cmake_minimum_required(VERSION 3.0.2)

# ========================================================
# Dual-mode CMakeLists.txt: Supports both Catkin and Standalone CMake
# ========================================================

# Detect if building with Catkin
if(DEFINED CATKIN_DEVEL_PREFIX OR DEFINED CATKIN_TOPLEVEL)
  set(BUILDING_WITH_CATKIN TRUE)
  message(STATUS "Building robot_xmlrpcpp with Catkin")
else()
  set(BUILDING_WITH_CATKIN FALSE)
  message(STATUS "Building robot_xmlrpcpp with Standalone CMake")
endif()

project(robot_xmlrpcpp)

## Compile as C++17
add_compile_options(-std=c++17)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# ========================================================
# Find Packages
# ========================================================

if(BUILDING_WITH_CATKIN)
  ## Find catkin macros and libraries
  find_package(catkin REQUIRED)
endif()

## System dependencies are found with CMake's conventions
find_package(console_bridge REQUIRED)

# ========================================================
# Catkin specific configuration
# ========================================================

if(BUILDING_WITH_CATKIN)
  ## The catkin_package macro generates cmake config files for your package
  catkin_package(
    INCLUDE_DIRS include
    LIBRARIES robot_xmlrpcpp
    CATKIN_DEPENDS
    DEPENDS console_bridge
  )
endif()

###########
## Build ##
###########

## Specify additional locations of header files
include_directories(
  include
  ${console_bridge_INCLUDE_DIRS}
)

if(BUILDING_WITH_CATKIN)
  include_directories(${catkin_INCLUDE_DIRS})
endif()

## Declare a C++ library
add_library(robot_xmlrpcpp
  src/XmlRpcClient.cpp
  src/XmlRpcDispatch.cpp
  src/XmlRpcServer.cpp
  src/XmlRpcServerConnection.cpp
  src/XmlRpcServerMethod.cpp
  src/XmlRpcSocket.cpp
  src/XmlRpcSource.cpp
  src/XmlRpcUtil.cpp
  src/XmlRpcValue.cpp
)

## Target include directories
target_include_directories(robot_xmlrpcpp
  PUBLIC
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include>
)

## Add cmake target dependencies of the library
if(BUILDING_WITH_CATKIN)
  add_dependencies(robot_xmlrpcpp ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})
endif()

## Specify libraries to link a library or executable target against
target_link_libraries(robot_xmlrpcpp
  ${console_bridge_LIBRARIES}
)

if(BUILDING_WITH_CATKIN)
  target_link_libraries(robot_xmlrpcpp ${catkin_LIBRARIES})
endif()

## Compiler flags
if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
  target_compile_options(robot_xmlrpcpp PRIVATE -Wall -Wextra -Wpedantic -fPIC -Wno-unused-parameter)
endif()

# ========================================================
# Installation (Standalone CMake only)
# ========================================================

# Export target trong mọi trường hợp để các target khác có thể export và phụ thuộc vào nó
install(TARGETS robot_xmlrpcpp
  EXPORT robot_xmlrpcpp-targets
  ARCHIVE DESTINATION lib      # Thư viện tĩnh .a
  LIBRARY DESTINATION lib      # Thư viện động .so
  RUNTIME DESTINATION bin      # File thực thi (nếu có)
  INCLUDES DESTINATION include # Cài đặt include
)

if(NOT BUILDING_WITH_CATKIN)
  install(
    DIRECTORY include/
    DESTINATION include/
  )

  # --- Xuất export set robot_xmlrpcpp-targets thành file CMake module ---
  install(EXPORT robot_xmlrpcpp-targets 
    FILE robot_xmlrpcpp-targets.cmake
    NAMESPACE robot_xmlrpcpp::
    DESTINATION lib/cmake/robot_xmlrpcpp
  )
else()
  # Khi build với Catkin, vẫn cần export để các target khác có thể export
  install(EXPORT robot_xmlrpcpp-targets 
    FILE robot_xmlrpcpp-targets.cmake
    NAMESPACE robot_xmlrpcpp::
    DESTINATION lib/cmake/robot_xmlrpcpp
  )
endif()