/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   join.cpp                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: iherman- <iherman-@student.42malaga.com    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2026/05/15 15:35:16 by aortigos          #+#    #+#             */
/*   Updated: 2026/05/23 18:32:37 by iherman-         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */


#include "../Server/Server.hpp"

void	Server::join_cmd(User &client, std::istringstream &ss)
{
	std::string	args;

	ss >> args;
	if (!client.isRegistered()) return (client.send(":" SERVER_NAME " 451 * :You have not registered\r\n"));
	if (args.empty()) return (client.send(":" SERVER_NAME " 461 " + client.getNick() + " JOIN :Not enough parameters\r\n"));
	
	std::map<std::string, Channel>::iterator it = channels_.find(args);

	// creates channel
	if (it == channels_.end())
	{
		channels_[args] = Channel(args);
		channels_[args].addMember(client.getFd());
		channels_[args].addOperator(client.getFd());
		client.joinChannel(args);
		
		std::string	joinMsg = ":" + client.getNick() + "!" + client.getUsername() + "@localhost JOIN " + args + "\r\n";
			channels_[args].broadcast(joinMsg, clients_, -1);

		std::string namesList = ":" SERVER_NAME " 353 " + client.getNick() + " = " + args + " :";
		const std::set<int> &members = channels_[args].getMembers();
		for (std::set<int>::const_iterator m = members.begin(); m != members.end(); m++)
		{
			std::map<int, User>::iterator u = clients_.find(*m);
			if (u != clients_.end())
			{
				if (channels_[args].hasOperator(*m))
					namesList += "@";
				namesList += u->second.getNick() + " ";
			}
		}
		client.send(namesList + "\r\n");
		client.send(":" SERVER_NAME " 366 " + client.getNick() + " " + args + " :End of /NAMES list\r\n");
	}
	else
	{
		if (it->second.hasMember(client.getFd()))
		{
			client.send(":" SERVER_NAME " 443 " + client.getNick() + " " + args + " :is already on channel\r\n");
			return ;			
		}

		if (it->second.isInviteOnly() && !it->second.isInvited(client.getFd()))
		{
			client.send(":" SERVER_NAME " 473 " + client.getNick() + " " + args + " :Cannot join channel (+i)\r\n");
			return ;			
		}

		it->second.addMember(client.getFd());

		client.joinChannel(it->first);

		std::string	joinMsg = ":" + client.getNick() + "!" + client.getUsername() + "@localhost JOIN " + args + "\r\n";
		channels_[args].broadcast(joinMsg, clients_, -1);

		std::string namesList = ":" SERVER_NAME " 353 " + client.getNick() + " = " + args + " :";
		const std::set<int> &members = channels_[args].getMembers();
		for (std::set<int>::const_iterator m = members.begin(); m != members.end(); m++)
		{
			std::map<int, User>::iterator u = clients_.find(*m);
			if (u != clients_.end())
			{
				if (channels_[args].hasOperator(*m))
					namesList += "@";
				namesList += u->second.getNick() + " ";
			}
		}
		client.send(namesList + "\r\n");
		client.send(":" SERVER_NAME " 366 " + client.getNick() + " " + args + " :End of /NAMES list\r\n");
	}
}