#include "CommandValidator.hpp"

CommandValidator::CommandValidator(void) {}
CommandValidator::CommandValidator(const CommandValidator &other) { (void)other; }
CommandValidator &CommandValidator::operator=(const CommandValidator &other) { (void)other; return (*this); }
CommandValidator::~CommandValidator(void) {}

bool CommandValidator::isKnownCommand(const std::string &cmd)
{
	return (cmd == "PASS"
		|| cmd == "NICK"
		|| cmd == "USER"
		|| cmd == "JOIN"
		|| cmd == "PART"
		|| cmd == "PRIVMSG"
		|| cmd == "NOTICE"
		|| cmd == "QUIT"
		|| cmd == "PING"
		|| cmd == "PONG"
		|| cmd == "KICK"
		|| cmd == "INVITE"
		|| cmd == "TOPIC"
		|| cmd == "MODE");
}

/*
	This is only syntactic/minimal validation.
	The real command handler still checks:
	- password correctness
	- nickname already used
	- channel exists
	- permissions/operator status
	- invite-only/key/limit modes
*/
bool CommandValidator::hasEnoughParams(const IrcMessage &msg)
{
	const std::string &cmd = msg.getCommand();

	if (cmd == "PASS") return (msg.paramCount() >= 1);
	if (cmd == "NICK") return (msg.paramCount() >= 1);
	if (cmd == "USER") return (msg.paramCount() >= 4);
	if (cmd == "JOIN") return (msg.paramCount() >= 1);
	if (cmd == "PART") return (msg.paramCount() >= 1);
	if (cmd == "PRIVMSG") return (msg.paramCount() >= 2);
	if (cmd == "NOTICE") return (msg.paramCount() >= 2);
	if (cmd == "QUIT") return (true);
	if (cmd == "PING") return (msg.paramCount() >= 1);
	if (cmd == "PONG") return (msg.paramCount() >= 1);
	if (cmd == "KICK") return (msg.paramCount() >= 2);
	if (cmd == "INVITE") return (msg.paramCount() >= 2);
	if (cmd == "TOPIC") return (msg.paramCount() >= 1);
	if (cmd == "MODE") return (msg.paramCount() >= 1);
	return (false);
}

/*
	Before registration, usually only PASS, NICK, USER, PING/PONG/QUIT are useful.
*/
bool CommandValidator::needsRegistration(const std::string &cmd)
{
	return !(cmd == "PASS"
		|| cmd == "NICK"
		|| cmd == "USER"
		|| cmd == "PING"
		|| cmd == "PONG"
		|| cmd == "QUIT");
}