cmake_minimum_required(VERSION 3.22)
project(metal_kompanion_mcp LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

option(KOM_ENABLE_PG "Enable Postgres-backed DAL support" ON)

set(KOM_HAVE_PG OFF)
if (KOM_ENABLE_PG)
  find_package(PostgreSQL QUIET)
  find_package(pqxx QUIET)
  if (PostgreSQL_FOUND AND pqxx_FOUND)
    set(KOM_HAVE_PG ON)
  endif()
endif()

if (KOM_HAVE_PG)
  message(STATUS "kom_dal: Postgres support enabled (HAVE_PG)")
else()
  message(STATUS "kom_dal: Postgres support disabled (pqxx/libpq not found)")
endif()

set(KOM_HAVE_PG ${KOM_HAVE_PG} CACHE INTERNAL "kom_dal has Postgres backend")

set(KOMPANION_KCONFIG_TARGET "")
find_package(KF6Config QUIET)
if (KF6Config_FOUND)
  set(KOMPANION_KCONFIG_TARGET KF6::ConfigCore)
else()
  find_package(KF5Config QUIET)
  if (KF5Config_FOUND)
    set(KOMPANION_KCONFIG_TARGET KF5::ConfigCore)
  endif()
endif()

if (KOMPANION_KCONFIG_TARGET STREQUAL "")
  message(WARNING "KConfig (KF6/KF5) not found; defaulting to environment-based configuration.")
endif()

option(BUILD_KOMPANION_CLI "Build Kompanion Qt command-line client" ON)
if (BUILD_KOMPANION_CLI)
  find_package(Qt6 COMPONENTS Core QUIET)
  if (NOT Qt6_FOUND)
    message(WARNING "Qt6 Core not found; disabling Kompanion CLI.")
    set(BUILD_KOMPANION_CLI OFF)
  endif()
endif()

# Placeholder: find Qt and qtmcp when available
# find_package(Qt6 COMPONENTS Core Network REQUIRED)
# find_package(qtmcp REQUIRED)

add_subdirectory(src/dal)

add_executable(kom_mcp
    src/main.cpp
)
target_include_directories(kom_mcp PRIVATE src)
target_link_libraries(kom_mcp PRIVATE kom_dal)
target_compile_definitions(kom_mcp PRIVATE PROJECT_SOURCE_DIR="${CMAKE_SOURCE_DIR}")
if (NOT KOMPANION_KCONFIG_TARGET STREQUAL "")
  target_link_libraries(kom_mcp PRIVATE ${KOMPANION_KCONFIG_TARGET})
  target_compile_definitions(kom_mcp PRIVATE HAVE_KCONFIG)
endif()

install(TARGETS kom_mcp RUNTIME DESTINATION bin)

option(BUILD_TESTS "Build tests" ON)

if (BUILD_KOMPANION_CLI)
  add_executable(kompanion
      src/cli/KompanionApp.cpp
  )
  target_include_directories(kompanion PRIVATE src)
  target_link_libraries(kompanion PRIVATE Qt6::Core kom_dal)
  target_compile_definitions(kompanion PRIVATE PROJECT_SOURCE_DIR="${CMAKE_SOURCE_DIR}")
  if (NOT KOMPANION_KCONFIG_TARGET STREQUAL "")
    target_link_libraries(kompanion PRIVATE ${KOMPANION_KCONFIG_TARGET})
    target_compile_definitions(kompanion PRIVATE HAVE_KCONFIG)
  endif()
  install(TARGETS kompanion RUNTIME DESTINATION bin)
endif()

if (BUILD_TESTS)
  enable_testing()
  add_subdirectory(tests)
endif()