on any state on any state
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@ -1,10 +1,12 @@
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use std::collections::HashMap;
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use std::collections::{HashMap, HashSet};
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use std::future::Future;
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use bitfinex::positions::Position;
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use tokio::stream::StreamExt;
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use tokio::task::JoinHandle;
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use crate::pairs::PairStatus;
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use crate::positions::{PositionState, PositionWrapper};
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use crate::BoxError;
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#[derive(Copy, Clone)]
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@ -32,6 +34,7 @@ pub enum EventKind {
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TrailingStopMoved,
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OrderSubmitted,
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NewTick,
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Any,
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}
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#[derive(Copy, Clone)]
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@ -67,12 +70,21 @@ impl Event {
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pub struct EventDispatcher {
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event_handlers: HashMap<EventKind, Vec<Box<dyn Fn(&Event, &PairStatus) -> JoinHandle<()>>>>,
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position_state_handlers:
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HashMap<PositionState, Vec<Box<dyn Fn(&PositionWrapper, &PairStatus) -> JoinHandle<()>>>>,
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on_any_event_handlers: Vec<Box<dyn Fn(&Event, &PairStatus) -> JoinHandle<()>>>,
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on_any_position_state_handlers:
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Vec<Box<dyn Fn(&PositionWrapper, &PairStatus) -> JoinHandle<()>>>,
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}
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impl EventDispatcher {
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pub fn new() -> Self {
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EventDispatcher {
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event_handlers: HashMap::new(),
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position_state_handlers: HashMap::new(),
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on_any_event_handlers: Vec::new(),
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on_any_position_state_handlers: Vec::new(),
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}
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}
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@ -82,6 +94,24 @@ impl EventDispatcher {
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f(event, status);
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}
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}
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for f in &self.on_any_event_handlers {
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f(event, status);
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}
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}
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pub fn call_position_state_handlers(&self, pw: &PositionWrapper, status: &PairStatus) {
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if let Some(state) = pw.state() {
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if let Some(functions) = self.position_state_handlers.get(&state) {
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for f in functions {
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f(pw, status);
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}
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}
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}
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for f in &self.on_any_position_state_handlers {
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f(pw, status);
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}
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}
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pub fn register_event_handler<F: 'static, Fut: 'static>(&mut self, event: EventKind, f: F)
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@ -94,4 +124,18 @@ impl EventDispatcher {
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.or_default()
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.push(Box::new(move |e, s| tokio::spawn(f(&e, s))));
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}
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pub fn register_positionstate_handler<F: 'static, Fut: 'static>(
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&mut self,
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state: PositionState,
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f: F,
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) where
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F: Fn(&PositionWrapper, &PairStatus) -> Fut,
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Fut: Future<Output = ()> + Send,
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{
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self.position_state_handlers
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.entry(state)
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.or_default()
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.push(Box::new(move |pw, s| tokio::spawn(f(&pw, s))));
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}
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}
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@ -45,10 +45,12 @@ impl PairStatus {
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self.positions
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.entry(self.current_tick)
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.or_default()
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.push(pw);
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.push(pw.clone());
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// self.dispatcher.call_state_handlers(pw);
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// calling position state callbacks
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self.dispatcher.call_position_state_handlers(&pw, &self);
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// adding events and calling callbacks
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for e in events {
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self.add_event(e);
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}
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@ -1,6 +1,6 @@
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use bitfinex::positions::Position;
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#[derive(Copy, Clone)]
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#[derive(Copy, Clone, Eq, PartialEq, Hash)]
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pub enum PositionState {
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Critical,
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Loss,
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@ -12,10 +12,11 @@ pub enum PositionState {
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impl PositionState {
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fn color(self) -> String {
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match self {
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PositionState::Critical | PositionState::Loss => { "red" }
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PositionState::BreakEven => { "yellow" }
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PositionState::MinimumProfit | PositionState::Profit => { "green" }
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}.into()
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PositionState::Critical | PositionState::Loss => "red",
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PositionState::BreakEven => "yellow",
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PositionState::MinimumProfit | PositionState::Profit => "green",
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}
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.into()
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}
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}
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@ -28,7 +29,12 @@ pub struct PositionWrapper {
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}
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impl PositionWrapper {
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pub fn new(position: Position, net_pl: f64, net_pl_perc: f64, state: Option<PositionState>) -> Self {
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pub fn new(
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position: Position,
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net_pl: f64,
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net_pl_perc: f64,
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state: Option<PositionState>,
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) -> Self {
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PositionWrapper {
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position,
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net_pl,
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@ -36,8 +42,17 @@ impl PositionWrapper {
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state,
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}
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}
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pub fn position(&self) -> &Position {
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&self.position
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}
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pub fn net_pl(&self) -> f64 {
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self.net_pl
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}
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pub fn net_pl_perc(&self) -> f64 {
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self.net_pl_perc
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}
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pub fn state(&self) -> Option<PositionState> {
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self.state
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}
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}
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