yttrium 1.0.0

#![allow(clippy::needless_return)]

use yttrium_key_base as key_base;
use key_base::environment::{
	Environment,
	events,
};
use key_base::databases::{
	DatabaseManager,
	Database,
};
use serenity::model::id::UserId;
use serenity::async_trait;

pub fn create<Manager: 'static + DatabaseManager<DB>, DB: 'static + Database>() -> Box<dyn key_base::Key<Manager, DB> + Send + Sync> {
	return Box::new(std_ban {
		info: create_key_info(),
	});
}

/*
Parameters:
Optional, reason, defaults to nothing
Optional, days to remove messages from, default 0
Optional, user id, defaults to the sender
*/
fn create_key_info() -> key_base::KeyInfo {
	return key_base::KeyInfo {
		name: String::from("ban"),
		parameters_required: vec![0, 1, 2, 3],
	};
}
#[allow(non_camel_case_types)]
struct std_ban {
	pub info: key_base::KeyInfo,
}

unsafe impl Send for std_ban {}
unsafe impl Sync for std_ban {}

#[async_trait]
impl<Manager: DatabaseManager<DB>, DB: Database> key_base::Key<Manager, DB> for std_ban {
	fn get_key_info(&self) -> &key_base::KeyInfo {
		return &self.info;
	}

	async fn run_key(&self, parameter: &[String], environment: &mut Environment<'_, Manager, DB>) -> Result<String, String> {
		let matcher = regex::Regex::new(key_base::regexes::DISCORD_ID).unwrap();
		let guild_id = environment.guild_id;
		let user_id;
		let mut days_to_remove = 0;
		if parameter.len() >= 2 {
			if let Ok(value) = parameter[1].parse() {
				days_to_remove = value;
			}
		}
		if parameter.len() == 3 && matcher.is_match(&parameter[2]) {
			user_id = UserId::from(parameter[2].parse::<u64>().unwrap());
		} else {
			match &environment.event_info {
				events::EventType::Message(event) => {
					user_id = event.user_id;
				}
				events::EventType::MemberJoin(event) => {
					user_id = event.user_id;
					}
				events::EventType::MemberUpdate(event) => {
					user_id = event.user_id;
				}
				events::EventType::VoiceUpdate(event) => {
					user_id = event.user_id;
				}
				events::EventType::ReactionAdd(event) => {
					user_id = event.user_id;
				}
				events::EventType::ReactionRemove(event) => {
					user_id = event.user_id;
				}
				_ => {
					return Err(String::from("`ban` called without user ID on invalid event"));
				}
			}
		}
		let member;
		match environment.discord_context.cache.member(guild_id, user_id).await {
			Some(memb) => {
				member = memb;
			}
			None => {
				return Err(String::from("User does not exist"));
			}
		}
		if parameter.len() >= 2 {
			let reason = &parameter[0];
			if let Err(error) = member.ban_with_reason(&environment.discord_context.http, days_to_remove, reason).await {
				return Err(error.to_string());
			};
		} else if let Err(error) = member.ban(&environment.discord_context.http, days_to_remove).await {
			return Err(error.to_string());
		}
		return Ok(String::new());
	}
}