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use crate::HandlerConfig;
use anyhow::{anyhow, Context as _, Result};
use serenity::all::{Context, MessageBuilder};
use std::{sync::Arc, time::Duration};
use time::{Date, OffsetDateTime, Weekday};
use tokio::{
fs::{self, create_dir_all, File},
time::{interval, MissedTickBehavior},
};
static REACTS: &[char] = &['✅', '❌', '❔'];
pub async fn start(config: Arc<HandlerConfig>, ctx: Context) {
let mut timer = interval(Duration::from_secs(1));
timer.set_missed_tick_behavior(MissedTickBehavior::Skip);
loop {
timer.tick().await;
if let Err(err) = tick(&*config, &ctx).await {
log::error!("{err:?}");
}
}
}
async fn tick(config: &HandlerConfig, ctx: &Context) -> Result<()> {
let now = OffsetDateTime::now_local().context("Failed to get current time")?;
if now.weekday() != Weekday::Sunday {
// Wait to post 'till Sunday.
return Ok(());
}
let mut now_path = config.db_dir.join("labwatch");
create_dir_all(&now_path)
.await
.with_context(|| anyhow!("Failed to create {now_path:?}"))?;
now_path.push(date_name(now.date()));
if fs::try_exists(&now_path)
.await
.with_context(|| anyhow!("Failed to check if {now_path:?} exists"))?
{
// Already posted this week.
return Ok(());
}
File::create(&now_path)
.await
.with_context(|| anyhow!("Failed to create {now_path:?}"))?;
let mut date = now.date();
for _ in 1..=5 {
date = date.next_day().context("Reached the end of times")?;
let msg = MessageBuilder::new().push(date_name(date)).build();
let msg = config
.labwatch_channel_id
.say(&ctx.http, &msg)
.await
.with_context(|| anyhow!("Failed to send message for {date}"))?;
for &react in REACTS {
msg.react(&ctx.http, react).await.with_context(|| {
anyhow!("Failed to react with {react} on the message for {date}")
})?;
}
}
Ok(())
}
fn date_name(date: Date) -> String {
format!("{}, {} {}", date.weekday(), date.month(), date.day())
}
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