use mio;

use crate::{

    server::{

        core::HWServer,

        coretypes::ClientId,

        actions::{Action, Action::*}

    },

    protocol::messages::{

        HWProtocolMessage,

        HWServerMessage::*

    },

    utils::is_name_illegal

};

use super::common::rnd_reply;

use log::*;

pub fn handle(server: &mut HWServer, client_id: ClientId, message: HWProtocolMessage) {

    use crate::protocol::messages::HWProtocolMessage::*;

    match message {

        CreateRoom(name, password) => {

            let actions =

                if is_name_illegal(&name) {

                    vec![Warn("Illegal room name! A room name must be between 1-40 characters long, must not have a trailing or leading space and must not have any of these characters: $()*+?[]^{|}".to_string())]

                } else if server.has_room(&name) {

                    vec![Warn("A room with the same name already exists.".to_string())]

                } else {

                    let flags_msg = ClientFlags(

                        "+hr".to_string(),

                        vec![server.clients[client_id].nick.clone()]);

                    vec![AddRoom(name, password),

                         flags_msg.send_self().action()]

                };

            server.react(client_id, actions);

        },

        Chat(msg) => {

            let actions = vec![ChatMsg {nick: server.clients[client_id].nick.clone(), msg}

                .send_all().in_room(server.lobby_id).but_self().action()];

            server.react(client_id, actions);

        },

        JoinRoom(name, _password) => {

            let room = server.rooms.iter().find(|(_, r)| r.name == name);

            let room_id = room.map(|(_, r)| r.id);

            let nicks = server.clients.iter()

                .filter(|(_, c)| c.room_id == room_id)

                .map(|(_, c)| c.nick.clone())

                .collect();

            let c = &mut server.clients[client_id];

            let actions = if let Some((_, r)) = room {

                if c.protocol_number != r.protocol_number {

                    vec![Warn("Room version incompatible to your Hedgewars version!".to_string())]

                } else if r.is_join_restricted() {

                    vec![Warn("Access denied. This room currently doesn't allow joining.".to_string())]

                } else if r.players_number == u8::max_value() {

                    vec![Warn("This room is already full".to_string())]

                } else {

                    vec![MoveToRoom(r.id),

                         RoomJoined(nicks).send_self().action()]

                }

            } else {

                vec![Warn("No such room.".to_string())]

            };

            server.react(client_id, actions);

        },

        Rnd(v) => {

            server.react(client_id, vec![rnd_reply(&v).send_self().action()]);

        },

        List => warn!("Deprecated LIST message received"),

        _ => warn!("Incorrect command in lobby state"),

    }

}