add docs to cmake build

Author: HeatXD

GekkoLib/CMakeLists.txt

@@ -10,6 +10,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED True)
 
 # Option to build both shared and static libraries
 option(BUILD_SHARED_LIBS "Build using shared libraries" OFF)
+option(BUILD_DOCS "Build documentation" OFF)
 
 if(MSVC)
     # Visual Studio specific flags
@@ -28,7 +29,6 @@ option(NO_ASIO_BUILD "Exclude ASIO from the build" OFF)
 
 # Include directories for your project headers
 include_directories(${PROJECT_SOURCE_DIR}/include)
-
 # Include directories for third-party header-only libraries
 include_directories(${PROJECT_SOURCE_DIR}/thirdparty)
 include_directories(${PROJECT_SOURCE_DIR}/thirdparty/asio)
@@ -49,7 +49,6 @@ set(SRC_FILES
 # Shared libraries
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/out)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/out)
-
 # Static libraries
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/out)
 
@@ -58,11 +57,9 @@ add_library(GekkoNet ${SRC_FILES})
 
 # Set the output names conditionally based on used options
 set(TARGET_SUFFIX "")
-
 if(NOT BUILD_SHARED_LIBS)
     set(TARGET_SUFFIX "${TARGET_SUFFIX}_STATIC")
 endif()
-
 if(NO_ASIO_BUILD)
     set(TARGET_SUFFIX "${TARGET_SUFFIX}_NO_ASIO")
 endif()
@@ -79,4 +76,57 @@ endif()
 
 if(NO_ASIO_BUILD)
     target_compile_definitions(GekkoNet PRIVATE GEKKONET_NO_ASIO)
+endif()
+
+# Documentation configuration
+if(BUILD_DOCS)
+    find_package(Doxygen
+                REQUIRED dot
+                OPTIONAL_COMPONENTS mscgen dia)
+
+    # Get all header files
+    file(GLOB_RECURSE HEADER_FILES
+        ${PROJECT_SOURCE_DIR}/include/*.h
+    )
+
+    # Combine sources and headers for documentation
+    set(DOXYGEN_INPUT_FILES
+        ${SRC_FILES}
+        ${HEADER_FILES}
+        ${PROJECT_SOURCE_DIR}/README.md
+    )
+
+    # Configure Doxygen settings
+    set(DOXYGEN_PROJECT_NAME "GekkoNet")
+    set(DOXYGEN_PROJECT_VERSION ${PROJECT_VERSION})
+    set(DOXYGEN_PROJECT_BRIEF "C/C++ Peer to Peer Game Networking SDK")
+    set(DOXYGEN_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/docs)
+    set(DOXYGEN_GENERATE_HTML YES)
+    set(DOXYGEN_GENERATE_TREEVIEW YES)
+    set(DOXYGEN_EXTRACT_ALL YES)
+    set(DOXYGEN_EXTRACT_PRIVATE YES)
+    set(DOXYGEN_EXTRACT_STATIC YES)
+    set(DOXYGEN_RECURSIVE YES)
+    set(DOXYGEN_SOURCE_BROWSER YES)
+    set(DOXYGEN_GENERATE_LATEX NO)
+    set(DOXYGEN_USE_MDFILE_AS_MAINPAGE "README.md")
+    set(DOXYGEN_COLLABORATION_GRAPH YES)
+    set(DOXYGEN_CLASS_GRAPH YES)
+    set(DOXYGEN_CALL_GRAPH YES)
+    set(DOXYGEN_CALLER_GRAPH YES)
+    set(DOXYGEN_HIDE_UNDOC_RELATIONS NO)
+    
+    # Add custom settings for networking library
+    set(DOXYGEN_BUILTIN_STL_SUPPORT YES)
+    set(DOXYGEN_EXTRACT_LOCAL_CLASSES YES)
+    set(DOXYGEN_SHOW_INCLUDE_FILES YES)
+    set(DOXYGEN_GENERATE_TODOLIST YES)
+    set(DOXYGEN_WARNINGS YES)
+    set(DOXYGEN_WARN_IF_UNDOCUMENTED YES)
+    
+    # Generate documentation
+    doxygen_add_docs(docs
+        ${DOXYGEN_INPUT_FILES}
+        COMMENT "Generating API documentation with Doxygen"
+    )
 endif()