project(
	'wayvnc',
	'c',
	version: '0.5.0',
	license: 'ISC',
	default_options: [
		'c_std=gnu11',
	],
)

buildtype = get_option('buildtype')
host_system = host_machine.system()
prefix = get_option('prefix')

c_args = [
	'-DPROJECT_VERSION="@0@"'.format(meson.project_version()),
	'-D_GNU_SOURCE',
	'-DAML_UNSTABLE_API=1',
]

git = find_program('git', native: true, required: false)
if git.found()
	git_describe = run_command([git, 'describe', '--tags', '--long'])
	git_branch = run_command([git, 'rev-parse', '--abbrev-ref', 'HEAD'])
	if git_describe.returncode() == 0 and git_branch.returncode() == 0
		c_args += '-DGIT_VERSION="@0@ (@1@)"'.format(
			git_describe.stdout().strip(),
			git_branch.stdout().strip(),
		)
	endif
endif

if buildtype != 'debug' and buildtype != 'debugoptimized'
	c_args += '-DNDEBUG'
endif

add_project_arguments(c_args, language: 'c')

cc = meson.get_compiler('c')

libm = cc.find_library('m', required: false)
librt = cc.find_library('rt', required: false)
libpam = cc.find_library('pam', required: get_option('pam'))

pixman = dependency('pixman-1')
gbm = dependency('gbm', required: get_option('screencopy-dmabuf'))
drm = dependency('libdrm')
xkbcommon = dependency('xkbcommon', version: '>=1.0.0')
wayland_client = dependency('wayland-client')
jansson = dependency('jansson')

neatvnc_version = '>=0.5.0'

neatvnc_project = subproject(
	'neatvnc',
	required: false,
	version: neatvnc_version,
)

aml_project = subproject('aml', required: false)
if aml_project.found()
	aml = aml_project.get_variable('aml_dep')
else
	aml = dependency('aml')
endif

if neatvnc_project.found()
	neatvnc = neatvnc_project.get_variable('neatvnc_dep')
else
	neatvnc = dependency('neatvnc', version: neatvnc_version)
endif

inc = include_directories('include')

subdir('protocols')

sources = [
	'src/main.c',
	'src/strlcpy.c',
	'src/shm.c',
	'src/screencopy.c',
	'src/data-control.c',
	'src/output.c',
	'src/pointer.c',
	'src/keyboard.c',
	'src/seat.c',
	'src/smooth.c',
	'src/cfg.c',
	'src/intset.c',
	'src/buffer.c',
	'src/pixels.c',
	'src/transform-util.c',
	'src/util.c',
	'src/json-ipc.c',
	'src/ctl-server.c',
]

dependencies = [
	libm,
	librt,
	pixman,
	aml,
	gbm,
	drm,
	wayland_client,
	neatvnc,
	xkbcommon,
	client_protos,
	jansson,
]

config = configuration_data()

config.set('PREFIX', '"' + prefix + '"')

if host_system == 'linux' and get_option('systemtap') and cc.has_header('sys/sdt.h')
	config.set('HAVE_USDT', true)
endif

if cc.has_function('memfd_create')
	config.set('HAVE_MEMFD', true)
	config.set('HAVE_MEMFD_CREATE', true)
elif cc.has_function('SYS_memfd_create', prefix : '#include <sys/syscall.h>')
	config.set('HAVE_MEMFD', true)
endif

if gbm.found() and not get_option('screencopy-dmabuf').disabled()
	config.set('ENABLE_SCREENCOPY_DMABUF', true)
endif

if libpam.found()
	dependencies += libpam
	sources += 'src/pam_auth.c'
	config.set('ENABLE_PAM', true)
endif

configure_file(
	output: 'config.h',
	configuration: config,
)

executable(
	'wayvnc',
	sources,
	dependencies: dependencies,
	include_directories: inc,
	install: true,
)

scdoc = dependency('scdoc', native: true, required: get_option('man-pages'))
if scdoc.found()
	scdoc_prog = find_program(scdoc.get_pkgconfig_variable('scdoc'), native: true)
	sh = find_program('sh', native: true)
	mandir = get_option('mandir')
	input = 'wayvnc.scd'
	output = 'wayvnc.1'

	custom_target(
		output,
		input: input,
		output: output,
		command: [
			sh, '-c', '@0@ <@INPUT@ >@1@'.format(scdoc_prog.path(), output)
		],
		install: true,
		install_dir: '@0@/man1'.format(mandir)
	)
endif