#import "util/get_source.script" get_source;

str targetName #option;
str toolchainPrefix #option;
int processorCount #option;

void Start() {
	str rootDirectory = PathGetDefaultPrefix() + "/root";
	if processorCount == 0 processorCount = SystemGetProcessorCount();

	get_source.Get("https://archive.mesa3d.org/mesa-20.1.8.tar.xz", "mesa-20.1.8",
			"df21351494f7caaec5a3ccc16f14f15512e98d2ecde178bba1d134edc899b961");

	assert FileWriteAll("bin/meson_cross.txt", 
			"[binaries]\nc = '%toolchainPrefix%-gcc'\ncpp = '%toolchainPrefix%-g++'\nar = '%toolchainPrefix%-ar'\nstrip = '%toolchainPrefix%-strip'\n"
			+ "[properties]\nsys_root = '%rootDirectory%'\nc_args = ['-D_POSIX_SOURCE']\ncpp_args = ['-D_POSIX_SOURCE']\n"
			+ "[host_machine]\nsystem = 'essence'\ncpu_family = '%targetName%'\ncpu = 'generic'\nendian = 'little'\n");

	assert FileCopy("ports/mesa/changes/include_c11_threads_posix.h", "bin/source/include/c11/threads_posix.h");
	assert FileCopy("ports/mesa/changes/src_util_detect_os.h", "bin/source/src/util/detect_os.h");
	assert FileCopy("ports/mesa/changes/src_util_u_thread.h", "bin/source/src/util/u_thread.h");
	assert FileCopy("ports/mesa/changes/src_util_anon_file.c", "bin/source/src/util/anon_file.c");
	assert FileCopy("ports/mesa/changes/src_util_os_misc.c", "bin/source/src/util/os_misc.c");
	assert FileCopy("ports/mesa/changes/meson.build", "bin/source/meson.build");
	assert FileCopy("ports/mesa/changes/src_gallium_targets_osmesa_meson.build", "bin/source/src/gallium/targets/osmesa/meson.build");

	assert SystemShellExecuteWithWorkingDirectory("bin/source", "meson ../build-mesa --cross-file ../meson_cross.txt "
			+ "-Dosmesa=gallium -Ddefault_library=static -Dllvm=false");
	assert SystemShellExecuteWithWorkingDirectory("bin/source", "ninja -C ../build-mesa -j %processorCount%");

	assert FileCopy("bin/build-mesa/subprojects/expat-2.2.5/libexpat.a", "root/Applications/POSIX/lib/libexpat.a");
	assert FileCopy("bin/build-mesa/subprojects/zlib-1.2.11/libz.a", "root/Applications/POSIX/lib/libz.a");
	assert FileCopy("bin/build-mesa/src/gallium/targets/osmesa/libOSMesa.a", "root/Applications/POSIX/lib/libOSMesa.a");
	assert SystemShellExecute("cp -r bin/source/include/GL root/Applications/POSIX/include");
	assert SystemShellExecute("cp -r bin/source/include/KHR root/Applications/POSIX/include");
	assert FileCopy("bin/source/docs/license.html", "bin/Mesa License.html");

	PathDeleteRecursively("bin/source");
	PathDeleteRecursively("bin/build-mesa");
}