package gomcaptcha

/*
#cgo LDFLAGS: ./lib/libmcaptcha_pow_ffi.a -ldl
#include "./mcaptcha-pow-ffi/mcaptcha_pow_ffi.h"
#include <stdlib.h>
*/
import "C"

type ProofOfWork struct {
	Nonce  uint64
	Result string
}

func ProveWork(salt string, phrase string, difficulty uint) ProofOfWork {
	res := C.prove_work(C.CString(salt),
		C.CString(phrase), C.uint(difficulty))

	return ProofOfWork{
		Nonce:  uint64(res.nonce),
		Result: C.GoString(res.result),
	}

}

func (v ProofOfWork) IsSufficientDifficulty(salt string, difficulty uint) bool {
	res := C.is_sufficient_difficulty(
		C.ulong(v.Nonce),
		C.CString(v.Result),
		C.CString(salt),
		C.uint(difficulty))
	return bool(res)

}

func (v ProofOfWork) IsValidProof(phrase string, salt string) bool {
	res := C.is_valid_proof(
		C.ulong(v.Nonce),
		C.CString(v.Result),
		C.CString(phrase),
		C.CString(salt))
	return bool(res)

}