use mio;

use server::{

    server::HWServer,

    client::ClientId,

    actions::{Action, Action::*}

};

use protocol::messages::{

    HWProtocolMessage,

    HWServerMessage::*

};

use utils::is_name_illegal;

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

    use 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) => {

            server.react(client_id, vec![chat_msg.send_all().but_self().action()]);

        },

        JoinRoom(name, password) => {

            let actions;

            {

                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];

                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 {

                        vec![MoveToRoom(r.id),

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

                    }

                } else {

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

                };

            }

            server.react(client_id, actions);

        },

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

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

    }

}