Struct SeasonMap 

pub struct SeasonMap {
    pub cycle_type: SeasonCycleType,
    pub seasons: Vec<SeasonDefinition>,
}

Complete season definitions including cycle type and all season entries.

The SeasonMap is the resolved representation of the season_definitions section in stages.json. It provides the season-to-calendar mapping consumed by the PAR model and inflow history aggregation.

Source: stages.json season_definitions. See Input Scenarios §1.1.

Fields

cycle_type: SeasonCycleType

Cycle type controlling how season IDs map to calendar periods.

seasons: Vec<SeasonDefinition>

Season entries sorted by id. Length depends on cycle_type: 12 for Monthly, 52 for Weekly, user-defined for Custom.

Implementations

impl SeasonMap

pub fn season_for_date(&self, date: NaiveDate) -> Option<usize>

Resolve a calendar date to a season ID using the cycle definition.

This mapping is purely calendar-based and does not depend on the study horizon — a date from 1931 maps to the same season as a date from 2026 if they share the same calendar position. This is essential for PAR model estimation from historical inflow data that predates the study.

Returns None only for Custom cycle types where the date does not fall within any defined season range.

Trait Implementations

impl Clone for SeasonMap

fn clone(&self) -> SeasonMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SeasonMap

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

Formats the value using the given formatter.

impl PartialEq for SeasonMap

fn eq(&self, other: &SeasonMap) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SeasonMap