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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 {
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_text(ctx, &text_meme, &conn, msg)?;
},
MemeType::Image => {
let image_meme = rand_image(&conn)?;
let image = image_meme.associated_data(&conn)?;
send_image(&image_meme, &image, ch)?;
},
MemeType::Audio => {
let audio = rand_audio(&conn)?.associated_data(&conn)?;
send_audio(ctx, msg, &audio)?;
}
}
}
});
fn send_text(ctx: &Context, t: &TextMeme, conn: &PgConnection, msg: &Message) -> Result<()> {
let (image, audio) = t.associated_data(conn)?;
let dist = WeightedChoice::new(unsafe { &mut TTS_WEIGHTS });
let create_msg = |m: CreateMessage| m
.tts(dist.sample(&mut thread_rng()))
.content(&t.content);
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)?,
};
if let Some(audio) = audio {
send_audio(ctx, msg, &audio)?;
}
Ok(())
}
fn send_image(image_meme: &ImageMeme, image: &Image, ch: ChannelId) -> Result<()> {
ch.send_files(vec!(AttachmentType::Bytes((&image.data, &image_meme.title))), |m| m.content(""))?;
Ok(())
}
// 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
fn send_audio(ctx: &Context, msg: &Message, audio: &Audio) -> Result<()> {
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(())
}
|
