time parser struct

src/commands/info_cmds.rs

@@ -72,7 +72,12 @@ async fn clock(ctx: &Context, msg: &Message, args: String) -> CommandResult {
 
     let now = Utc::now().with_timezone(&tz);
 
+    if args == "12".to_string() {
+        let _ = msg.channel_id.say(&ctx, format!("Current time: **{}**", now.format("%I:%M:%S %p"))).await;
+    }
+    else {
         let _ = msg.channel_id.say(&ctx, format!("Current time: **{}**", now.format("%H:%M:%S"))).await;
+    }
 
     Ok(())
 }

src/commands/moderation_cmds.rs

@@ -22,6 +22,7 @@ use crate::{
     },
     SQLPool,
     framework::SendFromDb,
+    time_parser::TimeParser,
 };
 
 lazy_static! {
@@ -143,15 +144,3 @@ async fn prefix(ctx: &Context, msg: &Message, args: String) -> CommandResult {
 
     Ok(())
 }
-
-#[command]
-async fn pause(ctx: &Context, msg: &Message, args: String) -> CommandResult {
-    let pool = ctx.data.read().await
-        .get::<SQLPool>().cloned().expect("Could not get SQLPool from data");
-
-    let channel = ChannelData::from_channel(msg.channel(&ctx).await.unwrap(), pool.clone()).await.unwrap();
-
-    channel.commit_changes(pool).await;
-
-    Ok(())
-}

src/commands/reminder_cmds.rs

@@ -0,0 +1,73 @@
+use regex_command_attr::command;
+
+use serenity::{
+    client::Context,
+    model::{
+        channel::{
+            Message,
+        },
+    },
+    framework::standard::CommandResult,
+};
+
+use chrono_tz::{
+    Tz,
+    Etc::UTC,
+};
+
+use crate::{
+    models::{
+        ChannelData,
+        UserData,
+    },
+    SQLPool,
+    framework::SendFromDb,
+    time_parser::TimeParser,
+};
+
+use chrono::NaiveDateTime;
+
+
+#[command]
+async fn pause(ctx: &Context, msg: &Message, args: String) -> CommandResult {
+    let pool = ctx.data.read().await
+        .get::<SQLPool>().cloned().expect("Could not get SQLPool from data");
+
+    let user_data = UserData::from_id(&msg.author, &ctx, pool.clone()).await.unwrap();
+    let mut channel = ChannelData::from_channel(msg.channel(&ctx).await.unwrap(), pool.clone()).await.unwrap();
+
+    if args.len() == 0 {
+        channel.paused = !channel.paused;
+        channel.paused_until = None;
+
+        channel.commit_changes(pool).await;
+
+        if channel.paused {
+            let _ = msg.channel_id.say_named(&ctx, user_data.language, "paused/paused_indefinite").await;
+        }
+        else {
+            let _ = msg.channel_id.say_named(&ctx, user_data.language, "paused/unpaused").await;
+        }
+    }
+    else {
+        let parser = TimeParser::new(args, user_data.timezone.parse().unwrap());
+        let pause_until = parser.timestamp();
+
+        match pause_until {
+            Ok(timestamp) => {
+                channel.paused = true;
+                channel.paused_until = Some(NaiveDateTime::from_timestamp(timestamp, 0));
+
+                channel.commit_changes(pool).await;
+
+                let _ = msg.channel_id.say_named(&ctx, user_data.language, "paused/paused_until").await;
+            },
+
+            Err(_) => {
+                let _ = msg.channel_id.say_named(&ctx, user_data.language, "paused/invalid_time").await;
+            },
+        }
+    }
+
+    Ok(())
+}

src/main.rs

@@ -65,7 +65,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
         .add_command("todo", &todo_cmds::TODO_PARSE_COMMAND)
         .add_command("blacklist", &moderation_cmds::BLACKLIST_COMMAND)
         .add_command("timezone", &moderation_cmds::TIMEZONE_COMMAND)
-        .add_command("language", &moderation_cmds::LANGUAGE_COMMAND)
+        .add_command("lang", &moderation_cmds::LANGUAGE_COMMAND)
+        .add_command("pause", &reminder_cmds::PAUSE_COMMAND)
         .build();
 
     let mut client = Client::new(&env::var("DISCORD_TOKEN").expect("Missing DISCORD_TOKEN from environment"))

src/time_parser.rs

@@ -3,16 +3,38 @@ use std::time::{
     UNIX_EPOCH,
 };
 
+use std::fmt::{
+    Formatter,
+    Display,
+    Result as FmtResult,
+};
+
 use chrono_tz::Tz;
 use chrono::offset::Utc;
 use chrono::{Timelike, Datelike, TimeZone};
 
+#[derive(Debug)]
+pub enum InvalidTime {
+    ParseErrorDMY,
+    ParseErrorHMS,
+    ParseErrorDisplacement,
+    ParseErrorChrono,
+}
+
+impl Display for InvalidTime {
+    fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult {
+        write!(f, "InvalidTime: {:?}", self)
+    }
+}
+
+impl std::error::Error for InvalidTime {}
+
 enum ParseType {
     Explicit,
     Displacement,
 }
 
-struct TimeParser {
+pub struct TimeParser {
     timezone: Tz,
     inverted: bool,
     time_string: String,
@@ -43,19 +65,10 @@ impl TimeParser {
         }
     }
 
-    pub fn timestamp(&self) -> i32 {
+    pub fn timestamp(&self) -> Result<i64, InvalidTime> {
-        0
-    }
-
-    pub fn displacement(&self) -> i32 {
-        0
-    }
-
-    fn process(&self) -> i32 {
         match self.parse_type {
             ParseType::Explicit => {
-                // TODO remove unwrap from here
+                Ok(self.process_explicit()?)
-                self.process_explicit().unwrap()
             },
 
             ParseType::Displacement => {
@@ -64,45 +77,88 @@ impl TimeParser {
                     .duration_since(UNIX_EPOCH)
                     .expect("Time calculated as going backwards. Very bad");
 
-                since_epoch.as_secs() as i32 + self.process_displacement()
+                Ok(since_epoch.as_secs() as i64 + self.process_displacement()?)
             },
         }
     }
 
-    fn process_explicit(&self) -> Result<i32, Box<dyn std::error::Error>> {
+    pub fn displacement(&self) -> Result<i64, InvalidTime> {
-        let dt = self.timezone.datetime_from_str(self.time_string.as_str(), "%d/%m/%Y-%H:%M:%S")?;
+        match self.parse_type {
+            ParseType::Explicit => {
+                let now = SystemTime::now();
+                let since_epoch = now
+                    .duration_since(UNIX_EPOCH)
+                    .expect("Time calculated as going backwards. Very bad");
 
-        Ok(dt.timestamp() as i32)
+                Ok(self.process_explicit()? - since_epoch.as_secs() as i64)
+            },
+
+            ParseType::Displacement => {
+                Ok(self.process_displacement()?)
+            },
+        }
     }
 
-    fn process_displacement(&self) -> i32 {
+
+    fn process_explicit(&self) -> Result<i64, InvalidTime> {
+        let segments = self.time_string.matches("-").count();
+
+        let parse_string = if segments == 1 {
+            let slashes = self.time_string.matches("/").count();
+
+            match slashes {
+                0 => Ok("%d-".to_string()),
+                1 => Ok("%d/%m-".to_string()),
+                2 => Ok("%d/%m/%Y-".to_string()),
+                _ => Err(InvalidTime::ParseErrorDMY)
+            }
+        } else {
+            Ok("".to_string())
+        }? + if segments == 1 {
+            let colons = self.time_string.matches(":").count();
+
+            match colons {
+                1 => Ok("%H:%M"),
+                2 => Ok("%H:%M:%S"),
+                _ => Err(InvalidTime::ParseErrorHMS)
+            }
+        } else {
+            Ok("")
+        }?;
+
+        let dt = self.timezone.datetime_from_str(self.time_string.as_str(), &parse_string).map_err(|_| InvalidTime::ParseErrorChrono)?;
+
+        Ok(dt.timestamp() as i64)
+    }
+
+    fn process_displacement(&self) -> Result<i64, InvalidTime> {
         let mut current_buffer = "0".to_string();
 
-        let mut seconds = 0 as i32;
+        let mut seconds = 0 as i64;
-        let mut minutes = 0 as i32;
+        let mut minutes = 0 as i64;
-        let mut hours = 0 as i32;
+        let mut hours = 0 as i64;
-        let mut days = 0 as i32;
+        let mut days = 0 as i64;
 
         for character in self.time_string.chars() {
             match character {
 
                 's' => {
-                    seconds = current_buffer.parse::<i32>().unwrap();
+                    seconds = current_buffer.parse::<i64>().unwrap();
                     current_buffer = String::from("0");
                 },
 
                 'm' => {
-                    minutes = current_buffer.parse::<i32>().unwrap();
+                    minutes = current_buffer.parse::<i64>().unwrap();
                     current_buffer = String::from("0");
                 },
 
                 'h' => {
-                    hours = current_buffer.parse::<i32>().unwrap();
+                    hours = current_buffer.parse::<i64>().unwrap();
                     current_buffer = String::from("0");
                 },
 
                 'd' => {
-                    days = current_buffer.parse::<i32>().unwrap();
+                    days = current_buffer.parse::<i64>().unwrap();
                     current_buffer = String::from("0");
                 },
 
@@ -111,15 +167,15 @@ impl TimeParser {
                         current_buffer += &c.to_string();
                     }
                     else {
-                        // raise exception
+                        return Err(InvalidTime::ParseErrorDisplacement)
                     }
                 },
             }
         }
 
-        let full = seconds + (minutes * 60) + (hours * 3600) + (days * 86400) + current_buffer.parse::<i32>().unwrap() *
+        let full = seconds + (minutes * 60) + (hours * 3600) + (days * 86400) + current_buffer.parse::<i64>().unwrap() *
             if self.inverted { -1 } else { 1 };
 
-        full
+        Ok(full)
     }
 }