595 lines
18 KiB
Rust
595 lines
18 KiB
Rust
use chrono::Duration;
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use chrono_tz::Tz;
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use lazy_static::lazy_static;
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use log::{error, info, warn};
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use num_integer::Integer;
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use regex::{Captures, Regex};
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use serde::Deserialize;
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use serenity::{
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builder::CreateEmbed,
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http::{CacheHttp, Http, HttpError, StatusCode},
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model::{
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channel::{Channel, Embed as SerenityEmbed},
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id::ChannelId,
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webhook::Webhook,
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},
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Error, Result,
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};
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use sqlx::{
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types::{
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chrono::{NaiveDateTime, Utc},
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Json,
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},
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Executor,
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};
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use crate::Database;
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lazy_static! {
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pub static ref TIMEFROM_REGEX: Regex =
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Regex::new(r#"<<timefrom:(?P<time>\d+):(?P<format>.+)?>>"#).unwrap();
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pub static ref TIMENOW_REGEX: Regex =
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Regex::new(r#"<<timenow:(?P<timezone>(?:\w|/|_)+):(?P<format>.+)?>>"#).unwrap();
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}
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fn fmt_displacement(format: &str, seconds: u64) -> String {
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let mut seconds = seconds;
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let mut days: u64 = 0;
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let mut hours: u64 = 0;
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let mut minutes: u64 = 0;
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for (rep, time_type, div) in
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[("%d", &mut days, 86400), ("%h", &mut hours, 3600), ("%m", &mut minutes, 60)].iter_mut()
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{
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if format.contains(*rep) {
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let (divided, new_seconds) = seconds.div_rem(&div);
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**time_type = divided;
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seconds = new_seconds;
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}
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}
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format
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.replace("%s", &seconds.to_string())
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.replace("%m", &minutes.to_string())
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.replace("%h", &hours.to_string())
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.replace("%d", &days.to_string())
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}
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pub fn substitute(string: &str) -> String {
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let new = TIMEFROM_REGEX.replace(string, |caps: &Captures| {
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let final_time = caps.name("time").map(|m| m.as_str().parse::<i64>().ok()).flatten();
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let format = caps.name("format").map(|m| m.as_str());
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if let (Some(final_time), Some(format)) = (final_time, format) {
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let dt = NaiveDateTime::from_timestamp(final_time, 0);
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let now = Utc::now().naive_utc();
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let difference = {
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if now < dt {
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dt - Utc::now().naive_utc()
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} else {
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Utc::now().naive_utc() - dt
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}
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};
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fmt_displacement(format, difference.num_seconds() as u64)
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} else {
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String::new()
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}
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});
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TIMENOW_REGEX
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.replace(&new, |caps: &Captures| {
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let timezone = caps.name("timezone").map(|m| m.as_str().parse::<Tz>().ok()).flatten();
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let format = caps.name("format").map(|m| m.as_str());
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if let (Some(timezone), Some(format)) = (timezone, format) {
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let now = Utc::now().with_timezone(&timezone);
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now.format(format).to_string()
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} else {
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String::new()
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}
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})
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.to_string()
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}
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struct Embed {
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title: String,
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description: String,
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image_url: Option<String>,
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thumbnail_url: Option<String>,
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footer: String,
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footer_url: Option<String>,
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author: String,
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author_url: Option<String>,
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color: u32,
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fields: Json<Vec<EmbedField>>,
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}
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#[derive(Deserialize)]
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struct EmbedField {
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title: String,
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value: String,
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inline: bool,
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}
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impl Embed {
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pub async fn from_id(
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pool: impl Executor<'_, Database = Database> + Copy,
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id: u32,
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) -> Option<Self> {
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match sqlx::query_as!(
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Self,
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r#"
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SELECT
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`embed_title` AS title,
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`embed_description` AS description,
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`embed_image_url` AS image_url,
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`embed_thumbnail_url` AS thumbnail_url,
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`embed_footer` AS footer,
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`embed_footer_url` AS footer_url,
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`embed_author` AS author,
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`embed_author_url` AS author_url,
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`embed_color` AS color,
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IFNULL(`embed_fields`, '[]') AS "fields:_"
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FROM reminders
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WHERE `id` = ?"#,
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id
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)
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.fetch_one(pool)
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.await
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{
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Ok(mut embed) => {
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embed.title = substitute(&embed.title);
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embed.description = substitute(&embed.description);
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embed.footer = substitute(&embed.footer);
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embed.fields.iter_mut().for_each(|mut field| {
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field.title = substitute(&field.title);
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field.value = substitute(&field.value);
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});
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if embed.has_content() {
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Some(embed)
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} else {
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None
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}
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}
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Err(e) => {
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warn!("Error loading embed from reminder: {:?}", e);
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None
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}
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}
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}
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pub fn has_content(&self) -> bool {
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if self.title.is_empty()
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&& self.description.is_empty()
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&& self.image_url.is_none()
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&& self.thumbnail_url.is_none()
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&& self.footer.is_empty()
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&& self.footer_url.is_none()
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&& self.author.is_empty()
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&& self.author_url.is_none()
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&& self.fields.0.is_empty()
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{
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false
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} else {
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true
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}
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}
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}
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impl Into<CreateEmbed> for Embed {
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fn into(self) -> CreateEmbed {
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let mut c = CreateEmbed::default();
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c.title(&self.title)
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.description(&self.description)
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.color(self.color)
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.author(|a| {
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a.name(&self.author);
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if let Some(author_icon) = &self.author_url {
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a.icon_url(author_icon);
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}
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a
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})
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.footer(|f| {
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f.text(&self.footer);
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if let Some(footer_icon) = &self.footer_url {
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f.icon_url(footer_icon);
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}
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f
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});
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for field in &self.fields.0 {
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c.field(&field.title, &field.value, field.inline);
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}
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if let Some(image_url) = &self.image_url {
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c.image(image_url);
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}
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if let Some(thumbnail_url) = &self.thumbnail_url {
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c.thumbnail(thumbnail_url);
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}
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c
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}
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}
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#[derive(Debug)]
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pub struct Reminder {
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id: u32,
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channel_id: u64,
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webhook_id: Option<u64>,
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webhook_token: Option<String>,
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channel_paused: bool,
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channel_paused_until: Option<NaiveDateTime>,
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enabled: bool,
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tts: bool,
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pin: bool,
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content: String,
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attachment: Option<Vec<u8>>,
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attachment_name: Option<String>,
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utc_time: NaiveDateTime,
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timezone: String,
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restartable: bool,
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expires: Option<NaiveDateTime>,
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interval_seconds: Option<u32>,
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interval_months: Option<u32>,
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avatar: Option<String>,
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username: Option<String>,
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}
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impl Reminder {
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pub async fn fetch_reminders(pool: impl Executor<'_, Database = Database> + Copy) -> Vec<Self> {
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match sqlx::query_as_unchecked!(
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Reminder,
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r#"
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SELECT
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reminders.`id` AS id,
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channels.`channel` AS channel_id,
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channels.`webhook_id` AS webhook_id,
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channels.`webhook_token` AS webhook_token,
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channels.`paused` AS 'channel_paused',
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channels.`paused_until` AS 'channel_paused_until',
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reminders.`enabled` AS 'enabled',
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reminders.`tts` AS tts,
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reminders.`pin` AS pin,
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reminders.`content` AS content,
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reminders.`attachment` AS attachment,
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reminders.`attachment_name` AS attachment_name,
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reminders.`utc_time` AS 'utc_time',
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reminders.`timezone` AS timezone,
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reminders.`restartable` AS restartable,
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reminders.`expires` AS 'expires',
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reminders.`interval_seconds` AS 'interval_seconds',
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reminders.`interval_months` AS 'interval_months',
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reminders.`avatar` AS avatar,
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reminders.`username` AS username
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FROM
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reminders
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INNER JOIN
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channels
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ON
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reminders.channel_id = channels.id
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WHERE
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reminders.`utc_time` < NOW()
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"#,
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)
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.fetch_all(pool)
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.await
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{
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Ok(reminders) => reminders
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.into_iter()
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.map(|mut rem| {
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rem.content = substitute(&rem.content);
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rem
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})
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.collect::<Vec<Self>>(),
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Err(e) => {
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warn!("Could not fetch reminders: {:?}", e);
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vec![]
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}
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}
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}
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async fn reset_webhook(&self, pool: impl Executor<'_, Database = Database> + Copy) {
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let _ = sqlx::query!(
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"
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UPDATE channels SET webhook_id = NULL, webhook_token = NULL WHERE channel = ?
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",
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self.channel_id
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)
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.execute(pool)
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.await;
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}
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async fn refresh(&self, pool: impl Executor<'_, Database = Database> + Copy) {
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if self.interval_seconds.is_some() || self.interval_months.is_some() {
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let now = Utc::now().naive_local();
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let mut updated_reminder_time = self.utc_time;
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if let Some(interval) = self.interval_months {
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match sqlx::query!(
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// use the second date_add to force return value to datetime
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"SELECT DATE_ADD(DATE_ADD(?, INTERVAL ? MONTH), INTERVAL 0 SECOND) AS new_time",
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updated_reminder_time,
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interval
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)
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.fetch_one(pool)
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.await
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{
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Ok(row) => match row.new_time {
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Some(datetime) => {
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updated_reminder_time = datetime;
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}
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None => {
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warn!("Could not update interval by months: got NULL");
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updated_reminder_time += Duration::days(30);
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}
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},
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Err(e) => {
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warn!("Could not update interval by months: {:?}", e);
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// naively fallback to adding 30 days
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updated_reminder_time += Duration::days(30);
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}
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}
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}
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if let Some(interval) = self.interval_seconds {
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while updated_reminder_time < now {
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updated_reminder_time += Duration::seconds(interval as i64);
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}
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}
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if self.expires.map_or(false, |expires| {
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NaiveDateTime::from_timestamp(updated_reminder_time.timestamp(), 0) > expires
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}) {
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self.force_delete(pool).await;
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} else {
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sqlx::query!(
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"
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UPDATE reminders SET `utc_time` = ? WHERE `id` = ?
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",
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updated_reminder_time,
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self.id
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)
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.execute(pool)
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.await
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.expect(&format!("Could not update time on Reminder {}", self.id));
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}
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} else {
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self.force_delete(pool).await;
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}
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}
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async fn force_delete(&self, pool: impl Executor<'_, Database = Database> + Copy) {
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sqlx::query!(
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"
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DELETE FROM reminders WHERE `id` = ?
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",
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self.id
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)
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.execute(pool)
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.await
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.expect(&format!("Could not delete Reminder {}", self.id));
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}
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async fn pin_message<M: Into<u64>>(&self, message_id: M, http: impl AsRef<Http>) {
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let _ = http.as_ref().pin_message(self.channel_id, message_id.into(), None).await;
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}
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pub async fn send(
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&self,
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pool: impl Executor<'_, Database = Database> + Copy,
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cache_http: impl CacheHttp,
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) {
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async fn send_to_channel(
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cache_http: impl CacheHttp,
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reminder: &Reminder,
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embed: Option<CreateEmbed>,
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) -> Result<()> {
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let channel = ChannelId(reminder.channel_id).to_channel(&cache_http).await;
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match channel {
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Ok(Channel::Guild(channel)) => {
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match channel
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.send_message(&cache_http, |m| {
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m.content(&reminder.content).tts(reminder.tts);
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if let (Some(attachment), Some(name)) =
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(&reminder.attachment, &reminder.attachment_name)
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{
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m.add_file((attachment as &[u8], name.as_str()));
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}
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if let Some(embed) = embed {
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m.set_embed(embed);
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}
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m
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})
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.await
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{
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Ok(m) => {
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if reminder.pin {
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reminder.pin_message(m.id, cache_http.http()).await;
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}
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Ok(())
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}
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Err(e) => Err(e),
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}
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}
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Ok(Channel::Private(channel)) => {
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match channel
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.send_message(&cache_http.http(), |m| {
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m.content(&reminder.content).tts(reminder.tts);
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if let (Some(attachment), Some(name)) =
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(&reminder.attachment, &reminder.attachment_name)
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{
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m.add_file((attachment as &[u8], name.as_str()));
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}
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if let Some(embed) = embed {
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m.set_embed(embed);
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}
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m
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})
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.await
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{
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Ok(m) => {
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if reminder.pin {
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reminder.pin_message(m.id, cache_http.http()).await;
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}
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Ok(())
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}
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Err(e) => Err(e),
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}
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}
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Err(e) => Err(e),
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_ => Err(Error::Other("Channel not of valid type")),
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}
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}
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async fn send_to_webhook(
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cache_http: impl CacheHttp,
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reminder: &Reminder,
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webhook: Webhook,
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embed: Option<CreateEmbed>,
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) -> Result<()> {
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match webhook
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.execute(&cache_http.http(), reminder.pin || reminder.restartable, |w| {
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w.content(&reminder.content).tts(reminder.tts);
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if let Some(username) = &reminder.username {
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w.username(username);
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}
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if let Some(avatar) = &reminder.avatar {
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w.avatar_url(avatar);
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}
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if let (Some(attachment), Some(name)) =
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(&reminder.attachment, &reminder.attachment_name)
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{
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w.add_file((attachment as &[u8], name.as_str()));
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}
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if let Some(embed) = embed {
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w.embeds(vec![SerenityEmbed::fake(|c| {
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*c = embed;
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c
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})]);
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}
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w
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})
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.await
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{
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Ok(m) => {
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if reminder.pin {
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if let Some(message) = m {
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reminder.pin_message(message.id, cache_http.http()).await;
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}
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}
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Ok(())
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}
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Err(e) => Err(e),
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}
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}
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if self.enabled
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&& !(self.channel_paused
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&& self
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.channel_paused_until
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.map_or(true, |inner| inner >= Utc::now().naive_local()))
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{
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let _ = sqlx::query!(
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"
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UPDATE `channels` SET paused = 0, paused_until = NULL WHERE `channel` = ?
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",
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self.channel_id
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)
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.execute(pool)
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.await;
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let embed = Embed::from_id(pool, self.id).await.map(|e| e.into());
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let result = if let (Some(webhook_id), Some(webhook_token)) =
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(self.webhook_id, &self.webhook_token)
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{
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let webhook_res =
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cache_http.http().get_webhook_with_token(webhook_id, webhook_token).await;
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|
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if let Ok(webhook) = webhook_res {
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send_to_webhook(cache_http, &self, webhook, embed).await
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} else {
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warn!("Webhook vanished: {:?}", webhook_res);
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self.reset_webhook(pool).await;
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send_to_channel(cache_http, &self, embed).await
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}
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} else {
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send_to_channel(cache_http, &self, embed).await
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};
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|
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if let Err(e) = result {
|
|
error!("Error sending {:?}: {:?}", self, e);
|
|
|
|
if let Error::Http(error) = e {
|
|
if error.status_code() == Some(StatusCode::NOT_FOUND) {
|
|
warn!("Seeing channel is deleted. Removing reminder");
|
|
self.force_delete(pool).await;
|
|
} else if let HttpError::UnsuccessfulRequest(error) = *error {
|
|
if error.error.code == 50007 {
|
|
warn!("User cannot receive DMs");
|
|
self.force_delete(pool).await;
|
|
} else {
|
|
self.refresh(pool).await;
|
|
}
|
|
}
|
|
} else {
|
|
self.refresh(pool).await;
|
|
}
|
|
} else {
|
|
self.refresh(pool).await;
|
|
}
|
|
} else {
|
|
info!("Reminder {} is paused", self.id);
|
|
|
|
self.refresh(pool).await;
|
|
}
|
|
}
|
|
}
|