package lwjgl.tests;

import java.nio.ByteBuffer;

import org.lwjgl.*;
import org.lwjgl.system.*;
import org.lwjgl.llvm.*;

import static org.lwjgl.system.MemoryStack.*;
import static org.lwjgl.system.MemoryUtil.*;
import static org.lwjgl.llvm.LLVMCore.*;
import static org.lwjgl.llvm.ClangIndex.*;

public class CXStringTest {

    public static void main(String[] args) {
	if (Configuration.LLVM_LIBRARY_NAME.get() == null) {
            throw new IllegalStateException("Please configure the LLVM shared library path with -Dorg.lwjgl.llvm.libname=<path>");
        }
	if (Configuration.LLVM_CLANG_LIBRARY_NAME.get() == null) {
            throw new IllegalStateException("Please configure the clang shared library path with -Dorg.lwjgl.llvm.clang.libname=<path>");
        }
	//needed this to force loading of llvm lib before clang
	System.out.println("LLVM is multithreaded? " + LLVMIsMultithreaded());
	System.out.println("Got past loading LLVM and Clang native libs... WooHoo!");
	clang_enableStackTraces();
	CXString cxstr = null;
	try (MemoryStack stack = stackPush()) {
	    String testString = "Some Test String";
	    ByteBuffer strbuf = stack.ASCII(testString);
	    long strbufAddress = memAddress(strbuf);
	    cxstr = CXString.callocStack(stack);
	    memPutLong(cxstr.address(), strbufAddress);
	    String garbage_cstr = clang_getCString(cxstr);
	    System.out.println("Got garbage java String from cxstring using clang_getCString: " + garbage_cstr + ". garbage_cst == testString? "+ (garbage_cstr.equals(testString)));
	    String cstr = memUTF8Safe(memGetAddress(cxstr.address()));
	    System.out.println("Got correct java String from cxstring using ptr->ptr access: " + cstr  + ". cst == testString? "+ (cstr.equals(testString)));
	}
	clang_disposeString(cxstr);
    }
}