project('native-shell-client',
  'c',
  version: '0.0.1',
  default_options: [
    'warning_level=3',
    'c_std=gnu99',
  ],
  meson_version: '>= 0.60',
  license: 'MIT/Expat',
)

cc = meson.get_compiler('c')
add_project_arguments(
  cc.get_supported_arguments([
    '-Wno-unused-parameter',
    '-Wno-pedantic',
  ]),
  language: 'c'
)

add_project_arguments([
    '-DPACKAGE_STRING="native-app @0@"'.format(meson.project_version()),
    '-D_GNU_SOURCE',
    '-D_ALL_SOURCE',
  ],
  language: 'c'
)

optional_libc_funcs = [ 'memfd_create', 'strchrnul' ]
foreach func: optional_libc_funcs
    if cc.has_function(func)
        add_project_arguments('-DHAVE_@0@=1'.format(func.to_upper()), language: 'c')
    endif
endforeach

dep_scanner = dependency('wayland-scanner', native: true)
prog_scanner = find_program(dep_scanner.get_variable('wayland_scanner'))
dep_wp = dependency('wayland-protocols', version: '>= 1.12')
dir_wp_base = dep_wp.get_variable('pkgdatadir')
agl_compositor_dep = dependency('agl-compositor-0.0.22-protocols')
dir_agl_compositor_base = agl_compositor_dep.get_variable('pkgdatadir')

xdg_shell_xml = join_paths(dir_wp_base, 'stable', 'xdg-shell', 'xdg-shell.xml')

protocols = [
  { 'name': 'agl-shell', 'source': 'agl-compositor' },
  { 'name': 'xdg-shell', 'source': 'wp-stable' },
]

foreach proto: protocols
    proto_name = proto['name']
    if proto['source'] == 'agl-compositor'
        base_file = proto_name
        xml_path = join_paths(dir_agl_compositor_base, '@0@.xml'.format(base_file))
    elif proto['source'] == 'wp-stable'
        base_file = proto_name
	xml_path = join_paths(dir_wp_base, 'stable', proto_name, '@0@.xml'.format(base_file))
    endif

    foreach output_type: [ 'client-header', 'server-header', 'private-code' ]
	if output_type == 'client-header'
	    output_file = '@0@-client-protocol.h'.format(base_file)
	elif output_type == 'server-header'
	    output_file = '@0@-server-protocol.h'.format(base_file)
	else
	    output_file = '@0@-protocol.c'.format(base_file)
	    if dep_scanner.version().version_compare('< 1.14.91')
	        output_type = 'code'
	    endif
	endif

	var_name = output_file.underscorify()
	target = custom_target(
	    '@0@ @1@'.format(base_file, output_type),
	    command: [ prog_scanner, output_type, '@INPUT@', '@OUTPUT@' ],
	    input: xml_path,
	    output: output_file,
	)

        set_variable(var_name, target)
    endforeach
endforeach

deps_wayland = [
  dependency('wayland-client'),
]

srcs_native_app = [
	'shared/os-compatibility.c',
	'src/main.c',
	agl_shell_client_protocol_h,
	xdg_shell_client_protocol_h,
	xdg_shell_protocol_c,
	agl_shell_protocol_c,
]

exe_agl_compositor = executable(
	'native-shell-client',
	srcs_native_app,
	dependencies: deps_wayland,
	install: true
)