Struct SessionRange 

pub struct SessionRange { /* private fields */ }

Per-session high-low range, keyed off the wall-clock hour of Candle::timestamp.

The local day (after shifting by utc_offset_minutes) is split into three eight-hour sessions: Asia 00:00..08:00, EU 08:00..16:00, US 16:00..24:00. Each session accumulates its own high / low; the reported range is high - low, or 0.0 before that session has seen a bar. All three re-anchor automatically at the day boundary.

Example

use wickra_core::{Candle, Indicator, SessionRange};

let hour = 3_600_000;
let mut sr = SessionRange::new(0);
// 02:00 UTC — Asia session.
sr.update(Candle::new(100.0, 104.0, 98.0, 101.0, 1.0, 2 * hour).unwrap());
// 10:00 UTC — EU session.
let v = sr.update(Candle::new(101.0, 110.0, 100.0, 109.0, 1.0, 10 * hour).unwrap()).unwrap();
assert_eq!(v.asia, 6.0);
assert_eq!(v.eu, 10.0);
assert_eq!(v.us, 0.0);

Implementations

impl SessionRange

pub const fn new(utc_offset_minutes: i32) -> Self

The offset is a constant and does not follow daylight saving: for a venue that observes it, one value is correct for part of the year and an hour out for the rest, which shifts every session boundary by an hour. Either pass the offset in force for the span being analysed and keep spans that cross a transition apart, or convert the timestamps to the venue’s wall clock upstream and pass 0. Construct a Session Range indicator with the given UTC offset (minutes).

pub const fn utc_offset_minutes(&self) -> i32

Configured UTC offset in minutes.

pub const fn value(&self) -> Option<SessionRangeOutput>

Most recent output if at least one bar has been seen.

Trait Implementations

impl Clone for SessionRange

fn clone(&self) -> SessionRange

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SessionRange

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Indicator for SessionRange

type Input = Candle

Type of one input data point (typically f64 for a price, or Candle / Tick).

type Output = SessionRangeOutput

Type of one output value.

fn update(&mut self, candle: Candle) -> Option<SessionRangeOutput>

Feed one new data point into the indicator and return the freshly computed output, or None if there is no value for this input.

fn reset(&mut self)

Reset all internal state, leaving the indicator equivalent to a freshly constructed instance with the same parameters.

fn warmup_period(&self) -> usize

Number of inputs required before the first non-None output can be produced.

fn is_ready(&self) -> bool

Whether the indicator has emitted at least one value since the last reset.

fn name(&self) -> &'static str

Stable, human-readable indicator name. Used by chaining and diagnostics.