# * Find jsoncpp include dirs and libraries Use this module by invoking find_package with the form: find_package(JsonCPP
#   [required] [quiet] )
#
# The module sets the following variables JSONCPP_FOUND          - True if headers and libraries were found
# JSONCPP_INCLUDE_DIR    - jsoncpp include directories JSONCPP_LIBRARY        - library files for linking (optimised
# version) JSONCPP_LIBRARY_DEBUG  - library files for linking (debug version) JSONCPP_LIBRARIES      - All required
# libraries, including the configuration type

# Headers
find_path(JSONCPP_INCLUDE_DIR json/reader.h PATH_SUFFIXES jsoncpp)

# Libraries
find_library(JSONCPP_LIBRARY NAMES jsoncpp) # optimized
find_library(JSONCPP_LIBRARY_DEBUG NAMES jsoncpp_d) # debug

if(JSONCPP_LIBRARY AND JSONCPP_LIBRARY_DEBUG)
  set(JSONCPP_LIBRARIES optimized ${JSONCPP_LIBRARY} debug ${JSONCPP_LIBRARY_DEBUG})
else()
  set(JSONCPP_LIBRARIES ${JSONCPP_LIBRARY})
endif()

set(_JSONCPP_VERSION_ARGS)
if(EXISTS "${JSONCPP_INCLUDE_DIR}/json/version.h")
  file(STRINGS "${JSONCPP_INCLUDE_DIR}/json/version.h" _JSONCPP_VERSION_CONTENTS REGEX "JSONCPP_VERSION_[A-Z]+")
  foreach(_JSONCPP_VERSION_PART MAJOR MINOR PATCH)
    string(REGEX REPLACE ".*# *define +JSONCPP_VERSION_${_JSONCPP_VERSION_PART} +([0-9]+).*" "\\1"
                         JSONCPP_VERSION_${_JSONCPP_VERSION_PART} "${_JSONCPP_VERSION_CONTENTS}"
    )
  endforeach()

  set(JSONCPP_VERSION_STRING "${JSONCPP_VERSION_MAJOR}.${JSONCPP_VERSION_MINOR}.${JSONCPP_VERSION_PATCH}")

  set(_JSONCPP_VERSION_ARGS VERSION_VAR JSONCPP_VERSION_STRING)
endif()

# Handle the QUIETLY and REQUIRED arguments and set JSONCPP_FOUND to TRUE if all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(JsonCPP REQUIRED_VARS JSONCPP_INCLUDE_DIR JSONCPP_LIBRARIES ${_JSONCPP_VERSION_ARGS})

# Advanced variables
mark_as_advanced(JSONCPP_INCLUDE_DIR JSONCPP_LIBRARIES)

if(WIN32)
  string(REPLACE ".lib" ".dll" JSONCPP_LIBRARY_DLL "${JSONCPP_LIBRARY}")
  string(REPLACE ".lib" ".dll" JSONCPP_LIBRARY_DEBUG_DLL "${JSONCPP_LIBRARY_DEBUG}")
  get_filename_component(JSONCPP_LIBRARY_DLL ${JSONCPP_LIBRARY_DLL} NAME)
  get_filename_component(JSONCPP_LIBRARY_DEBUG_DLL ${JSONCPP_LIBRARY_DEBUG_DLL} NAME)
  find_file(JSONCPP_LIBRARY_DLL PATH_SUFFIXES bin/)
  find_file(JSONCPP_LIBRARY_DEBUG_DLL PATH_SUFFIXES bin/)
endif()

if(JSONCPP_FOUND AND NOT TARGET JsonCPP::jsoncpp)
  if(JSONCPP_LIBRARY_DLL)

    # Windows systems with dll libraries.
    add_library(JsonCPP::jsoncpp SHARED IMPORTED)

    # Windows with dlls, but only Release libraries.
    set_target_properties(
      JsonCPP::jsoncpp
      PROPERTIES IMPORTED_LOCATION_RELEASE "${JSONCPP_LIBRARY_DLL}"
                 IMPORTED_IMPLIB "${JSONCPP_LIBRARY}"
                 INTERFACE_INCLUDE_DIRECTORIES "${JSONCPP_INCLUDE_DIR}"
                 IMPORTED_CONFIGURATIONS Release
                 IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
    )

    # If we have both Debug and Release libraries
    if(JSONCPP_LIBRARY_DEBUG_DLL)
      set_property(
        TARGET JsonCPP::jsoncpp
        APPEND
        PROPERTY IMPORTED_CONFIGURATIONS Debug
      )
      set_target_properties(
        JsonCPP::jsoncpp PROPERTIES IMPORTED_LOCATION_DEBUG "${JSONCPP_LIBRARY_DEBUG_DLL}" IMPORTED_IMPLIB_DEBUG
                                                                                           "${JSONCPP_LIBRARY_DEBUG}"
      )
    endif()
  else()
    add_library(JsonCPP::jsoncpp UNKNOWN IMPORTED)
    set_target_properties(
      JsonCPP::jsoncpp
      PROPERTIES IMPORTED_LOCATION "${JSONCPP_LIBRARY}"
                 INTERFACE_INCLUDE_DIRECTORIES "${JSONCPP_INCLUDE_DIR}"
                 IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
    )
  endif()
endif()