// Loads coop_hook.dll into a target process via the classic
// CreateRemoteThread(LoadLibraryW) technique.
#pragma once

#include <string>

namespace coop
{

enum class InjectStatus
{
	Ok,
	OpenProcessFailed, // insufficient rights (try running the host as admin)
	BitnessMismatch,   // 32-bit target; the x86 hook/helper aren't available
	DllNotFound,
	AllocFailed,
	WriteFailed,
	RemoteThreadFailed,
	RemoteLoadFailed, // LoadLibraryW returned null inside the target
	HelperNotFound,   // 32-bit target but coop_inject_x86.exe / coop_hook_x86.dll missing
	HelperFailed,     // the x86 injector helper ran but reported failure
};

struct InjectResult
{
	InjectStatus status = InjectStatus::OpenProcessFailed;
	unsigned long os_error = 0; // GetLastError at the point of failure, if any
};

const char* to_string(InjectStatus status);

// Injects `dll_path` (absolute, the x64 coop_hook.dll) into `pid`. For a 32-bit
// (WOW64) target the x64 host can't inject directly, so it spawns the sibling
// coop_inject_x86.exe to load coop_hook_x86.dll (both expected next to dll_path).
InjectResult inject_dll(unsigned long pid, const std::wstring& dll_path);

} // namespace coop