include;
+
+  buildPhase = ''
+    # Create a basic Doxygen configuration file if not present
+    if [ ! -f Doxyfile ]; then
+      doxygen -g Doxyfile
+    fi
+    
+    # Customize the Doxyfile for better output
+    sed -i "s|^OUTPUT_DIRECTORY.*|OUTPUT_DIRECTORY = doxygen_output|" Doxyfile
+    sed -i "s|^GENERATE_HTML.*NO|GENERATE_HTML = YES|" Doxyfile
+    sed -i "s|^GENERATE_LATEX.*YES|GENERATE_LATEX = NO|" Doxyfile
+    sed -i "s|^EXTRACT_ALL.*NO|EXTRACT_ALL = YES|" Doxyfile
+    
+    # Run Doxygen
+    doxygen Doxyfile
+  '';
+
+  installPhase = ''
+    mkdir -p $out
+    cp -r doxygen_output $out/
+  '';
+}