#import "util/get_source.script" get_source;

str targetName #option;
int processorCount #option;
bool rebuild #option;

void Start() {
	if processorCount == 0 processorCount = SystemGetProcessorCount();

	bool install = false;

	if !PathExists("bin/musl") {
		get_source.Get("https://musl.libc.org/releases/musl-1.2.1.tar.gz", "musl-1.2.1", 
				"68af6e18539f646f9c41a3a2bb25be4a5cfa5a8f65f0bb647fd2bbfdf877e84b");
		assert PathMove("bin/source", "bin/musl");
		assert FileCopy("ports/musl/changes/config.mak", "bin/musl/config.mak");
		assert FileCopy("ports/musl/changes/dist_config.mak", "bin/musl/dist/config.mak");
		assert FileCopy("ports/musl/changes/arch_x86_64_syscall_arch.h", "bin/musl/arch/x86_64/syscall_arch.h");
		assert FileCopy("ports/musl/changes/src_env___init_tls.c", "bin/musl/src/env/__init_tls.c");
		assert FileCopy("ports/musl/changes/src_process_x86_64_vfork.s", "bin/musl/src/process/x86_64/vfork.s");
		assert FileCopy("ports/musl/changes/src_signal_x86_64_restore.s", "bin/musl/src/signal/x86_64/restore.s");
		assert FileCopy("ports/musl/changes/src_thread_x86_64___unmapself.s", "bin/musl/src/thread/x86_64/__unmapself.s");
		assert FileCopy("ports/musl/changes/src_thread_x86_64_clone.s", "bin/musl/src/thread/x86_64/clone.s");
		assert FileCopy("ports/musl/changes/src_thread_x86_64_syscall_cp.s", "bin/musl/src/thread/x86_64/syscall_cp.s");
		install = true;
	}

	if rebuild {
		assert SystemShellExecuteWithWorkingDirectory("bin/musl", "make clean");
		assert SystemShellExecuteWithWorkingDirectory("bin/musl", "make -j %processorCount% lib/libc.a");
		assert FileCopy("bin/musl/lib/libc.a", "ports/musl/libc.a");
		install = true;
	}

	if !PathExists("root/Applications/POSIX/include/stdio.h") {
		install = true;
	}

	if install {
		assert PathCreateLeadingDirectories("root/Applications/POSIX/lib");
		assert PathCreateLeadingDirectories("root/Applications/POSIX/include");

		assert FileCopy("ports/musl/libc.a", "root/Applications/POSIX/lib/libc.a");
		assert FileCopy("ports/musl/empty.a", "root/Applications/POSIX/lib/libm.a");
		assert FileCopy("ports/musl/empty.a", "root/Applications/POSIX/lib/libpthread.a");
		assert FileCopy("ports/musl/empty.a", "root/Applications/POSIX/lib/librt.a");

		// TODO Replace calls to cp.

		assert SystemShellExecute("cp -p -r bin/musl/include/* root/Applications/POSIX/include/");
		assert SystemShellExecute("cp -p -r bin/musl/arch/generic/* root/Applications/POSIX/include/");
		assert SystemShellExecute("cp -p -r ports/musl/obj_bits_%targetName%/* root/Applications/POSIX/include/");

		if targetName == "x86_64" {
			assert SystemShellExecute("cp -p -r bin/musl/arch/x86_64/* root/Applications/POSIX/include/");
		} else if targetName == "x86_32" {
			assert SystemShellExecute("cp -p -r bin/musl/arch/i386/* root/Applications/POSIX/include/");
		} else {
			assert false;
		}
	}
}