#include <Windows.h>
#include "pch.h"
#include "detours.h"
#include <string>




typedef cef_v8context_t* (*get_context)();

PVOID v8getcontext_source = NULL;

std::string script;

cef_v8context_t* v8getcontext_hooked() {
	cef_v8context_t* context = ((get_context)v8getcontext_source)();
	cef_browser_t* browser = context->get_browser(context);
	_cef_frame_t* frame = browser->get_main_frame(browser);
	CefString exec_script = "if(!window.__easyCefInject__){window.__easyCefInject__=true;" + script + "}";
	CefString url = "libeasycef/inject.js";
	frame->execute_java_script(frame, exec_script.GetStruct(), url.GetStruct(), 0);

	CefRefPtr<CefV8Context> context = CefV8Context::GetCurrentContext();


	//CefRefPtr<CefBrowser> browser = context->GetBrowser();
	//CefString jsCode = "alert('Hello, World!');";
	//browser->GetMainFrame()->ExecuteJavaScript(jsCode, browser->GetMainFrame()->GetURL(), 0);
	return context;
}

void StartHook()
{
	long err;
	DetourRestoreAfterWith();
	DetourTransactionBegin();
	DetourUpdateThread(GetCurrentThread());
	v8getcontext_source = DetourFindFunction("libcef.dll", "cef_v8context_get_current_context");
	if (v8getcontext_source) {
		DetourAttach(&v8getcontext_source, v8getcontext_hooked);
	}
	LONG err = DetourTransactionCommit();

}

void EndHook()
{
	DetourTransactionBegin();
	DetourUpdateThread(GetCurrentThread());
	DetourDetach(&v8getcontext_source, v8getcontext_hooked);
	DetourTransactionCommit();
}