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|
use rand::{thread_rng, distributions::{Weighted, WeightedChoice, Distribution}};
use serenity::http::AttachmentType;
use serenity::builder::CreateMessage;
use diesel::PgConnection;
use super::*;
use super::playback::CtxExt;
use ::db::*;
#[derive(Clone, Copy, Debug)]
enum MemeType {
Text,
Image,
Audio,
}
static mut MEME_WEIGHTS: [Weighted<MemeType>; 3] = [
Weighted { weight: 1, item: MemeType::Text },
Weighted { weight: 1, item: MemeType::Image },
Weighted { weight: 1, item: MemeType::Audio },
];
static mut TTS_WEIGHTS: [Weighted<bool>; 2] = [
Weighted { weight: 4, item: false },
Weighted { weight: 1, item: true }
];
command!(meme(ctx, msg, args) {
let ch = msg.channel_id;
if args.len() == 0 {
rand_meme(ctx, msg)?;
return Ok(());
}
});
fn rand_meme(ctx: &Context, message: &Message) -> Result<()> {
let conn = connection()?;
let should_audio = ctx.currently_playing() && ctx.users_listening()?;
let dist: WeightedChoice<'static, MemeType> = if should_audio {
WeightedChoice::new(unsafe { &mut MEME_WEIGHTS })
} else {
WeightedChoice::new(unsafe { &mut MEME_WEIGHTS[..2] })
};
match dist.sample(&mut thread_rng()) {
MemeType::Text => {
let mut text_meme = rand_text(&conn)?;
let mut ctr = 0;
while !should_audio && text_meme.audio_id.is_some() {
text_meme = rand_text(&conn)?;
ctr += 1;
if ctr > 10 {
warn!("looped 10 times trying to find a non-audio text meme");
return Ok(());
}
}
send_meme(ctx, &text_meme, &conn, message)?;
},
MemeType::Image => send_meme(ctx, &rand_image(&conn)?, &conn, message)?,
MemeType::Audio => send_meme(ctx, &rand_audio(&conn)?, &conn, message)?,
}
Ok(())
}
fn send_meme(ctx: &Context, t: &Meme, conn: &PgConnection, msg: &Message) -> Result<()> {
let image = t.image(conn);
let audio = t.audio(conn);
let dist = WeightedChoice::new(unsafe { &mut TTS_WEIGHTS });
let create_msg = |m: CreateMessage| {
let ret = m
.tts(dist.sample(&mut thread_rng()));
match t.content {
Some(ref text) => ret.content(text),
None => ret
}
};
match image {
Some(image) => msg.channel_id.send_files(vec!(AttachmentType::Bytes((&image?.data, &t.title))), create_msg)?,
None => msg.channel_id.send_message(create_msg)?,
};
// note: slight edge-case race condition here: there could have been something queued since we
// checked whether anything was playing. not a significant negative impact and unlikely, so i'm
// not worrying about it
if let Some(audio) = audio {
let audio = audio?;
let queue_lock = ctx.data.lock().get::<PlayQueue>().cloned().unwrap();
let mut play_queue = queue_lock.write().unwrap();
play_queue.queue.push_front(PlayArgs{
initiator: msg.author.name.clone(),
data: ::either::Right(audio.data.clone()),
sender_channel: msg.channel_id,
});
}
Ok(())
}
pub fn db_fallback(ctx: &mut Context, msg: &Message, s: &str) -> Result<()> {
Ok(())
}
|
