add_library( ${TARGET} INTERFACE )

def_vars()

set( WXWIN $ENV{WXWIN} )
if( "${WXWIN}" STREQUAL "" )
   set( WXWIN "${_INTDIR}/wxwidgets" )
   # XXX: Look into importing instead of adding to this project
endif()

if( NOT EXISTS "${WXWIN}" )
   find_package( Git )
   if( NOT GIT_FOUND )
      message( FATAL_ERROR "Git is needed to clone wxWidgets" )
   endif()

   execute_process(
      COMMAND
         ${GIT_EXECUTABLE} clone
                           --depth 1
                           --single-branch
                           --recurse-submodules
                           https://github.com/audacity/wxwidgets
                           "${WXWIN}"
   )
endif()

if( CMAKE_SYSTEM_NAME MATCHES "Windows" )
   # Want accessibility
   set( wxUSE_ACCESSIBILITY YES )

   # Windows requires it due to missing "#include" directives
   set( wxBUILD_PRECOMP YES )
elseif( CMAKE_SYSTEM_NAME MATCHES "Darwin" )
   # Want accessibility
   set( wxUSE_ACCESSIBILITY YES )

   # Causes problems on OSX, so turn it off
   set( wxBUILD_PRECOMP NO )
elseif( CMAKE_SYSTEM_NAME MATCHES "Linux" )
   # Doesn't yet have accessbility
   set( wxUSE_ACCESSIBILITY NO )

   # Linux can go either way, so might as well use it
   set( wxBUILD_PRECOMP YES )
endif()

# Just to be consistent with Audacity
set( wxBUILD_CXX_STANDARD "14" )

# Pull in wxWidgets
add_subdirectory( ${WXWIN} ${WXWIN} )

# And rearrange the folder structure
set_dir_folder( ${WXWIN} "wxWidgets" )

set( INCLUDES
   $<$<STREQUAL:"${wxUSE_ZLIB}","builtin">:${WXWIN}/src/zlib>
)

set( DEFINES
   WXUSINGDLL
)

set( LIBRARIES
   adv
   base
   core
   html
   net
   qa
   xml
   $<$<STREQUAL:"${wxUSE_EXPAT}","builtin">:wxexpat>
   $<$<STREQUAL:"${wxUSE_LIBJPEG}","builtin">:wxjpeg>
   $<$<STREQUAL:"${wxUSE_LIBPNG}","builtin">:wxpng>
   $<$<STREQUAL:"${wxUSE_LIBTIFF}","builtin">:wxtiff>
   $<$<STREQUAL:"${wxUSE_REGEX}","builtin">:wxregex>
   $<$<STREQUAL:"${wxUSE_ZLIB}","builtin">:wxzlib>
)

if( CMAKE_SYSTEM_NAME MATCHES "Darwin" )
   # When accessibility is enabled, the build will fail in "wx/chkconf.h"
   # since wxRegex compile defines do not include __WXOSX_COCOA__.  So,
   # add it here.
   target_compile_definitions( wxregex PRIVATE "__WXOSX_COCOA__" )
elseif( CMAKE_SYSTEM_NAME MATCHES "Linux" )
   # We need the system GTK/GLIB packages
   if( "${wxBUILD_TOOLKIT}" STREQUAL "gtk2" )
      set( gtk gtk+-2.0 )
      set( glib glib-2.0 )
   elseif( "${wxBUILD_TOOLKIT}" STREQUAL "gtk3" )
      set( gtk gtk+-3.0 )
      set( glib glib-2.0 )
   elseif( "${wxBUILD_TOOLKIT}" STREQUAL "gtk4" )
      set( gtk gtk+-4.0 )
      set( glib glib-2.0 )
   else()
      message( FATAL_ERROR "Unrecognized wxGTK version: ${wxBUILD_TOOLKIT}" )
   endif()
 
   pkg_check_modules( GTK REQUIRED IMPORTED_TARGET GLOBAL ${gtk} )
   pkg_check_modules( GLIB REQUIRED IMPORTED_TARGET GLOBAL ${glib} )
endif()

target_include_directories( ${TARGET} INTERFACE ${INCLUDES} )
target_compile_definitions( ${TARGET} INTERFACE ${DEFINES} )
target_link_libraries( ${TARGET} INTERFACE ${LIBRARIES} )