moved postman into separate crate

Cargo.lock

@@ -1073,6 +1073,22 @@ version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
 
+[[package]]
+name = "postman"
+version = "0.1.0"
+dependencies = [
+ "chrono",
+ "chrono-tz",
+ "env_logger",
+ "lazy_static",
+ "log",
+ "num-integer",
+ "regex",
+ "serenity",
+ "sqlx",
+ "tokio",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.16"
@@ -1228,6 +1244,7 @@ dependencies = [
  "levenshtein",
  "log",
  "num-integer",
+ "postman",
  "rand 0.7.3",
  "regex",
  "regex_command_attr",

Cargo.toml

@@ -28,6 +28,9 @@ base64 = "0.13.0"
 [dependencies.regex_command_attr]
 path = "command_attributes"
 
+[dependencies.postman]
+path = "postman"
+
 [dependencies.serenity]
 git = "https://github.com/serenity-rs/serenity"
 branch = "next"

postman/Cargo.toml

@@ -0,0 +1,32 @@
+[package]
+name = "postman"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+tokio = { version = "1", features = ["process", "full"] }
+regex = "1.4"
+log = "0.4"
+env_logger = "0.8"
+chrono = "0.4"
+chrono-tz = { version = "0.5", features = ["serde"] }
+lazy_static = "1.4"
+num-integer = "0.1"
+sqlx = { version = "0.5.10", features = ["runtime-tokio-rustls", "macros", "mysql", "bigdecimal", "chrono"]}
+
+[dependencies.serenity]
+git = "https://github.com/serenity-rs/serenity"
+branch = "next"
+default-features = false
+features = [
+    "builder",
+    "client",
+    "cache",
+    "gateway",
+    "http",
+    "model",
+    "utils",
+    "rustls_backend",
+    "collector",
+    "unstable_discord_api"
+]

postman/src/lib.rs

@@ -0,0 +1,33 @@
+mod sender;
+
+use log::info;
+use serenity::client::Context;
+use sqlx::{Executor, MySql};
+use std::env;
+use tokio::time::sleep_until;
+use tokio::time::{Duration, Instant};
+
+type Database = MySql;
+
+pub async fn initialize(ctx: Context, pool: impl Executor<'_, Database = Database> + Copy) {
+    let REMIND_INTERVAL = env::var("REMIND_INTERVAL")
+        .map(|inner| inner.parse::<u64>().ok())
+        .ok()
+        .flatten()
+        .unwrap_or(10);
+
+    loop {
+        let sleep_to = Instant::now() + Duration::from_secs(REMIND_INTERVAL);
+        let reminders = sender::Reminder::fetch_reminders(pool).await;
+
+        if reminders.len() > 0 {
+            info!("Preparing to send {} reminders.", reminders.len());
+
+            for reminder in reminders {
+                reminder.send(pool, ctx.clone()).await;
+            }
+        }
+
+        sleep_until(sleep_to).await;
+    }
+}

postman/src/sender.rs

@@ -1,5 +1,7 @@
+use crate::Database;
 use chrono::Duration;
 use chrono_tz::Tz;
+use lazy_static::lazy_static;
 use log::{error, info, warn};
 use num_integer::Integer;
 use regex::{Captures, Regex};
@@ -15,7 +17,7 @@ use serenity::{
 };
 use sqlx::{
     types::chrono::{NaiveDateTime, Utc},
-    MySqlPool,
+    Executor,
 };
 
 lazy_static! {
@@ -114,7 +116,10 @@ struct EmbedField {
 }
 
 impl Embed {
-    pub async fn from_id(pool: &MySqlPool, id: u32) -> Option<Self> {
+    pub async fn from_id(
+        pool: impl Executor<'_, Database = Database> + Copy,
+        id: u32,
+    ) -> Option<Self> {
         let mut inner = sqlx::query_as_unchecked!(
             EmbedInner,
             "
@@ -135,7 +140,7 @@ WHERE
             ",
             id
         )
-        .fetch_one(&pool.clone())
+        .fetch_one(pool)
         .await
         .unwrap();
 
@@ -265,7 +270,7 @@ pub struct Reminder {
 }
 
 impl Reminder {
-    pub async fn fetch_reminders(pool: &MySqlPool) -> Vec<Self> {
+    pub async fn fetch_reminders(pool: impl Executor<'_, Database = Database> + Copy) -> Vec<Self> {
         sqlx::query_as_unchecked!(
             Reminder,
             "
@@ -317,7 +322,7 @@ WHERE
         .collect::<Vec<Self>>()
     }
 
-    async fn reset_webhook(&self, pool: &MySqlPool) {
+    async fn reset_webhook(&self, pool: impl Executor<'_, Database = Database> + Copy) {
         let _ = sqlx::query!(
             "
 UPDATE channels SET webhook_id = NULL, webhook_token = NULL WHERE channel = ?
@@ -328,14 +333,15 @@ UPDATE channels SET webhook_id = NULL, webhook_token = NULL WHERE channel = ?
         .await;
     }
 
-    async fn refresh(&self, pool: &MySqlPool) {
+    async fn refresh(&self, pool: impl Executor<'_, Database = Database> + Copy) {
         if self.interval_seconds.is_some() || self.interval_months.is_some() {
             let now = Utc::now().naive_local();
             let mut updated_reminder_time = self.utc_time;
 
             if let Some(interval) = self.interval_months {
                 let row = sqlx::query!(
-                    "SELECT DATE_ADD(?, INTERVAL ? MONTH) AS new_time",
+                    // use the second date_add to force return value to datetime
+                    "SELECT DATE_ADD(DATE_ADD(?, INTERVAL ? MONTH), INTERVAL 0 SECOND) AS new_time",
                     updated_reminder_time,
                     interval
                 )
@@ -373,7 +379,7 @@ UPDATE reminders SET `utc_time` = ? WHERE `id` = ?
         }
     }
 
-    async fn force_delete(&self, pool: &MySqlPool) {
+    async fn force_delete(&self, pool: impl Executor<'_, Database = Database> + Copy) {
         sqlx::query!(
             "
 DELETE FROM reminders WHERE `id` = ?
@@ -389,7 +395,11 @@ DELETE FROM reminders WHERE `id` = ?
         let _ = http.as_ref().pin_message(self.channel_id, message_id.into(), None).await;
     }
 
-    pub async fn send(&self, pool: MySqlPool, cache_http: impl CacheHttp) {
+    pub async fn send(
+        &self,
+        pool: impl Executor<'_, Database = Database> + Copy,
+        cache_http: impl CacheHttp,
+    ) {
         async fn send_to_channel(
             cache_http: impl CacheHttp,
             reminder: &Reminder,
@@ -521,10 +531,10 @@ UPDATE `channels` SET paused = 0, paused_until = NULL WHERE `channel` = ?
                 ",
                 self.channel_id
             )
-            .execute(&pool.clone())
+            .execute(pool)
             .await;
 
-            let embed = Embed::from_id(&pool.clone(), self.id).await.map(|e| e.into());
+            let embed = Embed::from_id(pool, self.id).await.map(|e| e.into());
 
             let result = if let (Some(webhook_id), Some(webhook_token)) =
                 (self.webhook_id, &self.webhook_token)
@@ -537,7 +547,7 @@ UPDATE `channels` SET paused = 0, paused_until = NULL WHERE `channel` = ?
                 } else {
                     warn!("Webhook vanished: {:?}", webhook_res);
 
-                    self.reset_webhook(&pool.clone()).await;
+                    self.reset_webhook(pool).await;
                     send_to_channel(cache_http, &self, embed).await
                 }
             } else {
@@ -550,20 +560,20 @@ UPDATE `channels` SET paused = 0, paused_until = NULL WHERE `channel` = ?
                 if let Error::Http(error) = e {
                     if error.status_code() == Some(StatusCode::from_u16(404).unwrap()) {
                         error!("Seeing channel is deleted. Removing reminder");
-                        self.force_delete(&pool).await;
+                        self.force_delete(pool).await;
                     } else {
-                        self.refresh(&pool).await;
+                        self.refresh(pool).await;
                     }
                 } else {
-                    self.refresh(&pool).await;
+                    self.refresh(pool).await;
                 }
             } else {
-                self.refresh(&pool).await;
+                self.refresh(pool).await;
             }
         } else {
             info!("Reminder {} is paused", self.id);
 
-            self.refresh(&pool).await;
+            self.refresh(pool).await;
         }
     }
 }

src/commands/reminder_cmds.rs

@@ -323,7 +323,7 @@ async fn look(ctx: &Context, invoke: &mut CommandInvoke, args: CommandOptions) {
             .iter()
             .map(|reminder| reminder.display(&flags, &timezone))
             .fold(0, |t, r| t + r.len())
-            .div_ceil(EMBED_DESCRIPTION_MAX_LENGTH);
+            .div_ceil(&EMBED_DESCRIPTION_MAX_LENGTH);
 
         let pager = LookPager::new(flags, timezone);
 

src/component_models/mod.rs

@@ -3,6 +3,7 @@ pub(crate) mod pager;
 use std::io::Cursor;
 
 use chrono_tz::Tz;
+use num_integer::Integer;
 use rmp_serde::Serializer;
 use serde::{Deserialize, Serialize};
 use serenity::{
@@ -78,7 +79,7 @@ impl ComponentDataModel {
                     .iter()
                     .map(|reminder| reminder.display(&flags, &pager.timezone))
                     .fold(0, |t, r| t + r.len())
-                    .div_ceil(EMBED_DESCRIPTION_MAX_LENGTH);
+                    .div_ceil(&EMBED_DESCRIPTION_MAX_LENGTH);
 
                 let channel_name =
                     if let Some(Channel::Guild(channel)) = channel_id.to_channel_cached(&ctx) {

src/consts.rs

@@ -14,11 +14,6 @@ use regex::Regex;
 use serenity::model::prelude::AttachmentType;
 
 lazy_static! {
-    pub static ref REMIND_INTERVAL: u64 = env::var("REMIND_INTERVAL")
-        .map(|inner| inner.parse::<u64>().ok())
-        .ok()
-        .flatten()
-        .unwrap_or(10);
     pub static ref DEFAULT_AVATAR: AttachmentType<'static> = (
         include_bytes!(concat!(
             env!("CARGO_MANIFEST_DIR"),

src/main.rs

@@ -1,4 +1,3 @@
-#![feature(int_roundings)]
 #[macro_use]
 extern crate lazy_static;
 
@@ -9,7 +8,6 @@ mod framework;
 mod hooks;
 mod interval_parser;
 mod models;
-mod sender;
 mod time_parser;
 
 use std::{
@@ -24,6 +22,7 @@ use std::{
 use chrono_tz::Tz;
 use dotenv::dotenv;
 use log::info;
+use postman::initialize;
 use serenity::{
     async_trait,
     client::Client,
@@ -39,15 +38,12 @@ use serenity::{
     utils::shard_id,
 };
 use sqlx::mysql::MySqlPool;
-use tokio::{
-    sync::RwLock,
-    time::{Duration, Instant},
-};
+use tokio::sync::RwLock;
 
 use crate::{
     commands::{info_cmds, moderation_cmds, reminder_cmds, todo_cmds},
     component_models::ComponentDataModel,
-    consts::{CNC_GUILD, REMIND_INTERVAL, SUBSCRIPTION_ROLES, THEME_COLOR},
+    consts::{CNC_GUILD, SUBSCRIPTION_ROLES, THEME_COLOR},
     framework::RegexFramework,
     models::command_macro::CommandMacro,
 };
@@ -88,24 +84,10 @@ impl EventHandler for Handler {
 
         if !self.is_loop_running.load(Ordering::Relaxed) {
             let ctx = ctx_base.clone();
-
-            tokio::spawn(async move {
             let pool = ctx.data.read().await.get::<SQLPool>().cloned().unwrap();
 
-                loop {
-                    let sleep_until = Instant::now() + Duration::from_secs(*REMIND_INTERVAL);
-                    let reminders = sender::Reminder::fetch_reminders(&pool).await;
-
-                    if reminders.len() > 0 {
-                        info!("Preparing to send {} reminders.", reminders.len());
-
-                        for reminder in reminders {
-                            reminder.send(pool.clone(), ctx.clone()).await;
-                        }
-                    }
-
-                    tokio::time::sleep_until(sleep_until).await;
-                }
+            tokio::spawn(async move {
+                initialize(ctx, &pool).await;
             });
 
             self.is_loop_running.swap(true, Ordering::Relaxed);

web/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "web"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

web/src/lib.rs

@@ -0,0 +1,8 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        let result = 2 + 2;
+        assert_eq!(result, 4);
+    }
+}