project('gala',
    'c', 'vala',
    version: '3.3.2',
    meson_version: '>= 0.48.0',
    license: 'GPL3',
)

is_release = false

gnome = import('gnome')
i18n = import('i18n')
pkg = import('pkgconfig')
cc = meson.get_compiler('c')

gala_version = meson.project_version()

vala_version_required = '0.28.0'
vala = meson.get_compiler('vala')
if not vala.version().version_compare('>= @0@'.format(vala_version_required))
    error('Valac >= @0@ required!'.format(vala_version_required))
endif

vapi_dir = meson.current_source_dir() / 'vapi'

data_dir = join_paths(get_option('prefix'), get_option('datadir'))
plugins_dir = join_paths(get_option('prefix'), get_option('libdir'), meson.project_name(), 'plugins')
pkgdata_dir = join_paths(get_option('prefix'), get_option('datadir'), meson.project_name())
pkglib_dir = join_paths(get_option('prefix'), get_option('libdir'), meson.project_name())

conf = configuration_data()
conf.set_quoted('DATADIR', data_dir)
conf.set_quoted('PKGDATADIR', pkgdata_dir)
conf.set_quoted('PLUGINDIR', plugins_dir)
conf.set_quoted('RESOURCEPATH', '/org/pantheon/desktop/gala')
conf.set_quoted('VERSION', gala_version)
conf.set_quoted('SCHEMA', 'org.pantheon.desktop.gala')
config_h = configure_file(
    output: 'config.h',
    configuration: conf
)

config_dep = declare_dependency(
    dependencies: vala.find_library('config', dirs: vapi_dir),
    sources: config_h
)

config_inc_dir = include_directories('.')

customconf = configuration_data()
customconf.set('GETTEXT_PACKAGE', meson.project_name())

add_project_arguments([
        '--target-glib=2.44',
        '--hide-internal',
        '--enable-deprecated',
        '--vapidir=' + vapi_dir,
    ],
    language: 'vala',
)
add_project_arguments([
        '-Wno-discarded-qualifiers',
        '-Wno-incompatible-pointer-types',
        '-Wno-unused',
        '-Wl,--enable-new-dtags',

        '-DGETTEXT_PACKAGE="@0@"'.format(meson.project_name()),
        '-DGNOME_DESKTOP_USE_UNSTABLE_API',

        '-DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_44',
        '-DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_44',
        '-DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_3_10',
        '-DGDK_VERSION_MAX_ALLOWED=GDK_VERSION_3_10',
    ],
    language: 'c',
)


# Dependencies
glib_version_required = '2.44.0'
gtk_version_required = '3.10.0'
plank_version_required = '0.11.0'
gsd_version_required = '3.15.2'

glib_dep = dependency('glib-2.0', version: '>= @0@'.format(glib_version_required))
gobject_dep = dependency('gobject-2.0', version: '>= @0@'.format(glib_version_required))
gio_dep = dependency('gio-2.0', version: '>= @0@'.format(glib_version_required))
gmodule_dep = dependency('gmodule-2.0')
gtk_dep = [dependency('gtk+-3.0', version: '>= @0@'.format(gtk_version_required)), dependency('gdk-x11-3.0')]
gee_dep = dependency('gee-0.8')
plank_dep = dependency('plank', version: '>= @0@'.format(plank_version_required))
granite_dep = dependency('granite', version: '>= 5.4.0')
gnome_desktop_dep = dependency('gnome-desktop-3.0')
gsd_dep = dependency('gnome-settings-daemon', version: '>= @0@'.format(gsd_version_required))
m_dep = cc.find_library('m', required: false)

mutter_dep = []
libmutter_dep = []

vala_flags = []

mutter328_dep = dependency('libmutter-2', version: ['>= 3.27', '< 3.29'], required: false)
if mutter328_dep.found()
    libmutter_dep = dependency('libmutter-2', version: '>= 3.27.92')
    mutter_dep = [
        libmutter_dep,
        dependency('mutter-cogl-2'), dependency('mutter-cogl-pango-2'),
        dependency('mutter-cogl-path-2'), dependency('mutter-clutter-2')
    ]
    add_project_arguments(['-DCLUTTER_ENABLE_COMPOSITOR_API', '-DCLUTTER_ENABLE_EXPERIMENTAL_API',
        '-DCOGL_ENABLE_EXPERIMENTAL_API', '-DCOGL_ENABLE_EXPERIMENTAL_2_0_API'], language: 'c')
endif

mutter330_dep = dependency('libmutter-3', version: ['>= 3.29.4', '< 3.31'], required: false)
if mutter330_dep.found()
    libmutter_dep = dependency('libmutter-3', version: '>= 3.29.4')
    mutter_dep = [
        libmutter_dep,
        dependency('mutter-cogl-3'), dependency('mutter-cogl-pango-3'),
        dependency('mutter-cogl-path-3'), dependency('mutter-clutter-3')
    ]
    vala_flags = ['--define', 'HAS_MUTTER330']
    add_project_arguments(['-DCLUTTER_ENABLE_COMPOSITOR_API', '-DCLUTTER_ENABLE_EXPERIMENTAL_API',
        '-DCOGL_ENABLE_EXPERIMENTAL_API', '-DCOGL_ENABLE_EXPERIMENTAL_2_0_API'], language: 'c')
endif

mutter332_dep = dependency('libmutter-4', version: ['>= 3.31.2', '< 3.34'], required: false)
if mutter332_dep.found()
    libmutter_dep = dependency('libmutter-4', version: '>= 3.31.2')
    mutter_dep = [
        libmutter_dep,
        dependency('mutter-cogl-4'), dependency('mutter-cogl-pango-4'),
        dependency('mutter-cogl-path-4'), dependency('mutter-clutter-4')
    ]
    vala_flags = ['--define', 'HAS_MUTTER330', '--define', 'HAS_MUTTER332']
    add_project_arguments(['-DCLUTTER_ENABLE_COMPOSITOR_API', '-DCLUTTER_ENABLE_EXPERIMENTAL_API',
        '-DCOGL_ENABLE_EXPERIMENTAL_API', '-DCOGL_ENABLE_EXPERIMENTAL_2_0_API'], language: 'c')
endif

mutter334_dep = dependency('libmutter-5', version: ['>= 3.34', '< 3.35.1'], required: false)
if mutter334_dep.found()
    libmutter_dep = dependency('libmutter-5', version: '>= 3.34')
    mutter_dep = [
        libmutter_dep,
        dependency('mutter-cogl-5'), dependency('mutter-cogl-pango-5'),
        dependency('mutter-cogl-path-5'), dependency('mutter-clutter-5')
    ]
    vala_flags = ['--define', 'HAS_MUTTER330', '--define', 'HAS_MUTTER332', '--define', 'HAS_MUTTER334']
    add_project_arguments(['-DCLUTTER_ENABLE_COMPOSITOR_API', '-DCLUTTER_ENABLE_EXPERIMENTAL_API',
        '-DCOGL_ENABLE_EXPERIMENTAL_API', '-DCOGL_ENABLE_EXPERIMENTAL_2_0_API'], language: 'c')
endif

mutter336_dep = dependency('libmutter-6', version: ['>= 3.35.1', '< 3.38'], required: false)
if mutter336_dep.found()
    libmutter_dep = dependency('libmutter-6', version: '>= 3.35.1')
    mutter_dep = [
        libmutter_dep,
        dependency('mutter-cogl-6'), dependency('mutter-cogl-pango-6'),
        dependency('mutter-cogl-path-6'), dependency('mutter-clutter-6')
    ]
    vala_flags = ['--define', 'HAS_MUTTER330', '--define', 'HAS_MUTTER332', '--define', 'HAS_MUTTER334', '--define', 'HAS_MUTTER336']
    add_project_arguments(['-DCLUTTER_ENABLE_COMPOSITOR_API', '-DCLUTTER_ENABLE_EXPERIMENTAL_API',
        '-DCOGL_ENABLE_EXPERIMENTAL_API', '-DCOGL_ENABLE_EXPERIMENTAL_2_0_API'], language: 'c')
endif

if mutter_dep.length() == 0
    error ('No supported mutter library found!')
endif

mutter_typelib_dir = libmutter_dep.get_pkgconfig_variable('typelibdir')

add_project_arguments(vala_flags, language: 'vala')
add_project_link_arguments(['-Wl,-rpath,@0@'.format(mutter_typelib_dir)], language: 'c')

gala_base_dep = [glib_dep, gobject_dep, gio_dep, gmodule_dep, gee_dep, gtk_dep, plank_dep, mutter_dep, granite_dep, gnome_desktop_dep, m_dep, config_dep]

subdir('data')
subdir('lib')
subdir('src')
subdir('daemon')
subdir('plugins/maskcorners')
subdir('plugins/pip')
subdir('plugins/template')
subdir('plugins/zoom')
if get_option('documentation')
    subdir('docs')
endif
subdir('po')

vapigen = find_program('vapigen', required: false)
if vapigen.found()
    subdir('vapi')
endif

meson.add_install_script('build-aux/meson/post_install.py')