wip: 🚧 rustlers core further development

app/main.rs

@@ -1,7 +1,8 @@
 use {
     dotenvy::dotenv,
     eyre::Result,
-    lool::logger::{info, ConsoleLogger, Level}, tokio::{join, select},
+    lool::logger::{info, ConsoleLogger, Level},
+    tokio::join,
 };
 
 // TODO: here we will trigger the start of both the grpc server and the websocket gateway
@@ -13,9 +14,9 @@ async fn main() -> Result<()> {
 
     dotenv()?;
     let conn = entities::db::get_connection().await?;
-    let mut rustler = rustlers::svc::RustlersSvc::new(conn.clone()).await;
+    let mut rustler = rustlers::svc::RustlersSvc::new(conn.clone(), None).await;
 
-    let (grpc_res, rustlers_res) = join! {
+    let (_grpc_res, _rustlers_res) = join! {
         grpc::server::start(conn.clone()),
         rustler.start(),
     };

entities/src/lib.rs

@@ -1,25 +1,27 @@
 pub use sea_orm;
 
 mod orm {
-    #[path = "market.rs"] pub mod market;
+    #[path = "market.rs"]
-    #[path = "ticker.rs"] pub mod ticker;
+    pub mod market;
+    #[path = "ticker.rs"]
+    pub mod ticker;
 }
 
 mod services {
-    #[path = "market.rs"] pub mod market;
+    #[path = "market.rs"]
-    #[path = "ticker.rs"] pub mod ticker;
+    pub mod market;
+    #[path = "ticker.rs"]
+    pub mod ticker;
 }
 
 /// market entities and services
 pub mod market {
-    pub use super::orm::market::*;
+    pub use super::{orm::market::*, services::market::*};
-    pub use super::services::market::*;
 }
 
 /// ticker entities and services
 pub mod ticker {
-    pub use super::orm::ticker::*;
+    pub use super::{orm::ticker::*, services::ticker::*};
-    pub use super::services::ticker::*;
 }
 
 /// database connection stuff
@@ -30,7 +32,6 @@ pub mod db {
         sea_orm::{
             ConnectOptions, ConnectionTrait, Database, DatabaseConnection, DbBackend, Statement,
         },
-        std::sync::Arc,
     };
 
     const RUSTLER_DATABASE: &str = "RUSTLER_DATABASE";

entities/src/services/market.rs

@@ -4,7 +4,7 @@ use {
         ticker::{Entity as Ticker, Model as TickerModel},
     },
     eyre::Result,
-    sea_orm::{DatabaseConnection, DbErr, EntityTrait, IntoActiveModel}
+    sea_orm::{DatabaseConnection, DbErr, EntityTrait, IntoActiveModel},
 };
 
 pub struct Service {

entities/src/services/ticker.rs

@@ -4,7 +4,7 @@ use {
         ticker::{Entity as Ticker, Model as TickerModel},
     },
     eyre::Result,
-    sea_orm::{ColumnTrait, DatabaseConnection, DbErr, EntityTrait, IntoActiveModel, QueryFilter}
+    sea_orm::{ColumnTrait, DatabaseConnection, DbErr, EntityTrait, IntoActiveModel, QueryFilter},
 };
 
 pub struct Service {

grpc/src/lib.rs

@@ -1,5 +1,8 @@
 mod services {
-    use entities::sea_orm::{DbErr, SqlErr};
+    use {
+        entities::sea_orm::{DbErr, SqlErr},
+        lool::s,
+    };
 
     pub mod market;
     pub mod ticker;
@@ -12,7 +15,7 @@ mod services {
                 tonic::Status::already_exists(format!("{} already exists", entity_name))
             }
             Some(SqlErr::ForeignKeyConstraintViolation(_)) => {
-                tonic::Status::failed_precondition(format!("Related entity does not exist"))
+                tonic::Status::failed_precondition(s!("Related entity does not exist"))
             }
             _ => tonic::Status::internal(format!("Error {} {}", action, entity_name)),
         }

grpc/src/server.rs

@@ -3,7 +3,7 @@ use {
     entities::{market, sea_orm::DatabaseConnection, ticker},
     eyre::Result,
     lool::{cli::stylize::Stylize, logger::info},
-    std::{net::SocketAddr, sync::Arc},
+    std::net::SocketAddr,
     tonic::transport::Server,
 };
 

grpc/src/services/market.rs

@@ -73,7 +73,7 @@ impl MarketApi for GrpcServer {
 
         let response = match result {
             Ok(mkts) => Ok(Response::new(Markets {
-                markets: mkts.to_owned().into_iter().map(Market::from_model).collect(),
+                markets: mkts.iter().cloned().map(Market::from_model).collect(),
             })),
             Err(err) => Err(handle_sql_err(err, "Getting", "markets")),
         };

grpc/src/services/ticker.rs

@@ -79,7 +79,7 @@ impl TickerApi for GrpcServer {
 
         let response = match result {
             Ok(mkts) => Ok(Response::new(Tickers {
-                tickers: mkts.to_owned().into_iter().map(Ticker::from_model).collect(),
+                tickers: mkts.iter().cloned().map(Ticker::from_model).collect(),
             })),
             Err(err) => Err(handle_sql_err(err, "Getting", "tickers")),
         };

rustlers/src/lib.rs

@@ -1,6 +1,3 @@
-pub mod rustlers;
 pub mod rustlerjar;
+pub mod rustlers;
 pub mod svc;
-
-use entities::{market, sea_orm::DatabaseConnection, ticker};
-

rustlers/src/rustlerjar.rs

@@ -1,6 +1,9 @@
-use entities::market;
+use {
-use std::collections::HashMap;
+    crate::rustlers::Rustler,
-use crate::rustlers::Rustler;
+    entities::market,
+    std::{collections::HashMap, sync::Arc},
+    tokio::sync::Mutex,
+};
 
 /// **🤠 » rustlerjar! macro**
 ///
@@ -52,7 +55,7 @@ macro_rules! rustlerjar {
 /// let rustler = rustler_jar.get(&market);
 /// ```
 pub struct RustlerJar {
-    rustlers: HashMap<String, Box<dyn Rustler>>,
+    rustlers: HashMap<String, Arc<Mutex<Box<dyn Rustler>>>>,
     mappings: HashMap<String, String>,
 }
 
@@ -63,18 +66,23 @@ impl RustlerJar {
     pub fn new(rustlers_list: Vec<Box<dyn Rustler>>, mappings: HashMap<String, String>) -> Self {
         let mut rustlers = HashMap::new();
         for rustler in rustlers_list {
-            rustlers.insert(rustler.name(), rustler);
+            rustlers.insert(rustler.name(), Arc::new(Mutex::new(rustler)));
         }
 
         Self { rustlers, mappings }
     }
 
     /// get the Rustler for the given market
-    pub fn get(&self, market: &market::Model) -> Option<&Box<dyn Rustler>> {
+    pub fn get(&self, market: &market::Model) -> Option<&Arc<Mutex<Box<dyn Rustler>>>> {
         let key = self.get_key(market);
         self.rustlers.get(key)
     }
 
+    pub fn get_mut(&mut self, market: &market::Model) -> Option<&mut Arc<Mutex<Box<dyn Rustler>>>> {
+        let key = self.get_key(market).to_owned();
+        self.rustlers.get_mut(&key)
+    }
+
     /// get the key from the mappings for the given market
     fn get_key(&self, market: &market::Model) -> &str {
         self.mappings.get(&market.short_name).unwrap()

rustlers/src/rustlers.rs

@@ -1,16 +1,15 @@
 pub mod binance;
+pub extern crate chrono;
+pub extern crate eyre;
 
 use {
     async_trait::async_trait,
     chrono::{DateTime, Local},
     entities::{market, ticker},
-    std::collections::HashMap,
     eyre::Result,
+    std::collections::HashMap,
 };
 
-pub extern crate eyre;
-pub extern crate chrono;
-
 #[derive(Debug, Clone, PartialEq, Eq, Default)]
 pub enum RustlerStatus {
     Connecting,
@@ -73,6 +72,14 @@ impl Ticker {
             market: m.short_name.clone(),
         }
     }
+
+    pub fn many_from(tickers: &[ticker::Model], market: &market::Model) -> Vec<Self> {
+        tickers.iter().map(|t| Self::from(t, market)).collect()
+    }
+
+    pub fn key(&self) -> String {
+        format!("{}:{}", self.market, self.symbol)
+    }
 }
 
 pub trait RustlerAccessor {
@@ -117,9 +124,9 @@ pub trait RustlerAccessor {
 pub trait Rustler: RustlerAccessor + Send + Sync {
     // #region Unimplemented trait functions
     /// fn called after tickers are added to the rustler
-    fn on_add(&mut self, tickers: Vec<Ticker>) -> Result<()>;
+    fn on_add(&mut self, tickers: &[Ticker]) -> Result<()>;
     /// fn called after tickers are deleted from the rustler
-    fn on_delete(&mut self, tickers: Vec<Ticker>) -> Result<()>;
+    fn on_delete(&mut self, tickers: &[Ticker]) -> Result<()>;
     /// connects the rustler to the data source
     async fn connect(&mut self) -> Result<()>;
     /// disconnects the rustler from the data source
@@ -165,16 +172,16 @@ pub trait Rustler: RustlerAccessor + Send + Sync {
     }
 
     /// adds new tickers to the rustler
-    async fn add(&mut self, new_tickers: Vec<Ticker>) -> Result<()> {
+    async fn add(&mut self, new_tickers: &Vec<Ticker>) -> Result<()> {
         let tickers = self.tickers_mut();
 
-        for new_ticker in &new_tickers {
+        for new_ticker in new_tickers {
             // if the ticker already exists in the tickers map, skip it
-            if tickers.contains_key(&new_ticker.symbol) {
+            if tickers.contains_key(&new_ticker.key()) {
                 continue;
             }
 
-            tickers.insert(new_ticker.symbol.clone(), new_ticker.clone());
+            tickers.insert(new_ticker.key(), new_ticker.clone());
         }
 
         if self.opts().connect_on_add {
@@ -189,11 +196,11 @@ pub trait Rustler: RustlerAccessor + Send + Sync {
     }
 
     /// deletes tickers from the rustler
-    async fn delete(&mut self, new_tickers: Vec<Ticker>) -> Result<()> {
+    async fn delete(&mut self, new_tickers: &Vec<Ticker>) -> Result<()> {
         let tickers = self.tickers_mut();
 
-        for new_ticker in &new_tickers {
+        for new_ticker in new_tickers {
-            tickers.remove(&new_ticker.symbol);
+            tickers.remove(&new_ticker.key());
         }
 
         // if after deleting the tickers the tickers map is
@@ -232,7 +239,10 @@ macro_rules! rustler_accessors {
         fn status(&self) -> &$crate::rustlers::RustlerStatus {
             &self.status
         }
-        fn set_status(&mut self, status: $crate::rustlers::RustlerStatus) -> $crate::rustlers::eyre::Result<()> {
+        fn set_status(
+            &mut self,
+            status: $crate::rustlers::RustlerStatus,
+        ) -> $crate::rustlers::eyre::Result<()> {
             self.status = status;
             self.handle_status_change()?;
 
@@ -247,31 +257,56 @@ macro_rules! rustler_accessors {
         fn next_run(&self) -> &$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local> {
             &self.next_run
         }
-        fn set_next_run(&mut self, next_run: $crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>) {
+        fn set_next_run(
+            &mut self,
+            next_run: $crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>,
+        ) {
             self.next_run = next_run;
         }
-        fn next_stop(&self) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
+        fn next_stop(
+            &self,
+        ) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
             &self.next_stop
         }
-        fn set_next_stop(&mut self, next_stop: Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>>) {
+        fn set_next_stop(
+            &mut self,
+            next_stop: Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>>,
+        ) {
             self.next_stop = next_stop;
         }
-        fn last_run(&self) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
+        fn last_run(
+            &self,
+        ) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
             &self.last_run
         }
-        fn set_last_run(&mut self, last_run: Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>>) {
+        fn set_last_run(
+            &mut self,
+            last_run: Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>>,
+        ) {
             self.last_run = last_run;
         }
-        fn last_stop(&self) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
+        fn last_stop(
+            &self,
+        ) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
             &self.last_stop
         }
-        fn set_last_stop(&mut self, last_stop: Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>>) {
+        fn set_last_stop(
+            &mut self,
+            last_stop: Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>>,
+        ) {
             self.last_stop = last_stop;
         }
-        fn last_update(&self) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
+        fn last_update(
+            &self,
+        ) -> &Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>> {
             &self.last_update
         }
-        fn set_last_update(&mut self, last_update: Option<$crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>>) {
+        fn set_last_update(
+            &mut self,
+            last_update: Option<
+                $crate::rustlers::chrono::DateTime<$crate::rustlers::chrono::Local>,
+            >,
+        ) {
             self.last_update = last_update;
         }
         fn opts(&self) -> &$crate::rustlers::RustlerOpts {

rustlers/src/rustlers/binance.rs

@@ -1,9 +1,7 @@
 use {
     crate::{
         rustler,
-        rustlers::{
+        rustlers::{Rustler, RustlerAccessor, RustlerStatus, Ticker},
-            Rustler, RustlerAccessor, RustlerStatus, Ticker
-        },
     },
     async_trait::async_trait,
     eyre::Result,
@@ -23,7 +21,7 @@ rustler!(
 );
 
 impl BinanceRustler {
-    pub fn new() -> impl Rustler {
+    pub fn create() -> impl Rustler {
         Self::default()
     }
 }
@@ -51,13 +49,13 @@ impl Rustler for BinanceRustler {
         Ok(())
     }
 
-    fn on_add(&mut self, tickers: Vec<Ticker>) -> Result<()> {
+    fn on_add(&mut self, tickers: &[Ticker]) -> Result<()> {
         info!("Adding tickers: {:?}", tickers);
 
         Ok(())
     }
 
-    fn on_delete(&mut self, tickers: Vec<Ticker>) -> Result<()> {
+    fn on_delete(&mut self, tickers: &[Ticker]) -> Result<()> {
         info!("Deleting tickers: {:?}", tickers);
 
         Ok(())

rustlers/src/svc.rs

@@ -1,16 +1,21 @@
-use entities::{market, sea_orm::DatabaseConnection, ticker};
+use {
-use eyre::{Ok, Result};
+    entities::{market, sea_orm::DatabaseConnection, ticker},
-use lool::{
+    eyre::Result,
-    logger::{info, warn},
+    lool::{
-    s,
+        logger::{info, warn},
-    sched::{
+        sched::{
-        recur, ruleset, scheduler::tokio::Scheduler, utils::parse_time, RecurrenceRuleSet,
+            recur, ruleset, scheduler::tokio::Scheduler, utils::parse_time, RecurrenceRuleSet,
-        SchedulingRule,
+            SchedulingRule,
+        },
     },
+    std::sync::Arc,
+    tokio::sync::Mutex,
 };
-use std::collections::HashMap;
 
-use crate::rustlers::{Rustler, Ticker};
+use crate::{
+    rustlerjar::RustlerJar,
+    rustlers::{Rustler, Ticker},
+};
 
 // interface MarketExecData {
 //     entity: MarketModel;
@@ -23,27 +28,28 @@ use crate::rustlers::{Rustler, Ticker};
 //     // subscription?: Subscription
 // }]]
 
-struct MarketExecData {
+// struct MarketExecData {
-    // entity: MarketModel,
+// entity: MarketModel,
-    // startJob?: Job,
+// startJob?: Job,
-    // stopJob?: Job,
+// stopJob?: Job,
-}
+// }
-
-type RustlerFactory = Box<dyn Send + Sync + FnMut(&market::Model) -> Option<Box<dyn Rustler>>>;
 
 pub struct RustlersSvc {
     market_svc: market::Service,
-    factory: RustlerFactory,
+    sched: Scheduler,
+    rustlers: RustlerJar,
 }
 
 impl RustlersSvc {
-    pub async fn new(conn: DatabaseConnection) -> Self {
+    /// creates a new instance of the `RustlersSvc`
+    pub async fn new(conn: DatabaseConnection, rustlers: Option<RustlerJar>) -> Self {
         let market_svc = market::Service::new(conn).await;
-        let factory = |_mkt: &market::Model| None;
+        let sched = Scheduler::new();
 
         Self {
             market_svc,
-            factory: Box::new(factory),
+            rustlers: rustlers.unwrap(),
+            sched,
         }
     }
 
@@ -54,7 +60,7 @@ impl RustlersSvc {
         let markets = self.market_svc.get_all_with_tickers().await?;
 
         for (market, tickers) in markets {
-            self.start_rustler_for((market, tickers)).await?;
+            self.schedule_rustler_for((market, tickers)).await?;
         }
 
         Ok(())
@@ -65,29 +71,45 @@ impl RustlersSvc {
         todo!()
     }
 
-    /// gets the corresponding rustler for the given market and starts it
+    /// gets the right rustler for the given market and starts it
     ///
     /// depending on the market configuraation, the rustler might be started
     /// immediately or its start might be scheduled for a later time
     ///
     /// this function also schedules the stop of the rustler at the end of the market
     /// trading hours if the market is configured to stop at a specific time
-    async fn start_rustler_for(
+    async fn schedule_rustler_for(
         &mut self,
         market: (market::Model, Vec<ticker::Model>),
     ) -> Result<()> {
         let (market, tickers) = market;
+        let tickers: Vec<Ticker> = tickers.into_iter().map(|t| Ticker::from(&t, &market)).collect();
+
         let rules = self.get_schedule_rules_for(&market)?;
-        let rustler = (self.factory)(&market);
+        let rustler = self.rustlers.get(&market);
 
         if let Some(rustler) = rustler {
             if let Some((start, end)) = rules {
-                let mut sched = Scheduler::new();
+                let start_name = format!("start-rustler-{}", market.short_name);
-                let start_name = format!("start-{}", market.short_name);
+                let end_name = format!("end-rustler-{}", market.short_name);
-                let end_name = format!("end-{}", market.short_name);
 
-                let start_job = sched.schedule(start_name, || async move {}, start).await;
+                let _start_job = self
-                let end_job = sched.schedule(end_name, || async move {}, end).await;
+                    .sched
+                    .schedule_fut(
+                        start_name.to_owned(),
+                        Self::start_rustler_for(rustler.clone(), tickers.clone()),
+                        start,
+                    )
+                    .await;
+
+                let _end_job = self
+                    .sched
+                    .schedule_fut(
+                        end_name.to_owned(),
+                        Self::stop_rustler_for(rustler.clone(), tickers),
+                        end,
+                    )
+                    .await;
 
                 Ok(())
             } else {
@@ -123,44 +145,56 @@ impl RustlersSvc {
         Ok(Some((recur(&start_rule), recur(&stop_rule))))
     }
 
-    /// get the rustler according to the market
-    fn get_rustler_for(&mut self, market: &market::Model) -> Option<Box<dyn Rustler>> {
-        let scrapper = (self.factory)(market);
-
-
-        scrapper
-    }
-
     /// starts a rustler by adding the tickers to it
-    async fn start_rustler(
+    async fn start_rustler_for(rustler: Arc<Mutex<Box<dyn Rustler>>>, tickers: Vec<Ticker>) {
-        rustler: &mut Box<dyn Rustler>,
+        let mut rustler = rustler.lock().await;
-        market: market::Model,
+        match rustler.start().await {
-        tickers: Vec<ticker::Model>,
+            Ok(()) => {
-    ) -> Result<()> {
+                if !tickers.is_empty() {
-        if tickers.len() > 0 {
+                    info!("Rustler {} started for market", rustler.name());
-            let tickers: Vec<Ticker> =
-                tickers.into_iter().map(|t| Ticker::from(&t, &market)).collect();
 
-            rustler.add(tickers).await?;
+                    match rustler.add(&tickers).await {
-        }
+                        Ok(()) => info!(
-
+                            "Tickers {:?} added to rustler '{}'",
-        Ok(())
+                            tickers,
+                            rustler.name()
+                        ),
+                        Err(e) => warn!(
+                            "Failed to add tickers to rustler '{}': {}",
+                            rustler.name(),
+                            e
+                        ),
+                    }
+                }
+            }
+            Err(e) => warn!("Failed to start rustler '{}': {}", rustler.name(), e),
+        };
     }
 
-    /// stops a rustler by deleting all its tickers
+    /// stops a rustler for the given market/tickers
-    async fn stop_rustler(
+    ///
-        rustler: &mut Box<dyn Rustler>,
+    /// if the rustler is being used by other markets, or the ticker list does not contain
-        market: market::Model,
+    /// all the tickers that the rustler is using for the given market, the rustler will not
-        tickers: Vec<ticker::Model>,
+    /// be stopped, but will stop gathering data for the given tickers.
-    ) -> Result<()> {
+    async fn stop_rustler_for(rustler: Arc<Mutex<Box<dyn Rustler>>>, tickers: Vec<Ticker>) {
-        if tickers.len() > 0 {
+        let mut rustler = rustler.lock().await;
-            let tickers: Vec<Ticker> =
-                tickers.into_iter().map(|t| Ticker::from(&t, &market)).collect();
 
-            rustler.delete(tickers).await?;
+        if !tickers.is_empty() {
+            // we delete the tickers from the rustler, but it will still be running if
+            // there are other markets using the same rustler.
+            match rustler.delete(&tickers).await {
+                Ok(()) => info!(
+                    "Tickers {:?} removed from rustler '{}'",
+                    tickers,
+                    rustler.name()
+                ),
+                Err(e) => warn!(
+                    "Failed to remove tickers from rustler '{}': {}",
+                    rustler.name(),
+                    e
+                ),
+            }
         }
-
-        Ok(())
     }
 }