// Copyright (C) 2023-2099 The crate authors.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU Affero General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
// for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

use crate::webhook::{format_webhook, WebHook};

use std::str::FromStr;

use log::debug;
use xmpp::{Agent, ClientBuilder, ClientFeature, ClientType, Event};
use xmpp_parsers::{message::MessageType, BareJid, Jid};

pub struct XmppClient {
	is_online: bool,
	agent: Agent,
}

impl XmppClient {
	pub fn new(jid: &str, password: &str) -> XmppClient {
		let agent = 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::JoinRooms)
			.build()
			.unwrap();

		XmppClient {
			is_online: false,
			agent,
		}
	}

	pub async fn next(&mut self) {
		if let Some(events) = self.agent.wait_for_events().await {
			for event in events {
				match event {
					Event::Online => {
						self.is_online = true;
						debug!("XMPP Online");

						self.agent
							.join_room(
								BareJid::from_str("chat@xmpp.rs").unwrap(),
								Some(String::from("bot")),
								None,
								"en",
								"Hi there!",
							)
							.await
					}
					_ => {
						debug!("XMPP Event not supported")
					}
				}
			}
		}
	}

	pub async fn webhook(&mut self, wh: WebHook) {
		debug!("Received Webhook");
		if let Some(display) = format_webhook(&wh) {
			debug!("Webhook: {}", display);
			self.agent
				.send_message(
					Jid::Bare(BareJid::from_str("chat@xmpp.rs").unwrap()),
					MessageType::Groupchat,
					"en",
					&display,
				)
				.await
		}
	}
}