project(
  'FluxEngine',
  'cpp',
  version : '0.1.0',
  meson_version : '>=0.60.0',
  default_options : [
    'cpp_std=c++20',
    'warning_level=3',
    'buildtype=debugoptimized',
  ]
)

# 1) Grab the active C++ compiler
cpp = meson.get_compiler('cpp')
ccid = cpp.get_id()  # e.g. 'msvc', 'gcc', 'clang', 'intel', ...

# 2) Decide your D-flag prefix
if ccid == 'msvc'
  dflag = '/D'
else
  dflag = '-D'
endif

# 3) Platform macro (all OSes)
sys = host_machine.system()
if sys == 'windows'
  plat = 'FLUX_PLATFORM_WINDOWS'
elif sys == 'linux'
  plat = 'FLUX_PLATFORM_LINUX'
elif sys == 'darwin'
  plat = 'FLUX_PLATFORM_MACOS'
elif sys == 'freebsd'
  plat = 'FLUX_PLATFORM_FREEBSD'
else
  plat = 'FLUX_PLATFORM_UNKNOWN'
endif

add_global_arguments(dflag + plat, language : 'cpp')

# 4) Build-type macros
bt = get_option('buildtype')
if bt == 'debug'
  add_project_arguments(dflag + 'FLUX_DEBUG', language : 'cpp')
elif bt == 'release'
  add_project_arguments(dflag + 'FLUX_RELEASE', language : 'cpp')
elif bt == 'debugoptimized'
  add_project_arguments(dflag + 'FLUX_DIST', language : 'cpp')
else
  warning('Unrecognized buildtype: ' + bt)
endif

# Tell Meson to descend into these directories
subdir('FluxEngine')
subdir('Sandbox')