#ifndef V3_SRC_TRANSACTION_HPP_
#define V3_SRC_TRANSACTION_HPP_

#include <grpc++/grpc++.h>
#include "proto/rpc.grpc.pb.h"

#include <string>

namespace etcdv3 {

class Transaction {
public:
	Transaction();
	Transaction(std::string const&);
	virtual ~Transaction();
	void init_compare(etcdserverpb::Compare::CompareResult, etcdserverpb::Compare::CompareTarget);
	void init_compare(std::string const &, etcdserverpb::Compare::CompareResult, etcdserverpb::Compare::CompareTarget);
	void init_compare(int, etcdserverpb::Compare::CompareResult, etcdserverpb::Compare::CompareTarget);

	void setup_basic_failure_operation(std::string const &key);
	void setup_set_failure_operation(std::string const &key, std::string const &value, int64_t leaseid);
	void setup_basic_create_sequence(std::string const &key, std::string const &value, int64_t leaseid);
	void setup_compare_and_swap_sequence(std::string const &valueToSwap, int64_t leaseid);
	void setup_delete_sequence(std::string const &key, std::string const &range_end, bool recursive);
	void setup_delete_failure_operation(std::string const &key, std::string const &range_end, bool recursive);
	void setup_compare_and_delete_operation(std::string const& key);
	void setup_lease_grant_operation(int ttl);
	void setup_lease_leases_operation();
  	void setup_lease_keepalive_operation(int64_t lease_id);
  	void setup_lease_revoke_operation(int64_t lease_id);
  	void setup_lease_timetolive_operation(int64_t lease_id, bool keys);

	// update without `get` and no `prev_kv` returned
	void setup_put(std::string const &key, std::string const &value);
	void setup_delete(std::string const &key);

	etcdserverpb::TxnRequest txn_request;
	etcdserverpb::LeaseGrantRequest leasegrant_request;
	etcdserverpb::LeaseLeasesRequest leaseleases_request;
  	etcdserverpb::LeaseKeepAliveRequest leasekeepalive_request;
  	etcdserverpb::LeaseRevokeRequest leaserevoke_request;
  	etcdserverpb::LeaseTimeToLiveRequest leasetimetolive_request;

private:
	std::string key;
};

}

#endif