// Copyright (c) 2019 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

use std::env::args;
use std::str::FromStr;
use tokio_xmpp::jid::BareJid;
use xmpp::muc::room::RoomMessageSettings;
use xmpp::{ClientBuilder, ClientFeature, ClientType, Event};

#[tokio::main]
async fn main() -> Result<(), Option<()>> {
    env_logger::init();

    let args: Vec<String> = args().collect();
    if args.len() != 3 {
        println!("Usage: {} <jid> <password>", args[0]);
        return Err(None);
    }

    let jid = BareJid::from_str(&args[1]).expect(&format!("Invalid JID: {}", &args[1]));
    let password = &args[2];

    // Client instance
    let mut client = ClientBuilder::new(jid, password)
        .set_client(ClientType::Bot, "xmpp-rs")
        .set_website("https://gitlab.com/xmpp-rs/xmpp-rs")
        .set_default_nick("bot")
        .enable_feature(ClientFeature::ContactList)
        .enable_feature(ClientFeature::JoinRooms)
        .build();

    loop {
        for event in client.wait_for_events().await {
            match event {
                Event::Online => {
                    log::info!("Online.");
                }
                Event::Disconnected(e) => {
                    log::info!("Disconnected: {}.", e);
                }
                Event::ChatMessage(_id, jid, body, time_info) => {
                    log::info!(
                        "{} {}: {}",
                        time_info.received.time().format("%H:%M"),
                        jid,
                        body.0
                    );
                }
                Event::RoomJoined(jid) => {
                    log::info!("Joined room {}.", jid);
                    client
                        .send_room_message(RoomMessageSettings::new(jid, "Hello world!"))
                        .await;
                }
                Event::RoomMessage(_id, jid, nick, body, time_info) => {
                    println!(
                        "Message in room {} from {} at {}: {}",
                        jid, nick, time_info.received, body.0
                    );
                }
                _ => {
                    log::debug!("Unimplemented event:\n{:#?}", event);
                }
            }
        }
    }
}